WMSIC Electronic Components

Jingdao Microelectronics SMAJ13A

ModelSMAJ13A
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 SMAJ13A
Type
Jingdao Microelectronics
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
SMAJ13A
Electronic Component
1
Package
SMA
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.12g
Electronic Component
1
Electronic Component
BM0264919869
Operating Temperature
65℃~+150℃
Voltage
21.5V
Current(Ir)
1uA
Voltage(VBR)
15.9V
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.

SMAJ13A TVS二极管产品概述

一、核心电气参数

SMAJ13A是晶导微电子推出的SMA封装瞬态抑制二极管(TVS),其核心电气参数直接决定了防护能力与应用场景,具体如下:

  • 反向截止电压(Vrwm):13V(直流工作状态下的最大反向电压,正常电路中反向电压需低于此值,避免器件误导通);
  • 击穿电压(Vbr):15.9V(反向电压达到此阈值时,器件从截止态快速转为导通态,启动过压防护);
  • 钳位电压(Vc):21.5V(在峰值脉冲电流下,器件能将电压限制在21.5V以内,确保后级敏感电路安全);
  • 峰值脉冲电流(Ipp):18.6A(10/1000μs脉冲波形下的最大允许脉冲电流,体现单次浪涌耐受能力);
  • 峰值脉冲功率(Ppp):400W(10/1000μs波形下的最大脉冲功率,反映器件抗浪涌的能量上限);
  • 反向漏电流(Ir):1μA(反向截止电压下的最大漏电流,低功耗特性适合对能耗敏感的电路);
  • 工作温度范围:-65℃至+150℃,覆盖工业级环境的温度波动需求。

二、产品核心特性

SMAJ13A的设计针对低电压电路的瞬态过压防护,核心特性突出实用性与可靠性:

  1. 快速响应:作为TVS器件,可在纳秒级时间内响应瞬态过压(如静电放电、电源浪涌),迅速钳位电压,避免后级MCU、传感器等敏感元件损坏;
  2. 低功耗兼容:反向漏电流仅1μA,正常工作时对电路总功耗影响可忽略,适配手机、平板等低功耗终端;
  3. 宽温可靠性:-65℃至+150℃的工作范围,满足工业控制、车载(部分场景)等严苛环境的温度要求;
  4. 小型化封装:采用SMA(DO-214AC)贴片封装,典型尺寸为3.0mm×1.5mm×1.0mm,节省PCB空间,支持自动化贴装,提升生产效率;
  5. 多次浪涌耐受:峰值脉冲功率400W,可承受多次10/1000μs浪涌冲击,长期使用可靠性稳定。

三、典型应用场景

SMAJ13A的电压参数与封装优势,使其成为12V左右低电压电路的主流防护器件,典型应用包括:

  1. 消费电子:手机、平板、笔记本电脑的USB接口、充电端口、耳机接口的过压保护,防止静电或充电器浪涌损坏;
  2. 通信设备:路由器、交换机、基站的以太网接口、射频端口、电源输入的瞬态干扰抑制,保障信号传输稳定;
  3. 工业控制:PLC模块、传感器节点、电机驱动电路、工业电源的过压防护,适应工业现场的宽温与浪涌环境;
  4. 低电压电源:12V直流电源(如安防监控、LED照明电源)的浪涌保护,避免电源波动对负载的损坏。

四、封装与可靠性

SMAJ13A采用SMA(DO-214AC)表面贴装封装,符合国际电子封装标准,可靠性设计突出:

  • 封装兼容性:贴片式结构适配回流焊、波峰焊工艺,便于自动化生产,降低组装成本;
  • 环境适应性:封装材料耐高温、耐潮湿,配合宽温工作范围,可在工业现场、户外终端等恶劣环境下稳定工作;
  • 可靠性测试:器件经过温度循环、湿度老化、浪涌寿命测试等严格验证,确保批量应用的一致性与稳定性。

五、品牌背景

晶导微电子是国内专注于半导体分立器件研发与制造的高新技术企业,拥有完整的设计、生产、测试体系,产品覆盖TVS二极管、整流二极管、三极管等多个系列,广泛应用于通信、消费电子、工业控制等领域。SMAJ13A作为其TVS系列的主流产品,以稳定的性能、高性价比和可靠的供货能力,获得国内众多客户的认可。

综上,SMAJ13A是一款专为12V左右低电压电路设计的高性价比TVS二极管,兼具快速响应、低功耗、宽温可靠等特性,是消费电子、通信、工业控制等领域过压防护的理想选择。

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