WMSIC Electronic Components

Leiditech SRV0504

ModelSRV0504
PackageSOT-23-6L
BrandLeiditech
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 25+

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Technical data

Product details

19 specifications

Core information

Product name
Leiditech SRV0504
Type
LEIDITECH
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LEIDITECH
Electronic Component
SRV0504
Electronic Component
1
Package
SOT-23-6L
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.025g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0264463880
Operating Temperature
55℃~+125℃
Voltage
15V
Electronic Component
IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
500nA
Voltage(VBR)
6V

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

SRV0504 四路TVS瞬态抑制二极管产品概述

SRV0504是雷卯电子(Leiditech)针对低电压多通道电路设计的瞬态抑制二极管(TVS),专为5V系统的浪涌、静电放电(ESD)防护打造。作为集成四路独立防护通道的器件,它兼顾小体积与高防护性能,广泛适配工业、消费电子、物联网等领域的小型化电路需求,核心作用是快速泄放瞬态过压能量,保护后端敏感元器件(如MCU、传感器)免受损坏。

一、产品核心定位与类型

SRV0504属于过压保护器件,基于TVS(瞬态抑制二极管)原理工作:当电路出现瞬态浪涌(如雷击、静电、电源波动)时,器件会从高阻态快速切换为低阻态,将浪涌电压钳位在安全范围,同时泄放浪涌电流,避免后端元件击穿或失效。

区别于单通道TVS,SRV0504集成四路独立防护通道,可同时防护多根信号线/电源线,简化电路设计,节省PCB空间,是5V系统多线防护的优选方案。

二、关键电气参数解析

SRV0504的参数针对5V系统精准优化,核心参数如下:

1. 工作电压匹配参数

  • 反向截止电压(Vrwm):5V
    是器件正常工作时反向偏置允许施加的最大直流电压,与被防护的5V系统电压完全匹配,保证正常工作时器件不导通,不影响电路功能。
  • 击穿电压(最小值):6V
    瞬态过压触发器件导通的阈值,6V的最小击穿电压确保浪涌来临时快速响应(TVS典型响应时间为ns级),避免电压上升至损坏阈值。

2. 防护能力参数

  • 钳位电压:15V
    导通后将浪涌电压钳位在15V以下,远低于数字电路典型损坏阈值(20V以上),有效保护后端敏感元件。
  • 峰值脉冲能力
    • 峰值脉冲电流(Ipp):@10/1000μs(慢脉冲浪涌)下为5A;
    • 峰值脉冲功率(Ppp):@8/20μs(雷电浪涌典型波形)下为75W;
      可应对多种瞬态干扰场景(如雷击、电源开关浪涌)。

3. 功耗与通道参数

  • 反向漏电流(Ir):500nA
    Vrwm=5V下的漏电流极小,不增加系统静态功耗,适合对功耗敏感的便携式设备、低功耗IoT模块。
  • 通道数:四路
    可同时防护4路独立线路(如I2C总线的SDA/SCL、电源、接地,或RS485的A/B线+辅助线),无需多个单通道器件。

三、封装与工作环境

1. 封装形式

采用SOT-23-6L小型化表面贴装封装,尺寸紧凑(典型2.9×1.6×1.1mm),适配高密度PCB设计,符合消费电子、物联网设备的小型化趋势。

2. 工作温度范围

-55℃~+125℃的工业级宽温范围,可适应极端环境(如户外传感器、汽车电子辅助电路),满足不同应用的温度可靠性要求。

四、防护标准与典型应用场景

1. 国际防护标准符合性

SRV0504符合IEC 61000-4-5(浪涌抗扰度) 和 IEC 61000-4-2(静电放电) 标准,经过严格测试:

  • 可抑制±8kV接触放电、±15kV空气放电的ESD干扰;
  • 可承受2kV/3kA等级的浪涌冲击,保障电路EMC性能。

2. 典型应用场景

  • 物联网(IoT)模块:WiFi、蓝牙模块的电源与数据总线防护;
  • 工业控制传感器:温度、压力传感器的信号/电源线路防护(适配宽温环境);
  • 便携式电子设备:智能手机、智能手表的充电/数据接口防护(低功耗+小体积);
  • 通信接口:RS485、CAN总线的多线防护(4通道适配总线多线需求);
  • 消费电子:机顶盒、智能家电的控制电路防护(应对日常静电干扰)。

五、产品核心优势总结

  1. 集成化设计:四路通道集成,减少器件数量,简化布板,节省PCB空间;
  2. 低功耗特性:500nA漏电流不影响系统静态功耗,适合低功耗应用;
  3. 宽温可靠性:-55℃~+125℃覆盖工业级场景,适应极端环境;
  4. 标准符合性:满足IEC 61000-4-2/4-5防护标准,可靠性有保障;
  5. 电压精准匹配:针对5V系统优化,Vrwm、击穿电压与系统电压完全适配,防护效果精准。

SRV0504以高集成度、低功耗、宽温可靠的特点,成为5V系统多通道过压防护的高性价比方案,可有效提升电路的抗干扰能力与可靠性。

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