WMSIC Electronic Components

Brightking SMCJ14A/TR13 SMCJ14A

ModelSMCJ14A/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 SMCJ14A / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMCJ14A/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
BM0264856025
Voltage
23.2V
Electronic Component
IEC 61000-4-2
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.

Brightking SMCJ14A/TR13 瞬态抑制二极管(TVS)产品概述

一、产品定位与核心类别

Brightking(台湾君耀)SMCJ14A/TR13是一款单向瞬态抑制二极管(TVS),专为电子设备的过压防护设计,核心作用是吸收电路中的瞬态浪涌(如静电放电ESD、电源尖峰、雷击感应浪涌),保护后端敏感电子元件(如MCU、传感器、通信接口芯片等)免受损坏,避免设备故障或失效。该型号匹配12V左右工作电压的电路系统,是消费电子、工业控制等领域的常用防护器件。

二、关键电气参数解析

SMCJ14A/TR13的核心参数明确了防护能力边界,各参数意义如下:

  • 极性:单向 → 仅抑制某一方向的过压,使用时需严格匹配电路极性;
  • 反向截止电压(Vrwm):14V → 正常工作状态下,反向偏置时不导通的最大电压(建议电路工作电压≤12V,留10%~20%余量);
  • 击穿电压(Vbr):15.6V → 反向偏置时开始导通的阈值电压,标志TVS进入防护状态;
  • 钳位电压(Vc):23.2V → 峰值脉冲电流(Ipp)通过时,TVS两端的最大电压(后端器件需能承受≤23.2V的冲击);
  • 峰值脉冲电流(Ipp):64.7A → 10/1000μs波形下可承受的最大脉冲电流峰值;
  • 峰值脉冲功率(Ppp):1.5kW → 对应Ipp与Vc的乘积(64.7A×23.2V≈1.5kW),体现浪涌能量吸收能力;
  • 反向漏电流(Ir):1μA → 正常工作电压下的漏电流,数值极小,对电路功耗无明显影响;
  • 防护标准:IEC 61000-4-2 → 符合静电放电防护标准,可应对接触放电8kV、空气放电15kV的典型ESD冲击。

三、封装与物理特性

SMCJ14A/TR13采用SMC封装(DO-214AB),是表面贴装式无引脚封装,物理特性如下:

  • 尺寸(典型值):长度6.1mm±0.2mm,宽度5.2mm±0.2mm,高度2.3mm±0.2mm → 体积小巧,节省PCB空间;
  • 工作温度范围:-55℃~+150℃ → 覆盖工业级环境温度需求;
  • 封装材料:环氧树脂封装 → 绝缘性、耐湿性、机械强度优异,焊接可靠性高;
  • 焊接工艺:支持回流焊(峰值温度≤260℃,时间≤10s),适合自动化贴装。

四、防护原理与核心优势

防护原理

当电路出现瞬态过压(高于Vbr)时,TVS迅速从高阻态转为低阻态,将过压钳位在Vc以下,同时通过自身泄放瞬态能量,避免后端器件因过压击穿损坏。

核心优势

  1. 响应速度快(ns级):能毫秒级响应浪涌/ESD冲击,适合高频电路防护;
  2. 钳位电压稳定:Vc参数明确,防护效果可预测,无需额外校准;
  3. 低功耗:1μA漏电流不影响电路正常工作;
  4. 高可靠性:符合IEC 61000-4-2标准,通过多次浪涌冲击测试;
  5. 易集成:SMC封装适合高密度PCB设计,布局灵活。

五、典型应用领域

SMCJ14A/TR13广泛应用于以下场景:

  1. 消费电子:智能手机、平板电脑、笔记本电脑的USB、HDMI接口,电源端口防护;
  2. 工业控制:PLC输入输出模块、传感器接口、RS485/CAN总线防护;
  3. 通信设备:路由器、交换机、基站的以太网接口、射频接口防护;
  4. 家电产品:智能电视、洗衣机、空调的控制电路防护;
  5. 汽车电子(商业级):车载娱乐系统、仪表盘电路的过压防护(若需汽车级,需确认型号后缀)。

六、选型与使用注意事项

  1. 电压匹配:电路正常工作电压需≤Vrwm(14V),避免长期工作在接近Vrwm的电压下;
  2. 极性确认:单向TVS反向安装会失去防护作用,需标注电路极性;
  3. 浪涌能量匹配:需确认应用场景的浪涌能量(功率×时间)不超过Ppp(1.5kW);
  4. 布局建议:TVS应尽可能靠近被保护器件或接口,减少引线电感,提升防护效果;
  5. 焊接规范:遵循SMC封装的回流焊/波峰焊参数,避免高温损坏器件。

Brightking SMCJ14A/TR13凭借稳定的防护性能、小体积封装和高可靠性,成为12V左右电路系统中过压防护的主流选型之一,可有效降低设备因瞬态过压导致的故障风险。

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