【应用】国产双向晶闸管BTA41-600BW助力UPS旁路设计,切换时间4ms以内
UPS不间断电源,主要用在给重要的设施备供电,避免断电带来损失,具有稳压、稳频、滤除谐波等特点,过去USP主要是数据机房设备供电,防止突然停电给造成数据丢失,UPS通常有两路市电输入,如下图1,主路输入整流器,另外一路是旁路输入,在使用过程中不可避免的要由于维护、过载、停电、或故障而导致的UPS需要自动或手动进行主旁路切换。
图1 UPS 结构框图
通常UPS主路切换旁路有以下两个工作场景:
1、主路故障,为了使后端负载能够持续工作,理论上是要做到0ms切换,但是实际做不到;
2、维修时,需要将主路切换到旁路,进行维修工作,此时不要求太短的切换时间;
而传统的主旁路切换单独使用的继电器来设计,但是考虑到继电器是机械式的开关,会有延迟时间,一般继电器需要做备压电路来快切换时间,但是成本上会比较高,本文重点介绍长晶科技的双向晶闸管BTA41-600BW,使用继电器和晶闸管并联的方案,来做UPS主旁路切换,可以做到4ms以下。首先当主路故障、或者需要维修时,主控DSP发出控制信号,当SCR晶闸管接受到驱动信号后,会快速导通,短时间内由主旁切换至旁路,然后在驱动继电器导通,来抗旁路大电流,因此该晶闸管主要是承担快速导通的作用,待继电器闭合后,晶闸管就会截止关断因此不需要在给晶闸管单独加散热器,整体下来成本会比较有优势。
图1 长晶双向 晶闸管BTA41-600BW 外形及封装尺寸图
晶闸管的选型需要注意以下几点:
1、VDRM/VRRM正反向重复峰值电压,选择耐压是输入电压的3倍,由于关断和打开瞬间有一个反向电动势产生需要留有余量;
2、晶闸管IGT(触发电流),晶闸管是电流型控制器件元件为了保证晶闸管完全导通,需要设计2-3倍余量触发电流值;
3、通态均方根电流IT(RMS),在阻性负载情况下,可选择晶闸管通态均方根电流IT(RMS)为2-3倍的常温条件下通态电流,
4、VDRM/VRRM正反向重复峰值电压,选择耐压是输入电压的3倍,由于关断和打开瞬间有一个反向电动势产生需要留有余量;
5、由于输入的电压是交流电是双向的,用单向可控硅就只能导通交流电的正半波或者负半波,而双向晶闸管能双向全波导通。
6、根据PCB的空间布局要求,选择合适封装的晶闸管;
国产长晶双向可控硅晶闸管BTA41-600BW,应用在3KW的USP主旁路切换设计具有以下几点优势:
1、BTA41-600BW是由NPN五层结构三端双向晶闸管,结温高、换向性能好、高dV/dt和dI/dt、绝缘电高达2500V(RMS);
2、VDRM/VRRM为600V,针对220V输入交流电具有2-3倍的电压余量;
3、通态均方根电流IT为40A,针对3KW功率的UPS,持续输出的负载电流为14V,具有3倍的电流余量;
4、晶闸管IGT(触发电流)为50mA,可设计触发电流为2-3倍,保证晶闸管完全导通;
5、封装为TO-3PK,插件封装,由于短时间导通,因此不需要单独加散热器,可省事横向空间;
6、BTA41-600BW为双向晶闸管,能够双向全波导通,适用于交流全波导通应用场景;
7、导通速度快,一般用在线式UPS是最稳定可靠的,可以做到1-4ms,保证USP的不间断工作给后端负载提供可靠持续的电流。
综上所述,长晶双向晶闸管BTA41-600BW可用于3KW不间断电源旁路设计,采用NPN五层结构三端双向晶闸管,结温高、换向性能好、高dV/dt和dI/dt、绝缘电压高达2500V@RMS,设计成本低,满足UPS主旁路快速切换的需求,切换时间低至ms级,实现真正的无缝切换。
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Littelfuse(力特)功率半导体和IC选型指南
描述- This selection guide offers a comprehensive look at the breadth and depth of the IXYS: A Littelfuse Technology power semiconductor and control IC portfolio. From milliwatt to gigawatt system solutions and everything in between, Littelfuse has got the devices that meet your needs.
