WMSIC Electronic Components

MDD TTR8MF

ModelTTR8MF
PackageTTF
BrandMDD
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
MDD TTR8MF
Type
MDD
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MDD
Electronic Component
TTR8MF
Electronic Component
1
Package
TTF
Type
Electronic Component
Electronic Component
Bridge Rectifier
Electronic Component
0.572g
Electronic Component
1
Electronic Component
BM0230826827
Current
8A
Current(Ir)
150nA@1kV
(Vf)
950mV@4A
Electronic Component
55℃~+150℃
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.

TTR8MF — MDD 单相整流桥产品概述

一、产品简介

TTR8MF 是 MDD 推出的一款高压整流桥,面向高电压、高电流的直流整流场景。器件为单相整流桥封装(TTF),额定直流整流电流 8A,最高直流反向耐压 1kV,适用于工业电源、高压直流供电与高压整流链路等应用。器件工作结温范围宽(-55℃ ~ +150℃),具有良好的耐冲击能力和低反向泄漏特性,便于在苛刻环境中长期可靠工作。

二、主要规格(典型/参考)

  • 型号:TTR8MF(品牌:MDD,封装:TTF)
  • 功能类型:单相整流桥
  • 直流反向耐压 VR: 1 kV
  • 额定整流电流 I(DAV):8 A
  • 正向压降 Vf:典型 0.95 V @ 4 A(按出厂标注,最大值约可达 1.1 V@4A,具体以厂商数据为准)
  • 反向电流 Ir:典型 150 nA @ 1 kV,描述中可见最大值 ≤ 1 μA@1 kV(与批次和温度相关)
  • 非重复峰值浪涌电流 Ifsm:350 A(单次浪涌能力)
  • 工作结温范围:-55 ℃ ~ +150 ℃

注:上述数值为器件典型/参考参数,设计时请以最新官方数据手册为准并考虑温度与工况的影响。

三、器件特点与优势

  • 高电压等级:1 kV 反向耐压,满足高压整流与高压电源设计需求。
  • 低泄漏电流:在高耐压条件下仍保持较低的反向漏电,有利于降低空载损耗与提高系统稳定性。
  • 大电流能力:额定整流电流 8 A,配合 350 A 的浪涌能力,适用于启动冲击或短时大电流情形。
  • 宽温工作范围:-55℃ 至 +150℃,适合工业级及严苛环境应用。
  • 封装便于安装:TTF 封装适合通过散热片或PCB散热方案进行热管理(具体封装尺寸请参照厂家封装图纸)。

四、应用场景

  • 高压直流电源与整流模块:工业电源、试验台、高压稳压电源等。
  • 开关电源的高压整流端:高压输入整流桥、桥式整流模块。
  • 电池充电与充电站:需要高压整流与较大充电电流的场合。
  • 工业控制与测试设备:高压测量、实验室电源、加速器等应用。
  • 其他需要高耐压、低泄漏、较大整流电流的场景。

五、热设计与使用建议

  • 功耗估算:在典型工况下,桥式整流的平均功耗约为 P ≈ 2 × Vf × I(D),举例而言,若输出直流电流为 8 A,采用 Vf ≈ 0.95 V,则整桥功耗约为 2 × 0.95 V × 8 A ≈ 15.2 W(实际 Vf 随电流和温度变化,设计时应留余量)。
  • 散热措施:鉴于较高功耗,推荐使用合适的散热片、导热垫或强制风冷,并确保良好热阻路径以维持结温在安全范围内。必要时在 PCB 上配置大面积铜箔或热沉挂载。
  • 过载与浪涌保护:尽管 Ifsm 可达 350 A,但长期或重复冲击会影响寿命。应配合限流、保险丝或浪涌抑制元件以保护器件。
  • 环境与寿命:高温会显著增加正向压降与反向漏电,长期高结温会加速老化。建议对结温进行温度系数评估并适度降额使用(例如在高环境温下降低允许的平均电流)。

六、选型与注意事项

  • 若应用对开关速度或恢复性能有严格要求(高速整流、软开关等),建议评估器件的反向恢复特性或考虑快恢复/肖特基器件;TTR8MF 更适合主打耐压与整流电流的场合。
  • 在高电压设计中,PCB 布局要注意爬电距离与绝缘处理,保持足够的间距与绝缘材料等级,防止击穿或表面泄露。
  • 封装信息与安装孔位、引脚排列请参照厂方机械图纸,焊接与热循环可靠性也需按照厂方推荐的回流/波峰焊工艺执行。

七、总结

TTR8MF 是一款面向高压大电流整流的工业级桥式整流器件,结合 1 kV 的耐压、8 A 的整流能力与低泄漏特性,适合在高压电源、工业整流与试验设备等场合使用。设计时应重视热管理与浪涌保护,并参考厂商数据手册进行精确计算和可靠性评估,以获得长期稳定的使用表现。若需更详细的电气特性曲线、封装图或应用示例,建议索取最新的官方数据手册和应用笔记。

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