WMSIC Electronic Components

Jingdao Microelectronics ULBF810

ModelULBF810
PackageULBF
BrandElectronic
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
Electronic ULBF810
Type
ULBF
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
ULBF810
Electronic Component
1
Package
ULBF
Type
Electronic Component
Electronic Component
Bridge Rectifier
Electronic Component
0.377g
Electronic Component
1
Electronic Component
BM0227566771
Current
8A
Current(Ir)
5uA@1000V
(Vf)
1V@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.

ULBF810 产品概述

一、概述

ULBF810 是晶导微电子推出的一款单相整流桥,专为高压、高电流整流应用设计。器件具有高耐压(Vr = 1000V)、低正向压降(Vf = 1.0V @ 4A)、高浪涌承受能力(Ifsm = 350A)和极低的反向漏电流(Ir = 5µA @ 1000V),典型整流电流为 8A。器件工作结温范围宽 (-55℃ ~ +150℃),适应恶劣环境与工业级应用需求,封装为 ULBF,便于系统集成与散热管理。

二、主要特点

  • 额定重复反向耐压(Vr):1000V,适用于高压交流整流与中高压直流支路。
  • 正向压降(Vf):1.0V @ 4A,降低整流损耗、提升效率。
  • 非重复峰值浪涌电流(Ifsm):350A,具备良好的冲击电流承受能力,适合启动或短时过载场景。
  • 直流反向电流(Ir):5µA @ 1000V,漏电小,有利于高压回路的静态功耗控制。
  • 额定整流电流:8A,满足中等功率整流需求。
  • 宽工作结温:-55℃ ~ +150℃,适合高温工作环境并具备较高的可靠性裕度。

三、典型应用场景

  • 开关电源(SMPS)整流输出或高压辅助整流;
  • 工业设备的交流到直流整流,如电机驱动、控制柜电源;
  • 充电器、适配器及消费类高压电源;
  • 光伏逆变器/微逆系统中的直流环节;
  • 其他需要高压、小漏电、低压降的整流场合。

四、封装与热管理建议

ULBF 封装设计兼顾尺寸与散热,实际散热性能受 PCB 走线和散热片设计影响较大。使用建议:

  • 在连续 8A 工作条件下,应通过加大铜箔面积、增加热贯通孔或外接散热片来改善热阻,确保结温控制在可靠范围内;
  • 对于间歇高峰或频繁浪涌场合,检查 Ifsm 与系统峰值电流匹配,必要时采用并联或增加限流元件;
  • 推荐在器件附近布置较宽的散热铜区域,必要时采用热沉或风冷措施;
  • 设计时考虑结温与环境温度并做适当的电流降额,以延长器件寿命和提高可靠性。

五、使用注意事项

  • 反向漏电在高压下仍为关键参数,系统应考虑漏电对保护回路和静态功耗的影响;
  • 若用于高频开关场合,需关注反向恢复特性与电磁干扰(未在参数中给出反向恢复电流或时间),可通过 RC 景慕或缓冲网络降低应力;
  • 在并联使用多片器件时,应确保电流分配均匀,必要时使用小阻值均流电阻;
  • 储存与焊接过程中遵循厂商的湿度防静电与回流焊温度曲线建议,避免热损伤或焊接缺陷。

六、检验与品质控制

晶导微电子对 ULBF810 进行出厂电参数测试,典型合格项包括正向电压、反向漏电、浪涌承受及耐压测试。建议用户在批量使用前进行来料检验,重点关注:耐压、漏电和正向压降一致性,以及外观与封装引脚完整性。

七、选型与替代考虑

ULBF810 适合需要 1kV 等级耐压与中等电流(8A)整流的场合。若系统需更低正向压降或更高连续电流,可考虑低 Vf 的肖特基整流器或更大电流等级的桥式整流器;若需更低反向恢复造成的开关损耗,应考察快速恢复或超快恢复二极管的参数并与设计频率匹配。

如需进一步的电气参数曲线、典型应用电路图或封装尺寸图,可联系晶导微电子获取器件数据手册与样片支持。

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