WMSIC Electronic Components

YANGJIE SMBJ100A

ModelSMBJ100A
PackageDO-214AA(SMB)
BrandYANGJIE
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

13 specifications

Core information

Product name
YANGJIE SMBJ100A
Type
DO-214AA(SMB)
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
SMBJ100A
Electronic Component
1
Package
DO-214AA(SMB)
Electronic Component
0.223g
Electronic Component
1
Electronic Component
BM0231132705
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.

SMBJ100A 产品概述

为便于快速了解该器件性能,下面对 YANGJIE(扬杰)SMBJ100A 做出简明、实用的技术与应用说明。需要说明的是,尽管源资料中出现“普通三极管”字样,但本件实为单向 TVS(瞬态电压抑制)二极管,用于吸收浪涌与瞬态过电压,保护敏感电路。

一、产品简介

SMBJ100A 是一款单向 TVS 抑制器,封装为 SMB(DO-214AA)。其标称反向截止电压(工作稳压 Vrwm)为 100V,击穿电压(Vbr)约为 123V,钳位电压在标准测试条件下为 162V。该器件针对脉冲性过电压(如雷击、开关瞬变、负载断开引起的浪涌)提供快速钳位与能量吸收能力。

二、主要参数(关键规格)

  • 极性:单向
  • 反向截止电压 Vrwm:100 V
  • 击穿电压 Vbr:123 V
  • 钳位电压 Vc:162 V(测试条件:10/1000 µs 波形)
  • 峰值脉冲电流 Ipp:3.7 A @ 10/1000 µs
  • 峰值脉冲功率 Ppp:600 W @ 10/1000 µs
  • 反向电流 Ir:5 µA(通常在 Vrwm 下测得)
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 封装:SMB (DO-214AA)
  • 类型:TVS(瞬态抑制二极管)

三、性能亮点与解读

  • 高能量吸收:Ppp=600 W(10/1000 µs)表明在常见工业脉冲波形下具有良好的一次吸能能力,配合 Ipp=3.7 A 能够抑制短时大幅电压尖峰。
  • 低泄漏电流:Ir=5 µA 在 Vrwm 下属于较低水平,有利于降低待保护电路的静态功耗。
  • 宽温区可靠性:-55℃ 到 +150℃ 的温区满足工业级甚至部分汽车级温控要求(最终是否满足汽车A级需参照厂方 AEC-Q 要求)。
  • SMB 封装利于 PCB 安装并具备较好的热散能力,适合中功率电路板布局。

四、典型应用场景

  • 工业控制系统的电源与信号线防护(24V/48V/直流母线的浪涌抑制)。
  • 通信/网络设备中接口保护(串口、以太网电源侧的过压保护,需与电路电压匹配)。
  • 配电和逆变器辅助保护电路、仪器仪表的输入端防雷和开关浪涌保护。
  • 任何需要在 100V 工作电压附近防止瞬态过压侵害的电子模块。

五、选型建议与使用注意事项

  • 电压匹配:Vrwm=100V,适用于系统正常电压低于该值且允许钳位电压 162V 的场合。若系统允许电压更低或更高,请选择相应 Vrwm 的型号。
  • 能量吸收与重复冲击:规格中的 Ppp、Ipp 是单次脉冲参考,若现场存在频繁冲击,应评估热累积与器件寿命,必要时并联或采用更高能量型号。
  • 布局建议:TVS 应尽可能靠近被保护端(例如接口或器件电源引脚)放置,走线最短最粗以降低串联阻抗和提升吸收效率。
  • 封装与焊接:SMB(DO-214AA)为标准贴片/引线封装,符合常规回流焊工艺。注意厂方对回流温度曲线的限制以避免损伤器件。
  • 兼容性检查:本件为单向器件,若电路需双向保护请选双向 TVS 或两只单向反向并联配置。

六、可靠性与测试要点

在投入量产前建议做以下验证:工作电压下的反向泄漏测试、钳位电压随热度与多次冲击的漂移测试、实际波形下的能量冲击试验(10/1000 µs 以及更短波形的 8/20 µs)、以及长期高低温循环可靠性试验。对于关键应用场合,还应评估瞬态后的残压对后级电路的影响。

七、总结

YANGJIE SMBJ100A 是一款面向中高电压防护的单向 TVS 器件,特点为 Vrwm=100V、钳位 162V、单次能量吸收高(600 W @10/1000 µs)、低泄漏及宽温域。适用于需要可靠抗浪涌保护的工业与通信场景。选型时应注意电压匹配、脉冲重复率以及 PCB 布局与焊接工艺,从而确保长期稳定工作。若需更详细的电气特性曲线或封装尺寸,请参照厂方完整数据手册。

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