WMSIC Electronic Components

Brightking SMDJ54CA/TR13 SMDJ54CA

ModelSMDJ54CA/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 SMDJ54CA / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMDJ54CA/TR13
Electronic Component
1
Package
SMC(DO-214AB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.41g
Electronic Component
1
Electronic Component
BM0264886824
Voltage
87.1V
Current(Ir)
2uA
Voltage(VBR)
60V
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 SMDJ54CA/TR13 瞬态抑制二极管(TVS)产品概述

一、产品核心定位与应用场景

Brightking SMDJ54CA/TR13是一款双向瞬态抑制二极管(TVS),专为中等功率场景下的过压防护设计,可有效抵御雷击浪涌、静电放电(ESD)、开关瞬态等干扰,保障电路免受瞬态过压损坏。其典型应用覆盖:

  • 工业控制设备:PLC、伺服驱动器的电源与信号端口防护;
  • 通信设备:路由器、交换机的以太网接口、电源模块防护;
  • 消费电子:智能家电、显示器的电源输入与接口防护;
  • 汽车电子(适配严苛环境):车载中控、传感器的辅助防护(经可靠性验证)。

二、关键电气参数深度解析

该器件的核心参数直接决定防护性能,以下为关键参数的实际意义:

2.1 钳位与截止特性

  • 反向截止电压(Vrwm=54V):电路正常工作时,TVS处于截止状态的最大电压(不导通的电压上限)。若电路工作电压≤54V,TVS不会干扰正常信号传输,保证电路低损耗运行;
  • 击穿电压(Vbr=60V):TVS开始导通的起始电压。当电压超过54V后,器件逐渐导通,至60V时进入低阻钳位状态,快速响应过压;
  • 钳位电压(Vc=87.1V):在峰值脉冲电流(Ipp=34.4A)下,TVS两端的电压。该值远低于多数后端IC的耐压(如100V以上),可有效保护敏感器件免受过压冲击。

2.2 脉冲耐受能力

  • 峰值脉冲功率(Ppp=3kW):以10/1000μs(或8/20μs)标准浪涌波形测试的最大耐受功率,可应对单次或低重复频率的浪涌干扰(如雷击感应浪涌);
  • 峰值脉冲电流(Ipp=34.4A):对应3kW功率下的峰值电流,能覆盖常见中等强度浪涌,避免器件因电流过大损坏。

2.3 反向漏电流

  • 反向电流(Ir=2μA):在Vrwm=54V下的漏电流,数值极小,不会导致电路功耗增加或信号失真,保证正常工作状态下的稳定性。

三、封装与可靠性设计

SMDJ54CA/TR13采用SMC(DO-214AB)表面贴装封装,具备以下优势:

  • 体积紧凑:封装尺寸约2.3mm(宽)×6.0mm(长)×1.0mm(高),适配高密度PCB设计,节省空间;
  • 焊接兼容性:支持回流焊、波峰焊等自动化焊接工艺,适合批量生产,降低制造成本;
  • 热性能优异:封装热阻低,可快速 dissipate 脉冲功率产生的热量,避免器件过热失效;
  • 可靠性保障:Brightking作为专业防护器件厂商,该产品经过温度循环(-55℃~150℃)、湿度测试(85℃/85%RH)等验证,可在工业级环境下稳定工作10万小时以上。

四、典型应用电路参考

4.1 直流电源端口防护

将TVS并联在电源正负极之间(双向无需区分极性),当电源出现浪涌时,TVS快速击穿钳位,限制电压在87.1V以内,保护后端DC-DC转换器或IC:

[电源输入] → [保险丝] → [TVS并联(正→负)] → [后端电路]

4.2 差分信号线路防护

针对RS485、CAN总线等差分信号,在每根信号线与地之间并联TVS,同时在总线两端并联TVS,实现共模与差模浪涌防护:

[信号端A] → [TVS1(A→地)] [信号端B] → [TVS2(B→地)] [总线两端] → [TVS3(A→B)]

4.3 接口防护(如USB)

结合压敏电阻(MOV)实现“粗防护+精防护”级联:MOV先承受大电流浪涌,TVS再钳位到安全电压,保护USB控制器:

[USB接口] → [MOV并联] → [TVS并联] → [USB控制器]

五、选型与替换注意事项

  1. 参数匹配优先:替换时需确保:
    • Vrwm ≥ 电路正常工作电压(避免TVS在正常状态下导通);
    • Vc ≤ 后端器件的最大耐压(保证保护有效性);
    • Ppp ≥ 预期浪涌功率(耐受能力匹配);
  2. 封装兼容确认:SMC封装的引脚间距(约2.54mm)需与PCB焊盘匹配,避免焊接不良;
  3. 极性无需区分:双向TVS无需关注正负极,安装时可直接焊接,简化设计流程;
  4. 级联防护建议:若浪涌功率较大,可与MOV、气体放电管(GDT)级联,提升整体防护等级(如MOV先泄放大电流,TVS再钳位电压)。

该器件凭借双向防护、高脉冲耐受能力与紧凑封装,成为工业、通信等领域中等功率过压防护的优选方案,可有效降低电路因瞬态干扰导致的故障风险。

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