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array(73) { ["id"]=> string(4) "1733" ["pdf_add"]=> string(53) "http://www.semtech.com/images/datasheet/smdaxxc-8.pdf" ["pdf_dir"]=> string(0) "" ["images_sw"]=> string(1) " " ["images_mk"]=> string(64) "//media.digikey.com/Renders/~~Pkg.Case%20or%20Series/14-SOIC.jpg" ["images"]=> string(80) "https://www.chenkeiot.com/Public/Uploads/Pcbfzk/Packjpg/14-SO-8.65-3.91-1.27.jpg" ["images_dir"]=> string(0) "" ["ljbh"]=> string(18) "SMDA15C-8.TBTTR-ND" ["zzsbh"]=> string(13) "SMDA15C-8.TBT" ["zddgs"]=> string(3) "500" ["xysl"]=> string(3) "500" ["cfkc"]=> string(1) "0" ["dj"]=> string(8) "0.000000" ["gys_id"]=> string(1) " " ["num"]=> string(1) " " ["price_addtime"]=> string(1) "0" ["ms"]=> string(22) "TVS DIODE 15V 24V 14SO" ["xl"]=> string(7) "SMDAC-8" ["zzs"]=> string(14) "SEMTECH/升特" ["zzs_new"]=> string(9) "未设定" ["zzs_old"]=> string(19) "Semtech Corporation" ["lm"]=> string(6) "未设" ["tdxl"]=> string(9) "未设定" ["lx"]=> string(6) "齐纳" ["dxtd"]=> string(6) "齐纳" ["sxdt"]=> string(1) "8" ["dy_fxkg"]=> string(15) "15V（最大）" ["dy_jc"]=> string(5) "16.7V" ["dy_qw"]=> string(3) "24V" ["dl_fzmc"]=> string(16) "10A（8/20µs）" ["gl_fzmc"]=> string(4) "300W" ["dyxbh"]=> string(3) "无" ["yy"]=> string(6) "通用" ["btplsddr"]=> string(11) "75pF @ 1MHz" ["gzwd"]=> string(23) "-55°C ~ 125°C（TJ）" ["azlx"]=> string(15) "表面贴装型" ["fz_wk"]=> string(23) "14-SOIC（3.90mm 宽）" ["gysqjfz"]=> string(5) "14-SO" ["djs"]=> string(1) "-" ["tag"]=> string(1) " " ["bz"]=> string(0) "" ["spq"]=> string(1) "-" ["moq"]=> string(2) "20" ["is_rohs"]=> string(1) "1" ["gl_zz"]=> string(6) "贴片" ["gl_pin"]=> string(2) "14" ["gl_dm"]=> string(1) "-" ["gl_dmtp"]=> string(0) "" ["symbol"]=> string(0) "" ["gl_vdd"]=> string(0) "" ["gl_gnd"]=> string(0) "" ["gl_jz"]=> string(1) " " ["gl_bdm"]=> string(1) "4" ["gl_bdmsm"]=> string(0) "" ["gl_kbc"]=> string(1) "0" ["gl_dmgx"]=> string(1) "0" ["pcbfzk_id"]=> string(1) "-" ["pcbfzk"]=> string(3) "759" ["ljzt"]=> string(6) "在售" ["jyid"]=> string(1) "-" ["cat_id"]=> string(3) "230" ["wl_num"]=> string(4) "1051" ["admin_id"]=> string(1) "0" ["mpn_bm"]=> string(13) "golon_tvs_ejg" ["ch_bm"]=> string(15) "TVS - 二极管" ["lock_dm"]=> string(1) "1" ["is_use_cat_id"]=> string(1) "0" ["is_new_time"]=> string(1) "0" ["ms_c"]=> string(1) " " ["ytfw"]=> string(1) "-" ["hot_or_top"]=> string(1) "0" ["yqjtd_pintopin"]=> string(1) " " ["yqjtd_jianrong"]=> string(1) " " }
select a.wl_num,a.parent_id,GROUP_CONCAT(b.cat_name,' ',a.cat_name) as lb,a.action_name,a.rate,a.rate_hot,ROUND(sum(a.rate+a.rate_hot/100),4) as moq_rate from golon_ics_category a left join golon_ics_category b on a.parent_id=b.id where a.mpn_bm='golon_tvs_ejg' array(1) { [0]=> array(7) { ["wl_num"]=> string(4) "1051" ["parent_id"]=> string(3) "228" ["lb"]=> string(29) "电路保护 TVS - 二极管" ["action_name"]=> string(2) "t2" ["rate"]=> string(5) "1.156" ["rate_hot"]=> string(2) "50" ["moq_rate"]=> string(6) "1.6560" } }
型号： SMDA15C-8.TBT复制
状态： 在售 修改
品牌： SEMTECH/升特复制
封装：14-SO
外壳：14-SOIC（3.90mm 宽）
描述： TVS DIODE 15V 24V 14SO
SELECT * FROM `golon_tvs_ejg` WHERE ( `id` = 1733 ) LIMIT 1
单向通道：齐纳
双向通道：8
反向截止电压(典型值V)：15V（最大）
箝位电压最大值(V)：24V
峰值脉冲电流(/us)：10A（8/20µs）
峰值脉冲功率(W)：300W
丝印：(请登录)
料号：10511733
量大可议价
起订量:20 修改
包装量: 修改
个
咨询客服
SELECT count(a.gys_id) as c FROM golon_gys_file_new a LEFT JOIN golon_gys_brand b on a.gys_id=b.id WHERE ( a.zzsbh = 'SMDA15C-8.TBT' ) LIMIT 1
