WMSIC Electronic Components

CJ 5.0SMDJ36A

Model5.0SMDJ36A
PackageSMCG
BrandCJ
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
CJ 5.0SMDJ36A
Type
CJ
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
5.0SMDJ36A
Electronic Component
1
Package
SMCG
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.402g
Electronic Component
1
Electronic Component
BM0264584531
Operating Temperature
55℃~+150℃
Voltage
58.1V
Current(Ir)
5uA
Voltage(VBR)
40V
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.

5.0SMDJ36A瞬态抑制二极管(TVS)产品概述

一、产品定位与核心属性

5.0SMDJ36A是江苏长电科技(CJ) 推出的单向瞬态抑制二极管(TVS),专为低压电子系统的浪涌/静电过压防护设计。该器件采用SMCG表面贴装封装,属于5.0SMDJ系列的典型型号,核心作用是在电路遭遇瞬态过压时快速响应,将电压钳位至安全范围,避免后级敏感元件(如芯片、传感器)损坏。

二、关键电气参数深度解析

TVS的防护能力由核心参数决定,5.0SMDJ36A的参数设计针对性强,适配多数低压场景:

1. 反向截止电压(Vrwm)

36V(最大值),指器件正常工作时可承受的最大反向直流电压。电路正常运行时,该电压需高于系统额定电压(如24V电源系统),确保TVS不导通、无额外功耗。

2. 击穿电压(Vbr)

40V(典型值),是TVS反向击穿的起始电压,略高于Vrwm(36V)。该设计保证:正常工况下TVS处于截止状态,仅在浪涌电压超过40V时快速击穿,启动防护。

3. 钳位电压与峰值脉冲功率

  • 钳位电压(Vc):58.1V(最大值),是浪涌发生时TVS能将电压限制的最高安全值,直接决定后级电路的防护上限;
  • 峰值脉冲功率(Ppp):5kW,反映器件可承受的最大浪涌功率(公式:Ppp = Vc × Ipp)。该参数覆盖常见浪涌波形(如8/20μs、10/1000μs),满足多数低压系统的防护需求。

4. 峰值脉冲电流(Ipp)

86.1A,由Ppp与Vc推导得出(5000W ÷ 58.1V ≈ 86.1A),是TVS可承受的最大浪涌电流,是评估防护能力的核心指标之一。

5. 反向漏电流(Ir)

5μA(最大值),远低于常规TVS的漏电流水平(通常≤10μA)。该特性确保器件在正常反向偏置时功耗极低,不影响电路效率与稳定性。

三、封装与品牌优势

1. SMCG封装特性

  • 属于DO-214AB(SMC)标准表面贴装封装,尺寸紧凑(约6.0×5.0×2.5mm),适配回流焊工艺,适合高密度PCB布局;
  • 具备良好的热 dissipation能力,可快速散发热量,避免浪涌后器件过热损坏。

2. CJ品牌背书

江苏长电科技是国内半导体封装测试龙头企业,TVS产品系列覆盖全功率段(从低功率ESD防护到高功率浪涌防护),符合RoHS、REACH等环保标准,广泛应用于消费电子、工业控制、通信等领域,质量可靠性经市场长期验证。

四、典型应用场景

5.0SMDJ36A的参数适配多种低压电子系统,核心应用场景包括:

1. 消费电子

手机、平板、笔记本电脑的电源输入端口、USB接口,防护静电放电(ESD)与电源浪涌对主板芯片的损坏。

2. 工业控制

PLC模块、传感器节点、电机驱动电路的电源/信号端口,应对电网瞬态浪涌(如开关切换、雷击感应)。

3. 通信设备

路由器、交换机、光模块的信号链路与电源端口,防护静电及通信线路浪涌。

4. 低压汽车电子

12V系统的辅助电路(如车载充电器、仪表盘),防止过压冲击对敏感元件的影响。

五、选型与使用注意事项

为确保防护效果,需注意以下要点:

1. 电压匹配

Vrwm需大于电路正常工作电压(如24V系统选36V Vrwm的器件),避免正常工况下漏电流过大。

2. 功率覆盖

需根据电路可能出现的最大浪涌功率选择,5.0SMDJ36A的5kW峰值功率可覆盖多数低压场景;若浪涌功率更高,可并联多个器件(注意均流设计)。

3. 极性确认

5.0SMDJ36A为单向TVS(后缀“A”表示单向),需反向并联于被保护电路(阴极接高压端,阳极接低压端)。

4. PCB布局

尽量靠近被保护端口,缩短引线长度,减少寄生电感(寄生电感会降低钳位效果)。

5. 环境适应性

工作温度范围通常为-55℃~150℃,满足工业与消费电子的环境要求。

总结

5.0SMDJ36A凭借紧凑封装、高防护能力、低漏电流的特性,成为低压电子系统过压防护的高性价比选择,适合对空间与可靠性有要求的设计场景,可有效降低电路因浪涌/静电导致的故障风险。

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