WMSIC Electronic Components

LRC LRB500V-40T1G LRB500V

ModelLRB500V-40T1G
PackageSOD-323
BrandLRC
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
LRC LRB500V-40T1G
Type
LRC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
LRB500V-40T1G
Electronic Component
1
Package
SOD-323
Electronic Component
Schottky Diode
Electronic Component
0.027g
Electronic Component
1
Electronic Component
BM0265148809
Current
100mA
Diode
1
Current(Ir)
1uA
(Vf)
450mV
Electronic Component
Electronic Component
Electronic Component
3000
Voltage Rating(Vr)
40V

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

LRB500V-40T1G肖特基二极管产品概述

一、产品核心定位与类别

LRB500V-40T1G是乐山无线电(LRC)推出的低正向压降小信号肖特基二极管,属于该品牌肖特基产品线中的基础优化款型。其核心设计目标是为低压、小功率电子电路提供高效整流、反向保护及信号钳位功能,凭借“低导通损耗+高反向耐压”的平衡特性,适配消费电子、工业控制及汽车电子辅助电路等多场景。

二、关键电气参数深度解析

该器件的电气参数针对低压应用做了针对性优化,核心参数及实际意义如下:

1. 正向压降(Vf):450mV(典型值)

作为肖特基二极管的核心优势,450mV的正向压降比普通硅整流二极管(约0.7V)低35%,可显著降低电路导通损耗——在3.3V/5V低压电源系统中,能提升电源转换效率5%-10%,同时减少器件发热,适合对功耗敏感的便携设备。

2. 直流反向耐压(Vr):40V

40V的反向耐压覆盖了绝大多数低压场景的反向保护需求:包括12V汽车电子系统、24V工业辅助电路,以及锂电池(3.7V-4.2V)供电设备的反向防接保护,无需额外串联高压器件,简化电路设计。

3. 连续整流电流(IF):100mA

额定连续工作电流为100mA,适配小功率信号整流或电源支路(如LED指示灯驱动、传感器模块供电);若需更高电流,可并联多颗器件,或选择同系列更高电流规格。

4. 反向漏电流(Ir):1μA(典型值)

反向截止状态下仅1μA的漏电流,在电池供电设备(如智能穿戴、蓝牙耳机)中可有效降低静态功耗,延长电池续航;同时低漏电流保证了信号电路完整性,避免反向漏电对模拟信号的干扰。

5. 非重复峰值浪涌电流(Ifsm):1A

短时间(≤10ms)可耐受1A峰值浪涌电流,应对电路启动瞬间的过电流冲击(如电源上电时的电容充电电流),提升器件可靠性,减少浪涌导致的失效风险。

三、封装与物理特性

LRB500V-40T1G采用SOD-323超小型表面贴装封装,是高密度PCB设计的标准选型,具体特性:

  • 尺寸:1.6mm(长)×0.8mm(宽)×0.6mm(高),引脚间距0.65mm;
  • 引脚:2脚(阳极/阴极),适配自动贴装(SMT)生产;
  • 环保:无铅封装(符合RoHS指令),满足现代电子设备的环保要求。

超小体积使其可集成到智能手环、微型传感器、小型家电等轻薄化产品中,契合设备小型化趋势。

四、典型应用场景

结合参数特性,主要应用场景包括:

  1. 低压电源整流:3.3V/5V/12V电源的次级整流(如开关电源输出续流);
  2. 反向保护:电池设备防反向插入、电源输入端口过压反向保护;
  3. 信号钳位:射频电路、模拟信号路径的过压防护(如音频输入、传感器信号);
  4. 便携设备:智能穿戴(手环/手表)、蓝牙耳机的电源管理;
  5. 汽车电子:车内LED指示灯、小功率传感器(温度/压力)的整流与保护。

五、品牌与可靠性背书

该器件由国内知名半导体厂商乐山无线电(LRC) 生产,LRC在肖特基二极管领域具有成熟的技术积累,产品优势:

  • 符合工业级可靠性测试(高温存储、温度循环、湿度测试等);
  • 批量生产一致性好,降低电路参数离散性风险;
  • 广泛应用于消费电子、汽车电子、工业控制领域,市场验证充分。

六、选型与使用注意事项

  1. 参数匹配:连续电流≤100mA,反向电压峰值≤40V,浪涌电流(非重复)≤1A;
  2. 温度影响:反向漏电流随温度升高而增大(125℃时可达数十μA),避免超温长期工作;
  3. 焊接要求:烙铁温度≤350℃,焊接时间≤3秒,防止热损伤;
  4. 降额使用:可靠性要求高的场景(如汽车电子),建议连续电流降额至80mA,反向电压降额至32V。

LRB500V-40T1G凭借平衡的性能参数与超小封装,成为低压小功率电路的高性价比选型,适配多种主流电子设备的设计需求。

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