array(73) { ["id"]=> string(4) "2406" ["pdf_add"]=> string(53) "http://www.semtech.com/images/datasheet/smdaxxc-8.pdf" ["pdf_dir"]=> string(0) "" ["images_sw"]=> string(1) " " ["images_mk"]=> string(64) "//media.digikey.com/Renders/~~Pkg.Case%20or%20Series/14-SOIC.jpg" ["images"]=> string(80) "https://www.chenkeiot.com/Public/Uploads/Pcbfzk/Packjpg/14-SO-8.65-3.91-1.27.jpg" ["images_dir"]=> string(0) "" ["ljbh"]=> string(18) "SMDA12C-8.TBTTR-ND" ["zzsbh"]=> string(13) "SMDA12C-8.TBT" ["zddgs"]=> string(3) "500" ["xysl"]=> string(3) "500" ["cfkc"]=> string(1) "0" ["dj"]=> string(8) "0.000000" ["gys_id"]=> string(1) " " ["num"]=> string(1) " " ["price_addtime"]=> string(1) "0" ["ms"]=> string(20) "TVS DIODE 12VWM 19VC" ["xl"]=> string(7) "SMDAC-8" ["zzs"]=> string(14) "SEMTECH/升特" ["zzs_new"]=> string(9) "未设定" ["zzs_old"]=> string(19) "Semtech Corporation" ["lm"]=> string(6) "未设" ["tdxl"]=> string(9) "未设定" ["lx"]=> string(6) "齐纳" ["dxtd"]=> string(1) "-" ["sxdt"]=> string(1) "8" ["dy_fxkg"]=> string(15) "12V（最大）" ["dy_jc"]=> string(5) "13.3V" ["dy_qw"]=> string(3) "19V" ["dl_fzmc"]=> string(16) "12A（8/20µs）" ["gl_fzmc"]=> string(4) "300W" ["dyxbh"]=> string(3) "无" ["yy"]=> string(6) "通用" ["btplsddr"]=> string(12) "120pF @ 1MHz" ["gzwd"]=> string(23) "-55°C ~ 125°C（TJ）" ["azlx"]=> string(12) "表面贴装" ["fz_wk"]=> string(23) "14-SOIC（3.90mm 宽）" ["gysqjfz"]=> string(5) "14-SO" ["djs"]=> string(1) "-" ["tag"]=> string(1) " " ["bz"]=> string(6) "圆盘" ["spq"]=> string(1) "-" ["moq"]=> string(2) "20" ["is_rohs"]=> string(1) "1" ["gl_zz"]=> string(6) "贴片" ["gl_pin"]=> string(2) "14" ["gl_dm"]=> string(1) "-" ["gl_dmtp"]=> string(0) "" ["symbol"]=> string(0) "" ["gl_vdd"]=> string(0) "" ["gl_gnd"]=> string(0) "" ["gl_jz"]=> string(1) " " ["gl_bdm"]=> string(1) "4" ["gl_bdmsm"]=> string(0) "" ["gl_kbc"]=> string(1) "0" ["gl_dmgx"]=> string(1) "0" ["pcbfzk_id"]=> string(1) "-" ["pcbfzk"]=> string(3) "759" ["ljzt"]=> string(6) "在售" ["jyid"]=> string(1) "-" ["cat_id"]=> string(3) "230" ["wl_num"]=> string(4) "1051" ["admin_id"]=> string(1) "0" ["mpn_bm"]=> string(13) "golon_tvs_ejg" ["ch_bm"]=> string(15) "TVS - 二极管" ["lock_dm"]=> string(1) "1" ["is_use_cat_id"]=> string(1) "0" ["is_new_time"]=> string(1) "0" ["ms_c"]=> string(1) " " ["ytfw"]=> string(1) "-" ["hot_or_top"]=> string(1) "0" ["yqjtd_pintopin"]=> string(1) " " ["yqjtd_jianrong"]=> string(1) " " }
select a.wl_num,a.parent_id,GROUP_CONCAT(b.cat_name,' ',a.cat_name) as lb,a.action_name,a.rate,a.rate_hot,ROUND(sum(a.rate+a.rate_hot/100),4) as moq_rate from golon_ics_category a left join golon_ics_category b on a.parent_id=b.id where a.mpn_bm='golon_tvs_ejg' array(1) { [0]=> array(7) { ["wl_num"]=> string(4) "1051" ["parent_id"]=> string(3) "228" ["lb"]=> string(29) "电路保护 TVS - 二极管" ["action_name"]=> string(2) "t2" ["rate"]=> string(5) "1.156" ["rate_hot"]=> string(2) "50" ["moq_rate"]=> string(6) "1.6560" } }
型号： SMDA12C-8.TBT复制
状态： 在售 修改
品牌： SEMTECH/升特复制
封装：14-SO
外壳：14-SOIC（3.90mm 宽）
描述： TVS DIODE 12VWM 19VC
SELECT * FROM `golon_tvs_ejg` WHERE ( `id` = 2406 ) LIMIT 1
单向通道：-
双向通道：8
反向截止电压(典型值V)：12V（最大）
箝位电压最大值(V)：19V
峰值脉冲电流(/us)：12A（8/20µs）
峰值脉冲功率(W)：300W
丝印：(请登录)
料号：10512406
量大可议价
起订量:20 修改
包装量: 圆盘 修改
个
咨询客服
SELECT count(a.gys_id) as c FROM golon_gys_file_new a LEFT JOIN golon_gys_brand b on a.gys_id=b.id WHERE ( a.zzsbh = 'SMDA12C-8.TBT' ) LIMIT 1
array(73) { ["id"]=> string(4) "3314" ["pdf_add"]=> string(53) "http://www.semtech.com/images/datasheet/smdaxxc-8.pdf" ["pdf_dir"]=> string(0) "" ["images_sw"]=> string(1) " " ["images_mk"]=> string(64) "//media.digikey.com/Renders/~~Pkg.Case%20or%20Series/14-SOIC.jpg" ["images"]=> string(80) "https://www.chenkeiot.com/Public/Uploads/Pcbfzk/Packjpg/14-SO-8.65-3.91-1.27.jpg" ["images_dir"]=> string(0) "" ["ljbh"]=> string(19) "SMDA24C-8.TBTSTR-ND" ["zzsbh"]=> string(13) "SMDA24C-8.TBT" ["zddgs"]=> string(3) "500" ["xysl"]=> string(3) "500" ["cfkc"]=> string(1) "0" ["dj"]=> string(8) "0.000000" ["gys_id"]=> string(1) " " ["num"]=> string(1) " " ["price_addtime"]=> string(1) "0" ["ms"]=> string(22) "TVS DIODE 24V 43V 14SO" ["xl"]=> string(7) "SMDAC-8" ["zzs"]=> string(14) "SEMTECH/升特" ["zzs_new"]=> string(9) "未设定" ["zzs_old"]=> string(19) "Semtech