WMSIC Electronic Components

Brightking SMBJ40A/TR13 SMBJ40A

ModelSMBJ40A/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 SMBJ40A / TR13
Type
BRIGHTKING
Minimum package
3000

Technical parameters

Electronic Component
Brightking
Electronic Component
SMBJ40A/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
BM0230662626
Operating Temperature
65℃~+150℃
Voltage
64.5V
Current(Ir)
1uA
Voltage(VBR)
44.4V
Electronic Component
3000
Power(Ppp)
600W

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SMBJ40A/TR13 产品概述

一、产品简介

SMBJ40A/TR13 是台湾君耀(Brightking)出品的一款单向瞬态电压抑制器(TVS),封装为 SMB(DO-214AA)。器件用于吸收瞬态过电压、保护敏感半导体和线路免受雷击、静电放电或开关感应等瞬态冲击。该型号在40 V 反向工作电压下具有优秀的钳位能力和高脉冲能量承受能力,适合汽车电子、通信设备、电源模块及工业控制等场景。

二、主要电气参数

  • 极性:单向
  • 反向工作电压 (Vrwm):40 V
  • 击穿电压 (Vbr):44.4 V(典型/测试条件注明)
  • 钳位电压:64.5 V(在指定脉冲测试条件下)
  • 峰值脉冲电流 (Ipp):9.3 A
  • 峰值脉冲功率 (Ppp):600 W(10/1000 μs 波形或规格说明)
  • 反向电流 (Ir):1 μA(在 Vrwm 条件下)
  • 工作温度范围:-65 ℃ 至 +150 ℃
  • 封装:SMB (DO-214AA)
  • 类型:TVS(单向)
  • 品牌:Brightking(台湾君耀)

三、产品特性与优势

  • 高能量吸收:600 W 峰值脉冲功率和 9.3 A 峰值脉冲电流,可在短时冲击下有效钳制电压峰值,保护下游组件。
  • 低漏电:1 μA 反向电流在常温与 Vrwm 下保证系统静态功耗低,适合对待机功耗敏感的应用。
  • 宽温度范围:-65 ~ +150 ℃ 使其适合苛刻环境与高温工况。
  • 单向结构:易于在直流或单向信号线路中直接应用,避免双向器件带来的复杂性。
  • 标准封装:SMB 封装便于波峰/回流焊接与自动化贴装,适合集成化生产。

四、典型应用场景

  • 汽车电源总线保护(车载电子、ECU、传感器接口)
  • 通信设备的电源与信号端口防护(基站、电源模块)
  • 工业控制与自动化设备(PLC、驱动器接口)
  • 消费类电子的输入电源防护(适配器、充电桩外围)
  • 任何需在 40 V 等级防护并承受高能瞬态的电路场合

五、封装与布局建议

  • SMB(DO-214AA)封装具有较好的热散能力,建议在 PCB 上为器件提供热铜区域,缩短热阻并有利于脉冲能量分散。
  • 尽量将 TVS 近距离放置于被保护节点和接地之间,最短且最粗的走线可降低回路电感,提高抑制效率。
  • 对于高速信号线,应注意器件的等效电容和寄生电感对信号完整性的影响,如有必要选择并联补偿或在 PCB 布局中优化阻抗。

六、选型与可靠性注意事项

  • 确认系统最大连续工作电压低于 40 V(Vrwm),否则可能导致持续击穿或过热。
  • 钳位电压 64.5 V 在指定脉冲条件下测得,实际系统中若多次重复冲击,应考虑余量并评估散热与寿命。
  • 在高温或频繁冲击环境中,应评估长期可靠性并考虑冗余或外加保护措施。
  • 储存与回流焊温度须遵循厂商的包装与焊接工艺规范,以保证器件性能与寿命。

SMBJ40A/TR13 以其高能量吸收能力、低漏电和宽工作温度,适合对 40 V 级别瞬态抑制有较高要求的应用,是可靠的过压保护元件选择。若需详细的曲线图、测试条件或封装尺寸图,建议参考厂家数据手册以获取完整规范。

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