WMSIC Electronic Components

TDD SS310

ModelSS310
PackageSMA
BrandTDD
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 Option 171428

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Technical data

Product details

13 specifications

Core information

Product name
TDD SS310
Type
TDD
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TDD
Electronic Component
SS310
Electronic Component
1
Package
SMA
Electronic Component
0.083g
Electronic Component
1
Electronic Component
BM0266040345
Electronic Component
Electronic Component
Electronic Component
2000

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

SS310肖特基整流二极管产品概述

一、产品定位与核心特性

SS310是台冠电子(TDD)推出的一款3A/100V肖特基整流二极管,采用SMA(DO-214AC)贴片封装,主打「小体积+低导通损耗+高电流密度」三大核心优势。区别于传统硅整流管,其正向压降(Vf)仅850mV@3A,可显著降低导通损耗;同时兼顾100V反向耐压与3A持续整流能力,适配多种中小功率整流/续流场景,是替代老旧硅管的高性价比方案。

二、关键参数深度解析

1. 正向导通特性

SS310的正向压降(Vf)在3A工作电流下仅为850mV——这一参数直接决定导通损耗:相同电流下,低Vf可减少功耗、降低发热,尤其适合开关电源等对效率敏感的应用。需注意:Vf随结温略有下降(结温每升10℃,Vf约降2mV),但仍保持在低损耗区间,不影响整体效率。

2. 反向阻断能力

  • 直流反向耐压(Vr):100V,满足大部分低压整流场景的反向电压需求(如AC-DC适配器次级整流);
  • 反向漏电流(Ir):300μA@100V,漏电流极小,反向截止时损耗低,且不易因漏电流导致器件长期发热。

3. 电流承载能力

  • 持续整流电流(IF):3A,可稳定支撑中小功率负载(如12V/2A电源输出);
  • 非重复峰值浪涌电流(IFSM):80A(持续时间≤8.3ms),能有效应对开机瞬间、负载突变产生的脉冲电流,提升系统可靠性。

4. 温度适用范围

工作结温覆盖**-55℃~+125℃**,符合工业级温度标准,可在极端环境(如车载-40℃高温、户外低温)下稳定工作,无需额外降额。

三、封装与可靠性设计

SS310采用SMA超小型贴片封装(尺寸约2.7×1.6×1.1mm),具备以下优势:

  • 空间效率:适配高密度PCB设计(如手机充电器、智能音箱),节省70%以上安装空间;
  • 贴装兼容性:表面贴装结构支持自动化产线,焊接效率高,无虚焊风险;
  • 环境可靠性:塑封工艺抗机械冲击、耐环境腐蚀,引脚设计优化,长期使用无脱落问题。

四、典型应用场景

SS310的参数特性使其在多领域广泛落地:

  1. 开关电源:AC-DC适配器(手机/笔记本充电器)的次级整流,或DC-DC转换器的续流二极管,利用低Vf提升转换效率(可使电源效率提升2%~3%);
  2. 车载电子:车载充电器、点烟器模块的整流,适配车载-40℃~+85℃的工作环境;
  3. 消费电子:智能家居设备(智能音箱、扫地机器人)的电源整流,小体积适配紧凑结构;
  4. 工业控制:小型PLC、传感器模块的信号整流/续流,宽温特性满足工业现场需求。

五、选型与使用注意事项

  1. 反向电压匹配:实际负载反向电压需低于100V(建议留20%裕量,避免接近极限);
  2. 电流裕量:持续负载电流建议不超过2.4A(3A×80%),防止长期满负载导致结温过高;
  3. 散热设计:SMA封装虽小巧,但3A电流下需增加PCB焊盘面积(建议≥5mm²)、靠近散热铜箔,避免结温超过125℃;
  4. 浪涌应对:若系统浪涌频繁超过80A,需串联TVS管或选择更高浪涌能力的型号(如SS3100)。

总结

SS310是一款平衡「效率、体积、可靠性」的中小功率肖特基整流二极管,尤其适合对功耗敏感、空间紧凑的应用场景,是台冠电子在低压整流领域的经典型号,可替代市场上同规格竞品(如SS310),具备高性价比优势。

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