WMSIC Electronic Components

BORN SS56 SMA

ModelSS56 SMA
PackageSMA
BrandBORN
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

19 specifications

Core information

Product name
BORN SS56 SMA
Type
BORN
Minimum package
5000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
SS56 SMA
Electronic Component
1
Package
SMA
Electronic Component
Schottky Diode
Electronic Component
0.196g
Electronic Component
1
Electronic Component
BM0229906785
Current
5A
Diode
1
Current(Ir)
1mA@60V
(Vf)
650mV@5A
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
5000

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

SS56 (SMA) 产品概述 — BORN(伯恩半导体)

一、产品简介

SS56 为 BORN(伯恩半导体)出品的肖特基整流二极管,SMA(表面贴装)封装,面向中高电流开关电源、整流与保护场合。其主要电气参数为:正向压降 Vf = 650 mV @ 5 A,直流反向耐压 Vr = 60 V,额定整流电流 If(AV) = 5 A,反向漏电流 Ir = 1 mA @ 60 V,工作结温范围 -55℃ ~ +150℃,非重复峰值浪涌电流 Ifsm = 100 A。

二、电气性能要点

  • 低正向压降:在 5 A 时 Vf ≈ 0.65 V,导通损耗较小(5 A 时约 3.25 W),有利于提高效率并降低发热。
  • 反向耐压与漏电:60 V 的耐压适用于多数 12 V/24 V 系统;反向漏电 1 mA@60 V 在高温时会显著上升,须评估静态漏电对系统的影响。
  • 冲击能力:Ifsm = 100 A(非重复峰值)可承受启动或短时浪涌,适合做整流、续流或浪涌吸收元件。

三、热性能与可靠性

  • 工作结温范围宽(-55℃ 至 +150℃),适应恶劣环境。
  • 实际连续输出电流取决于 PCB 散热与焊盘铜厚,SMA 封装热阻较大,若长期接近额定 5 A,需采用增强铜箔或散热措施以防结温超限。
  • 建议在高温或连续重载条件下适当降额使用(例如按 PCB 散热能力将连续电流设为 3–4 A 级别),并做热仿真或测温验证。

四、封装与安装提示

  • SMA 表面贴装形式,尺寸小,便于自动化贴装;管体一端有阴极带,应按照极性标记正确焊接。
  • 推荐遵循制造商的回流焊工艺规范,避免超温或长时间回流以保证可靠性。
  • 焊盘设计应增大铜面积并连接到散热层/地平面以提升热散能力;对浪涌较大场合可考虑旁路散热铜柱或加装散热片。

五、典型应用场景

  • 开关电源输出整流(特别是 12V/24V 档位)
  • 二极管保护回路、反向电压保护、续流二极管(功率开关管旁路)
  • 汽车电子、通讯电源、工业电源中的浪涌吸收与整流

六、使用注意事项

  • 评估反向漏电对待机功耗和温度漂移的影响,关键场合需注意漏电随温度上升而增加。
  • 避免在重复高能量浪涌中长期工作(Ifsm 为非重复峰值),频繁冲击会缩短器件寿命。
  • 在高电流应用中做好 PCB 散热与过流保护设计(熔断器或限流电路)。

七、选型与替代建议

  • SS56 以 5 A / 60 V / SMA 的规格为典型,选择时请同步查看 BORN 的完整数据手册,确认 Vf 的典型/最大值、热阻曲线与回流焊温度剖面。
  • 对于不同封装或更低漏电、高压或更高电流需求,可在同类肖特基系列中比较 Vf、Ir、Ifsm 与封装热阻后替换。选型时优先保证热裕量与漏电要求满足系统规范。

总结:BORN SS56(SMA)是一款适合中高电流整流与保护用途的肖特基二极管,低正向压降与较高浪涌能力是其优势。但在长期高电流或高温工况下需重视散热与降额设计,以保证可靠性与寿命。

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