WMSIC Electronic Components

SHIKUES SS14FL

ModelSS14FL
PackageSMAF
BrandSHIKUES
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
SHIKUES SS14FL
Type
SHIKUES
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SHIKUES
Electronic Component
SS14FL
Electronic Component
1
Package
SMAF
Electronic Component
Schottky Diode
Electronic Component
0.053g
Electronic Component
1
Electronic Component
BM0209242446
Current
1A
Diode
Electronic Component
Current(Ir)
200uA@40V
(Vf)
450mV@1A
Electronic Component
55℃~+125℃
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.

SS14FL 肖特基二极管(SHIKUES 时科)产品概述

一、产品简介

SS14FL 是 SHIKUES(时科)生产的独立式肖特基整流二极管,采用 SMAF 封装,面向中低压、1A 等级的整流与保护应用。器件具有较低的正向压降与快速响应特性,适合开关电源输出整流、功率路径选择、反向保护及保护箝位等场景。

二、主要电气参数

  • 型号:SS14FL(品牌:SHIKUES / 时科)
  • 封装:SMAF(独立式)
  • 直流整流电流:1A(平均整流电流)
  • 直流反向耐压(Vr):40V
  • 正向压降(Vf):0.45V @ 1A
  • 反向漏电流(Ir):200µA @ 40V(环境温度相关,上升温度会显著增加)
  • 非重复峰值浪涌电流(Ifsm):40A(瞬态脉冲能力,用于评估浪涌承受能力)
  • 工作结温范围:-55℃ ~ +125℃

三、主要特性与优势

  • 低正向压降:0.45V@1A 可减少导通损耗,提高转换效率并降低发热。
  • 快速响应、低储存电荷:肖特基结结构使器件无传统 PN 结的大量反向恢复,适合高频开关场合。
  • 紧凑封装:SMAF 体积小,适合空间受限的电路板设计与表面贴装工艺。
  • 良好的浪涌承受能力:40A 非重复峰值浪涌可应对突发冲击电流(如上电突波或短时瞬态)。
  • 宽温度范围:-55℃ 至 +125℃ 满足工业级温度要求。

四、典型应用场景

  • 开关电源输出整流(低压输出)
  • 反向保护与电源路径切换(例如电池与外部电源自动切换)
  • 二次侧整流、续流二极管(同步整流替代)
  • 保护与箝位电路(抑制瞬态过压)
  • 汽车与工业电子中低压子系统(注意环境温升对漏电流的影响)

五、封装与热管理建议

  • SMAF 封装热阻相对较高,长时间1A 工作时需关注焊盘铜箔面积以提升散热能力;在高环境温度下建议增加散热铜层或将电流降额。
  • PCB 布线时应尽量增大金属填充区并优化热过孔布局,以降低结温并提升可靠性。
  • 浪涌应用中请考虑脉冲频率与平均功耗,避免在高频或高占空比下长期超出推荐热设计点。

六、使用注意事项

  • 反向漏电随温度上升显著增加:在高温环境或对漏电敏感的电路中需评估 200µA@40V 的典型漏电对电路的影响。
  • 在并联使用时注意一致性:肖特基二极管的 Vf 与温度系数使并联不易均流,需采取限流或平衡设计。
  • 浪涌规范:Ifsm 为非重复峰值浪涌能力,对于重复冲击或长脉冲场景应参考更严格的热冲击与平均功耗限制。

七、可靠性与检验

  • 建议在关键应用进行温升测试、长期稳态电流老化与瞬态浪涌试验,以验证在目标工况下的寿命与失效率。
  • 在高湿或腐蚀性环境下,注意封装表面应力与焊点可靠性,必要时选择适当的表面涂层或封装保护工艺。

八、选型与采购参考

  • 型号标识:SS14FL(请与供应商确认具体的标贴与批次信息)
  • 包装形式:SMAF 单体封装,可按需选择散装或卷带包装以适配自动贴装。
  • 选型提示:当工作电压或漏电限制更高时,可考虑更高 Vr 或更低 Ir 的型号;当电流或散热受限时,可选更大封装或并联器件并做热设计。

总结:SS14FL(SHIKUES 时科)是一款面向 1A 级别的低压肖特基整流二极管,凭借低 Vf、快速特性与良好的瞬态浪涌能力,适用于多种功率整流与保护场合。设计时应重点关注封装散热与高温下的反向漏电特性,以保证长期稳定运行。

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