WMSIC Electronic Components

ST SMAJ130CA-TR SMAJ130CA

ModelSMAJ130CA-TR
PackageSMA(DO-214AC)
BrandST
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

20 specifications

Core information

Product name
ST(STMicroelectronics) SMAJ130CA-TR
Type
ST
Unit
Electronic Component
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ST(STMicroelectronics)
Electronic Component
SMAJ130CA-TR
Electronic Component
1
Package
SMA(DO-214AC)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.093g
Electronic Component
1
Electronic Component
BM0262573966
Operating Temperature
55℃~+150℃
Voltage
265V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;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.

SMAJ130CA-TR 产品概述

一、产品简介

SMAJ130CA-TR 是意法半导体(ST)提供的一款双向瞬态电压抑制器(TVS),封装为 SMA(DO-214AC),并以卷盘(-TR)形式供货,便于自动贴片组装。器件专为快速吸收静电放电(ESD)和电源/信号线上短时浪涌而设计,能在瞬态过电压发生时将电压钳位在安全范围内,保护下游电路免受损坏。

二、主要电气参数

  • 极性:双向(对正负瞬态对称钳位)
  • 反向截止电压 Vrwm:130 V(稳态工作电压)
  • 击穿电压 Vbr:约 144 V
  • 钳位电压 Vcl:约 265 V(在峰值脉冲条件下)
  • 峰值脉冲电流 Ipp:9 A(8/20 µs 波形)
  • 峰值脉冲功率 Ppp:400 W
  • 反向漏电流 Ir:≤ 1 µA(在 Vrwm 条件下)
  • 工作温度范围:-55 ℃ 至 +150 ℃
  • 符合保护标准:IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)、IEC 61000-4-5(浪涌)

三、工作原理与极性

作为双向 TVS,SMAJ130CA 在正常工作时表现为高阻抗,漏电小;当线路出现超过器件击穿电压的正负瞬态时,器件进入雪崩导通状态,迅速导通并将瞬态能量钳位到指定钳位电压,从而保护被保护设备。双向结构适合交流或互换极性的线路防护,安装时无需考虑极性方向。

四、封装与装配

SMA(DO-214AC)封装具有良好的散热能力和较高脉冲承受能力,适合中等功率浪涌保护应用。型号后缀 -TR 表示以卷盘包装供货,兼容自动贴片与回流焊工艺,便于批量制造。为保证焊接质量,应参照厂家回流曲线及焊膏规范。

五、典型应用场景

  • 工业控制电源总线与中高压数据/信号接口保护
  • 通信设备的端口和电源浪涌保护
  • 开关电源与逆变器的输入/输出浪涌抑制
  • 配电与远程供电系统中需要对瞬态高压进行钳位的场合

(注:由于 Vrwm=130 V,适用于稳态电压低于或等于此值的线路,选型时确保正常工作电压低于器件额定 Vrwm,并考虑电压裕量。)

六、设计与布局建议

  • 将 TVS 器件尽量靠近需要保护的端口或连接器放置,缩短走线长度以降低寄生电感。
  • 在高能量冲击情况下,配合低感抗的接地平面以便快速散流与热量扩散。
  • 核算保护对象可承受的最大钳位电压,确保 Vcl(≈265 V)不会超过被保护电路的耐压极限。
  • 对于重复浪涌场景,应参考厂家曲线进行热和能量余量评估,必要时并联或选择功率更高的方案。

七、可靠性与环境指标

器件工作温度范围宽(-55 ℃ 至 +150 ℃),适合恶劣环境下长期使用。符合 IEC 61000 系列浪涌/静电/快速瞬变测试要求,能为工业级和通信级设备提供稳健的瞬态保护。实际应用中还应关注PCB散热、重复冲击下的老化与热循环可靠性。

总结:SMAJ130CA-TR 是一款适用于中高工作电压线路的双向 TVS,具备良好的脉冲能量吸收能力与工业级环境适应性,适合用于需要应对 ESD、EFT 与浪涌冲击的保护场合。选型时应综合考虑工作电压、钳位电压以及被保护设备的耐压和能量承受能力。

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