WMSIC Electronic Components

Brightking SMBJ170A/TR13 SMBJ170A

ModelSMBJ170A/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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SMBJ170A / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMBJ170A/TR13
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.218g
Electronic Component
1
Electronic Component
BM0264820939
Operating Temperature
65℃~+150℃
Voltage
275V
Current(Ir)
1uA
Voltage(VBR)
189V
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.

Brightking SMBJ170A/TR13 瞬态抑制二极管(TVS)产品概述

一、产品定位与核心类别

SMBJ170A/TR13是台湾君耀(Brightking)推出的单向瞬态抑制二极管(TVS),属于过压防护器件的核心品类。其设计目标是为电子电路提供快速、可靠的浪涌电压抑制,可有效抵御雷击、静电放电(ESD)、开关浪涌等瞬态过压对敏感元器件(如IC、MOS管、传感器)的损坏。作为SMB封装系列的典型产品,它兼顾了小体积、高防护能力与宽温适应性,适配多种小型化、高密度设计的电子设备。

二、关键参数深度解析

SMBJ170A/TR13的核心参数直接决定防护性能,关键指标解读如下:

  1. 反向截止电压(Vrwm=170V):电路正常工作时,TVS反向可承受的最大电压,需匹配被保护电路的工作电压范围(如170V以下的直流/交流电路),确保无额外功耗。
  2. 击穿电压(Vbr=189V):TVS开始导通的电压,比Vrwm高约10%,既保证正常工作时不导通,又能在过压时快速响应。
  3. 钳位电压(Vc=275V):峰值脉冲电流(Ipp)通过时,TVS两端的最大电压,需低于被保护器件的耐压值(如IC耐压≥275V),避免损坏。
  4. 峰值脉冲电流(Ipp=2.2A):在8/20μs浪涌波形下可承受的最大脉冲电流,反映瞬间载流能力。
  5. 峰值脉冲功率(Ppp=600W):TVS能吸收的最大浪涌能量(P=V×I),是判断防护能力的核心指标。
  6. 反向漏电流(Ir=1μA):正常工作时的反向漏电流,低漏电流意味着静态功耗极小,不影响电路效率。
  7. 工作温度范围(-65℃~+150℃):宽温设计,适配工业级、车载级等高低温环境,拓展应用场景。

三、封装与品牌优势

  1. SMB封装(DO-214AA):表面贴装封装,尺寸紧凑(4.5×2.5×1.5mm),适合自动化贴片生产,节省PCB空间;封装散热性能较好,可有效 dissipate 脉冲能量。
  2. Brightking(君耀)品牌:台湾知名保护器件厂商,专注TVS、压敏电阻等领域数十年,产品通过ISO9001、AEC-Q101等认证,参数一致性好、可靠性高,广泛应用于通信、工业、汽车等行业。

四、典型应用场景

SMBJ170A/TR13因参数与封装优势,适用于以下场景:

  1. 通信设备:路由器、交换机、光模块的电源/信号接口,抵御雷击或开关浪涌。
  2. 工业控制:PLC、传感器、变频器的电源/信号回路,适应工业现场高低温与浪涌环境。
  3. 消费电子:高端充电器、笔记本电源模块,防止充电过程中的浪涌损坏。
  4. 车载电子:部分车载辅助电路(如后视镜、中控低压电路),宽温设计满足车载环境要求。
  5. 电源模块:开关电源、DC-DC转换器输出端,抑制瞬态过压。

五、性能优势与选型注意事项

性能优势

  • 宽温适应性:-65℃+150℃范围,优于部分同类产品的-55℃+125℃,适配 harsh 环境;
  • 低漏电流:1μA反向漏电流,静态功耗低,不影响电路效率;
  • 品牌可靠性:君耀产品经过严格浪涌测试,批次一致性好,降低批量应用风险。

选型注意事项

  1. 电压匹配:Vrwm需≥电路正常工作电压(如120V电路需选Vrwm≥120V的TVS);
  2. 极性确认:单向TVS带色环端为阴极,接反会导致防护失效;
  3. 焊接规范:SMB封装焊接温度≤260℃(10秒内),避免损坏器件;
  4. 能量匹配:需根据电路浪涌能量选择Ppp,避免器件过载。

SMBJ170A/TR13凭借平衡的防护参数、小体积封装与宽温特性,成为120-150V电路过压防护的高性价比选择,广泛适配多行业应用需求。

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