WMSIC Electronic Components

TDD A7

ModelA7
PackageSOD-123FL
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 171405

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
TDD A7
Type
TDD
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TDD
Electronic Component
A7
Electronic Component
1
Package
SOD-123FL
Electronic Component
0.036g
Electronic Component
1
Electronic Component
BM0266040329
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.

TDD A7 1A/1kV高压整流二极管产品概述

一、产品核心定位与身份

TDD A7是台冠电子(TDD)推出的独立式高压整流二极管,针对小功率高压应用场景设计,核心覆盖「1A连续整流+1kV反向耐压」的性能区间,是替代传统高压硅堆、满足高密度PCB设计的优选器件。其定位清晰:兼顾低损耗、高可靠性与小型化封装,适配工业控制、消费电子、电源模块等多领域的高压整流/保护需求。

二、关键电气性能参数深度解析

A7的核心参数围绕「高压、小电流、低损耗」优化,关键指标如下:

1. 正向特性:低损耗适配效率需求

正向压降(Vf)为1.1V@1A,在1A连续工作电流下,单管正向损耗仅1.1W(功率=Vf×电流),远低于同电流等级普通硅整流管的损耗水平(部分同类产品Vf达1.3V以上)。该参数可有效降低系统发热,减少散热设计成本,适合对效率敏感的电源类应用。

2. 反向特性:高压下低漏电流保障可靠性

  • 直流反向耐压(Vr):1kV,提供充足的安全裕量(如应对电网波动、尖峰脉冲时,可承受3倍以上额定电压冲击);
  • 反向漏电流(Ir):5uA@1kV,仅为行业同类产品平均水平的1/2~1/3。低漏电流意味着反向截止时几乎无额外功耗,同时避免因漏电流累积导致的器件老化,延长系统寿命。

3. 电流能力:1A额定值满足主流小功率需求

额定整流电流(IF)为1A,支持连续工作在1A负载下,峰值电流(IFSM)可承受10A(25℃下),适配多数小功率电源、驱动电路的峰值负载场景。

三、封装设计与可靠性优势

A7采用SOD-123FL表面贴装封装,兼具「小型化」与「高可靠性」:

1. 紧凑尺寸适配高密度设计

SOD-123FL封装尺寸约为2.9mm×1.6mm×1.0mm,比传统DO-41插件封装小70%以上,可大幅节省PCB空间,适合便携式设备、小型模块电源等对体积敏感的应用。

2. 可靠性设计优化

  • 封装材料采用耐高温环氧树脂,结温范围覆盖**-55℃~150℃**,满足工业级环境温度要求;
  • 引脚采用镀锡工艺,焊接兼容性强,减少虚焊风险,适配自动化贴片生产线;
  • 封装内部采用玻璃钝化芯片结构,抗静电能力达2kV(人体模型),避免生产/使用中静电损坏。

四、典型应用场景梳理

A7的参数特性使其适配以下核心场景:

1. 小功率高压开关电源

如手机/平板适配器、LED驱动电源的高压整流环节(AC220V整流后直流电压约310V,A7的1kV耐压提供2倍以上裕量),低漏电流可降低待机功耗,符合节能标准。

2. 工业控制电路

  • 传感器信号隔离:阻断反向脉冲干扰,保护敏感元件;
  • 继电器驱动反向保护:抑制线圈断电时的反向电动势,避免电路损坏。

3. 消费电子高压模块

如小型臭氧发生器、高压离子发生器的整流电路,1kV耐压可应对模块内部的高压尖峰,稳定输出直流高压。

4. 汽车电子辅助电路

(若满足车规级要求,可拓展至)车载胎压监测、倒车雷达的高压隔离环节,耐温范围覆盖汽车工作环境。

五、品牌与品质保障

台冠电子(TDD)是国内专注于半导体分立器件的制造商,拥有10余年二极管研发生产经验,产品覆盖整流、快恢复、肖特基等全系列。A7经过严格可靠性测试:

  • 高低温存储测试(-55℃~150℃,1000小时);
  • 温度循环测试(-55℃~125℃,500次);
  • 反向耐压老化测试(1kV,100小时);
    符合RoHS环保标准,无铅无卤,适配全球市场需求。

综上,TDD A7以「高压、低损耗、小型化」为核心优势,是小功率高压应用场景中替代传统器件的高性价比选择,可有效提升系统效率与可靠性。

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