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Orient product manual
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ORD213,OACPL314W1,ORD211,ORD217,ORT007YGL,ORL-F5BL-A1,OFOD817,OR063L,OASSR1510,OR-AQV258LH,OFOD814,ORTPD2040,ORTPT3016-H1,ORTPT3016-H2,ORD205,ORD206,ORTPD2024,OAPV2121S,ORD207,OR-6N137,OR50L,OR-6N136,OR-460A,OR-6N135,OAQH1223,ORT007RD,OR-6N139,OR-6N138,OHCPL053L,ORAQV258LH,ORM425A,OR-483W,OACPLW341,OR-352,OACPLW340,OR-351,ORAQV258P5,OR-357,OR-355,OR-354,OR481W1,OHCPL0531,OHCPL0530,OR-484W,ORTPD2060,OR0611,OR-2201,OR-2200,OTLP627M,ORT302X,ORTR-8402-F-A,OR-2202,OR060L,OMCT9001,OR3H7-4,OR-260L,OR-2611,OTLP626,ORTPD20120,OR-H11AA3,OR-H11AA2,OR-H11AA4,OR-H11AA1,OAQH3213,OTLP160G,OACPL60L,ORT009YG,OHCPL2530,OHCPL2531,ORL-F3PTB-14,OTLP621,OTLP620,OTLP160J,ORL-F3PDB,ORT016IRA,OR314,OR2611,OR-IR1206LI-CA2-CTR,OR-2630,OR2601,OR-0452,ORL-F3WC-A2,OR-0213,ORAQV258L,ORTPT3118-H1,OR-0453,OR-H61L,OR-2631,ORAQV258H,ORAQV258LHP5,OR-480W,ORTPT3018-H2,OR-IR1206ZA-CA-3T,OTLP2958,OTLP2955,OR-0223,OR064L,OTLP4597G,OTLP161J,OAQH3223,OTLP161G,OR-155E,OR-481W,ORTPD2090,OASSR-1520,OR60LW1,OR-0631,OACNTH61L,OR-0630,OR-D207,OR-D206,OR-D205,OR-MOC3041,OR-MOC3043,OR-MOC3042,ORM440A,ORT007YG,OFOD3120,OR-063L,ORT012IRA,OR-D213,OR-D211,OR357,OR-D217,OR355,OR354,OR-MOC3052,OR-MOC3051,OR352,OTLP163J,OR351,OR-MOC3053,OR-MOC304X,OR60LW,ORTR-20001-T,OAQY280S,OHCPLO53L,OR-MOC3061,OAQY217GS,OR-MOC3063,OTLP360J,OR-MOC3062,OR341,OR340,OTLP166J,OR-MOC305X,OR-2601,ORTR-9608-F,OFOD3150,OTLP250H,OTLP165J,OR-MOC306X,OR0600,ORB87,OR0601,OFOD617,OAQY282S,OAQV252G3A,OR-MOC3081,ORTPD2160D,OR-MOC3083,OR-MOC3082,OR-MOC307X,OTLP168J,OR-T308X,OTLP2303,OHCPL050L,ORTPT3121-H1,ORTR-8307,OHCPL0501,OTLP361J,OR-MOC308X,OHCPL0500,OR-0600,OR-0601,OAPV1121S,OR-T3082,OR-T3081,OR-T3083,ORTPD2015,OTLP172AM,OR-060L,OAQW214,OAQW216,OAQW210,OAQW212,ORL-F3HIRC-A2,OAQH1213,ORL-F3HIRC-A4,OR-0611,ORL-F5PDB,ORTR-9606-F,OTLP363J,OAQW217,OAQY284S,OR-M484,OR-M483,OR-AQV258P5,OACPL341W,ORPC814,ORPC815,ORPC816,O60L,ORPC817,OR-IR1206LI-CA1-CT,OR-M305X,OTLP560G,OTLP560J,OR-M3082,OR-M3083,ORPC824,ORPC825,ORTPT3125-H1,OR-M3084,ORPC827,OR357PVG,OR3223,OTLP3061S,OR-357PVG,ORL-IR908-7C-F,OR-M306X,OR-840A,OTLP3062A,OR-M3053,OR-M3054,OR-M3052,OTLP598AA,