WMSIC Electronic Components

YANGJIE SMBJ30A

ModelSMBJ30A
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 26+

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
YANGJIE SMBJ30A
Type
DO-214AA(SMB)
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
SMBJ30A
Electronic Component
1
Package
DO-214AA(SMB)
Electronic Component
0.224g
Electronic Component
1
Electronic Component
BM0228973954
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.

SMBJ30A 产品概述

一、产品简介

SMBJ30A 是扬杰(YANGJIE)推出的一款单向瞬态电压抑制二极管(TVS),采用 SMB(DO-214AA)封装,专为抑制瞬态电压冲击和浪涌脉冲设计。器件在工作电压范围内具有极低泄漏电流和快速响应能力,适用于24V类工业与汽车电源保护、信号/电源防护等场合。

二、主要参数及含义

  • 极性:单向(适用于直流电源线路,需按极性正确安装)
  • 反向截止电压 Vrwm:30 V(正常工作电压上限)
  • 击穿电压 Vbr:36.8 V(开始进入击穿导通区域)
  • 钳位电压:48.4 V(在峰值脉冲电流时的电压上限)
  • 峰值脉冲电流 Ipp:12.4 A(测试波形 10/1000 μs)
  • 峰值脉冲功率 Ppp:600 W(测试波形 10/1000 μs)
  • 反向电流 Ir:≈5 μA(在 Vrwm 下的漏电流)
  • 工作温度范围:-55 ℃ 至 +150 ℃

三、关键性能优势

  • 强力浪涌吸收:600 W(10/1000 μs)能量容量,能有效钳制高能脉冲,保护后端器件。
  • 低漏电与稳定击穿:5 μA 级漏电流与 36.8 V 的击穿电压保证在长期工作下的稳定性与低功耗。
  • SMB 封装:适合自动化贴装、具有良好热扩散能力与可靠的机械强度。
  • 宽温工作:-55~+150 ℃ 满足工业级与部分车规级温度要求。

四、典型应用场景

  • 24 V 工业控制电源、PLC、传感器接口的浪涌保护;
  • 通信与基站设备直流母线保护;
  • 电机驱动、逆变器与电源模块的输入侧浪涌抑制;
  • 汽车电子辅助电路(非关键安全路径时建议配合其它保护元件)。

五、封装与使用建议

SMB(DO-214AA)为主流表面贴装型,推荐在靠近需保护端子处布置,尽量缩短走线与增加铜皮面积以提升散热。单向 TVS 安装时需注意极性标识(阴极条朝向电源负端/地),以保证在正向/反向瞬态时正确钳位。

六、可靠性与注意事项

  • 在选型时应根据系统可能出现的最大冲击能量和允许钳位电压来确认是否满足保护需求;若系统能量更高,建议并联或选用更高功率等级的 TVS。
  • 频繁的大能量冲击会降低器件寿命;对关键系统建议做级联保护(熔断器+TVS)。
  • 焊接过程遵循厂商推荐的回流曲线,避免过高温度或长时间热暴露。

如需样片、完整数据手册或跌落/浪涌试验数据,可进一步提供型号与批次,以便获取详细电气特性曲线与封装尺寸图。

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