WMSIC Electronic Components

YANGJIE SS34BQ

ModelSS34BQ
PackageSMB(DO-214AA)
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 SS34BQ
Type
SMB(DO-214AA)
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
SS34BQ
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
0.2g
Electronic Component
1
Electronic Component
BM0264745525
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.

SS34BQ 产品概述

一、产品简介

SS34BQ 为 YANGJIE(扬杰)推出的独立式肖特基整流二极管,封装为 SMB (DO-214AA)。该器件采用肖特基结构,具备低正向压降与快速恢复特性,适用于中等功率的整流、续流和反向保护场合。典型工作范围宽,可靠性高,适合批量生产与工业级应用。

二、主要参数与特性

  • 器件类型:肖特基二极管(独立式)
  • 正向压降:Vf ≈ 480 mV @ If = 3 A
  • 反向耐压:Vr = 40 V(直流反向耐压)
  • 整流电流:Io = 3 A(平均整流电流)
  • 反向电流:Ir ≈ 15 μA @ Vr = 40 V
  • 峰值浪涌电流:Ifsm = 80 A(非重复峰值)
  • 工作结温:Tj = -55 ℃ ~ +150 ℃
  • 封装:SMB (DO-214AA)

主要特性包括低正向压降、较小的反向漏电、良好的冲击电流承受能力以及肖特基二极管固有的快速恢复性能。

三、典型应用场景

  • 开关电源整流与续流二极管(DC-DC、AC-DC)
  • 电池充放电管理与反向保护电路
  • 电源适配器、车载电源与工业电源模块(40 V 以内)
  • LED 驱动、逆变器输出整流与浪涌保护
  • 快速开关场合的整流与钳位应用

四、封装与散热建议

SMB(DO-214AA)为中等功率表面贴装封装,建议在 PCB 设计时:

  • 在二极管焊盘下及周边预留较大的铜箔散热区(下层大铜地/电源层)以降低结温;必要时通过多盏通孔(vias)连通散热层。
  • 为保证额定 3 A 持续整流能力,应根据实际工作环境对电流进行热重负载降额(随环境温度上升适当降低允许电流)。
  • 严格按照厂家推荐的焊盘尺寸与回流曲线(参考 J-STD-020)进行回流焊接,避免长时间超温。

五、可靠性与使用注意事项

  • 禁止在超过 40 V 反向电压下长时间工作,以避免反向击穿与漏电剧增。
  • 在冲击或浪涌较频繁的场合,需考虑等效电路中的浪涌吸收或滤波措施,防止多次 Ifsm 事件削弱器件寿命。
  • 高温环境中反向漏电与正向压降会随温度上升,PCB 热设计和合理的环境散热对稳定性能至关重要。
  • 储存与装配时避免强酸、强碱及污染物接触,遵循常规静电防护措施(ESD)和湿热敏元件处理规范。

如需进一步的电气特性曲线、热阻参数或封装尺寸图,请参阅厂商完整数据手册以获得设计级的详细参数与推荐焊盘。

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