WMSIC Electronic Components

Jingdao Microelectronics SMAJ7.0CA

ModelSMAJ7.0CA
PackageSMA
BrandElectronic
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
Electronic SMAJ7.0CA
Type
Jingdao Microelectronics
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
SMAJ7.0CA
Electronic Component
1
Package
SMA
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.12g
Electronic Component
1
Electronic Component
BM0226520071
Voltage
12V
Current(Ir)
200uA
Voltage(VBR)
8.6V
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.

SMAJ7.0CA WM — 产品概述

一、产品简介

SMAJ7.0CA WM 是晶导微电子推出的一款双向瞬态电压抑制器(TVS 二极管),采用SMA封装,专为抑制雷击、浪涌和电气过压瞬变设计。其反向工作电压(Vrwm)为7.0V,具有快速响应、高能量吸收能力和良好的重复冲击耐受性,适用于对双向脉冲干扰有防护需求的电源与信号线路。

二、主要参数

  • 类型:TVS(二极管,双向)
  • 封装:SMA
  • 品牌:晶导微电子
  • 反向截止电压 Vrwm:7.0V
  • 击穿电压(Vbr):≈8.6V
  • 钳位电压(Vc):约12V(@10/1000µs)
  • 峰值脉冲功率 Ppp:400W(10/1000µs)
  • 峰值脉冲电流 Ipp:33.3A(10/1000µs)
  • 反向漏电流 Ir:≤200µA(常温,Vrwm 条件下)

三、关键特性

  • 双向结构:可同时抑制正负向瞬变,适用于交流或可反向的信号/电源线路。
  • 高能量吸收:在10/1000µs波形下可承受400W峰值能量,适合电源浪涌保护和雷击脉冲缓解。
  • 低钳位电压:在额定冲击下钳位电压约为12V,有利于保护后端敏感器件免受过电压损害。
  • 小封装、大功率:SMA封装便于自动贴片生产且兼顾散热能力与板上空间利用。

四、典型应用

  • 汽车电源总线和附件模块的瞬态保护(建议与熔丝或限流元件配合使用以应对更大能量)。
  • 工业控制电源、通讯接口、信号线防雷与浪涌保护。
  • 电源适配器、充电器、逆变器等对抗短时高能量脉冲的保护元件。

五、封装与安装建议

  • 建议元件尽量靠近被保护器件的接入端或线路入口处放置,缩短连接引线以降低感性耦合。
  • 在PCB上为SMA引脚预留适当热铜箔,便于热量扩散,必要时增加散热铜层与过孔。
  • 对于频繁脉冲或高能量场合,配合熔断器、限流电阻或多级TVS方案,提高系统可靠性。

六、可靠性与选型要点

  • 注意Vrwm(7V)与被保护电路的工作电压匹配,避免在正常工作时产生过多漏电或误触发。
  • 对于更高能量或特殊波形(如汽车负载掉电、冲击波形)应查看器件完整的冲击曲线与热应力数据,必要时选择更高Ppp或并联多只器件方案。
  • 选型时关注工作温度对漏电和钳位电压的影响,并参考晶导微电子提供的详细器件规格书与应用手册。

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Mixed BOM triage Typical RFQ workflow

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Obsolete-part review Typical RFQ workflow

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Small-batch request Typical RFQ workflow

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Repair batch evidence Typical RFQ workflow

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Model suffix clarification Typical RFQ workflow

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Export handoff Typical RFQ workflow

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Replenishment inquiry Typical RFQ workflow

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