WMSIC Electronic Components

Brightking SJD12A30L01

ModelSJD12A30L01
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 SJD12A30L01
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SJD12A30L01
Electronic Component
1
Package
SOD-123S
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.038g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0264881666
Voltage
48.4V
Electronic Component
IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
33.3V
Electronic Component
Electronic Component

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

SJD12A30L01 静电放电保护器件产品概述

SJD12A30L01是台湾君耀(Brightking)推出的单通道静电放电(ESD)保护器件,采用SOD-123S表面贴装小封装,针对3.3V/5V等低电压系统的静电防护需求优化,符合IEC 61000-4-2国际静电抗扰度标准,可有效抑制人体静电(HBM)、机器模型(MM)等静电放电对后端电路的干扰与损坏。

一、核心电气参数解析

该器件的关键参数围绕静电脉冲防护能力与系统兼容性设计,具体如下:

  1. 反向截止电压(Vrwm):30V
    指器件正常工作时可承受的最大反向偏置电压,适配3.3V、5V、12V等主流低电压系统(如消费电子、通信设备),余量充足,避免器件在系统正常工作时误导通。
  2. 钳位电压:48.4V(@8/20μs脉冲)
    当遭遇8/20μs(模拟人体静电放电波形)脉冲时,器件可将后端电路的最高电压限制在48.4V以内,远低于多数半导体器件的击穿阈值(如CMOS电路一般耐压50V以上),有效保护敏感电路。
  3. 峰值脉冲电流(Ipp):4.2A@8/20μs
    可承受的最大瞬时脉冲电流,峰值脉冲功率达1kW,满足一般消费电子、通信设备的静电防护需求(如USB接口、耳机接口的典型静电放电电流在2A以内)。
  4. 击穿电压:33.3V
    比Vrwm高3.3V,保证器件在正常工作电压下处于截止状态,仅当电压超过33.3V(静电脉冲触发)时才导通泄放电流。
  5. 反向漏电流(Ir):1μA
    漏电流极小,不影响低功耗系统(如电池供电的智能手机、可穿戴设备)的待机功耗,避免额外电能损耗。

二、封装与物理特性

SJD12A30L01采用SOD-123S封装,具有以下优势:

  • 小尺寸:典型尺寸约1.6mm×0.8mm×0.6mm,适合高密度PCB布局(如智能手机主板、可穿戴设备电路板);
  • 表面贴装:支持回流焊、波峰焊等自动化焊接工艺,适配批量生产;
  • 环保合规:符合RoHS无铅无卤标准,满足全球电子设备的环保要求。

三、可靠性与合规性

  1. IEC 61000-4-2认证:通过国际通用的静电放电抗扰度测试,可防护接触放电(±8kV/±15kV) 与空气放电(±15kV/±30kV) ,覆盖大多数实际应用场景;
  2. 耐脉冲能力:可承受数千次重复静电脉冲而性能无明显衰减,可靠性符合君耀器件的行业标准;
  3. 温度范围:支持-55℃~+150℃工作温度,适配工业级与消费级应用环境。

四、典型应用场景

该器件适用于需要小封装、低功耗静电防护的场景,具体包括:

  1. 消费电子:智能手机、平板电脑的USB Type-C接口、耳机接口、触摸按键电路防护;
  2. 通信设备:路由器、交换机的以太网端口、射频(RF)接口静电防护;
  3. 可穿戴设备:智能手表、手环的充电接口、心率传感器接口防护;
  4. 工业控制:PLC(可编程逻辑控制器)的数字输入/输出端口、传感器接口防护;
  5. 车载电子:车载USB充电口、中控屏触摸按键的低电压静电防护(适配12V车载系统)。

五、选型与使用注意事项

  1. 电压匹配:系统工作时反向偏置电压需≤30V,若系统电压高于30V,需选择更高Vrwm的器件(如SJD12A40L01);
  2. 安装方式:需并联在被保护电路与地之间,且尽量靠近接口端(减少引线电感,提升防护效果);
  3. 脉冲容量:若系统可能遭遇大于4.2A的脉冲(如工业级高静电环境),建议并联2个器件以提升总脉冲容量;
  4. 焊接规范:回流焊温度需符合君耀datasheet要求(如峰值温度≤260℃,时间≤30s),避免高温损坏器件。

综上,SJD12A30L01以小封装、低漏电流、强脉冲防护能力为核心优势,是3.3V/5V系统静电防护的高性价比选择,广泛适配消费电子、通信、工业等领域的需求。

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