WMSIC Electronic Components

TWGMC SMAJ5.0CA Bidirectional TVS Diode SMAJ5.0CA

ModelSMAJ5.0CA
PackageDO-214AC
BrandTWGMC
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
TWGMC SMAJ5.0CA
Type
TWGMC
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TWGMC
Electronic Component
SMAJ5.0CA
Electronic Component
1
Package
DO-214AC
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.098g
Electronic Component
1
Electronic Component
BM0265826645
Operating Temperature
65℃~+150℃
Voltage
9.2V
Current(Ir)
800uA
Voltage(VBR)
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.

SMAJ5.0CA 瞬态抑制二极管(TVS)产品概述

一、产品定位与核心价值

SMAJ5.0CA是台湾迪嘉(TWGMC)推出的双向瞬态抑制二极管(TVS),属于SMAJ系列小功率防护器件,核心定位为紧凑空间下的高可靠过压保护方案。其专为需要小体积、宽温适应性及快速响应的电子设备设计,可有效抑制静电放电(ESD)、电快速瞬变脉冲群(EFT)、电源浪涌等瞬态过压,避免后级敏感电路(如MCU、传感器、射频模块)因过压损坏。

二、关键参数详细解析

SMAJ5.0CA的核心参数围绕“防护有效性”与“电路适配性”设计,关键指标及实际意义如下:

  1. 防护极性:双向型(无正负方向区分),可同时抑制正、负脉冲过压,简化电路设计(无需区分极性贴装),适合对双向防护有需求的接口电路;
  2. 反向截止电压(Vrwm):5V,即设备正常工作时TVS处于截止状态的最大电压,确保在工作电压范围内不干扰电路(如5V供电系统可直接匹配);
  3. 钳位电压(Vc):典型值9.2V,是瞬态脉冲时TVS将电压钳位的目标值——该值越低,对后级元件的保护越直接(可有效避免敏感元件因过压击穿);
  4. 脉冲耐受能力:峰值脉冲电流(Ipp)43.5A@10/1000μs波形,峰值脉冲功率(Ppp)400W@10/1000μs波形,可应对常见浪涌冲击(如电源开关瞬变、雷击感应、静电放电);
  5. 击穿特性:反向击穿电压典型值7V,漏电流(Ir)800μA(反向截止时),参数一致性好,避免误触发或防护不足;
  6. 温度范围:-65℃~+150℃,覆盖工业级、汽车级环境温度需求,可在高低温循环场景下长期稳定工作。

三、封装特性与可靠性

SMAJ5.0CA采用DO-214AC封装(即SMA封装),具备以下优势:

  • 小体积:贴片式设计,尺寸仅约3.5mm×1.5mm×1.0mm,节省PCB空间,适配便携设备、小型模块(如智能手表、车载传感器);
  • 贴装兼容性:支持自动化SMT贴装,生产效率高,适合批量制造;
  • 机械可靠性:封装结构紧凑,抗振动、抗冲击能力强,满足车载、工业设备的振动环境要求;
  • 散热设计:虽为小封装,但400W脉冲功率下的散热结构可保证单次/多次脉冲冲击后的性能稳定,避免热失效。

四、典型应用场景

SMAJ5.0CA因“小体积+双向防护+宽温”特性,广泛应用于以下领域:

  1. 消费电子:手机、平板、蓝牙耳机的USB/Type-C接口、充电端口防护(应对静电、拔插浪涌);
  2. 汽车电子:车载传感器(胎压监测、温度传感器)、小功率控制模块(车门控制器、后视镜调节模块)的过压防护;
  3. 工业控制:PLC输入输出端口、工业传感器节点、小型电机驱动电路;
  4. 通信设备:路由器、交换机的以太网接口、无线模块的射频端口;
  5. 便携设备:智能手表、运动相机、手持终端的充电与数据接口。

五、品牌与品质保障

台湾迪嘉(TWGMC)是专注于过压防护器件的专业制造商,SMAJ5.0CA符合以下品质要求:

  • 生产工艺符合RoHS、REACH等环保标准,无有害物质;
  • 参数一致性经过严格测试,批次差异小,降低电路设计风险;
  • 部分型号满足AEC-Q101汽车级标准(宽温特性已适配汽车环境);
  • 提供完整的 datasheet 与技术支持,方便客户选型、电路仿真及批量应用。

该产品凭借“小体积、高防护、宽温适配”的核心优势,成为消费电子、汽车电子、工业控制等领域的高性价比过压保护选择。

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