WMSIC Electronic Components

Brightking SMCJ28A/TR13 SMCJ28A

ModelSMCJ28A/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 SMCJ28A / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMCJ28A/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
BM0259749289
Voltage
45.4V
Current(Ir)
1uA
Voltage(VBR)
31.1V
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 SMCJ28A/TR13 单向TVS瞬态抑制二极管产品概述

一、产品核心定位

SMCJ28A/TR13是台湾君耀(Brightking)推出的单向瞬态抑制二极管(TVS),属于过压保护器件范畴,专为电子电路中的静电放电(ESD)、雷击感应浪涌、开关瞬态脉冲等异常过压场景设计,可快速将过压钳位至安全范围,避免后端敏感元器件(如MCU、传感器、存储芯片等)因过压损坏。

型号标识解析:

  • SMCJ:对应DO-214AB(SMC)贴片封装系列;
  • 28:反向截止电压(Vrwm)标称值;
  • A:单向极性(双向型号为CA);
  • TR13:编带包装规格(适配自动化贴装)。

二、关键电性能参数解析

该器件的核心参数需结合过压保护逻辑理解,具体如下:

1. 极性与工作状态

单向设计,仅对单一方向过压(如电源正极→地)起保护作用:正常工作时反向截止,过压触发后进入雪崩击穿导通,瞬间泄放浪涌电流。

2. 反向截止电压(Vrwm=28V)

电路正常工作时可长期承受的最大反向电压,确保无导通漏电流(或极低漏电流),适配5V/12V等低中压电源系统(正常工作电压远低于28V)。

3. 击穿电压(Vbr=31.1V)

器件触发导通的阈值电压:当反向电压超过此值时,器件从截止态快速转为导通态,启动过压保护(无持续损坏风险)。

4. 钳位电压(Vc=45.4V)

导通后可将过压钳位的最高电压,是保护效果的核心指标——后端器件(如普通MCU)耐压多为50V以上,完全适配该钳位范围。

5. 峰值脉冲功率(Ppp=1.5kW)

单次瞬态脉冲可承受的最大功率,由钳位电压与峰值脉冲电流共同决定((V_c \times I_{pp} \approx 45.4V \times 33.1A \approx 1500W)),覆盖IEC 61000-4-5标准中多数浪涌场景(如2kV/2Ω浪涌功率约2000W,1.5kW满足主流需求)。

6. 反向漏电流(Ir=1μA)

Vrwm下的反向电流,数值极小(微安级),确保正常工作时器件功耗可忽略,不影响电路效率。

三、封装与应用适配性

采用SMC(DO-214AB)贴片封装,具备以下优势:

  • 体积紧凑:尺寸约2.8mm×1.8mm×1.1mm,适合智能手机、小型工业模块等高密度电路板;
  • 贴装便捷:符合回流焊工艺,支持自动化贴装,生产效率高;
  • 极性清晰:通过丝印(如阴极色环)区分极性,避免焊接错误;
  • 无散热要求:脉冲功率为瞬时泄放,无持续发热,无需额外散热设计。

四、品牌与可靠性保障

Brightking(君耀)是全球知名过压保护厂商,SMCJ28A/TR13具备以下可靠性优势:

  • 环保合规:符合RoHS 2.0、REACH标准,无铅无卤;
  • 可靠性测试:经过温度循环(-55℃~150℃)、湿度老化(85℃/85%RH)、脉冲寿命测试(多次浪涌后性能无衰减);
  • 参数一致性:批量生产中离散性小,确保电路保护效果稳定。

五、典型应用场景

结合参数与封装特点,该器件广泛应用于:

  1. 消费电子:手机/平板USB接口、笔记本充电端口,防止静电与充电浪涌;
  2. 工业控制:PLC模块、传感器节点的电源/信号线路,抵御开关浪涌与雷击感应;
  3. 通信设备:路由器、交换机的以太网端口/电源模块,应对静电与浪涌干扰;
  4. 车载辅助系统:车载多媒体、导航设备的辅助电源端口(车规级需确认AEC-Q101认证型号)。

总结

SMCJ28A/TR13以紧凑封装、1.5kW脉冲功率、低漏电流等特点,成为中低压电路过压保护的高性价比选择,适配多数电子设备的可靠性需求,是消费电子、工业控制等领域的常用保护器件。

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