Corporation" ["lm"]=> string(6) "未设" ["tdxl"]=> string(9) "未设定" ["lx"]=> string(6) "齐纳" ["dxtd"]=> string(6) "齐纳" ["sxdt"]=> string(1) "8" ["dy_fxkg"]=> string(15) "24V（最大）" ["dy_jc"]=> string(5) "26.7V" ["dy_qw"]=> string(3) "43V" ["dl_fzmc"]=> string(15) "5A（8/20µs）" ["gl_fzmc"]=> string(4) "300W" ["dyxbh"]=> string(3) "无" ["yy"]=> string(6) "通用" ["btplsddr"]=> string(11) "50pF @ 1MHz" ["gzwd"]=> string(23) "-55°C ~ 125°C（TJ）" ["azlx"]=> string(15) "表面贴装型" ["fz_wk"]=> string(23) "14-SOIC（3.90mm 宽）" ["gysqjfz"]=> string(5) "14-SO" ["djs"]=> string(1) "-" ["tag"]=> string(1) " " ["bz"]=> string(0) "" ["spq"]=> string(1) "-" ["moq"]=> string(2) "20" ["is_rohs"]=> string(1) "1" ["gl_zz"]=> string(6) "贴片" ["gl_pin"]=> string(2) "14" ["gl_dm"]=> string(1) "-" ["gl_dmtp"]=> string(0) "" ["symbol"]=> string(0) "" ["gl_vdd"]=> string(0) "" ["gl_gnd"]=> string(0) "" ["gl_jz"]=> string(1) " " ["gl_bdm"]=> string(1) "4" ["gl_bdmsm"]=> string(0) "" ["gl_kbc"]=> string(1) "0" ["gl_dmgx"]=> string(1) "0" ["pcbfzk_id"]=> string(1) "-" ["pcbfzk"]=> string(3) "759" ["ljzt"]=> string(6) "在售" ["jyid"]=> string(1) "-" ["cat_id"]=> string(3) "230" ["wl_num"]=> string(4) "1051" ["admin_id"]=> string(1) "0" ["mpn_bm"]=> string(13) "golon_tvs_ejg" ["ch_bm"]=> string(15) "TVS - 二极管" ["lock_dm"]=> string(1) "1" ["is_use_cat_id"]=> string(1) "0" ["is_new_time"]=> string(1) "0" ["ms_c"]=> string(1) " " ["ytfw"]=> string(1) "-" ["hot_or_top"]=> string(1) "0" ["yqjtd_pintopin"]=> string(1) " " ["yqjtd_jianrong"]=> string(1) " " }
select a.wl_num,a.parent_id,GROUP_CONCAT(b.cat_name,' ',a.cat_name) as lb,a.action_name,a.rate,a.rate_hot,ROUND(sum(a.rate+a.rate_hot/100),4) as moq_rate from golon_ics_category a left join golon_ics_category b on a.parent_id=b.id where a.mpn_bm='golon_tvs_ejg' array(1) { [0]=> array(7) { ["wl_num"]=> string(4) "1051" ["parent_id"]=> string(3) "228" ["lb"]=> string(29) "电路保护 TVS - 二极管" ["action_name"]=> string(2) "t2" ["rate"]=> string(5) "1.156" ["rate_hot"]=> string(2) "50" ["moq_rate"]=> string(6) "1.6560" } }
型号： SMDA24C-8.TBT复制
状态： 在售 修改
品牌： SEMTECH/升特复制
封装：14-SO
外壳：14-SOIC（3.90mm 宽）
描述： TVS DIODE 24V 43V 14SO
SELECT * FROM `golon_tvs_ejg` WHERE ( `id` = 3314 ) LIMIT 1
单向通道：齐纳
双向通道：8
反向截止电压(典型值V)：24V（最大）
箝位电压最大值(V)：43V
峰值脉冲电流(/us)：5A（8/20µs）
峰值脉冲功率(W)：300W
丝印：(请登录)
料号：10513314
量大可议价
起订量:20 修改
包装量: 修改
个
咨询客服
SELECT count(a.gys_id) as c FROM golon_gys_file_new a LEFT JOIN golon_gys_brand b on a.gys_id=b.id WHERE ( a.zzsbh = 'SMDA24C-8.TBT' ) LIMIT 1
array(73) { ["id"]=> string(4) "7353" ["pdf_add"]=> string(53) "http://www.semtech.com/images/datasheet/smdaxxc-8.pdf" ["pdf_dir"]=> string(0) "" ["images_sw"]=> string(1) " " ["images_mk"]=> string(64) "//media.digikey.com/Renders/~~Pkg.Case%20or%20Series/14-SOIC.jpg" ["images"]=> string(80) "https://www.chenkeiot.com/Public/Uploads/Pcbfzk/Packjpg/14-SO-8.65-3.91-1.27.jpg" ["images_dir"]=> string(0) "" ["ljbh"]=> string(18) "SMDA05C-8.TBTTR-ND" ["zzsbh"]=> string(13) "SMDA05C-8.TBT" ["zddgs"]=> string(3) "500" ["xysl"]=> string(4) "1500" ["cfkc"]=> string(1) "0" ["dj"]=> string(8) "0.000000" ["gys_id"]=> string(1) " " ["num"]=> string(1) " " ["price_addtime"]=> string(1) "0" ["ms"]=> string(20) "TVS DIODE 5VWM 9.8VC" ["xl"]=> string(7) "SMDAC-8" ["zzs"]=> string(14) "SEMTECH/升特" ["zzs_new"]=> string(9) "未设定" ["zzs_old"]=> string(19) "Semtech Corporation" ["lm"]=> string(6) "未设" ["tdxl"]=> string(9) "未设定" ["lx"]=> string(6) "齐纳" ["dxtd"]=> string(1) "-" ["sxdt"]=> string(1) "8" ["dy_fxkg"]=> string(14) "5V（最大）" ["dy_jc"]=> string(2) "6V" ["dy_qw"]=> string(4) "9.8V" ["dl_fzmc"]=> string(16) "17A（8/20µs）" ["gl_fzmc"]=> string(4) "300W" ["dyxbh"]=> string(3) "无" ["yy"]=> string(6) "通用" ["btplsddr"]=> string(12) "350pF @ 1MHz" ["gzwd"]=> string(23) "-55°C ~ 125°C（TJ）" ["azlx"]=> string(12) "表面贴装" ["fz_wk"]=> string(23) "14-SOIC（3.90mm 