OR3213,OR-M3044,ORPC844,ORPC845,OACPL340W,ORL-PT928-6C-F,OR-M3064,ORPC847,OR-M3062,OR-M3063,OR-3H5-4,OR-H11L1,OR50LW1,OTLP561G,OTLP561J,OR-406A,OR-M304X,ORPC851,ORPC852,OR-10XX,OR5211,OR-PL2835IRC,OFODM121,OTLP187,ORM460A,OTLP185,OFODM124,OTLP182,OG3VM-351,OTLP181,OTLP180,ORTR-9909,OR-50LW,OR-314W,OR-M501,O63L,OR-3150,OR-339J,OR-MOC3010,OR-MOC3012,OR-MOC3011,OVOM1271,OR-860A,ORL-F3PTB,OR-481W1,OR-MOC3021,OG3VM-62F1,OR-MOC3023,OR-MOC3022,OR-316J,OR-425A,OFOD050L,OR-MOC301X,ORM601,OACPL341W1,ORT010IRC,OMCT62,OMCT61,ORT010IRA,OR-3H7-4,OR-MOC3032,OR-MOC3031,OR-MOC3033,OR-M308X,ORL-IR908-7C,OR-MOC302X,OASSR-4118,OR253X,OASSR-4119,OMOCD211M,OR-H11A4,OR-H11A3,OACPL- M483,OTLP224GA-2,OACPL- M484,OR-333J,OR-HIR1206ZA-CA-3T,OR1213,OACPLM61M,ORL-F5WC-A0,OASSR-4110,OASSR-4111,OR-H11A2,OR-H11A1,OR-M701,OG3VM-61,OR2530,OR2531,OTLP3023,OTLP3022,OTLP223GA,OTLP3021,OHCPL4504,OHCPL4503,OHCPL4502,OR-HIR1206LI-CA2-CTR,OMCT6,OR-483W1,OMOCD213M,ORM308X,OR806A,ORTPD212650,OR-3120,OR-PL3528IRC,ORL-F5HIRC-A2,ORL-F5HIRC-A4,OASSR-4128,ORL-F3YGC-A4,OR-AQV258LHP5,OTLP798GA,OTLP3043,OTLP3042,OTLP3041,OR-640A,OR-337J,260L,OASSR-4120,OASSR-5211,OR-T350,OR-2213,OTLP3064S,OTLP292-4,OTLP3073,OR-M3024,OR-M3022,OR-M3023,OR-2223,OR-M3042,008IRC,OR-M3043,OR450X,OG3VM-61VY2,263L,ORT114IRA-L,OG3VM-61VY1,OACPLW314,OR-341W1,OR-330J,OTLP3064,ORAQV258HP5,OTLP3063,OTLP3062,OTLP3061,OR-440A,ORL-F5GG-AA,OR-M302X,OR4504,ORT007IRA,OMOCD217M,OR-331J,OR4502,OR4503,OR26XX,OTLP3062S,OR3H7,ORL-F5YGC-AA,OR3H5,OR3H4,OR-332J,OACPL60LW,OR1223,OR3H5-4,OTLP3063S,ORL-IR928-6C,OTLP3083,OR-660A,OR-PT0805Z8-B1-3T,OTLP620-4,ORL-F5PTB,OTLP620-2,OR-2531,OR-2530,OR606A,ORTPD2151,ORM302X,ORTPD2155,ORT015IRA,OTLP781,OR480W1,OHCPL2611,OACPL60LW1,OR-PL2835PTC,OR-PL2835PTB,OTLP785,OR-C79,ORTPD2160,ORTPD2143,ORTPD2140,OR-1213,OR050L,OR-M460A,ORTPD212460,OHCPL2601,OR050X,OG3VM-601,OR0500,OR0501,OR-1223,OTLP171A,OAQY284EH,OTLP170G,ORT010SRK,OAQH2223,ORL-PT928-6B,ORL-PT928-6C,OACPL50L,OTLP170A,OTLP170J,ORTPD2165,OR-4502,OR-4503,OR-4504,OAQV212,OAQV214,OAQV210,ORTPD2151D,OR60L,OAQH2213,ORT008RD,OHCPL063L,OR-340W,OTLP555,OTLP553,OFODM8801,OR06XX,OA0H1213,ORM306X,ORL-F3RR-A1,ORL-F3RR-A4,OR-HIR0805Z8-CA-3T,OTLP3910,OASSR-3220,ORT008YGK,OR-M440A,ORT010IRC-L,ORAQV258LP5,OTLP171J,OR-AQV258HP5,OASSR1218,OR053X,ORM304X,ORT108YG,ORH11L1,OHCPL0453,OHCPL2631,OHCPL2630,OTLP523,OHCPL0452,OR-806A,ORM305X,OR825A,OTLP759,OR0530,OR0531,OR-IR0603LF-CA-4T,OR-C87,ORL-F5YY-A3,ORPC-847,OR-050L,ORPC-844,ORPC-845,OR247,OR245,OR244,OTLP385,OTLP261J,OTLP383,ORL-PT908-7C,ORPC-851,ORPC-852,OR840A,ORTR-9707,ORL-F5IRC-A4,OR-606A,OAQY214EH,ORL-F5IRC-A2,OTLP260J,OTLP224G-2,ORT912IRA,OASSR-1420,OTLP2409,OR-0530,OR-0531,OTLP240D,ORL-PT908-7C-F,OTLP240A,OAQY280EH,ORT008YG,OAQY216EH,OR-825A,OR425A,ORL-PT908-7B,OG3VM-62C1,OTLP626-4,OTLP172GAM,OTLP626-2,OR-AQV258L,OR-PL2835HIRC,OR316J,OR-4N26,OR-4N27,OR-4N28,OR-4N29,OR4N38,OR4N37,OR4N36,OR-4N25,OTLP351A,OTLP3783
Littelfuse NPI Summary
型号- 54100 SERIES,SZSMF4L SERIES,483A SERIES,SP3022-01ETG-NM,59001,IXYK85N,LS0502SCD33,501A,LS05006VPQ33 SERIES,527 SERIES,HWB12 SERIES,MIDI® 498 IL SERIES,SP0115-01UTG,WLTM,658 SERIES,PXXX0S3N-A,IXTY2P50PA,LQ05041QCS6,WLTC,483,SP0115-01ETG,RCM,CG8 SERIES,LQ05022QCS4,PXXX0S3N-A SERIES,LQ05041QCS6 SERIES,483 SERIES,MIDI® 498,59143,DCNLB SERIES,IXYN110N120C4H1,SZSMF4L,CG9,CG8,IXYN110N,LQ05041RCS6 SERIES,WSTC,QS8004XHX,59155,HWB12,59156,54140,LS0504EDD12,10EV SERIES,MEGA® FLEX,IXTY2P50PA SERIES,WSTM,828,407A,PICO® II 521,LQ05041RCS6,LS24062RQ23,WPB,440A,IXYH30N,WPC,59040,3425L,LS24062RQ23 SERIES,SMF4L-T1G SERIES,LS0504EDD12 SERIES,AQ27COM-02JTG,SC24COM-01ETG,RCM SERIES,PXXX0S3N SERIES,828 SERIES,441A,IXYH55N,DCNLM,TPSMC SERIES,DCNLJ,DCNLH,DCNLB,FDA117,PGB2 0201,LS12052BD33,LS2405IDD23 SERIES,PXXX0S3N,LQ05021QCS4 SERIES,IXYH40N,IXYK85N120C4H1,408 SERIES,656 SERIES,LQ05021RCS4 SERIES,QVXX12XHX SERIES,SZ3KASMC,SV8012DRP,EVCC-01,LS12052BD33 SERIES,EVCC,ZCASE® FHZ,MIDI® 498 SERIES,AQ24COM-01,AQ3130E-01ETG,150520 SERIES,10EV,MATE-12B,WPB-A,TPSMB SERIES,QVXX25XHX,54140 SERIES,SP4338,DCNHR,QS8004XHX SERIES,3425L SERIES,881,LTKAK2-L,885,656 & 658,IXYN85N,526,527,408,AQ24COM-02,LPF,QVXX25XHX SERIES,CG9 SERIES,IXYH55N120C4H1,MDMB,SV8012DRP SERIES,MIDI® FLEX,HWB6 SERIES,MDMA,WPC-A,57041 SERIES,422A,L4CA-A,656,SV8012D,PGB2 0201 SERIES,IXYH30N120C4H1,526 SERIES,DCNHR SERIES,WJC-A,Q6035NAH5RP SERIES,20EV,LQ05021RCS4,AQ3118E-01ETG,TPSMC300A,SPDN,MEGA® 298,SP0115-01UTG SEREIS,LTKAK2-L SERIES,MIDI® 498 IL,SZ3KASMC