WMSIC Electronic Components

PANJIT UF808_T0_00001

ModelUF808_T0_00001
PackageTO-220AC
BrandPANJIT
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
PANJIT UF808_T0_00001
Type
PANJIT
Minimum package
1000 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PANJIT
Electronic Component
UF808_T0_00001
Electronic Component
1
Package
TO-220AC
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
2.76g
Electronic Component
1
Electronic Component
BM0264549205
Current
8A
Diode
1
Current(Ir)
1uA@800V
(Vf)
1.7V@8A
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
1000

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

UF808_T0_00001 产品概述

一、产品概况

UF808_T0_00001 是强茂(PANJIT)生产的一款独立式快恢复/高效率整流二极管,采用 TO-220AC 封装,额定整流电流 8A,直流反向耐压 800V。该器件在高电压开关电源和功率电子系统中可提供较低的正向压降和快速的反向恢复特性,适用于需要兼顾效率与开关性能的应用场景。工作结温范围宽(-55℃ 至 +150℃),适合工业级应用。

二、主要特性

  • 器件类型:独立式二极管(单颗)
  • 品牌:PANJIT(强茂)
  • 封装:TO-220AC(适合通过散热片或螺栓固定)
  • 正向压降:Vf = 1.7V @ If = 8A(低压降有助于降低导通损耗)
  • 额定整流电流:8A(连续整流能力)
  • 直流反向耐压:Vr = 800V(高压阻断能力,适合高压电路)
  • 反向电流:Ir = 1µA @ Vr = 800V(低漏电流,降低待机损耗)
  • 反向恢复时间:Trr = 100ns(属快恢复类别,有利于开关损耗与电磁干扰控制)
  • 结温范围:Tj = -55℃ ~ +150℃(宽温区间,可靠性高)

三、电气参数要点(应用角度)

  • 低正向压降(1.7V@8A)意味着在整流和续流工况下导通损耗较小,有利于提高整机效率,尤其在大电流路径上更明显。
  • 800V 的反向耐压使其可用于中高电压开关电源、PFC 级、逆变器或电机驱动等场合,能承受较高的开关电压应力。
  • 100ns 的反向恢复时间属快恢复范畴,但仍需针对高频开关应用评估 Trr 对开关损耗及 dv/dt 造成的应力。对于非常高频(数百 kHz 以上)或对 EMI 极为敏感的设计,可能需要进一步的缓冲或采用超快恢复/肖特基器件。
  • 低反向漏电(1µA@800V)有利于提高系统的待机效率和稳定性,尤其在高压待机或脉冲工作模式下更有优势。

四、封装与热管理

  • TO-220AC 封装便于安装散热片或直接螺栓固定到机箱金属件,有利于散热管理。设计时应确保良好热接触和适当的导热膏/垫片。
  • 由于整流电流达 8A,实际结温受印制板热阻、散热片尺寸与空气流动影响,建议在高功率应用中配合计算结到外壳(RθJC)和结到环境(RθJA)并做热仿真/实测。
  • 在布局上应尽量缩短高电流回路的走线,减小寄生电感,降低瞬态过压和 EMI。

五、典型应用场景

  • 开关电源(SMPS)次级整流或高压整流桥
  • 功率因数校正(PFC)电路中的整流/续流元件
  • 逆变器输出整流或回馈回路
  • 不间断电源(UPS)整流与充电电路
  • 电机驱动的续流二极管与保护电路
  • 工业电源、高压电源和电焊机等需要高压、8A 等级整流的场合

六、使用与可靠性建议

  • 焊接与安装:TO-220 为通孔/引脚式封装,适用于手工焊或波峰焊,装配时应遵循常规焊接温度与时间规范,避免长时间高温以保护器件和封装。装配到散热片时,应确保表面清洁,使用适当导热硅脂或垫片以降低界面热阻。
  • 热设计:在连续大电流工作条件下,应保证足够的散热能力;必要时采用强制风冷或更大面积散热片,并预留热监控点以防过热。
  • 开关过冲与抑制:尽管 Trr 为 100ns,仍建议在高 dv/dt 场合评估是否需加 RC 吸收或合适的缓冲电路(如 Zener、TVS 或熔断元件)以抑制过压和降低 EMI。
  • 存储与环境:长期存储应避免潮湿、盐雾和强腐蚀性气体;在高温高湿环境下建议加防潮措施并遵循厂家存储建议。
  • 可靠性验证:对于关键系统,建议在目标应用的实际工作条件下进行热循环、寿命和电气应力测试,确认器件在系统内的长期稳定性。

如需完整电气特性曲线、封装尺寸图及更多可靠性数据,请参考强茂(PANJIT)官方规格书或联系供应商获取详细资料。

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