宽）" ["gysqjfz"]=> string(5) "14-SO" ["djs"]=> string(1) "-" ["tag"]=> string(1) " " ["bz"]=> string(6) "圆盘" ["spq"]=> string(1) "-" ["moq"]=> string(2) "20" ["is_rohs"]=> string(1) "1" ["gl_zz"]=> string(6) "贴片" ["gl_pin"]=> string(2) "14" ["gl_dm"]=> string(1) "-" ["gl_dmtp"]=> string(0) "" ["symbol"]=> string(0) "" ["gl_vdd"]=> string(0) "" ["gl_gnd"]=> string(0) "" ["gl_jz"]=> string(1) " " ["gl_bdm"]=> string(1) "4" ["gl_bdmsm"]=> string(0) "" ["gl_kbc"]=> string(1) "0" ["gl_dmgx"]=> string(1) "0" ["pcbfzk_id"]=> string(1) "-" ["pcbfzk"]=> string(3) "759" ["ljzt"]=> string(6) "在售" ["jyid"]=> string(1) "-" ["cat_id"]=> string(3) "230" ["wl_num"]=> string(4) "1051" ["admin_id"]=> string(1) "0" ["mpn_bm"]=> string(13) "golon_tvs_ejg" ["ch_bm"]=> string(15) "TVS - 二极管" ["lock_dm"]=> string(1) "1" ["is_use_cat_id"]=> string(1) "0" ["is_new_time"]=> string(1) "0" ["ms_c"]=> string(1) " " ["ytfw"]=> string(1) "-" ["hot_or_top"]=> string(1) "0" ["yqjtd_pintopin"]=> string(1) " " ["yqjtd_jianrong"]=> string(1) " " }
select a.wl_num,a.parent_id,GROUP_CONCAT(b.cat_name,' ',a.cat_name) as lb,a.action_name,a.rate,a.rate_hot,ROUND(sum(a.rate+a.rate_hot/100),4) as moq_rate from golon_ics_category a left join golon_ics_category b on a.parent_id=b.id where a.mpn_bm='golon_tvs_ejg' array(1) { [0]=> array(7) { ["wl_num"]=> string(4) "1051" ["parent_id"]=> string(3) "228" ["lb"]=> string(29) "电路保护 TVS - 二极管" ["action_name"]=> string(2) "t2" ["rate"]=> string(5) "1.156" ["rate_hot"]=> string(2) "50" ["moq_rate"]=> string(6) "1.6560" } }
型号： SMDA05C-8.TBT复制
状态： 在售 修改
品牌： SEMTECH/升特复制
封装：14-SO
外壳：14-SOIC（3.90mm 宽）
描述： TVS DIODE 5VWM 9.8VC
SELECT * FROM `golon_tvs_ejg` WHERE ( `id` = 7353 ) LIMIT 1
单向通道：-
双向通道：8
反向截止电压(典型值V)：5V（最大）
箝位电压最大值(V)：9.8V
峰值脉冲电流(/us)：17A（8/20µs）
峰值脉冲功率(W)：300W
丝印：(请登录)
料号：10517353
量大可议价
起订量:20 修改
包装量: 圆盘 修改
个
咨询客服
SELECT count(a.gys_id) as c FROM golon_gys_file_new a LEFT JOIN golon_gys_brand b on a.gys_id=b.id WHERE ( a.zzsbh = 'SMDA05C-8.TBT' ) LIMIT 1
array(75) { ["id"]=> string(4) "1543" ["pdf_add"]=> string(61) "http://www.semtech.com/apps/filedown/down.php?file=sc1110.pdf" ["pdf_dir"]=> string(0) "" ["images_sw"]=> string(1) " " ["images_mk"]=> string(70) "https://media.digikey.com/Renders/~~Pkg.Case%20or%20Series/14-SOIC.jpg" ["images"]=> string(80) "https://www.chenkeiot.com/Public/imagesmk/Renders/Pkg.Case_or_Series/14-SOIC.jpg" ["images_dir"]=> string(0) "" ["ljbh"]=> string(14) "SC1110CSTRT-ND" ["zzsbh"]=> string(11) "SC1110CSTRT" ["zddgs"]=> string(4) "2500" ["xysl"]=> string(1) "0" ["cfkc"]=> string(1) "0" ["dj"]=> string(8) "0.000000" ["gys_id"]=> string(1) " " ["num"]=> string(1) " " ["price_addtime"]=> string(1) "0" ["ms"]=> string(24) "IC REG CTRLR BUCK 14SOIC" ["xl"]=> string(1) "-" ["zzs"]=> string(14) "SEMTECH/升特" ["zzs_new"]=> string(9) "未设定" ["zzs_old"]=> string(19) "Semtech Corporation" ["lm"]=> string(1) "-" ["tdxl"]=> string(9) "未设定" ["sclx"]=> string(18) "晶体管驱动器" ["gn"]=> string(6) "降压" ["scpz"]=> string(3) "正" ["tp"]=> string(6) "降压" ["scs"]=> string(1) "1" ["scjd"]=> string(1) "1" ["dydy_vcc_vdd"]=> string(12) "4.4V ~ 12.6V" ["pl_kg"]=> string(6) "250kHz" ["zkb_max"]=> string(3) "95%" ["tbzlq"]=> string(3) "是" ["sztb"]=> string(3) "无" ["cxjk"]=> string(1) "-" ["kztx"]=> string(42) "限流，使能，相位控制，软启动" ["gzwd"]=> string(20) "0°C ~ 70°C（TA）" ["azlx"]=> string(15) "表面贴装型" ["bz"]=> string(0) "" ["spq"]=> string(1) "-" ["moq"]=> string(2) "10" ["is_rohs"]=> string(1) "1" ["fz_wk"]=> string(23) "14-SOIC（3.90mm 宽）" ["gysqjfz"]=> string(5) "14-SO" ["djs"]=> string(1) "-" ["tag"]=> string(1) " " ["gl_zz"]=> string(6) "贴片" ["gl_pin"]=> string(2) "14" ["gl_dm"]=> string(1) "-" ["gl_dmtp"]=> string(0) "" ["symbol"]=> string(0) "" ["gl_vdd"]=> string(1) "-" ["gl_gnd"]=> string(1) "-" ["gl_jz"]=> string(1) " " ["gl_bdm"]=> string(1) "4" ["gl_bdmsm"]=> string(0) "" ["gl_kbc"]=> string(1) "0" ["gl_dmgx"]=> string(1) "0" ["pcbfzk_id"]=> string(0) "" ["pcbfzk"]=> string(1) "-" ["ljzt"]=> string(6) "在售" ["jyid"]=> string(1) "-" ["cat_id"]=> string(3) "100" ["wl_num"]=> string(4) "1149" ["admin_id"]=> string(1) "0" ["mpn_bm"]=> string(25) "golon_pmic_wyq_dc_dcqhkzq" ["ch_bm"]=> string(40) "DC-DC切换控制器,稳压器(直流）" ["lock_dm"]=> string(1) "1" ["is_use_cat_id"]=> string(1) "0" ["is_new_time"]=> string(1) "0" ["ms_c"]=> string(1) " " ["ytfw"]=> string(1) "-" ["hot_or_top"]=> string(1) "0" ["yqjtd_pintopin"]=> string(1) " " ["yqjtd_jianrong"]=> string(1) " " }
