WMSIC Electronic Components

MCC US1Q-TP US1Q

ModelUS1Q-TP
PackageSMA(DO-214AC)
BrandMCC
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
MCC US1Q-TP
Type
MCC
Minimum package
5000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MCC
Electronic Component
US1Q-TP
Electronic Component
1
Package
SMA(DO-214AC)
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.358g
Electronic Component
1
Electronic Component
BM0229973329
Current
1A
Diode
1
Current(Ir)
5uA@1200V
(Vf)
1.9V@1A
Electronic Component
50℃~+150℃
Electronic Component
Electronic Component
Electronic Component
5000

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

US1Q-TP 产品概述

US1Q-TP 是 MCC(美微科)推出的一款高压快恢复(高效率)二极管,采用 SMA(DO-214AC)封装,单只独立器件。凭借 1.2kV 的耐压能力、75ns 的反向恢复时间以及在 1A 工作电流条件下 1.9V 的正向压降,US1Q-TP 在高压整流、开关电源和功率变换领域具备良好的性能与可靠性。

一、主要电气参数与物理规格

  • 二极管形式:独立式单只二极管
  • 正向压降(Vf):1.9V @ 1A
  • 直流反向耐压(Vr):1200V (1.2kV)
  • 额定整流电流:1A(正向平均电流)
  • 反向电流(Ir):5 µA @ 1200V
  • 反向恢复时间(Trr):75 ns
  • 工作结温范围:-50°C ~ +150°C
  • 封装:SMA (DO-214AC)
    这些参数表明 US1Q-TP 在高电压、低至中等电流场合提供了较低的开关损耗和可控的反向漏电性能。

二、产品特点与技术优势

  • 高耐压能力:1.2kV 的反向耐压适用于高压整流和隔离侧高压回路,能够应对高压瞬态与稳态工作需求。
  • 快恢复性能:75ns 的反向恢复时间比传统慢恢复二极管显著减少开关损耗和电磁干扰(EMI),有利于提高开关转换效率。
  • 低漏电流:在满耐压(1200V)下反向电流仅 5µA,降低高压场合的待机功耗与热发热。
  • 紧凑封装:SMA(DO-214AC)封装兼顾了热阻和 PCB 布局便利性,便于批量生产和自动贴装工艺。

三、典型应用场景

  • 开关电源(SMPS)高压整流与保护电路
  • 高压整流器与滤波电路(如高压电源、偏置电源)
  • 逆变器和变频器中的高压端保护或回流整流
  • 工业电源、医疗与测试设备的 HV 保护、反向保护电路
  • 光伏并网设备或电池管理系统中需承受高反向电压的箝位/整流应用

四、设计与使用建议

  • 热管理与 PCB 布局:SMA 封装热阻较小但受限于焊盘与板上铜箔面积。为降低结温并保证长期可靠性,建议在焊盘处增加散热铜箔并采用多层板或热过孔增强散热路径。
  • 工作电流与脉冲能力:器件额定整流电流为 1A,短脉冲条件下仍需注意平均功耗与结温累积,建议对峰值电流进行限制并进行温度与电流的联合校核。
  • 抗高 dV/dt 与反复开关:虽然 Trr 为 75ns 属于快恢复范畴,但在高 dV/dt 或高频开关环境下仍可能产生较大的瞬态应力。必要时在电路中并联 RC 缓冲或选用适当的阻尼网络以降低过冲和振铃。
  • 反向漏电与高温:5µA 在 1200V 下为典型值,实际漏电会随结温上升而增加。长期高温工作会加速漏电与寿命退化,建议在系统设计中预留安全裕度并尽量控制器件结温在推荐范围内工作。
  • 焊接与可靠性:遵循推荐的回流焊工艺曲线,避免超时高温曝露。SMA 封装适合常规 SMT 贴片工艺,存储与潮湿敏感度按行业通用规范处理。

五、选型与替代考虑

在需要更低正向压降或更短反向恢复时间的场合,可以考虑肖特基管或超快恢复(UF)系列器件,但这些器件在耐压、漏电等方面的权衡需结合具体应用权衡。若系统对耐压要求低于 1.2kV,可选择封装或性能更优的替代型号以获得更低 Vf 或更短 Trr。

总结:US1Q-TP 以其 1.2kV 高耐压、75ns 快恢复特性和封装适配性,适合用于高压整流与开关场合,尤其在需要兼顾高压耐受与切换效率的应用中表现稳健。设计时应重视热管理、开关应力控制与结温限制,以确保长期稳定运行。

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