WMSIC Electronic Components

MDD SMBJ60A

ModelSMBJ60A
PackageSMB(DO-214AA)
BrandMDD
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 Option 138074

Availability on request

Technical data

Product details

19 specifications

Core information

Product name
MDD SMBJ60A
Type
MDD
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MDD
Electronic Component
SMBJ60A
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.224g
Electronic Component
1
Electronic Component
BM0265866515
Operating Temperature
65℃~+150℃
Voltage
96.8V
Current(Ir)
1uA
Voltage(VBR)
73.7V
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.

SMBJ60A(MDD品牌)TVS产品概述

SMBJ60A是MDD品牌推出的单向瞬态抑制二极管(TVS),采用SMB(DO-214AA)小型表面贴装封装,专为低中压电路的瞬态过压保护设计,可有效抑制雷击、静电放电(ESD)、开关浪涌等瞬态干扰,广泛应用于工业控制、消费电子、汽车电子等领域。

一、产品基本属性

SMBJ60A属于单向TVS器件,核心定位为过压保护元件,通过反向击穿特性快速钳制瞬态过压,避免后端敏感电路(如MCU、传感器)损坏。其封装为SMB(DO-214AA),是标准化小型表面贴装封装,支持自动贴装工艺,PCB空间占用极小,适配高密度电路设计。

二、核心电气参数解析

SMBJ60A的关键参数直接决定保护能力,各参数意义如下:

  1. 反向截止电压(Vrwm=60V):正常工作时可承受的最大反向直流电压,此时器件截止,无明显导通电流,不影响电路正常运行;
  2. 击穿电压(Vbr=73.7V):反向过压达到此值时,TVS迅速击穿导通,将电压从过压值快速拉低;
  3. 钳位电压(Vc=96.8V):击穿导通后两端的最大钳制电压,需确保低于被保护器件的最大耐压;
  4. 峰值脉冲电流(Ipp=6.2A@10/1000μs):10/1000μs浪涌波形(上升10μs、半峰值1000μs)下的最大承受电流;
  5. 峰值脉冲功率(Ppp=600W@10/1000μs):对应波形下的最大浪涌吸收功率,体现强干扰应对能力;
  6. 反向漏电流(Ir=1μA@Vrwm):正常工作时漏电流极低,不增加电路额外功耗;
  7. 工作温度范围(-65℃~+150℃):宽温适应性,覆盖工业、汽车等极端环境。

三、封装与物理特性

SMB封装(DO-214AA)的SMBJ60A具有以下特性:

  • 尺寸小巧:典型尺寸约2.4mm×1.8mm×1.0mm,占用PCB空间极小;
  • 极性标识清晰:阴极通过色环或引脚形状区分,安装时需注意(阴极接被保护电路高压端,阳极接低压端/地);
  • 贴装兼容性:支持回流焊、波峰焊等自动化工艺,适合批量生产。

四、典型应用场景

SMBJ60A适配多种低中压电路,典型应用包括:

  1. 工业控制电路:PLC输入输出接口、传感器供电线路、电机驱动辅助电路,防护开关浪涌;
  2. 消费电子接口:笔记本、平板的充电端口、USB接口,抑制静电和电源过压;
  3. 汽车电子辅助电路:车载传感器(温度、压力)、小功率控制模块,适应汽车宽温环境;
  4. 通信设备电源:路由器、交换机的直流电源端口,防护雷击感应浪涌和EFT干扰。

五、关键性能优势

  1. 快速响应:ns级响应时间,远快于压敏电阻,瞬间抑制瞬态过压;
  2. 宽温可靠:-65℃~+150℃范围,覆盖工业、汽车等 harsh 场景;
  3. 低功耗:1μA漏电流,不影响电路正常工作电流,避免额外发热;
  4. 高防护能力:600W峰值功率,应对IEC 61000-4-5标准下2kV/2A浪涌;
  5. 小型化设计:SMB封装适配高密度PCB布局,降低系统复杂度。

六、使用注意事项

  1. 极性确认:单向TVS必须反向并联在被保护电路两端,接反会失效;
  2. 并联安装:不可串联,需与被保护电路并联才能有效钳压;
  3. 功率匹配:TVS峰值功率需大于实际电路最大浪涌功率,避免过应力;
  4. 温度降额:高温(>125℃)下按 datasheet 降额30%~50%;
  5. 焊接规范:焊接温度≤260℃,回流焊时间≤30s,避免损坏器件。

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