select a.wl_num,a.parent_id,GROUP_CONCAT(b.cat_name,' ',a.cat_name) as lb,a.action_name,a.rate,a.rate_hot,ROUND(sum(a.rate+a.rate_hot/100),4) as moq_rate from golon_ics_category a left join golon_ics_category b on a.parent_id=b.id where a.mpn_bm='golon_pmic_wyq_dc_dcqhkzq' array(1) { [0]=> array(7) { ["wl_num"]=> string(4) "1149" ["parent_id"]=> string(2) "80" ["lb"]=> string(58) "电源管理PMIC DC-DC切换控制器,稳压器(直流）" ["action_name"]=> string(3) "p20" ["rate"]=> string(5) "1.096" ["rate_hot"]=> string(2) "40" ["moq_rate"]=> string(6) "1.4960" } }
型号： SC1110CSTRT复制
状态： 在售 修改
品牌： SEMTECH/升特复制
封装：14-SO
外壳：14-SOIC（3.90mm 宽）
描述： IC REG CTRLR BUCK 14SOIC
SELECT * FROM `golon_pmic_wyq_dc_dcqhkzq` WHERE ( `images_mk` = '1543' ) LIMIT 1
输出类型：
功能：
拓扑：
输出数：
电压-电源(vcc/vdd)：
频率-开关：
占空比（最大）：
控制特性：
类别：
丝印：
料号：1149
量大可议价
参考价: array(5) { ["count"]=> string(1) "0" ["gys_id"]=> NULL ["zzsbh"]=> NULL ["price"]=> NULL ["show_price"]=> NULL }
起订量: 修改
包装量: 修改
个
咨询客服
SELECT count(a.gys_id) as c FROM golon_gys_file_new a LEFT JOIN golon_gys_brand b on a.gys_id=b.id WHERE ( a.zzsbh = null ) LIMIT 1
array(75) { ["id"]=> string(4) "5879" ["pdf_add"]=> string(61) "http://www.semtech.com/apps/filedown/down.php?file=sc2621.pdf" ["pdf_dir"]=> string(0) "" ["images_sw"]=> string(1) " " ["images_mk"]=> string(70) "https://media.digikey.com/Renders/~~Pkg.Case%20or%20Series/14-SOIC.jpg" ["images"]=> string(80) "https://www.chenkeiot.com/Public/imagesmk/Renders/Pkg.Case_or_Series/14-SOIC.jpg" ["images_dir"]=> string(0) "" ["ljbh"]=> string(13) "SC2621STRT-ND" ["zzsbh"]=> string(10) "SC2621STRT" ["zddgs"]=> string(4) "2500" ["xysl"]=> string(1) "0" ["cfkc"]=> string(1) "0" ["dj"]=> string(8) "0.000000" ["gys_id"]=> string(1) " " ["num"]=> string(1) " " ["price_addtime"]=> string(1) "0" ["ms"]=> string(24) "IC REG CTRLR BUCK 14SOIC" ["xl"]=> string(1) "-" ["zzs"]=> string(14) "SEMTECH/升特" ["zzs_new"]=> string(9) "未设定" ["zzs_old"]=> string(19) "Semtech Corporation" ["lm"]=> string(1) "-" ["tdxl"]=> string(9) "未设定" ["sclx"]=> string(18) "晶体管驱动器" ["gn"]=> string(6) "降压" ["scpz"]=> string(3) "正" ["tp"]=> string(6) "降压" ["scs"]=> string(1) "1" ["scjd"]=> string(1) "1" ["dydy_vcc_vdd"]=> string(8) "4V ~ 16V" ["pl_kg"]=> string(6) "500kHz" ["zkb_max"]=> string(3) "97%" ["tbzlq"]=> string(3) "是" ["sztb"]=> string(3) "无" ["cxjk"]=> string(1) "-" ["kztx"]=> string(21) "限流，相位控制" ["gzwd"]=> string(22) "-25°C ~ 85°C（TA）" ["azlx"]=> string(15) "表面贴装型" ["bz"]=> string(0) "" ["spq"]=> string(1) "-" ["moq"]=> string(2) "10" ["is_rohs"]=> string(1) "1" ["fz_wk"]=> string(23) "14-SOIC（3.90mm 宽）" ["gysqjfz"]=> string(5) "14-SO" ["djs"]=> string(1) "-" ["tag"]=> string(1) " " ["gl_zz"]=> string(6) "贴片" ["gl_pin"]=> string(2) "14" ["gl_dm"]=> string(1) "-" ["gl_dmtp"]=> string(0) "" ["symbol"]=> string(0) "" ["gl_vdd"]=> string(1) "-" ["gl_gnd"]=> string(1) "-" ["gl_jz"]=> string(1) " " ["gl_bdm"]=> string(1) "4" ["gl_bdmsm"]=> string(0) "" ["gl_kbc"]=> string(1) "0" ["gl_dmgx"]=> string(1) "0" ["pcbfzk_id"]=> string(0) "" ["pcbfzk"]=> string(1) "-" ["ljzt"]=> string(6) "在售" ["jyid"]=> string(1) "-" ["cat_id"]=> string(3) "100" ["wl_num"]=> string(4) "1149" ["admin_id"]=> string(1) "0" ["mpn_bm"]=> string(25) "golon_pmic_wyq_dc_dcqhkzq" ["ch_bm"]=> string(40) "DC-DC切换控制器,稳压器(直流）" ["lock_dm"]=> string(1) "1" ["is_use_cat_id"]=> string(1) "0" ["is_new_time"]=> string(1) "0" ["ms_c"]=> string(1) " " ["ytfw"]=> string(1) "-" ["hot_or_top"]=> string(1) "0" ["yqjtd_pintopin"]=> string(1) " " ["yqjtd_jianrong"]=> string(1) " " }
