WMSIC Electronic Components

LRC LRB551BS-30T5G LRB551BS

ModelLRB551BS-30T5G
PackageSOD-882
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 LRB551BS-30T5G
Type
LRC
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
LRB551BS-30T5G
Electronic Component
1
Package
SOD-882
Electronic Component
Schottky Diode
Electronic Component
0.009g
Electronic Component
1
Electronic Component
BM0264601601
Current
500mA
Diode
1
Current(Ir)
100uA@10V
(Vf)
540mV@500mA
Electronic Component
65℃~+150℃
Electronic Component
Electronic Component
Electronic Component
10000

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

LRB551BS-30T5G肖特基二极管产品概述

LRB551BS-30T5G是乐山无线电(LRC)推出的低正向压降、中低压肖特基二极管,采用独立式双引脚设计,适配表面贴装工艺,主要面向消费电子、小型电源及低功率电路的整流、续流等场景,以高效能、高可靠性为核心优势。

一、产品定位与核心属性

该器件属于小功率肖特基二极管,聚焦“低导通损耗+中低压应用”场景:反向耐压覆盖30V直流电压,持续整流电流达500mA,正向压降仅540mV(@500mA典型电流),在同类中低压肖特基中表现出优异的效率优势,适合对功耗敏感的紧凑型电路设计。

二、关键电气参数解析

1. 正向导通特性

正向压降(Vf)是肖特基二极管的核心性能指标,LRB551BS-30T5G在500mA持续电流下仅540mV,相比部分同耐压等级产品(如部分1N5817系列)压降更低,可显著降低导通损耗,提升电路效率。例如在5V电源输出电路中,该器件的功率损耗比高VF产品减少约15%~20%。

2. 反向阻断特性

  • 直流反向耐压(Vr):30V,满足大多数低电压电路(如5V、12V系统)的反向耐压需求;
  • 反向漏电流(Ir):10V反向电压下仅100μA,漏电流水平远低于常规整流二极管,可避免反向漏电导致的功耗增加及电路不稳定问题。

3. 电流与浪涌能力

  • 持续整流电流(Io):500mA,适配小功率负载(如小型LED驱动、USB接口供电);
  • 非重复峰值浪涌电流(Ifsm):3A(单脉冲,持续时间<10ms),可承受瞬时过流冲击(如电源启动瞬间的浪涌),提升电路抗干扰能力。

4. 温度适应性

工作结温范围为**-65℃~+150℃**,覆盖工业级温度要求,可在极端环境(如户外设备、汽车辅助电路)中稳定工作,无需额外降额设计。

三、封装与物理特性

LRB551BS-30T5G采用SOD-882表面贴装封装,属于小型双引脚封装(典型尺寸约1.6mm×0.8mm×0.6mm),具备以下优势:

  • 独立式引脚设计:引脚间距适中,便于自动化贴装与焊接,减少虚焊风险;
  • 高密度适配:小体积适合紧凑型PCB布局(如智能手机、智能穿戴设备的电源模块);
  • 散热性能:封装设计兼顾散热与小型化,可通过PCB铜箔辅助散热,满足500mA持续电流的热需求。

四、典型应用场景

结合参数特性,该器件主要应用于以下场景:

  1. 消费电子电源管理:手机、平板、智能音箱的USB接口整流、续流,或5V/1A以下电源适配器的低压整流;
  2. 小型LED驱动电路:小功率LED灯带、手电筒的续流二极管(避免LED反向击穿);
  3. 汽车电子辅助电路:车载USB充电口、仪表盘背光电路的整流,适配汽车级温度范围;
  4. 通信设备小信号处理:路由器、交换机的低电压整流、钳位保护(如ESD防护辅助);
  5. 工业控制低功率模块:小型传感器电路、继电器驱动电路的整流元件。

五、可靠性与环境合规性

  1. 可靠性设计:LRC采用成熟的肖特基工艺,器件经过高温老化、浪涌测试等可靠性验证,符合JEDEC标准;
  2. 环境合规:产品符合RoHS 2.0及无卤素要求,适配全球电子市场的环保标准;
  3. 长期稳定性:低反向漏电流、宽结温范围确保器件在长期工作中性能衰减缓慢,减少维护成本。

综上,LRB551BS-30T5G肖特基二极管以“低VF、小体积、宽温适配”为核心,精准匹配中低压小功率电路的整流、续流需求,是消费电子、汽车电子及工业控制领域的高性价比选择。

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