WMSIC Electronic Components

YANGJIE SMAJ10A

ModelSMAJ10A
PackageDO-214AC(SMA)
BrandYANGJIE
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 Electronic Component

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
YANGJIE SMAJ10A
Type
DO-214AC(SMA)
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
SMAJ10A
Electronic Component
1
Package
DO-214AC(SMA)
Electronic Component
0.121g
Electronic Component
1
Electronic Component
BM0265634157
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.

SMAJ10A(扬杰)瞬态抑制二极管产品概述

一、产品定位与核心属性

SMAJ10A是扬杰科技推出的单向瞬态抑制二极管(TVS),属于小功率表面贴装过压保护器件,专为电子电路中的瞬态浪涌电压抑制设计。其核心作用是在电路遭遇静电放电(ESD)、雷电感应或开关浪涌时,快速导通泄放瞬态能量,将电路电压钳位在安全范围内,避免后级敏感元器件(如MCU、传感器、通信芯片等)损坏。

该型号针对小型化、宽温环境的应用需求开发,适配消费电子、汽车电子、工业控制等领域的低功耗电路保护场景,是替代传统压敏电阻的高可靠性选择。

二、关键电气参数详解

SMAJ10A的电气参数严格遵循JEDEC等行业标准,核心参数可支撑典型小功率浪涌防护需求:

1. 静态工作特性

  • 反向截止电压(Vrwm):10V
    器件正常工作时反向可承受的最大直流电压,建议电路工作电压≤8V(留2V余量,避免静态过压)。
  • 反向漏电流(Ir):5μA@Vrwm
    静态漏电流极小,不影响电路正常功耗,避免器件发热或误触发。
  • 击穿电压(Vbr):12.3V
    反向击穿的典型阈值电压,击穿后进入低阻态实现瞬态钳位,导通响应时间<1ns。

2. 瞬态抑制能力

  • 钳位电压(Vc):17V@Ipp
    浪涌峰值电流下器件两端的最高电压,是保护后级器件的关键指标(需确保后级器件最大耐压≥17V)。
  • 峰值脉冲电流(Ipp):23.53A@10/1000μs
    对应标准10/1000μs浪涌波形(前沿10μs、半峰值持续1000μs)的最大泄放电流,可应对常见开关浪涌或轻微雷电感应。
  • 峰值脉冲功率(Ppp):400W@10/1000μs
    单次浪涌的耐受功率容量,满足小功率电路(如5V/12V电源)的防护需求。

3. 温度适应性

  • 工作温度范围:-55℃~+150℃
    覆盖工业级宽温环境,可稳定工作于低温(北方户外设备)、高温(车载引擎舱周边)场景,无需额外降额。

三、封装与物理特性

SMAJ10A采用DO-214AC(SMA)表面贴装封装,具备以下优势:

  • 体积紧凑:典型尺寸2.4mm×1.6mm×1.0mm,适配手机、可穿戴设备等小型化PCB设计;
  • 安装便捷:表面贴装工艺兼容自动化生产,阳极/阴极标识清晰(通常为色环端为阴极),安装时需注意极性;
  • 机械可靠性:塑封结构抗机械冲击(≥1000g)、振动(10~2000Hz),适合移动设备或工业振动环境。

四、典型应用场景

结合参数特性,SMAJ10A的核心应用场景包括:

  1. 消费电子接口保护:手机USB充电口、平板音频接口、笔记本SIM卡槽,防护ESD或充电浪涌;
  2. 汽车电子辅助电路:车载胎压传感器、车门控制模块、小功率摄像头,应对汽车点火浪涌或环境温度变化;
  3. 工业控制低功耗电路:PLC输入输出接口、温度传感器节点,防护工业现场开关浪涌;
  4. 通信设备接口:路由器RJ45端口、Wi-Fi天线,抑制静电或雷电感应浪涌;
  5. 小功率电源模块:5V/12V DC-DC电源输出端,防护电源瞬态过压。

五、选型与使用注意事项

  1. 极性匹配:单向TVS仅保护反向浪涌,需根据电路浪涌方向焊接(如电源正极接TVS阴极,负极接阳极);
  2. 参数冗余:若电路存在频繁浪涌,建议选择Ppp稍大的型号(如SMAJ11A),避免器件老化;
  3. 布局优化:尽量靠近被保护器件或接口,减少引线电感对防护效果的影响;
  4. 降额使用:长期工作时,建议Vrwm降额至电路工作电压的1.2倍以上,延长器件寿命。

SMAJ10A凭借宽温性能、小体积和高可靠性,成为低功耗电路过压保护的高性价比选择,可覆盖多数消费电子及工业场景的防护需求。

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