WMSIC Electronic Components

JUXING FR307

ModelFR307
PackageDO-27
BrandJUXING
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
JUXING FR307
Type
JUXING
Minimum package
1250 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JUXING
Electronic Component
FR307
Electronic Component
1
Package
DO-27
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
1.089g
Electronic Component
1
Electronic Component
BM0265601742
Current
3A
Diode
1
Current(Ir)
10uA
(Vf)
1.3V
Electronic Component
55℃~+125℃
Electronic Component
Electronic Component
Electronic Component
1250

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

FR307快恢复二极管产品概述

一、产品基本定位与核心属性

FR307是JUXING(钜兴)品牌推出的独立式快恢复/高效率二极管,属于中功率快恢复系列。该器件针对“中等电流+中高压+中等频率”的整流场景优化,区别于普通硅整流管(反向恢复时间长)和低耐压肖特基二极管,平衡了反向耐压、开关速度与导通损耗,适合工业、车载、电源等领域的常规整流需求。

二、关键电气参数解析

FR307的核心参数直接决定其应用边界,具体解析如下:

  • 正向压降(Vf):1.3V:正向导通时的电压损耗,在快恢复二极管中属于常规范围,相比普通硅整流管(约0.7V)略高,但因反向耐压提升,可满足高压场景的导通损耗控制需求;
  • 直流反向耐压(Vr):1kV:器件可长期承受的最大反向直流电压,是选型的核心指标,覆盖多数中高压(100V~1000V)整流场景;
  • 连续整流电流(If):3A:额定工作电流,需配合散热设计(如散热器)避免结温过高;
  • 反向漏电流(Ir):10μA:反向偏置时的漏电流,数值极低,保证反向截止时的绝缘性能,减少待机损耗;
  • 反向恢复时间(Trr):500ns:快恢复的关键参数,比普通整流管(如1N4007,Trr≈30μs)快60倍以上,适合几十kHz以内的开关电路,降低开关损耗;
  • 非重复峰值浪涌电流(Ifsm):125A:单次(8.3ms半波)可承受的最大浪涌电流,满足突发电流冲击(如电源启动瞬间)的场景;
  • 工作结温范围:-55℃~+125℃:宽温范围适应工业、车载等恶劣环境,无需额外温度补偿。

三、封装与物理特性

FR307采用DO-27封装,属于轴向引线塑料封装,具有以下特点:

  • 通孔安装设计:适合传统插件工艺,无需特殊焊接设备,便于批量生产;
  • 尺寸适中:引脚间距符合标准,安装时机械应力小,避免器件损坏;
  • 散热性能:塑料封装配合金属引脚的散热面积,可满足3A连续电流的基础散热需求(高负荷需外接散热器);
  • 绝缘性:封装材料具有良好绝缘性,可直接安装在金属外壳上(需保证引脚绝缘)。

四、典型应用场景

结合FR307的参数特性,其典型应用场景包括:

  1. 开关电源次级整流:适用于几十kHz开关频率的小功率开关电源(如100W500W),比普通整流管效率提升10%15%;
  2. 逆变电路输出整流:如小功率家用逆变电源(12V/24V转220V),满足中高压输出的整流需求;
  3. 工业控制电源:宽温范围(-55℃~125℃)适应工业现场的高低温变化,浪涌能力抗干扰;
  4. 车载电源模块:适配车载环境的温度波动,3A电流满足车载充电器、辅助电源的需求;
  5. 充电器/适配器:如笔记本电脑充电器(输出19V/3A),反向耐压1kV足够应对电网波动。

五、性能优势与场景匹配

FR307的核心优势在于**“高压+快恢复+中等电流”的平衡**:

  • 对比普通整流管(如1N4007):反向恢复时间快60倍,适合开关电路;
  • 对比肖特基二极管(如1N5819):反向耐压从几十V提升至1kV,覆盖高压场景;
  • 对比超快恢复二极管(Trr<100ns):成本更低,适合频率不高(<50kHz)的场景。 因此,该器件特别适合“既需要中高压反向耐压,又需要比普通整流管更快开关速度”的场景,避免性能过剩或不足。

六、使用注意事项

为保证FR307的可靠工作,需注意以下事项:

  1. 散热设计:3A连续电流下,若环境温度>40℃,需外接散热器(如铝制散热片),避免结温超过125℃;
  2. 电压限制:实际工作中反向电压不得超过1kV(直流),峰值浪涌电流不得超过125A(单次8.3ms);
  3. 温度范围:存储温度需控制在-55℃~+150℃以内,工作时避免结温超出额定范围;
  4. 安装规范:轴向引线焊接时,需保证引脚间距符合DO-27标准,避免机械应力导致封装开裂;
  5. 频率适配:若开关频率>50kHz,建议选用更快的快恢复二极管(如Trr<100ns),避免开关损耗过大。

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