WMSIC Electronic Components

YANGJIE SMBJ13A

ModelSMBJ13A
PackageDO-214AA(SMB)
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 26+

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
YANGJIE SMBJ13A
Type
DO-214AA(SMB)
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
SMBJ13A
Electronic Component
1
Package
DO-214AA(SMB)
Electronic Component
0.203g
Electronic Component
1
Electronic Component
BM0266020712
Electronic Component
Electronic Component
Electronic Component
3000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

扬杰SMBJ13A瞬态抑制二极管产品概述

一、产品定位与核心价值

SMBJ13A是扬杰科技推出的单向瞬态抑制二极管(TVS),属于DO-214AA(SMB)贴片封装系列,核心作用是为低压电子电路提供瞬态过压防护——当电路遭遇静电放电(ESD)、雷电感应浪涌、开关瞬态脉冲等突发过压时,能快速导通并将电压箝位在安全范围内,避免后端敏感元器件(如IC、MOS管、传感器等)被损坏,是小型电子设备过压防护的主流选型之一。

二、关键性能参数解析

SMBJ13A的核心参数围绕“防护可靠性”与“电路兼容性”设计,关键指标如下:

1. 反向截止与击穿特性

  • 反向截止电压(Vrwm):13V:电路正常工作时,反向施加13V及以下电压时,TVS呈高阻态(漏电流极小),不影响电路正常运行;
  • 击穿电压(Vbr):15.9V(典型值):当反向电压超过15.9V时,TVS进入雪崩击穿状态,快速导通;
  • 反向漏电流(Ir):5μA:正常工作时的反向漏电流极低,可忽略不计,避免对电源效率造成影响。

2. 脉冲防护能力

  • 箝位电压(Vc):21.5V:在10/1000μs标准脉冲波形下,导通后将电路电压限制在21.5V以内,是衡量防护有效性的核心指标(需匹配后端器件的耐压阈值);
  • 峰值脉冲电流(Ipp):27.9A:对应10/1000μs脉冲波形下的最大峰值电流,可承受强瞬态脉冲冲击;
  • 峰值脉冲功率(Ppp):600W:10/1000μs脉冲下的最大耗散功率,明确了产品的防护功率上限。

3. 封装与极性

  • 封装:DO-214AA(SMB):贴片式封装,尺寸小(约3.5×2.5×1.5mm),适配小型化电子设备的高密度PCB布局;
  • 极性:单向:仅能防护反向过压(色环端通常为阴极,需对应反向电压的负极,反接会导致短路)。

三、典型应用场景

SMBJ13A因体积小、防护能力适配低压电路,广泛应用于以下场景:

  1. 消费电子:手机、平板、智能手表的充电接口(USB Type-C/Micro-USB)、耳机接口的ESD/浪涌防护;
  2. 小型家电:智能插座、加湿器、扫地机器人的控制板电源端(12V/5V系统)防护;
  3. 汽车电子:车载USB接口、仪表盘低压控制模块的瞬态防护(适配12V车载系统);
  4. 工业控制:小型PLC模块、传感器节点的电源与信号端过压防护。

四、产品优势与适配性

1. 核心优势

  • 高可靠性:扬杰TVS产品通过AEC-Q101(汽车级)等认证(部分批次),满足工业/汽车级应用的可靠性要求;
  • 低损耗:5μA漏电流确保正常工作时无额外功耗,适配低功耗电路;
  • 快响应:响应时间达ns级(<1ns),可快速抑制瞬态脉冲;
  • 易集成:SMB封装支持回流焊、波峰焊,焊接工艺成熟,适配自动化生产。

2. 适配性

  • 可与国际品牌同规格TVS(如Vishay SMBJ13A、Littelfuse SMBJ13A)直接替换,降低采购成本;
  • 单向极性适配单向过压防护需求,若需双向防护可选择SMBJ13CA(双向型号)。

五、使用注意事项

  1. 极性匹配:单向TVS需并联在被保护电路的“电源正极→地”或“信号端→地”,且色环端接高电位侧(阴极),反接会导致正常工作时短路;
  2. 焊接温度:回流焊峰值温度≤260℃(持续≤30s),波峰焊温度≤240℃(持续≤5s),避免高温损坏器件;
  3. 并联扩容:若瞬态脉冲功率超过600W,需采用多个SMBJ13A并联(注意均流设计),或选择更高功率的P6SMB13A;
  4. 布局建议:尽可能靠近被保护器件或接口端布局,缩短引线长度,减少寄生电感对防护效果的影响。

SMBJ13A凭借“小体积、强防护、低损耗”的特点,成为低压电子设备过压防护的高性价比选择,适配消费电子、汽车电子、工业控制等多领域需求。

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