WMSIC Electronic Components

Brightking 5.0SMDJ12A/TR13 5.0SMDJ12A

Model5.0SMDJ12A/TR13
PackageSMC(DO-214AB)
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 5.0SMDJ12A / TR13
Type
SMC(DO-214AB)
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
5.0SMDJ12A/TR13
Electronic Component
1
Package
SMC(DO-214AB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.371g
Electronic Component
1
Electronic Component
BM0264881725
Voltage
19.9V
Current(Ir)
800uA
Voltage(VBR)
13.3V
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.

Brightking 5.0SMDJ12A/TR13 瞬态抑制二极管(TVS)产品概述

一、产品定位与核心类别

5.0SMDJ12A/TR13是台湾君耀(Brightking)推出的单向瞬态抑制二极管(TVS),属于SMDJ系列低电压防护器件,专为12V电压等级的电子电路设计。核心作用是快速响应瞬态浪涌电压,将其钳位在安全范围内,避免后端敏感元器件(如IC、MOS管、传感器等)因过压击穿或烧毁,是12V系统浪涌防护的高性价比选择。

二、关键电气参数深度解读

该器件的核心参数直接决定防护能力,需重点关注以下指标(均为典型值/额定值):

1. 工作与防护阈值参数

  • 反向工作峰值电压(Vrwm):12V
    电路正常运行时允许施加的最大反向直流电压,若反向电压超过12V,器件可能提前导通或漏电流异常增大,影响电路稳定性。
  • 击穿电压(Vbr):13.3V
    器件反向击穿的阈值电压,仅当浪涌电压超过13.3V时才会导通防护,正常工作电压(≤12V)下处于截止状态,无明显导通损耗。

2. 浪涌防护核心参数

  • 钳位电压(Vc):19.9V
    浪涌发生时,器件快速击穿后将电路电压钳位的最大值,需确保后端器件的最大耐受电压高于19.9V(如常见IC的最大工作电压多为20V以上,可匹配)。
  • 峰值脉冲电流(Ipp):252A
    8/20μs标准浪涌波形下,器件能承受的单次最大浪涌电流,若浪涌电流超过252A,可能导致器件失效。
  • 峰值脉冲功率(Ppp):5kW
    对应浪涌能量的承受上限(近似计算:252A×19.9V≈5015W),直接反映器件抗浪涌的能量能力,可覆盖多数民用/工业级浪涌场景。

3. 静态损耗参数

  • 反向漏电流(Ir):800μA
    12V正常工作电压下的反向漏电流,远低于1mA,不会对电路功耗产生明显影响,确保系统待机/运行效率。

三、封装设计与可靠性保障

器件采用SMC封装(DO-214AB),属于表面贴装型封装,具有以下优势:

  1. 尺寸紧凑:封装尺寸约6.1×5.1×2.5mm,适合高密度PCB布局,满足手机、小型工业模块等小型化设备需求。
  2. 焊接可靠性:兼容回流焊、波峰焊等主流工艺,焊点强度高,批量生产中虚焊率低。
  3. 散热性能:封装结构利于热量快速扩散,可承受短时间内的5kW脉冲功率冲击,避免器件过热失效。

君耀作为专业TVS厂商,该器件参数一致性高(批量生产偏差控制在±5%以内),适合工业级批量应用。

四、典型应用场景

5.0SMDJ12A/TR13主要针对12V电压系统的浪涌防护,典型应用包括:

  1. 消费电子:手机/平板充电端口(USB-C、DC接口)、笔记本电脑电源输入的过压防护,防止电源浪涌损坏电池或主板。
  2. 工业控制:PLC输入/输出接口、温度/压力传感器信号线路防护,避免现场电磁干扰或雷击浪涌影响设备稳定。
  3. 通信设备:路由器、交换机的电源模块、以太网接口防护,保障网络设备在复杂电磁环境下正常运行。
  4. 电源系统:12V直流电源(LED驱动、监控电源)输出端防护,防止负载突变或外部浪涌损坏电源模块。

五、选型与使用注意事项

  1. 极性匹配:该器件为单向TVS,仅防护电源正端→地的浪涌;若需双向防护(如信号线路正负浪涌),需选择5.0SMDJ12CA等双向型号。
  2. 安装方式:TVS需并联在被保护电路两端(正极接高电位,负极接低电位),不可串联(会切断正常电路)。
  3. 浪涌等级匹配:需根据实际场景的浪涌等级(如IEC 61000-4-5标准的2kV/3kA浪涌测试)选型,确保Ipp、Ppp覆盖需求。
  4. 焊接规范:遵循君耀datasheet要求(回流焊峰值温度≤260℃,时间≤40秒),避免高温损坏器件。
  5. 环境适应性:工作温度范围-55℃+150℃,可满足工业级(-40℃+85℃)与消费电子(0℃~+70℃)的环境需求。

该器件凭借高防护能力、紧凑封装与可靠性能,成为12V系统浪涌防护的常用选型,广泛应用于消费电子、工业控制与通信领域。

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