select a.wl_num,a.parent_id,GROUP_CONCAT(b.cat_name,' ',a.cat_name) as lb,a.action_name,a.rate,a.rate_hot,ROUND(sum(a.rate+a.rate_hot/100),4) as moq_rate from golon_ics_category a left join golon_ics_category b on a.parent_id=b.id where a.mpn_bm='golon_pmic_wyq_dc_dcqhkzq' array(1) { [0]=> array(7) { ["wl_num"]=> string(4) "1149" ["parent_id"]=> string(2) "80" ["lb"]=> string(58) "电源管理PMIC DC-DC切换控制器,稳压器(直流）" ["action_name"]=> string(3) "p20" ["rate"]=> string(5) "1.096" ["rate_hot"]=> string(2) "40" ["moq_rate"]=> string(6) "1.4960" } }
型号： SC2621STRT复制
状态： 在售 修改
品牌： SEMTECH/升特复制
封装：14-SO
外壳：14-SOIC（3.90mm 宽）
描述： IC REG CTRLR BUCK 14SOIC
SELECT * FROM `golon_pmic_wyq_dc_dcqhkzq` WHERE ( `images_mk` = '5879' ) LIMIT 1
输出类型：
功能：
拓扑：
输出数：
电压-电源(vcc/vdd)：
频率-开关：
占空比（最大）：
控制特性：
类别：
丝印：
料号：1149
量大可议价
参考价: array(5) { ["count"]=> string(1) "0" ["gys_id"]=> NULL ["zzsbh"]=> NULL ["price"]=> NULL ["show_price"]=> NULL }
起订量: 修改
包装量: 修改
个
咨询客服
SELECT count(a.gys_id) as c FROM golon_gys_file_new a LEFT JOIN golon_gys_brand b on a.gys_id=b.id WHERE ( a.zzsbh = null ) LIMIT 1
array(75) { ["id"]=> string(4) "5880" ["pdf_add"]=> string(0) "" ["pdf_dir"]=> string(0) "" ["images_sw"]=> string(1) " " ["images_mk"]=> string(70) "https://media.digikey.com/Renders/~~Pkg.Case%20or%20Series/14-SOIC.jpg" ["images"]=> string(80) "https://www.chenkeiot.com/Public/imagesmk/Renders/Pkg.Case_or_Series/14-SOIC.jpg" ["images_dir"]=> string(0) "" ["ljbh"]=> string(15) "SC2621IMLTRT-ND" ["zzsbh"]=> string(12) "SC2621IMLTRT" ["zddgs"]=> string(4) "3000" ["xysl"]=> string(1) "0" ["cfkc"]=> string(1) "0" ["dj"]=> string(8) "0.000000" ["gys_id"]=> string(1) " " ["num"]=> string(1) " " ["price_addtime"]=> string(1) "0" ["ms"]=> string(23) "IC REG CTRLR BUCK 16MLP" ["xl"]=> string(1) "-" ["zzs"]=> string(14) "SEMTECH/升特" ["zzs_new"]=> string(9) "未设定" ["zzs_old"]=> string(19) "Semtech Corporation" ["lm"]=> string(1) "-" ["tdxl"]=> string(9) "未设定" ["sclx"]=> string(18) "晶体管驱动器" ["gn"]=> string(6) "降压" ["scpz"]=> string(3) "正" ["tp"]=> string(6) "降压" ["scs"]=> string(1) "1" ["scjd"]=> string(1) "1" ["dydy_vcc_vdd"]=> string(8) "4V ~ 16V" ["pl_kg"]=> string(6) "500kHz" ["zkb_max"]=> string(3) "97%" ["tbzlq"]=> string(3) "是" ["sztb"]=> string(3) "无" ["cxjk"]=> string(1) "-" ["kztx"]=> string(21) "限流，相位控制" ["gzwd"]=> string(22) "-25°C ~ 85°C（TA）" ["azlx"]=> string(15) "表面贴装型" ["bz"]=> string(0) "" ["spq"]=> string(1) "-" ["moq"]=> string(2) "10" ["is_rohs"]=> string(1) "1" ["fz_wk"]=> string(23) "14-SOIC（3.90mm 宽）" ["gysqjfz"]=> string(5) "14-SO" ["djs"]=> string(1) "-" ["tag"]=> string(1) " " ["gl_zz"]=> string(6) "贴片" ["gl_pin"]=> string(2) "14" ["gl_dm"]=> string(1) "-" ["gl_dmtp"]=> string(0) "" ["symbol"]=> string(0) "" ["gl_vdd"]=> string(1) "-" ["gl_gnd"]=> string(1) "-" ["gl_jz"]=> string(1) " " ["gl_bdm"]=> string(1) "4" ["gl_bdmsm"]=> string(0) "" ["gl_kbc"]=> string(1) "0" ["gl_dmgx"]=> string(1) "0" ["pcbfzk_id"]=> string(0) "" ["pcbfzk"]=> string(1) "-" ["ljzt"]=> string(6) "在售" ["jyid"]=> string(1) "-" ["cat_id"]=> string(3) "100" ["wl_num"]=> string(4) "1149" ["admin_id"]=> string(1) "0" ["mpn_bm"]=> string(25) "golon_pmic_wyq_dc_dcqhkzq" ["ch_bm"]=> string(40) "DC-DC切换控制器,稳压器(直流）" ["lock_dm"]=> string(1) "1" ["is_use_cat_id"]=> string(1) "0" ["is_new_time"]=> string(1) "0" ["ms_c"]=> string(1) " " ["ytfw"]=> string(1) "-" ["hot_or_top"]=> string(1) "0" ["yqjtd_pintopin"]=> string(1) " " ["yqjtd_jianrong"]=> string(1) " " }
select a.wl_num,a.parent_id,GROUP_CONCAT(b.cat_name,' ',a.cat_name) as lb,a.action_name,a.rate,a.rate_hot,ROUND(sum(a.rate+a.rate_hot/100),4) as moq_rate from golon_ics_category a left join golon_ics_category b on a.parent_id=b.id where a.mpn_bm='golon_pmic_wyq_dc_dcqhkzq' array(1) { [0]=> array(7) { ["wl_num"]=> string(4) "1149" ["parent_id"]=> string(2) "80" ["lb"]=> string(58) "电源管理PMIC DC-DC切换控制器,稳压器(直流）" ["action_name"]=> string(3) "p20" ["rate"]=> string(5) "1.096" ["rate_hot"]=> string(2) "40" ["moq_rate"]=> string(6) "1.4960" } }