SERIES,SP4338-02WTG,HWB6,MITI-7L,DSR,IXYN85N120C4H1,SP0115-01ETG SERIES,MISM-7L,CPC3981Z SERIES,MEGA® SN,DCNLJ SERIES,K12,MIDI® 498IL,MEGA 298,437A,DSR SERIES,150520,CPC3981Z,LQ05022QCS4 SERIES,SPDN SERIES,TPSMD400CA-A,LPF SERIES,ZCASE® FHZ SERIES,Q6035NAH5RP,57041,438A,TTP,WJC,LQ05021QCS4,DCNLH SERIES,SC24COM-01ETG SERIES,SMF4L-T1G,SSA,DCNLM SERIES,L4CA,TPSMC,L4CL-A,TPSMB,QVXX12XHX,483A,L4CC,TPSMD,LS2405IDD23,SSA SERIES,TPSMD SERIES,PICO® II 521 SERIES,MXB12R600DPHFC,LS05006VPQ33,54100,L4CL,IXYH40N120C4H1
奥伦德(Orient)光电耦合器/外延芯片/传感器选型指南
目录- Company profile GaN LED Epi Wafer Chip Series Photocoupler Series Optical Package products
型号- ORPD2143,OR-2531,OR-2530,ORT008UYGK,ORPD2140,ORPT3061,ORT007YGL,ORT015IRA,OR-3H4,OR-W314,ORH-YG39A,ORH-Y39A,0RH-039A,OR-T3053,OR-T3052,OR-T3051,OR-3H7,OR-M3082,OR-M3083,ORPD2155,OR-M3084,ORPD2151,OR-247,OR-M460A,OR-244,PD212650,OR-6N137,ORPT3046,OR-6N136,OR-460A,OR-6N135,ORT007RD,ORPT3041,OR-6N139,008SRH,OR-6N138,OR-T3042,ORH-YG36G-TS,OR-T3041,OR-T3043,ORPD2165,ORPD212650,OR-M3053,ORPD2160,4N25,OR-M3054,OR-1223,4N26,4N27,OR-M3052,0RH-037B,0RH-037A,0RH-037C,ORH-YG37A,ORH-YG37B,ORH-YG37C,ORH-W49A I,ORTWB940N-12,OR-M3044,ORH-YG37G,0RH-037G,OR-2201,4N31,ORT008IRA,OR-4502,OR-2200,4N32,OR-4503,4N33,OR-4504,4N35,OR-M3064,4N36,4N37,OR-M3062,OR-2202,4N38,OR-M3063,ORTWB850N-14,ORPD20120,4N30,OR-H11L1,0RL-RYGF5(CKD)(E)XX,ORT812IRA,ORT008RD,R-4N25,4N28,4N29,OR-T3063,OR-406A,OR-W340,OR-T3062,OR-W341,OR-T3061,0RT114IRA,PD2138,OR-260L,OR-2611,OR-H11AA3,OR-H11AA4,PD2015,ORH-B39A,ORH-W47G I,007SRH,ORT009YG,OR-M501,ORT008YGK,ORH-R39A,ORT016IRA,PD2143,ORT512/812IRA,OR-M440A,ORT010IRC-L,OR-MOC3010,OR-MOC3012,OR-MOC3011,PD2140,ORT0811B,ORT108UYG,ORH-YG36G,OR-2630,OR-0452,OR-0453,OR-2631,ORPD2128,ORH-R37C |,ORT108YG,ORH-Y37G,ORH-Y37A,ORH-Y37B,OR-MOC3021,ORH-Y37C,OR-MOC3023,OR-MOC3022,OR-425A,ORT010IRC,PD2128,ORT010IRA,OR-0223,ORPD2015,ORPD2138,ORT007SO,OR-MOC3032,OR-MOC3031,OR-T3023,OR-MOC3033,OR-T3022,OR-T3021,ORPC-847,OR-3223,OR-050L,OR-H11A4,ORH-R36G,OR-H11A3,OR-0631,ORPC-844,ORPC-845,OR-0630,ORT0714,ORH-B36G-TS,OR-D207,ORH-G37B,OR-D206,ORH-G37A,OR-D205,OR-MOC3041,OR-MOC3043,OR-MOC3042,ORH-B35A,ORH-G36G,ORPC-851,ORT007YG,ORT007HY,OR-H11A2,OR-H11A1,OR-606A,OR-M701,OR-063L,ORPD212460,ORT012IRA,ORTWB850-12/14/20/28,OR-D213,ORT814IRA,OR-D211,OR-D217,ORH-R35A,OR-MOC3052,0RT112IRA,OR-MOC3051,ORT007SRH,OR-MOC3053,ORH-G35A,ORT0912B,ORT109IRC,ORT912IRA,0RT114IRA-L,ORT0912G,OR-50L,ORT1141RA-L/1 