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LRC S-LRB520S-40T1G
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- LRC S-LRB520S-40T1G
- Type
- LRC
- Minimum package
- 5000 未知
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LRC
- Electronic Component
- S-LRB520S-40T1G
- Electronic Component
- 1
- Package
- SOD-523
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.023g
- Electronic Component
- 1
- Electronic Component
- BM0264999492
- Current
- 200mA
- Diode
- 1
- Current(Ir)
- 1uA
- (Vf)
- 390mV
- Electronic Component
- 55℃~+125℃
- 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.
LRC S-LRB520S-40T1G肖特基二极管产品概述
一、产品核心定位与品牌背景
LRC S-LRB520S-40T1G是乐山无线电（LRC）推出的小信号肖特基整流二极管，针对低功耗、高密度集成的电子设备需求设计，以「低正向压降+小封装+宽温可靠性」为核心优势，覆盖便携电子、物联网、小型电源等多领域应用。
乐山无线电作为国内老牌半导体厂商，深耕分立器件领域超50年，其产品通过AEC-Q101（汽车级）、MIL-STD（军工级）等认证，S-LRB520S-40T1G继承了LRC的可靠性基因，适合对性能与成本平衡要求较高的量产场景。
二、关键电气参数深度解析
该器件的核心参数围绕「低功耗、宽适配」设计，关键指标如下：
参数 数值 实际意义 正向压降（Vf） 390mV 远低于传统硅二极管（0.7V），相同电流下功耗降低约44%，适配电池供电设备 直流反向耐压（Vr） 40V 满足大多数低电压电路的反向阻断需求，无需额外串联高压器件 持续整流电流（If） 200mA 稳定承载日常小信号电路的工作电流，适配便携设备的电源路径管理 反向漏电流（Ir） 1μA 反向偏置下几乎无额外功耗，进一步提升电路效率，延长电池续航 工作结温范围 -55℃~+125℃ 覆盖工业级与汽车电子辅助电路的宽温要求，极端环境下仍稳定工作 非重复峰值浪涌电流 1A（8.3ms） 应对电路启动瞬间的脉冲冲击，降低器件损坏风险三、封装与可靠性设计特点
采用SOD-523封装（又称0402封装），尺寸仅1.0mm×0.6mm×0.45mm，是超小型表面贴装封装之一，具备以下优势：
- 空间节省：适配对尺寸敏感的可穿戴设备、智能传感器等产品，PCB布局密度提升30%以上；
- 可靠性优异：封装材料采用高温稳定性塑料，配合LRC成熟的模塑工艺，抗机械应力（跌落测试符合JEDEC标准）与温度循环性能突出；
- 焊接兼容性：支持回流焊、波峰焊（需适配治具），焊接温度曲线符合J-STD-020国际标准，量产良率稳定。
四、典型应用场景
该器件的参数特性使其在多场景下具备替代优势：
- 便携电子终端：智能手机、智能手环、蓝牙耳机的电源路径切换与续流电路，低压降减少电池能量损耗；
- 物联网传感器节点：低功耗温湿度、运动传感器的信号整流与电源管理，1μA漏电流可延长电池续航15%以上；
- 小型DC-DC转换器：作为续流二极管，其快速恢复特性（肖特基二极管典型恢复时间<100ns）适配高频（1MHz以上）转换，提升效率3%-5%；
- 汽车电子辅助电路：车载中控的小信号处理电路（如USB接口电源切换），-55℃+125℃宽温覆盖车载环境（-40℃+85℃）；
- 通信接口电路：USB Type-C、Micro-USB的电源切换电路，小封装适配接口的高密度布局。
五、选型与使用注意事项
- 参数匹配：持续工作电流需控制在200mA以内，反向电压不得超过40V，避免过流/过压损坏；
- 温度管理：结温超过125℃时漏电流会显著增大，建议通过PCB布局增加散热铜箔，或降额使用（工作电流≤150mA）；
- 浪涌防护：虽有1A浪涌能力，但避免频繁出现超额定脉冲，必要时并联TVS二极管（如SMBJ40CA）；
- 焊接工艺：回流焊峰值温度需控制在240-260℃（10-30s），手工焊接需使用恒温烙铁（≤350℃，时间≤3s），避免封装变形。
综上，LRC S-LRB520S-40T1G以「低功耗、小封装、高可靠性」为核心竞争力，是低电压小信号电路的高性价比选型，尤其适合对尺寸与效率要求严格的量产产品。
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