WMSIC Electronic Components

CJ SS32F

ModelSS32F
PackageSMAF
BrandCJ
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Date code within 2 years

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Technical data

Product details

19 specifications

Core information

Product name
CJ SS32F
Type
SMAF
Minimum package
3000

Technical parameters

Electronic Component
CJ
Electronic Component
SS32F
Electronic Component
1
Package
SMAF
Electronic Component
Schottky Diode
Electronic Component
0.06g
Electronic Component
1
Electronic Component
BM0264898166
Current
3A
Diode
1
Current(Ir)
500uA@20V
(Vf)
550mV@3A
Electronic Component
55℃~+125℃
Electronic Component
3000
Voltage Rating(Vr)
20V
Surge Current (Ifsm)
70A

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SS32F肖特基整流二极管产品概述

一、核心参数与性能亮点

SS32F作为一款低压肖特基整流二极管,核心参数针对性适配中小功率低压整流场景,关键性能如下:

  • 正向压降(Vf):550mV@3A,低正向压降设计可显著降低整流过程中的功率损耗(功率损耗=Vf×If),相比普通整流管减少约30%的发热,提升电源转换效率;
  • 直流反向耐压(Vr):20V,满足12V、24V以下低压系统的反向耐压需求,避免电路反向偏置时的击穿风险;
  • 持续整流电流(If):3A(直流),可稳定承载3A持续负载电流,覆盖多数中小功率电源的整流需求;
  • 反向漏电流(Ir):500μA@20V,低压下反向漏电流小,保证电路在反向状态下的稳定性,减少待机功耗;
  • 浪涌耐受能力(Ifsm):70A(非重复峰值),可应对电源启动、负载突变等场景下的瞬时大电流冲击,提升产品抗干扰性;
  • 宽温适应性:工作结温范围-55℃+125℃,覆盖工业控制、车载电子等严苛温度环境(如车载-40℃85℃、户外设备低温场景)。

二、品牌与封装信息

  • 品牌:CJ(江苏长电/长晶),国内功率半导体龙头厂商,拥有20余年器件制造经验,产品通过AEC-Q101(车载级)、ISO9001等认证,可靠性与一致性处于行业前列,广泛应用于消费电子、工业、车载领域;
  • 封装:SMAF(表面贴装封装),属于贴片式肖特基二极管的紧凑封装,典型尺寸为2.0×2.7mm,具备以下优势:
    1. 适配自动化贴片生产,节省PCB空间(比插件封装缩小约60%);
    2. 封装散热性能良好,可通过PCB铜箔快速导出热量;
    3. 引脚间距合理,焊接可靠性高,减少虚焊风险。

三、典型应用场景

SS32F凭借低功耗、宽温、小体积的特点,广泛应用于以下场景:

  1. 低压开关电源:如12V/24V输出的车载充电器、移动电源、适配器等,低Vf减少电源发热,提升续航与效率;
  2. LED驱动电源:适配小功率LED(灯带、台灯、显示屏背光),低损耗可延长LED使用寿命,避免电源过热;
  3. 消费电子终端:手机充电器、蓝牙耳机充电盒、智能手表底座等,小体积适配便携设备的高密度PCB设计;
  4. 工业与车载电子:工业传感器电源、车载中控系统、车灯驱动等,宽温范围应对环境温度波动,浪涌能力抵御车载电源启动冲击;
  5. 小型家电:加湿器、空气净化器、电动牙刷充电器等,稳定承载3A电流,保证设备长期可靠运行。

四、选型与使用注意事项

  1. 选型匹配:需确认应用场景的反向耐压(≤20V)、持续电流(≤3A),若需更高耐压(如30V)可选择同系列SS33F;
  2. 散热设计:持续工作在3A电流时,需保证PCB板的散热铜箔面积(建议≥10mm²),避免结温超过125℃;
  3. 焊接与存储:采用回流焊工艺(峰值温度≤260℃,时间≤30s),存储温度范围-55℃~150℃,避免受潮;
  4. 反向应用注意:肖特基二极管反向耐压较低,不可用于高压反向场景(如220V整流),需搭配稳压管或保险丝保护。

SS32F作为长电CJ系列的经典低压肖特基整流管,以高性价比、可靠性能成为中小功率低压整流的主流选型,适配多数民用与工业级电子系统的需求。

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