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JUXING US1MF
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- JUXING US1MF
- Type
- JUXING
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- JUXING
- Electronic Component
- US1MF
- Electronic Component
- 1
- Package
- SMAF
- Electronic Component
- Fast Recovery / High-Efficiency Diode
- Electronic Component
- 0.053g
- Electronic Component
- 1
- Electronic Component
- BM0265601731
- Current
- 1A
- Diode
- 1
- Current(Ir)
- 5uA@1kV
- (Vf)
- 1.65V@1A
- 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.
US1MF快恢复二极管产品概述
一、产品定位与核心应用场景
US1MF是JUXING（钜兴）推出的独立式快恢复/高效率二极管，针对中高频整流、开关电源等对反向恢复时间要求较高的场景设计，兼顾耐压、电流与效率平衡。其典型应用覆盖：
- 消费类电子：手机/平板充电器、笔记本电源适配器的次级整流；
- 工业控制：小型PLC电源、伺服驱动器辅助电源；
- 新能源领域：小功率光伏逆变器、LED路灯驱动电源的整流环节；
- 通信设备：路由器、交换机的低功耗电源模块。
这些场景的共同需求是高频开关下低损耗、中高压耐受、小体积集成，US1MF的参数匹配度较高。
二、关键性能参数深度解析
US1MF的核心参数围绕“快恢复+高效率”设计，关键指标及实际意义如下：
参数 数值 实际价值 整流电流（直流） 1A 连续工作最大电流，满足小功率电源（如5V/2A适配器）的整流需求 直流反向耐压 1kV 可耐受220V/380V系统的整流浪涌（留20%余量后仍可覆盖800V以内工作电压） 正向压降（Vf） 1.65V@1A 比普通硅整流管（如1N4007）低约10%，1A负载下损耗仅1.65W，提升电源效率 反向恢复时间（Trr） 75ns 高频特性核心，支持100kHz以上开关频率，减少EMI干扰与开关损耗 反向漏电流（Ir） 5uA@1kV 漏电流极小，待机损耗低，延长产品寿命（尤其适合低功耗设备） 工作结温范围 -55℃~+150℃ 宽温适应，可用于户外低温（北方冬季）或工业高温环境（电机控制柜）三、SMAF封装设计优势
US1MF采用SMAF表面贴装封装，符合行业标准，具备以下实用优势：
- 小型化：封装尺寸紧凑（约2.0×2.5×1.0mm），适合手机充电器、小型电源模块等高密度PCB设计；
- 散热性：底部焊盘与PCB铜箔直接接触，散热路径短，可有效降低结温（避免过热失效）；
- 贴装效率：兼容自动化SMT生产线，焊接温度（回流焊260℃/10s、波峰焊240℃/5s）符合常规工艺要求；
- 可靠性：环氧树脂封装抗机械应力与环境腐蚀，适合批量生产中的运输与长期使用。
四、典型应用电路参考
以反激式开关电源次级整流（输出5V/2A）为例：
- 电路结构：初级MOS管开关→次级绕组→US1MF整流→滤波电容输出5V；
- 优势体现：75ns反向恢复时间减少开关管损耗，提升电源效率（约2%-3%）；1kV耐压应对绕组感应浪涌（开关关断时的尖峰电压）；
- 辅助措施：并联1N4148或TVS管抑制尖峰，避免超过1kV反向耐压。
另一个场景是LED驱动电源整流（输出30V/300mA）：
- US1MF的1A电流余量充足，1.65V低压降减少电源损耗，宽温范围适应户外LED路灯的温度变化（-40℃~+85℃）。
五、选型与使用注意事项
- 电流限制：连续工作电流≤1A，峰值浪涌电流≤5A（SMAF封装常规峰值）；
- 电压余量：反向工作电压建议≤800V（留20%余量应对浪涌）；
- 结温控制：PCB焊盘周围铺10mm²以上铜箔，避免结温超过150℃；
- 焊接工艺：回流焊温度≤260℃，焊接时间≤10s，避免损坏芯片；
- 储存条件：未开封产品存于-40℃~+85℃、湿度≤60%环境，开封后12个月内使用完毕。
总结
US1MF是一款性价比突出的快恢复二极管，兼顾高频性能、效率与可靠性，适合中高频、小功率、中高压的整流场景，是消费电子、工业控制等领域的常用选型。
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