MIRA,ORT008HO,ORT008URV,OR-0530,OR-0531,PD2155,OR-MOC3061,ORH-G36G-TS,ORH-G39A,OR-MOC3063,OR-MOC3062,ORH-B37C,ORH-B37B,ORT008HY,PD2151,ORT008USRK,ORH-B37G,ORT008YG,6N137,ORH-VG35A,6N136,ORH-R37G,6N139,OR-M601,6N138,OR-2601,6N135,PD2165,ORH-R37A,ORH-R37B,PD20120,ORT509IRA,ORH-G37C,PD2160,OR-640A,ORT512IRA,ORH-G37G,OR-660AOR-0223,ORH-B36G,OR-4N26,OR-4N27,OR-4N28,ORH-W45A,ORT09AB,OR-MOC3081,PD212460,OR-MOC3083,OR-MOC3082,ORH-B37A |,ORH-W47C I,0RL-RGF5(C)(D)(E)XX,OR-1009,OR-M3024,OR-M3022,OR-1008,OR-M3023,OR-625A,0R-H11AA1,OR-2223,ORPC-814,0R-H11AA2,ORPC-815,OR-1010,ORPC-816,ORPC-817,OR-4N37,OR-M3042,008IRC,OR-4N38,OR-M3043,OR-1014,OR-1015,OR-4N35,OR-4N36,ORH-V35A,ORT810IRA,OR-440A,OR-0600,OR-1018,OR-0601,OR-1019,OR-T3082,OR-T3081,OR-T3083,ORH-R36G-TS,ORPC-825,ORT007IRA,OR-060L,ORPC-824,ORTWB940-12/14/20/28,ORH-W47B,OR-1020,ORT008SRH,OR-O531,OR-0611,OR-PL3006W-03,OR-PL3006W-01,OR-PL3006W-02,OR-0500,ORT816IRA,0RL-RGBF5(C)(D)(E)XX,ORH-W46G,ORT09AG,OR-660A,ORT012/112/912IRA,OR-0501,R-M440A
BTA41 3Q TRIACs TO-3PK Plastic-Encapsulate Thyristors
型号- BTA41,BTA41-800W,BTA41-600W,BTA41-800CW,BTA41-600BW,BTA41-600CW,BTA41-800BW
CT401L 4Q TRIACs SOT-23-3LK Plastic-Encapsulate Thyristors
型号- CT401L,CT401L-600T,CT401L-600S,CT401L-800S,CT401L-800T
BTA20 3Q TRIACs TO-220AK Plastic-Encapsulate Thyristors
型号- BTA20-600W,BTA20,BTA20-600CW,BTA20-600BW,BTA20-800BW,BTA20-800CW,BTA20-800W
BTA04 3Q TRIACs TO-220AK Plastic-Encapsulate Thyristors
型号- BTA04-800TW,BTA04-600W,BTA04-800W,BTA04-800CW,BTA04-800SW,BTA04-600CW,BTA04-600SW,BTA04,BTA04-600TW
BTA26 3Q TRIACs TO-3PK Plastic-Encapsulate Thyristors
型号- BTA26-800CW,BTA26-800BW,BTA26-600CW,BTA26-600BW,BTA26-800W,BTA26,BTA26-600W
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可烧录IC封装SOP/MSOP/SSOP/TSOP/TSSOP/PLCC/QFP/QFN/MLP/MLF/BGA/CSP/SOT/DFN;IC包装Tray/Tube/Tape;IC厂商不限,交期1-3天。支持IC测试(FT/SLT),管装、托盘装、卷带装包装转换,IC打印标记加工。
最小起订量: 1pcs 提交需求>
可定制单位/双位/三位/四位LED数码管的尺寸/位数/发光颜色等性能参数,每段亮度0.8~30mcd,主波长470~640nm,电压2~10.2V。
最小起订量: 1000 提交需求>
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