WMSIC Electronic Components

Brightking SMCJ43A/TR13 SMCJ43A

ModelSMCJ43A/TR13
PackageSMC
BrandBrightking
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
Brightking SMCJ43A / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMCJ43A/TR13
Electronic Component
1
Package
SMC
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.38g
Electronic Component
1
Electronic Component
BM0259732999
Operating Temperature
65℃~+150℃
Voltage
69.4V
Current(Ir)
1uA
Voltage(VBR)
47.8V
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.

Brightking SMCJ43A/TR13 瞬态抑制二极管(TVS)产品概述

SMCJ43A/TR13是台湾君耀(Brightking)推出的单向极性瞬态抑制二极管(TVS),专为电子电路的瞬态过压防护设计,兼具高脉冲耐受能力与宽温适应性,适用于工业、汽车、通信等多领域的中等功率电路保护。

一、产品基本定位与核心类别

该器件属于贴片式TVS管,型号中“SMCJ”代表SMC封装与中等功率等级,“43A”明确其反向截止电压(Vrwm)为43V(单向),“TR13”为编带包装标识(适配自动化贴装与批量生产)。作为瞬态抑制核心器件,其作用是在电路遭遇雷击、静电放电(ESD)、开关瞬态等电压尖峰时,快速导通并钳位电压至安全范围,避免敏感元器件(如MCU、传感器)损坏。

二、核心电气参数深度解析

SMCJ43A/TR13的参数精准匹配中等功率电路的防护需求,关键特性如下:

1. 截止态与击穿特性

  • 反向截止电压(Vrwm):43V:电路正常工作时器件处于截止状态,不干扰信号传输;当瞬态电压超过该值时,器件快速响应导通。
  • 击穿电压(Vbr):47.8V:为Vrwm的1.11倍,符合TVS管典型特性(击穿电压略高于截止电压,确保正常工作时不提前导通)。
  • 反向漏电流(Ir):1μA:截止态漏电流极小,可忽略不计,避免对电路功耗与信号完整性造成影响。

2. 脉冲耐受与钳位能力

  • 峰值脉冲功率(Ppp):1.5kW:可承受最高1.5千瓦的峰值脉冲功率,有效应对10/1000μs、8/20μs等常见瞬态脉冲波形。
  • 峰值脉冲电流(Ipp):21.7A:对应1.5kW峰值功率下的最大脉冲电流,适合小功率电源、传感器接口等中等功率电路的过流防护。
  • 钳位电压(Vc):69.4V:在额定脉冲电流下,将电压钳位至69.4V,确保后端敏感元器件的工作电压不超过耐受极限。

3. 温度适应性

  • 工作温度范围:-65℃~+150℃:覆盖工业级宽温要求,可稳定工作于户外设备、高温工业现场等极端环境,无需额外温度补偿。

三、封装设计与可靠性优势

SMCJ43A/TR13采用SMC贴片封装,具备三大核心优势:

  • 体积紧凑:贴片式设计节省PCB空间,适配高密度电路布局(如小型化工业模块、车载电子单元)。
  • 贴装便捷:编带包装(TR13)支持自动化贴装,提高生产效率,降低人工成本。
  • 可靠性强:君耀的封装工艺确保器件在宽温、振动、冲击环境下性能稳定,符合工业与汽车电子的可靠性标准。

四、典型应用场景梳理

基于参数特性,该器件广泛应用于以下场景:

  1. 工业控制电路:PLC输入输出接口、温度/压力传感器、电机驱动辅助电路的过压防护,应对现场瞬态干扰。
  2. 汽车电子系统:车载传感器(胎压监测、氧传感器)、小功率控制模块(车窗控制)的瞬态防护,适配汽车级温度与振动要求。
  3. 通信设备接口:以太网、RS485/RS232接口的浪涌保护,防止雷击或静电损坏通信模块。
  4. 消费电子辅助保护:电源适配器、笔记本电脑接口的辅助过压保护,配合保险丝实现多级防护。

五、品牌与质量保障

台湾君耀(Brightking)是全球知名TVS管制造商,产品符合RoHS环保标准与UL认证(部分系列)。SMCJ43A/TR13经过严格可靠性测试(高低温循环、脉冲寿命测试),确保批量应用中的一致性与稳定性。

综上,SMCJ43A/TR13凭借高脉冲耐受、宽温适应、紧凑封装等优势,成为中等功率电路瞬态过压防护的高性价比选择,适配多行业电子设备的防护需求。

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