WMSIC Electronic Components

Jingdao Microelectronics SS510B

ModelSS510B
PackageSMB(DO-214AA)
BrandElectronic
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
Electronic SS510B
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
SS510B
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Schottky Diode
Electronic Component
0.21g
Electronic Component
1
Electronic Component
BM0226519629
Current
5A
Diode
1
(Vf)
850mV@5A
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
3000
Voltage Rating(Vr)
100V

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

SS510B 肖特基二极管产品概述

一、产品简介

SS510B 是晶导微电子推出的一款高可靠性肖特基整流二极管,采用 SMB (DO-214AA) 封装,专为中等功率整流和保护电路设计。器件具有低正向压降、快速恢复特性和良好的冲击耐受能力,适用于电源整流、续流保护、极性保护及各种开关电源应用。标准工作结温范围为 -55℃ 至 +150℃,可在宽温区间内稳定工作。

主要电气参数一览:

  • 直流整流电流(Io):5 A
  • 直流反向耐压(Vr):100 V
  • 正向压降(Vf):0.85 V @ 5 A
  • 非重复峰值浪涌电流(Ifsm):150 A(冲击脉冲条件下,详见产品规格书)
  • 工作结温(Tj):-55℃ ~ +150℃
  • 封装:SMB (DO-214AA)
  • 品牌:晶导微电子

二、主要特点与优势

  1. 低正向压降:在大电流工作状态下 Vf ≈ 0.85 V(5 A),降低导通损耗,提高整机能效,特别适用于需要高效率的电源系统。
  2. 良好的浪涌承受能力:Ifsm 高达 150 A,使器件在启动、短路或过载瞬态时具有更好的鲁棒性。
  3. 宽温度范围:-55℃ ~ +150℃ 的工作结温允许器件在苛刻环境中长期工作,满足工业与汽车类应用的温度要求(具体应用需参照差额试验认证)。
  4. SMB 封装:便于自动化贴装和回流焊接,同时具有较好的散热能力和机械强度,适合中等功率密度的 PCB 布局。
  5. 快速开关特性:肖特基势垒使其在高频开关环境下产生较小的开关损耗,适合开关电源与 DC-DC 转换器中的整流或续流使用。

三、典型应用场景

  • 开关电源(SMPS)输出整流与输出滤波保护
  • DC-DC 转换器的续流/肖特基整流
  • 电池充放电保护与极性反接保护
  • 太阳能逆变器与光伏微型逆变系统(作为旁路整流/保护器件)
  • 电机驱动电路中的整流与续流保护
  • 汽车电子与工业控制系统中的高可靠性整流

四、布局与热管理建议

  1. 散热考虑:尽管 SMB 封装具有一定的热扩散能力,但在 5 A 等持续整流条件下仍会产生显著功耗(P = Vf × I)。建议在 PCB 上采用较大铜箔面积连接二极管的电极,必要时在焊盘下方添加热过孔(thermal vias)以引导热量到背板或内层铜箔。
  2. 焊盘与丝印:按照 SMB 封装的推荐焊盘尺寸布局,保证焊点可靠性与热阻最小化。避免在焊盘与敏感元件之间布置窄走线,防止过热。
  3. 回流焊:采用标准无铅回流工艺,按照 JEDEC/IPC 建议的回流曲线进行焊接。高温回流时需注意器件的最大耐温限制与焊接次数累积效应。
  4. 降额使用:在高环境温度或散热受限条件下,应对连续整流电流进行降额处理。为保证长期可靠性,请参考产品数据手册中的 I-T 降额曲线和结温极限。

五、可靠性与测试建议

SS510B 已针对常见应力条件进行电气与热循环测试,但在实际应用中仍建议客户进行必要的验证:

  • 功率循环与热冲击测试:验证在目标散热布局下的结温稳定性和焊点可靠性。
  • 冲击与振动测试:若应用于汽车或工业环境,需进一步做机械可靠性评估。
  • 过载与短路保护:器件虽具较高浪涌能力,但频繁或超额浪涌会降低寿命,建议系统设计配合熔断器或限流保护电路。

六、封装与订购信息

  • 封装:SMB (DO-214AA),适合自动化贴装
  • 推荐型号:SS510B(请以晶导微电子最新产品目录和数据手册为准)
  • 合规性:一般符合无铅/RoHS 要求(具体合规与认证信息以出货资料为准)
  • 资料获取:订购或设计前强烈建议下载并参照晶导微电子官方的 SS510B 数据手册,获取完整的电气参数、典型特性曲线和封装尺寸图。

总结:SS510B 是一款面向中等功率整流和保护的高可靠性肖特基二极管,具有低 Vf、良好浪涌性能与广泛的工作温度范围。合理的 PCB 布局与热管理能显著提升其长期性能与可靠性,适用于开关电源、DC-DC 转换器、续流保护及各种工业与汽车电子场景。若需完整参数或应用电路建议,请参考晶导微电子提供的产品数据手册或联系技术支持。

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