WMSIC Electronic Components

GOODWORK SMAJ10CA

ModelSMAJ10CA
PackageDO-214AC(SMA)
BrandGOODWORK
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
GOODWORK SMAJ10CA
Type
GOODWORK
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GOODWORK
Electronic Component
SMAJ10CA
Electronic Component
1
Package
DO-214AC(SMA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.098g
Electronic Component
1
Electronic Component
BM0265738085
Operating Temperature
55℃~+150℃
Voltage
17V
Current(Ir)
5uA
Voltage(VBR)
11.1V
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.

SMAJ10CA 双向瞬态抑制二极管(TVS)产品概述

一、产品定位与核心功能

SMAJ10CA是一款双向瞬态抑制二极管(TVS),属于静电放电(ESD)与浪涌保护器件范畴,专为低压电路的过压防护设计。其核心作用是在电路遭遇瞬态过压(如静电放电、雷电感应浪涌、开关瞬态干扰)时,快速导通并钳位电压至安全范围,避免后端敏感元器件(如MCU、传感器、IC)因过压损坏,保障电路稳定运行。

二、关键电气参数详解

SMAJ10CA的电气参数经过严格测试与标定,核心参数及实际意义如下:

  1. 极性:双向
    支持正负两个方向的过压保护,无需区分正负极安装,简化电路设计与生产工艺,适配双向信号线路防护。
  2. 反向截止电压(Vrwm):10V
    器件正常工作时(无过压),能承受的最大反向电压,此时器件处于截止状态,漏电流极小,不影响电路正常功能。
  3. 钳位电压:17V
    当遭遇峰值脉冲电流时,器件导通后将电压钳位至17V(典型值),确保后端电路电压不超过敏感元器件的耐压阈值(如普通IC的最大耐压通常为18V左右)。
  4. 峰值脉冲电流(Ipp):23.5A
    在8/20μs标准脉冲波形下,器件能承受的最大峰值脉冲电流,体现其对强浪涌的耐受能力,满足一般消费电子与工业场景的防护需求。
  5. 峰值脉冲功率(Ppp):400W
    脉冲功率容量(近似为Ipp与钳位电压的乘积),反映器件对瞬态能量的吸收能力,可有效抑制常见的浪涌冲击(如电源开关瞬态、静电放电)。
  6. 击穿电压:11.1V(典型值)
    反向电压达到此值时,器件开始击穿导通,是过压保护的启动阈值,比Vrwm高1.1V,避免误触发。
  7. 反向漏电流(Ir):5μA
    在Vrwm=10V下的反向漏电流,数值极小,不影响电路待机功耗,且降低长期工作时的发热风险。
  8. 工作温度范围:-55℃~+150℃(结温Tj)
    宽温范围设计,适应工业级、汽车级等 harsh环境(如户外设备、车载电子)的温度变化,可靠性更高。

三、封装与物理特性

SMAJ10CA采用SMA(DO-214AC)封装,是一款小型表面贴装封装,具有以下特点:

  • 体积小巧:封装尺寸约为3.0mm×1.5mm×1.0mm,适合高密度PCB布局,满足手机、平板等小型化设备的空间需求;
  • 安装便捷:2引脚表面贴装设计,兼容自动化贴装生产线,生产效率高,降低人工成本;
  • 可靠性高:封装采用耐高温塑料(如环氧树脂),焊接时无变形风险,且能有效抵御环境中的湿度、粉尘与机械振动影响。

四、典型应用场景

SMAJ10CA因参数适配低压电路,被广泛应用于以下领域:

  1. 消费电子:手机、平板、笔记本电脑的USB接口、HDMI接口、音频接口等,防护静电放电(如人体接触产生的ESD)与浪涌;
  2. 工业控制:PLC(可编程逻辑控制器)的输入输出端口、工业传感器(如温度、压力传感器)的信号线路,防止现场电磁干扰或浪涌;
  3. 汽车电子:车载12V低压系统(如车载音响、仪表盘、倒车雷达)的电路端口,适应汽车内-40℃~+85℃的温度变化与振动环境;
  4. 通信设备:路由器、交换机的以太网端口、光纤收发器的信号接口,防护通信线路中的雷电感应浪涌;
  5. 电源电路:低压直流电源(如5V、12V电源)的输入/输出端,吸收开关瞬态浪涌,保护电源模块与负载。

五、品牌与选型优势

SMAJ10CA由GOODWORK(固得沃克) 生产,该品牌是国内专注于保护器件的半导体厂商,具有以下选型优势:

  • 参数一致性:生产过程严格管控,击穿电压、钳位电压等关键参数一致性好(偏差≤±5%),减少电路设计中的不确定性;
  • 可靠性验证:产品经过高温老化(150℃×1000h)、ESD测试(符合IEC 61000-4-2标准,接触放电±8kV、空气放电±15kV)、浪涌测试(符合IEC 61000-4-5标准,1.2/50μs浪涌±2kV)等多项验证;
  • 性价比高:相比进口同类产品(如Littelfuse、ST的SMAJ10CA),价格更具竞争力,适合批量应用;
  • 技术支持:提供完善的应用指导(如电路布局建议)与样品支持,帮助客户快速完成电路设计与验证。

SMAJ10CA作为一款高性价比的双向TVS器件,凭借宽温范围、双向保护、小封装等特点,成为低压电路过压防护的优选方案,适用于消费电子、工业、汽车等多领域的电路设计。

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