WMSIC Electronic Components

YANGJIE 1N4937G

Model1N4937G
PackageDO-41
BrandYANGJIE
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

13 specifications

Core information

Product name
YANGJIE 1N4937G
Type
DO-41
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
1N4937G
Electronic Component
1
Package
DO-41
Electronic Component
0.29g
Electronic Component
1
Electronic Component
BM0265000105
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.

1N4937G快恢复二极管产品概述

一、产品核心定位与应用场景

1N4937G是扬杰科技推出的独立式快恢复/高效率二极管,采用经典DO-41轴向插件封装,核心定位为「中小功率高频整流/续流专用器件」。区别于普通硅整流管(如1N400x系列),其快速恢复特性可有效降低开关损耗,适用于以下典型场景:

  • 开关电源次级输出整流(10-50W中小功率电源);
  • LED驱动电源续流回路(配合开关管抑制反向冲击);
  • 小功率逆变器(100-500W家用逆变)功率回路;
  • 电池充电电路防反充保护(600V耐压提供充足裕量)。

二、关键电气参数解析

1N4937G的参数设计兼顾「性能、可靠性与应用兼容性」,核心参数如下:

1. 耐压与电流额定值

  • 直流反向耐压(Vr):600V——满足220V市电整流后(约400V)的200V耐压裕量,避免过压击穿;
  • 额定整流电流(If):1A——覆盖中小功率负载(如12V/2A电源、5V/1A驱动);
  • 非重复峰值浪涌电流(Ifsm):30A(8.3ms)——可承受启动瞬间或短路冲击,提升电路抗干扰能力。

2. 低损耗与快速恢复

  • 正向压降(Vf):1.2V@1A——快恢复特性下仍保持低损耗,减少发热(对比普通整流管1N4007,恢复时间从us级降至150ns,损耗仅增加0.1V);
  • 反向恢复时间(Trr):150ns——开关过程中反向恢复电流持续时间短,降低EMI干扰与开关管应力,适合50kHz以下开关频率。

3. 反向特性与宽温

  • 反向漏电流(Ir):2.5uA@额定电压——反向截止时漏电流极小,提升待机效率;
  • 工作结温范围:-55℃~+150℃——适应工业级宽温环境(如户外电源、车载辅助电路)。

三、封装与可靠性设计

采用DO-41轴向插件封装,兼具「安装便捷性与可靠性」:

  • 体积紧凑:直径≈2.7mm,长度≈6.5mm,适合高密度PCB设计;
  • 焊接兼容性:镀锡铜线引脚,支持手工焊接、波峰焊,无虚焊风险;
  • 工艺优化:扬杰科技采用芯片减薄与封装结构优化,确保结温均匀性,长期可靠性达10万小时以上;
  • 环保合规:符合RoHS无铅无卤标准,满足绿色电子设计需求。

四、典型应用价值

以12V/2A开关电源为例,1N4937G可带来明显收益:

  • 整流效率提升:1.2V低正向压降使电源效率从85%提升至87%-88%;
  • 开关应力降低:150ns恢复时间减少反向恢复电流对MOSFET的冲击,延长开关管寿命;
  • 成本可控:国产主流品牌器件,性价比优于进口同类产品(如1N4937),适合批量应用。

五、产品优势总结

1N4937G的核心竞争力在于「均衡性能+高可靠性+易集成」:

  • 性能无妥协:600V耐压、1A电流、150ns恢复时间满足中小功率高频需求;
  • 可靠性突出:宽结温、强浪涌能力适配工业级环境;
  • 应用灵活:DO-41封装覆盖90%以上中小功率电路设计,无需额外适配。

作为扬杰科技成熟量产的快恢复二极管,1N4937G是开关电源、LED驱动等领域的高性价比选型。

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