WMSIC Electronic Components

GOODWORK SMBJ58A

ModelSMBJ58A
PackageDO-214AA(SMB)
BrandGOODWORK
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
GOODWORK SMBJ58A
Type
GOODWORK
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GOODWORK
Electronic Component
SMBJ58A
Electronic Component
1
Package
DO-214AA(SMB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.177g
Electronic Component
1
Electronic Component
BM0265148225
Operating Temperature
55℃~+150℃
Voltage
93.6V
Current(Ir)
5uA
Voltage(VBR)
64.4V
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.

GOODWORK SMBJ58A 单向TVS管产品概述

SMBJ58A是固得沃克(GOODWORK)推出的一款单向瞬态抑制二极管(TVS),专为电子设备的静电放电(ESD)和浪涌过压防护设计,采用SMB(DO-214AA)表面贴装封装,兼具小体积、高可靠性和宽温适应性,适用于多领域电子系统的防护需求。

一、产品核心定位与应用场景

SMBJ58A作为单向TVS器件,核心作用是快速钳位电路中的瞬态过压,保护后端敏感元器件(如IC、传感器、电源模块等)免受静电放电、雷击浪涌、电源开关噪声等干扰损坏。其典型应用场景覆盖:

  1. 消费电子:智能手机、平板、笔记本电脑的充电接口、音频/视频接口防护;
  2. 工业控制:PLC、伺服驱动器的I/O接口、传感器信号链路防护;
  3. 通信设备:路由器、交换机、基站的以太网接口、射频链路防护;
  4. 车载电子:车载导航、行车记录仪的电源模块、CAN总线接口防护(适配宽温环境)。

二、关键电气参数详解

SMBJ58A的电气参数经过严格设计,匹配常见电压等级电路的防护需求:

  1. 极性与防护类型:单向导通,仅对电路中某一方向的过压进行防护(如电源正极到地的过压),适用于单向过压风险场景;
  2. 反向截止电压(Vrwm):58V,为器件正常工作时可承受的最大反向电压,低于此电压时器件处于截止状态,不影响电路正常工作;
  3. 钳位电压(Vclamp):93.6V(典型值),当电路出现瞬态过压时,器件快速击穿并将电压钳位在此范围内,保护后端器件不被击穿;
  4. 峰值脉冲功率与电流:600W峰值脉冲功率,对应6.4A峰值脉冲电流,可承受常见浪涌(如8/20μs浪涌波形)的能量冲击;
  5. 击穿电压(Vbr):64.4V(典型值),为器件反向击穿的基准电压,介于Vrwm与Vclamp之间,确保过压时快速响应;
  6. 反向漏电流(Ir):5μA(最大值,@Vrwm),正常工作时漏电流极小,不会影响电路功耗与信号完整性;
  7. 工作温度范围:-55℃~+150℃(结温Tj),宽温设计可适应极端环境(如工业高寒/高温、车载低温启动等场景)。

三、封装与可靠性优势

SMBJ58A采用SMB(DO-214AA)表面贴装封装,具备以下优势:

  1. 小体积高密度:封装尺寸(约2.9×3.8×1.8mm)紧凑,适合小型化电子设备(如智能手机、可穿戴设备)的高密度PCB设计;
  2. 焊接可靠性:符合IPC标准的引脚设计,支持回流焊、波峰焊工艺,焊接良率高,耐焊接冲击性能优异;
  3. 散热性能:封装采用陶瓷/塑料复合结构,脉冲功率 dissipation 能力强,可快速释放瞬态能量,避免器件过热损坏;
  4. 环保合规:无铅无卤设计,符合RoHS、REACH等环保指令要求,适配全球市场需求。

四、品牌与品质保障

固得沃克(GOODWORK)作为国内专业的防护器件厂商,SMBJ58A经过严格的品质管控:

  1. 标准合规:符合IEC 61000-4-2(ESD)、IEC 61000-4-5(浪涌)等国际防护标准,测试通过接触放电(±8kV)、空气放电(±15kV)及1.2/50μs浪涌(±2kV);
  2. 可靠性测试:通过高温存储(150℃/1000h)、温度循环(-55℃~+150℃/1000次)、湿度测试(85℃/85%RH/1000h)等可靠性验证,确保长期稳定工作;
  3. 批量一致性:采用自动化生产工艺,参数一致性好,适合工业级批量应用,供货周期稳定。

五、典型应用电路参考

以工业PLC数字输入接口为例,SMBJ58A的典型应用电路如下:
在PLC输入端口与地之间并联SMBJ58A(正极接端口,负极接地),当外部传感器产生浪涌过压(如静电放电、感应雷击)时,SMBJ58A快速击穿,将端口电压钳位至93.6V以内,保护PLC内部输入缓冲器免受损坏。此电路无需额外限流电阻(因TVS本身具有限流特性),简化了设计。

SMBJ58A凭借可靠的防护性能、宽温适应性和小体积封装,成为多领域电子设备过压防护的高性价比选择,可有效提升设备的抗干扰能力与使用寿命。

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