WMSIC Electronic Components

CJ SMAJ150CA

ModelSMAJ150CA
PackageSMAG
BrandCJ
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
CJ SMAJ150CA
Type
CJ
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
SMAJ150CA
Electronic Component
1
Package
SMAG
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.082g
Electronic Component
1
Electronic Component
BM0233613185
Voltage
243V
Current(Ir)
5uA
Voltage(VBR)
167V
Electronic Component
Electronic Component
Electronic Component
5000

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

SMAJ150CA 产品概述

一、产品简介

SMAJ150CA 是 CJ(江苏长电/长晶)推出的一款双向瞬态抑制二极管(TVS),用于对中高电压线路的浪涌和瞬态过电压进行保护。器件采用 SMAG(SMA 封装)表面贴装形式,体积小、响应快、安装方便,适用于需要稳健防护又要求占板面积小的场合。

二、主要电气参数

  • 极性:双向(双向导通,对正负极瞬态均能抑制)
  • 反向截止电压 Vrwm:150 V(工作电压线为 150V)
  • 击穿电压 Vbr:167 V(典型或公差范围请参考厂家数据表)
  • 钳位电压 Vc:243 V(在指定冲击条件下的典型钳位值,测量条件请以数据表为准)
  • 峰值脉冲电流 Ipp:1.6 A(器件能承受的单次峰值脉冲电流)
  • 峰值脉冲功率 Ppp:400 W(按制造商规定的测试波形和条件)
  • 反向电流 Ir:5 μA(在 Vrwm 条件下的典型漏电流)
  • 类型:TVS(瞬态电压抑制器)

三、封装与机械特性

SMA(SMAG)封装为常见的小型表贴外形,适合自动贴装和回流焊工艺。封装具有良好的热散能力和机械强度,便于在有限空间内实现有效的瞬态能量耗散。焊盘设计应参考厂方推荐样式以保证散热与可靠焊接。

四、典型应用场景

  • 开关电源输入端的浪涌保护与抑制瞬态尖峰
  • 工业控制与自动化设备的电源与信号线路防护
  • 通信设备、基站与光纤收发器的过电压防护
  • 太阳能逆变器、蓄电池管理与中高压直流系统的瞬态抑制
  • 电机驱动与电源模块的瞬态能量吸收

五、设计与使用建议

  1. 安装位置应尽量靠近被保护的接口或元件,缩短寄生电感以获得更好抑制效果。
  2. 对于可能出现的大能量浪涌,建议与熔断器、限流电阻或线路保护器配合使用,以防止器件自身过热或损坏。
  3. 工作电压应选择比实际最大工作电压有裕量的型号;Vrwm=150V 适合接近 150V 的直流或等效环境,长期使用注意温度对漏电流和击穿电压的影响。
  4. 钳位电压 243V 为典型值,设计时需确认被保护设备能承受该钳位下的剩余电压。
  5. 双向器件在交流或可能正负翻转的电路中使用更为合适;若仅在单向 DC 环境可考虑单向 TVS 以获得更低的钳位电压。

六、可靠性与测试要点

  • 关键测试包括 8/20 μs 或 10/1000 μs 浪涌波形下的钳位电压与吸收能量能力;请参考制造商提供的试验条件和曲线。
  • 在高温或高湿环境中需关注漏电流增长与长期功率循环老化,必要时做加速寿命测试。
  • 装配后应进行焊接热循环与机械振动测试,确保焊点可靠。

七、选型提醒

SMAJ150CA 适合对 150V 等级线路需小体积、快速响应保护的场合。选型时除电气参数外,还应核实厂方的测试条件、最大重复脉冲能力及环境温度范围。如需更高浪涌电流或更低钳位电压,可考虑更大功率或不同击穿等级的 TVS 型号;若需单向保护,请选择对应的单向封装型号。

如需官方数据表、波形曲线或封装图纸,可向 CJ(江苏长电/长晶)或供应商索取完整技术资料以便最终设计验证。

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