型号： SC2621IMLTRT复制
状态： 在售 修改
品牌： SEMTECH/升特复制
封装：14-SO
外壳：14-SOIC（3.90mm 宽）
描述： IC REG CTRLR BUCK 16MLP
SELECT * FROM `golon_pmic_wyq_dc_dcqhkzq` WHERE ( `images_mk` = '5880' ) LIMIT 1
输出类型：
功能：
拓扑：
输出数：
电压-电源(vcc/vdd)：
频率-开关：
占空比（最大）：
控制特性：
类别：
丝印：
料号：1149
量大可议价
参考价: array(5) { ["count"]=> string(1) "0" ["gys_id"]=> NULL ["zzsbh"]=> NULL ["price"]=> NULL ["show_price"]=> NULL }
起订量: 修改
包装量: 修改
个
咨询客服
SELECT count(a.gys_id) as c FROM golon_gys_file_new a LEFT JOIN golon_gys_brand b on a.gys_id=b.id WHERE ( a.zzsbh = null ) LIMIT 1
array(75) { ["id"]=> string(4) "5901" ["pdf_add"]=> string(114) "https://www.semtech.com/products/power-management/femtobuck-dc-dc-regulators-controllers/sc2602#download-resources" ["pdf_dir"]=> string(0) "" ["images_sw"]=> string(1) " " ["images_mk"]=> string(72) "https://media.digikey.com/Renders/~~Pkg.Case%20or%20Series/16%20SOIC.jpg" ["images"]=> string(80) "https://www.chenkeiot.com/Public/imagesmk/Renders/Pkg.Case_or_Series/16_SOIC.jpg" ["images_dir"]=> string(0) "" ["ljbh"]=> string(14) "SC2602LSTRT-ND" ["zzsbh"]=> string(11) "SC2602LSTRT" ["zddgs"]=> string(4) "2500" ["xysl"]=> string(1) "0" ["cfkc"]=> string(1) "0" ["dj"]=> string(8) "0.000000" ["gys_id"]=> string(1) " " ["num"]=> string(1) " " ["price_addtime"]=> string(1) "0" ["ms"]=> string(24) "IC REG CTRLR BUCK 14SOIC" ["xl"]=> string(1) "-" ["zzs"]=> string(14) "SEMTECH/升特" ["zzs_new"]=> string(9) "未设定" ["zzs_old"]=> string(19) "Semtech Corporation" ["lm"]=> string(1) "-" ["tdxl"]=> string(9) "未设定" ["sclx"]=> string(18) "晶体管驱动器" ["gn"]=> string(6) "降压" ["scpz"]=> string(3) "正" ["tp"]=> string(6) "降压" ["scs"]=> string(1) "1" ["scjd"]=> string(1) "1" ["dydy_vcc_vdd"]=> string(12) "4.2V ~ 12.6V" ["pl_kg"]=> string(6) "200kHz" ["zkb_max"]=> string(3) "95%" ["tbzlq"]=> string(3) "是" ["sztb"]=> string(3) "无" ["cxjk"]=> string(1) "-" ["kztx"]=> string(51) "使能，相位控制，电源良好，软启动，" ["gzwd"]=> string(22) "-40°C ~ 85°C（TA）" ["azlx"]=> string(15) "表面贴装型" ["bz"]=> string(0) "" ["spq"]=> string(1) "-" ["moq"]=> string(2) "10" ["is_rohs"]=> string(1) "1" ["fz_wk"]=> string(18) "16-SOIC(3.90mm宽)" ["gysqjfz"]=> string(5) "14-SO" ["djs"]=> string(1) "-" ["tag"]=> string(1) " " ["gl_zz"]=> string(6) "贴片" ["gl_pin"]=> string(2) "16" ["gl_dm"]=> string(1) "-" ["gl_dmtp"]=> string(0) "" ["symbol"]=> string(0) "" ["gl_vdd"]=> string(1) "1" ["gl_gnd"]=> string(4) "7 14" ["gl_jz"]=> string(1) " " ["gl_bdm"]=> string(1) "4" ["gl_bdmsm"]=> string(0) "" ["gl_kbc"]=> string(1) "0" ["gl_dmgx"]=> string(1) "0" ["pcbfzk_id"]=> string(0) "" ["pcbfzk"]=> string(1) "-" ["ljzt"]=> string(6) "在售" ["jyid"]=> string(1) "-" ["cat_id"]=> string(3) "100" ["wl_num"]=> string(4) "1149" ["admin_id"]=> string(1) "0" ["mpn_bm"]=> string(25) "golon_pmic_wyq_dc_dcqhkzq" ["ch_bm"]=> string(40) "DC-DC切换控制器,稳压器(直流）" ["lock_dm"]=> string(1) "1" ["is_use_cat_id"]=> string(1) "0" ["is_new_time"]=> string(1) "0" ["ms_c"]=> string(1) " " ["ytfw"]=> string(1) "-" ["hot_or_top"]=> string(1) "0" ["yqjtd_pintopin"]=> string(1) " " ["yqjtd_jianrong"]=> string(1) " " }
select a.wl_num,a.parent_id,GROUP_CONCAT(b.cat_name,' ',a.cat_name) as lb,a.action_name,a.rate,a.rate_hot,ROUND(sum(a.rate+a.rate_hot/100),4) as moq_rate from golon_ics_category a left join golon_ics_category b on a.parent_id=b.id where a.mpn_bm='golon_pmic_wyq_dc_dcqhkzq' array(1) { [0]=> array(7) { ["wl_num"]=> string(4) "1149" ["parent_id"]=> string(2) "80" ["lb"]=> string(58) "电源管理PMIC DC-DC切换控制器,稳压器(直流）" ["action_name"]=> string(3) "p20" ["rate"]=> string(5) "1.096" ["rate_hot"]=> string(2) "40" ["moq_rate"]=> string(6) "1.4960" } }
型号： SC2602LSTRT复制
状态： 在售 修改
品牌： SEMTECH/升特复制
封装：14-SO
外壳：16-SOIC(3.90mm宽)
描述： IC REG CTRLR BUCK 14SOIC
SELECT * FROM `golon_pmic_wyq_dc_dcqhkzq` WHERE ( `images_mk` = '5901' ) LIMIT 1
输出类型：
功能：
拓扑：
输出数：
电压-电源(vcc/vdd)：
频率-开关：
占空比（最大）：
控制特性：
类别：
丝印：
料号：1149
量大可议价
