WMSIC Electronic Components

Brightking SJD12A28L01

ModelSJD12A28L01
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SJD12A28L01
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SJD12A28L01
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
BM0259733023
Voltage
45.4V
Electronic Component
IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
31.1V

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

SJD12A28L01 ESD二极管产品概述

一、产品简介

SJD12A28L01 为 Brightking(台湾君耀)推出的一款单向ESD保护二极管,封装为SOD-123S,型号面向需要高可靠瞬态抑制的小型化应用。器件设计用于在瞬态过压时快速钳位并将冲击能量导入地线,从而保护下游敏感器件和接口电路。

二、主要特性

  • 单向极性设计,针对正向瞬态电压进行低阻抗钳位;
  • 反向截止电压(Vrwm):28V,适合中高压信号总线保护;
  • 钳位电压(典型):45.4V @ 1A 峰值条件下提供有效限压;
  • 峰值脉冲电流(Ipp):4.4A(8/20μs波形);峰值脉冲功率(Ppp):1kW @ 8/20μs;
  • 击穿电压(Vbr):31.1V;反向漏电流(Ir):典型1 μA,利于低泄漏要求场合;
  • 单路保护,符合 IEC 61000-4-2 ESD 防护规范。

三、电气参数概览

该器件在8/20μs浪涌条件下能承受高达1kW的瞬时功率并提供约4.4A的峰值浪涌电流;工作时保持较低的反向漏电(1 μA),在正常工作电压下对信号影响小。击穿和钳位特性保证在ESD事件发生时迅速进入导通并将过压限制在设备可承受范围内。

四、典型应用场景

适用于USB、串行数据接口、网络通信端口、SIM卡/SD卡接口、移动与消费电子、工控信号线、显示接口等对ESD防护有严格要求的场合。特别适合空间受限且需表面贴装的电路板设计。

五、封装与安装建议

SOD-123S 小型封装便于高密度贴装。推荐将器件尽量靠近被保护的输入/输出接口引脚放置,走线最短以减小寄生感抗。建议在GND侧使用完整地平面或多点焊盘,并在高能量应用中考虑适量散热铜面积或热沉布局以提升能量耗散能力。

六、使用注意事项

  • 器件为单向TVS,适用于单极性信号;如用于双向信号请选用双向型号;
  • 高频或高速信号路径应评估器件对信号完整性的影响并做必要布局优化;
  • 虽能承受IEC 61000-4-2类ESD脉冲,频繁或超规格冲击会降低器件寿命,应配合良好接地与线路保护策略使用;
  • 订购和替换时请确认封装(SOD-123S)和热/电参数匹配。

SJD12A28L01以其低漏电、快速响应和小型封装,适合对体积与可靠性有较高要求的接口保护设计。

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