WMSIC Electronic Components

Brightking SMBJ350CA/TR13 SMBJ350CA

ModelSMBJ350CA/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 SMBJ350CA / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMBJ350CA/TR13
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.198g
Electronic Component
1
Electronic Component
BM0264590346
Operating Temperature
65℃~+150℃
Voltage
567V
Current(Ir)
1uA
Voltage(VBR)
391V
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.

SMBJ350CA/TR13 TVS二极管产品概述

一、产品核心定位与品牌背景

SMBJ350CA/TR13是台湾君耀(Brightking) 推出的双向瞬态抑制二极管(TVS),属于SMBJ系列(DO-214AA封装)。该产品针对高电压电路的瞬态过压防护设计,核心优势是宽温适应性、双向无极性及稳定的过压钳位能力,广泛适配工业、通信、新能源等领域的中等功率浪涌防护场景。

二、关键电气参数详解

该产品的核心参数围绕“过压防护可靠性”设计,关键指标如下:

  • 极性:双向(无需区分正负极,简化电路布局,避免接线错误);
  • 反向截止电压(Vrwm):350V(正常工作时,TVS反向不导通的最大电压,确保电路稳定);
  • 击穿电压(Vbr):391V(反向电压达到此值时,TVS快速导通,启动过压防护);
  • 钳位电压(Vc):567V(峰值脉冲电流1.1A时,TVS两端的最大钳位电压,限制过压峰值不超过此值);
  • 峰值脉冲电流(Ipp):1.1A(单次8/20μs浪涌脉冲的最大泄放电流,对应600W脉冲功率);
  • 反向漏电流(Ir):1μA(Vrwm下的反向漏电流,低功耗,不影响电路正常工作);
  • 工作温度:-65℃~+150℃(宽温范围,适配极端环境下的工业设备)。

三、封装与物理特性

采用SMB(DO-214AA)表面贴装封装,具备以下物理优势:

  • 体积小巧:典型尺寸为3.5mm(长)×2.5mm(宽)×1.5mm(高),适合高密度PCB设计;
  • 引脚设计:2引脚双向无极性,兼容自动贴装工艺,提高生产效率;
  • 芯片工艺:玻璃钝化芯片结构,抗机械冲击、抗潮湿性能优异,长期可靠性高;
  • 封装材料:耐高温环氧树脂封装,适配回流焊等表面贴装流程。

四、典型应用场景

基于350V高耐压及双向特性,该产品主要应用于以下场景:

  1. 工业电源系统:AC/DC电源模块的高压侧浪涌防护(如220V/380V电源接口);
  2. 通信基站设备:射频模块、电源板的瞬态抑制(应对雷击、静电放电等干扰);
  3. 新能源领域:光伏逆变器、充电桩辅助电源的过压保护(适配高电压环境);
  4. 工业控制设备:PLC、传感器模块的电压浪涌防护(避免设备损坏);
  5. 医疗设备:符合EMC标准的关键电路防护(确保设备稳定运行)。

五、可靠性与环境适应性

该产品的可靠性设计满足工业级要求:

  • 宽温稳定性:-65℃~+150℃工作范围,可在户外、高温车间等极端环境下长期工作;
  • 脉冲耐受能力:多次浪涌冲击后性能衰减小(君耀专利工艺提升了芯片抗疲劳性);
  • 抗ESD能力:虽未明确标注,但SMB封装TVS通常可承受>15kV人体模型(HBM)静电放电;
  • 封装可靠性:气密性好,抗盐雾、抗振动(符合MIL-STD-202等可靠性标准)。

六、选型与应用注意事项

为确保防护效果,应用时需注意以下几点:

  1. 并联安装:TVS需并联在被保护电路两端(双向设计无需区分正负极);
  2. 功率匹配:根据电路最大浪涌功率选择(600W可应对多数中等功率浪涌);
  3. 保险丝配合:建议在TVS前串联适当容量保险丝,防止持续过压损坏TVS;
  4. PCB布局:尽量靠近被保护端口,减少引线电感(降低钳位电压尖峰);
  5. 温度降额:高温环境(>125℃)下需适当降额(如Vrwm降额至300V),避免性能衰减。

总结

SMBJ350CA/TR13凭借高耐压、双向无极性、宽温适应性等核心优势,成为工业、通信等领域高电压电路瞬态过压防护的可靠选择。其SMB封装小巧、易贴装,适配高密度PCB设计,可有效应对雷击、静电、浪涌等干扰,保障电路稳定运行。

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