WMSIC Electronic Components

Brightking SJD12A22L01

ModelSJD12A22L01
PackageSOD-123S
BrandBrightking
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SJD12A22L01
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SJD12A22L01
Electronic Component
1
Package
SOD-123S
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.038g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0264590393
Operating Temperature
55℃~+150℃
Voltage
35.5V
Electronic Component
IEC 61000-4-2
Current(Ir)
1uA

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

Brightking SJD12A22L01 单向ESD保护器件产品概述

Brightking(台湾君耀)推出的SJD12A22L01是一款专为低压电路设计的单向ESD静电放电保护器件,采用SOD-123S小型封装,具备低漏电流、高脉冲耐受能力及宽温适应性,可有效防护电子电路免受静电冲击损坏,是消费电子、汽车电子等领域的高性价比防护方案。

一、产品核心定位与应用场景

SJD12A22L01聚焦低压系统的静电防护需求,主要覆盖以下场景:

  • 消费电子:手机、平板、智能穿戴的USB接口、耳机孔、按键电路;
  • 汽车电子:车载传感器(温度/压力传感器)、中控面板接口、车载通信端口;
  • 工业控制:PLC输入输出模块、小型传感器节点、工业通信接口;
  • 通信设备:路由器、交换机的RJ45端口、无线模块接口。

其单向防护特性适配单向信号传输或电源线路,避免反向干扰影响正常电路工作。

二、关键性能参数解析

SJD12A22L01的核心参数围绕“低损耗+强防护”设计,关键指标如下:

  1. 电压耐受能力:

    • 反向截止电压(Vrwm)22V:适配12V、24V等低压系统,正常工作时器件截止,不影响电路信号;
    • 击穿电压(Vbr)24.4V:静电脉冲到来时快速击穿导通,泄放静电电荷;
    • 钳位电压(Vc)35.5V:脉冲峰值时将器件两端电压限制在35.5V以内,远低于后端敏感器件(如MCU、传感器)的耐压阈值。
  2. 脉冲耐受能力:

    • 峰值脉冲电流(Ipp)5.7A(8/20μs波形):可承受IEC 61000-4-2标准中±8kV接触放电对应的脉冲电流;
    • 峰值脉冲功率(Ppp)1kW(8/20μs波形):满足典型ESD脉冲的能量耐受需求。
  3. 低损耗特性:
    反向电流(Ir)仅1μA(@Vrwm=22V),正常工作时漏电流极小,不增加电路功耗或导致信号失真。

三、封装与环境适应性

  1. 封装规格:采用SOD-123S小型表面贴装封装,尺寸约1.6mm×0.8mm×0.7mm,与0805封装元件兼容,适合高密度PCB布局,节省板级空间。

  2. 宽温工作范围:支持-55℃~+150℃,覆盖汽车级(AEC-Q101)及工业级环境要求,可在极端温度场景(如车载高温、工业低温)下稳定工作。

  3. 标准 compliance:符合IEC 61000-4-2静电放电标准,可通过接触放电(±8kV±15kV)及空气放电(±15kV±25kV)测试,满足电子设备EMC防护要求。

四、选型与设计注意事项

  1. 极性匹配:单向防护需注意信号/电源流向,反向截止电压端(阴极)接信号输入/电源端,阳极接地点,避免反向导通干扰电路。

  2. 电压匹配:反向截止电压(22V)需高于系统最大工作电压(如12V系统余量充足);钳位电压需低于后端器件最大耐压(若后端器件耐压较低,可搭配一级防护器件)。

  3. 布局建议:尽量靠近被防护器件端口布局,缩短引线长度(减少寄生电感影响);多端口防护需为每个端口单独并联器件,避免串扰。

五、总结

Brightking SJD12A22L01凭借小型封装、低漏电流、宽温适应性及强ESD防护能力,成为低压电子系统的可靠防护方案。其适配多场景需求,可有效提升电路静电可靠性,降低静电损坏导致的售后成本,是电子设计中值得优先考虑的ESD防护器件之一。

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