WMSIC Electronic Components

TDD SS26

ModelSS26
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 171429

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
TDD SS26
Type
TDD
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TDD
Electronic Component
SS26
Electronic Component
1
Package
SMA
Electronic Component
0.086g
Electronic Component
1
Electronic Component
BM0266040368
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.

SS26整流二极管产品概述

一、产品核心定位

SS26是台冠电子(TDD)推出的表面贴装型单管整流二极管,针对中小功率电子设备的电源转换、续流及反向保护需求设计,兼具小体积、高电流承载、低导通损耗与宽温可靠性,是替代传统插件整流管的高性价比升级方案,广泛适配消费电子、工业控制、车载电子等领域。

二、关键性能参数解析

SS26的核心参数精准匹配中低压整流场景,具体如下:

  • 二极管配置:1个独立式单管封装,电路集成灵活,无需额外并联/串联;
  • 正向压降(Vf):700mV@2A(直流连续电流下),属于低损耗设计,相比传统硅整流管(典型Vf≥800mV@2A)可降低约12.5%的导通损耗,提升电源效率;
  • 直流反向耐压(Vr):60V,满足5V/12V/24V/36V等中低压系统的反向耐压需求,预留1.5倍以上余量应对电压波动;
  • 整流电流(If):2A(直流连续工作电流),可稳定承载2A负载,短期过载能力强;
  • 工作结温范围:-55℃+125℃,覆盖工业级(-40℃+85℃)与部分汽车级(-55℃~+125℃)温度场景,适应极端环境;
  • 非重复峰值浪涌电流(Ifsm):50A(典型值,对应8.3ms半周期脉冲),抗浪涌能力是连续电流的25倍,可有效应对开机瞬间、负载突变等浪涌冲击。

三、封装与可靠性设计

SS26采用SMA封装(DO-214AC),封装特性与可靠性优势显著:

  • 封装尺寸:约2.0mm×3.8mm×1.5mm(长×宽×高),体积仅为传统DO-15插件的1/3,适合高密度PCB布线(如手机充电器、小型电源模块);
  • 焊接可靠性:表面贴装设计,兼容回流焊、波峰焊工艺,焊盘附着力强,可避免插件焊接的虚焊问题;
  • 环保与认证:符合RoHS 2.0无铅环保标准,通过SGS等第三方认证,满足欧盟、北美市场准入要求;
  • 长期可靠性:采用高纯度硅片与环氧树脂封装,抗振动、抗湿热性能符合IEC 60747-5标准,平均无故障时间(MTBF)≥10^6小时。

四、典型应用场景

结合参数特性,SS26的核心应用场景包括:

  1. 中小功率开关电源:手机/平板充电器、笔记本电脑适配器、LED驱动电源(12V/24V输出端整流);
  2. 车载电子系统:12V车载音响、行车记录仪、胎压监测模块的电源整流、反向保护(防止电池反接损坏);
  3. 工业控制电路:PLC输入输出模块、传感器节点、小型变频器的续流二极管、电源滤波整流;
  4. 消费电子:机顶盒、路由器、智能音箱的5V电源转换电路;
  5. 电池充电电路:便携式充电宝、电动牙刷的充电整流、防过充反向截止。

五、选型与使用注意事项

为确保SS26稳定工作,需注意以下要点:

  • 耐压余量计算:实际工作反向电压需控制在40V以内(60V×0.66),避免过压击穿;
  • 散热设计:SMA封装散热面积有限,2A连续工作时需在焊盘下增加10mm²以上的散热铜箔,环境温度超过85℃时需降低负载电流至1.5A以内;
  • 浪涌防护:50A为非重复浪涌(仅允许1次脉冲),多次浪涌会累积热应力导致失效,建议配合TVS管做二次防护;
  • 焊接工艺:回流焊峰值温度≤260℃,时间≤10秒;波峰焊温度≤245℃,时间≤5秒,避免高温损坏封装;
  • 存储条件:未焊接器件需存储在温度-10℃~+40℃、湿度≤60%的环境中,开封后12个月内使用完毕。

六、产品优势总结

SS26凭借低损耗、小体积、宽温可靠、高性价比四大核心优势,成为中小功率整流场景的主流选择:相比同封装的其他品牌器件,其2A连续电流与50A浪涌能力领先,700mV低Vf可直接提升电源效率1-2%,适合对成本与性能均有要求的批量应用。

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