参考价: array(5) { ["count"]=> string(1) "0" ["gys_id"]=> NULL ["zzsbh"]=> NULL ["price"]=> NULL ["show_price"]=> NULL }
起订量: 修改
包装量: 修改
个
咨询客服
SELECT count(a.gys_id) as c FROM golon_gys_file_new a LEFT JOIN golon_gys_brand b on a.gys_id=b.id WHERE ( a.zzsbh = null ) LIMIT 1
array(75) { ["id"]=> string(4) "6721" ["pdf_add"]=> string(61) "http://www.semtech.com/apps/filedown/down.php?file=sc2602.pdf" ["pdf_dir"]=> string(0) "" ["images_sw"]=> string(1) " " ["images_mk"]=> string(70) "https://media.digikey.com/Renders/~~Pkg.Case%20or%20Series/14-SOIC.jpg" ["images"]=> string(80) "https://www.chenkeiot.com/Public/imagesmk/Renders/Pkg.Case_or_Series/14-SOIC.jpg" ["images_dir"]=> string(0) "" ["ljbh"]=> string(13) "SC2602STRT-ND" ["zzsbh"]=> string(10) "SC2602STRT" ["zddgs"]=> string(4) "2500" ["xysl"]=> string(1) "0" ["cfkc"]=> string(1) "0" ["dj"]=> string(8) "0.000000" ["gys_id"]=> string(1) " " ["num"]=> string(1) " " ["price_addtime"]=> string(1) "0" ["ms"]=> string(24) "IC REG CTRLR BUCK 14SOIC" ["xl"]=> string(1) "-" ["zzs"]=> string(14) "SEMTECH/升特" ["zzs_new"]=> string(9) "未设定" ["zzs_old"]=> string(19) "Semtech Corporation" ["lm"]=> string(1) "-" ["tdxl"]=> string(9) "未设定" ["sclx"]=> string(18) "晶体管驱动器" ["gn"]=> string(6) "降压" ["scpz"]=> string(3) "正" ["tp"]=> string(6) "降压" ["scs"]=> string(1) "1" ["scjd"]=> string(1) "1" ["dydy_vcc_vdd"]=> string(12) "4.2V ~ 12.6V" ["pl_kg"]=> string(6) "200kHz" ["zkb_max"]=> string(3) "95%" ["tbzlq"]=> string(3) "是" ["sztb"]=> string(3) "无" ["cxjk"]=> string(1) "-" ["kztx"]=> string(51) "使能，相位控制，电源良好，软启动，" ["gzwd"]=> string(22) "-40°C ~ 85°C（TA）" ["azlx"]=> string(15) "表面贴装型" ["bz"]=> string(0) "" ["spq"]=> string(1) "-" ["moq"]=> string(2) "10" ["is_rohs"]=> string(1) "1" ["fz_wk"]=> string(23) "14-SOIC（3.90mm 宽）" ["gysqjfz"]=> string(5) "14-SO" ["djs"]=> string(1) "-" ["tag"]=> string(1) " " ["gl_zz"]=> string(6) "贴片" ["gl_pin"]=> string(2) "14" ["gl_dm"]=> string(1) "-" ["gl_dmtp"]=> string(0) "" ["symbol"]=> string(0) "" ["gl_vdd"]=> string(1) "-" ["gl_gnd"]=> string(1) "-" ["gl_jz"]=> string(1) " " ["gl_bdm"]=> string(1) "4" ["gl_bdmsm"]=> string(0) "" ["gl_kbc"]=> string(1) "0" ["gl_dmgx"]=> string(1) "0" ["pcbfzk_id"]=> string(0) "" ["pcbfzk"]=> string(1) "-" ["ljzt"]=> string(6) "在售" ["jyid"]=> string(1) "-" ["cat_id"]=> string(3) "100" ["wl_num"]=> string(4) "1149" ["admin_id"]=> string(1) "0" ["mpn_bm"]=> string(25) "golon_pmic_wyq_dc_dcqhkzq" ["ch_bm"]=> string(40) "DC-DC切换控制器,稳压器(直流）" ["lock_dm"]=> string(1) "1" ["is_use_cat_id"]=> string(1) "0" ["is_new_time"]=> string(1) "0" ["ms_c"]=> string(1) " " ["ytfw"]=> string(1) "-" ["hot_or_top"]=> string(1) "0" ["yqjtd_pintopin"]=> string(1) " " ["yqjtd_jianrong"]=> string(1) " " }
select a.wl_num,a.parent_id,GROUP_CONCAT(b.cat_name,' ',a.cat_name) as lb,a.action_name,a.rate,a.rate_hot,ROUND(sum(a.rate+a.rate_hot/100),4) as moq_rate from golon_ics_category a left join golon_ics_category b on a.parent_id=b.id where a.mpn_bm='golon_pmic_wyq_dc_dcqhkzq' array(1) { [0]=> array(7) { ["wl_num"]=> string(4) "1149" ["parent_id"]=> string(2) "80" ["lb"]=> string(58) "电源管理PMIC DC-DC切换控制器,稳压器(直流）" ["action_name"]=> string(3) "p20" ["rate"]=> string(5) "1.096" ["rate_hot"]=> string(2) "40" ["moq_rate"]=> string(6) "1.4960" } }
型号： SC2602STRT复制
状态： 在售 修改
品牌： SEMTECH/升特复制
封装：14-SO
外壳：14-SOIC（3.90mm 宽）
描述： IC REG CTRLR BUCK 14SOIC
SELECT * FROM `golon_pmic_wyq_dc_dcqhkzq` WHERE ( `images_mk` = '6721' ) LIMIT 1
输出类型：
功能：
拓扑：
输出数：
电压-电源(vcc/vdd)：
频率-开关：
占空比（最大）：
控制特性：
类别：
丝印：
料号：1149
量大可议价
参考价: array(5) { ["count"]=> string(1) "0" ["gys_id"]=> NULL ["zzsbh"]=> NULL ["price"]=> NULL ["show_price"]=> NULL }
起订量: 修改
包装量: 修改
个
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SELECT count(a.gys_id) as c FROM golon_gys_file_new a LEFT JOIN golon_gys_brand b on a.gys_id=b.id WHERE ( a.zzsbh = null ) LIMIT 1

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