WMSIC Electronic Components

Brightking SMAJ14A/TR13 SMAJ14A

ModelSMAJ14A/TR13
PackageSMA
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SMAJ14A / TR13
Type
BRIGHTKING
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMAJ14A/TR13
Electronic Component
1
Package
SMA
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.124g
Electronic Component
1
Electronic Component
BM0257694855
Operating Temperature
65℃~+150℃
Voltage
23.2V
Current(Ir)
1uA
Voltage(VBR)
15.6V
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.

SMAJ14A/TR13 产品概述

一、产品简介

SMAJ14A/TR13 为 Brightking(台湾君耀)推出的一款单向 TVS 晶体管,采用 SMA 表面贴装封装,专为抑制瞬态过压和防护敏感电子元件而设计。器件在14V 工作电压下具有快速钳位能力,适用于汽车电子、工业电源与通信接口等需要抗浪涌保护的场景。

二、主要电气性能

  • 极性:单向
  • 反向截止电压 Vrwm:14 V
  • 击穿电压 Vbr:15.6 V
  • 钳位电压(Ipp 条件下):23.2 V
  • 峰值脉冲电流 Ipp:17.2 A
  • 峰值脉冲功率 Ppp:400 W
  • 反向漏电流 Ir:1 µA(典型/最大值在额定 Vrwm 下)
  • 工作温度范围:-65 ℃ ~ +150 ℃

以上参数表明该器件在标准突发脉冲条件下能够将过压快速钳制到约23.2V,从而保护后端电路免受瞬态能量侵害。

三、封装与机械特性

SMA 封装为常用的 DO-214AC 表面贴装形式,体积小、散热路径短,便于自动贴装与回流焊接。SMAJ14A/TR13 对 PCB 布局要求较低,但为保证可靠性建议靠近被保护节点放置,并为焊盘提供足够的铜面积以利散热。

四、典型应用场景

  • 汽车车载电子中 12V/24V 总线的瞬态浪涌保护(作为车载电源侧或敏感模块保护)
  • 工业控制电源与驱动接口的过压防护
  • 通信设备、充电模块与开关电源的输入端瞬态抑制

五、选型与使用建议

  • 若系统工作电压或持续耐压高于 14V,应选择更高 Vrwm 等级的型号;反之可用于 12V 及类似工况的防护。
  • 布局时将 TVS 紧邻受保护器件或接口放置,减小走线寄生电感以提高钳位效率。
  • 在高能量冲击或反复脉冲环境下,应评估热耗散与器件寿命,必要时并联或选用更高功率等级的 TVS 以分散能量。
  • 注意焊接温度曲线与封装机械应力,遵循厂商回流参数以保证长期可靠性。

六、总结

SMAJ14A/TR13 是一款针对中等能量瞬态保护优化的单向 TVS 器件,具有 14V 工作点、23.2V 钳位和 400W 峰值脉冲功率的特点,适合对成本、尺寸与性能有平衡需求的电源与接口保护方案。合理的 PCB 布局与热管理能显著提升其保护效果与寿命。

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