WMSIC Electronic Components

Brightking SMBJ40CA-AT/TR13 SMBJ40CA

ModelSMBJ40CA-AT/TR13
PackageSMB(DO-214AA)
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 SMBJ40CA-AT / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMBJ40CA-AT/TR13
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.196g
Electronic Component
1
Electronic Component
BM0264881714
Voltage
64.5V
Current(Ir)
1uA
Voltage(VBR)
44.4V
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.

SMBJ40CA-AT/TR13 TVS二极管产品概述

SMBJ40CA-AT/TR13是台湾君耀电子(Brightking)推出的双向瞬态抑制二极管(TVS),专为低压电路的瞬态过压防护设计,采用SMB(DO-214AA)贴片封装,具备高可靠性、小体积等特点,广泛应用于消费电子、工业控制、通信接口等领域。

一、品牌与产品定位

Brightking(君耀电子)是台湾知名半导体厂商,专注过压保护器件研发20余年,产品以性能稳定、一致性好著称,服务全球电子制造业。SMBJ40CA-AT/TR13属于君耀SMBJ系列双向TVS典型型号,针对12V/24V电源系统、通信接口、消费电子端口的瞬态过压(雷击、静电放电ESD、电源浪涌)防护需求设计,可有效抑制脉冲对后级敏感电路的损坏。

二、核心电气参数详解

该型号TVS的关键参数直接决定防护能力,具体如下:

  1. 极性与工作电压:双向极性,无需区分正负极即可防护正负脉冲;反向截止电压(Vrwm)40V,电路正常工作(电压≤40V)时器件截止,漏电流极小,不影响电路运行。
  2. 击穿与钳位特性:反向击穿电压(Vbr)典型值44.4V(介于Vrwm与钳位电压之间),电压超Vbr时快速导通;峰值脉冲钳位电压(Vc)64.5V,将瞬态过压限制在安全范围,避免后级IC、传感器损坏。
  3. 脉冲承受能力:峰值脉冲电流(Ipp)9.3A,峰值脉冲功率(Ppp)600W,可承受8/20μs波形浪涌;反向漏电流(Ir)仅1μA,正常工作功耗极低,对电路性能无明显影响。

三、封装与物理特性

采用SMB(DO-214AA)贴片封装,物理特性如下:

  • 尺寸:约3.2mm×2.5mm×1.0mm,体积小巧,适配高密度PCB设计;
  • 封装材质:耐高温环氧树脂,无铅无卤,符合RoHS环保标准;
  • 焊接兼容:支持回流焊(260℃/10s)、波峰焊(260℃/5s),引脚镀锡,焊接可靠性高;
  • 温度范围:-55℃至+150℃,适应工业级及消费电子宽温环境。

四、典型应用场景

基于参数特性,适用于以下场景:

  1. 电源系统防护:12V/24V直流电源输出端、笔记本/平板充电端口的浪涌防护,抑制雷击或开关浪涌;
  2. 通信接口防护:RS485、CAN总线、USB Type-C接口的双向过压防护,避免ESD或总线浪涌损坏接口芯片;
  3. 工业控制模块:PLC I/O模块、传感器信号端防护,适应工业电磁干扰与浪涌;
  4. 消费电子端口:智能手机充电口、耳机接口的ESD防护,提升产品抗静电能力。

五、关键性能优势

  1. 双向防护简化设计:无需区分正负极,直接并联被保护电路,降低设计复杂度;
  2. 快速响应:ns级响应时间(≤1ns),远快于压敏电阻(μs级),有效抑制快速瞬态脉冲;
  3. 低功耗高可靠性:1μA漏电流确保低功耗,600W脉冲功率可承受多次冲击,可靠性高;
  4. 小体积适配高密度:SMB封装适合自动化贴片,节省PCB空间,满足小型化设备需求。

六、使用注意事项

  1. 选型匹配:Vrwm(40V)需高于电路正常最大电压(如24V电路完全适配),避免误触发;
  2. 焊接控制:贴片焊接需控制温度时间,避免超封装耐受极限(如回流焊温度过高损坏器件);
  3. 并联扩容:单器件功率不足时可并联多个同型号,但需注意均流(匹配参数实现);
  4. 环境适应:确认应用温度在-55℃至+150℃内,极端温度需评估性能。

综上,SMBJ40CA-AT/TR13是性能稳定、适配性强的双向TVS,可有效解决低压电路瞬态过压防护问题,是消费电子、工业控制等领域的理想选择。

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