WMSIC Electronic Components

Leiditech SM05

ModelSM05
PackageSOT-23
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 26+

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
Leiditech SM05
Type
LEIDITECH
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LEIDITECH
Electronic Component
SM05
Electronic Component
1
Package
SOT-23
Electronic Component
0.017g
Electronic Component
1
Electronic Component
BM0265793024
Electronic Component
Electronic Component
Electronic Component
3000

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

SM05 TVS瞬态抑制二极管产品概述

SM05是雷卯电子(Leiditech)推出的一款针对5V系统设计的瞬态抑制二极管(TVS),专注解决电子设备中静电放电(ESD)、电快速瞬变脉冲群(EFT)及浪涌干扰问题,以紧凑SOT-23封装实现高效防护,适配小型化、低功耗电子设备需求。

一、产品核心定位

SM05的设计核心是精准适配5V常态工作电压,在不干扰系统正常运行的前提下,快速响应瞬态过压并钳位至安全范围,保护后端敏感元件(如MCU、传感器、通信模块等)免受损坏。其低漏电流、小体积特性,尤其适合消费电子、智能穿戴、工业低电压模块等场景。

二、关键技术参数解析

SM05参数围绕“5V系统防护”优化,核心参数如下:

  • 反向截止电压(Vrwm):5V
    与5V供电系统常态电压匹配,正常工作时截止,不干扰信号传输。
  • 击穿电压(最小值):6V
    过压超过6V即快速击穿导通,启动防护(TVS典型响应时间为ns级)。
  • 最大钳位电压:13.5V
    导通后将过压钳位在13.5V以内,避免后端元件(如MCU IO口)过压损坏。
  • 脉冲防护能力
    • 峰值脉冲电流(Ipp):10A(10/1000μs波形,模拟慢脉冲浪涌);
    • 峰值脉冲功率(Ppp):300W(8/20μs波形,模拟雷击/电源快脉冲浪涌);
      覆盖多数5V系统的干扰强度需求。
  • 低漏电流与结电容
    • 反向漏电流(Ir):10μA(常态下),不增加系统功耗;
    • 结电容(Cj):300pF,适合低速到中速信号(如USB 2.0、蓝牙)防护。

三、防护能力与国际标准

SM05通过多项国际EMC标准测试,确保防护可靠性:

  • IEC 61000-4-2(ESD):应对人体/设备静电放电(接触放电±8kV、空气放电±15kV典型值);
  • IEC 61000-4-4(EFT):抑制电源线上的电快速瞬变脉冲群;
  • IEC 61000-4-5(浪涌):抵御雷击或电源开关浪涌(线-地、线-线防护)。
    覆盖电子设备生产、运输、使用中的常见干扰场景。

四、典型应用场景

SM05因体积小、防护针对性强,广泛应用于:

  1. 消费电子:智能手机、平板电脑的USB接口、耳机孔、充电端口;
  2. 智能穿戴:手环、手表的传感器、蓝牙模块接口;
  3. 工业低电压模块:小型PLC IO口、温度/湿度传感器节点;
  4. 通信设备:低功率WiFi、蓝牙模块的天线/电源端口。

五、封装与可靠性

SM05采用SOT-23封装,尺寸紧凑(约2.9×1.6×1.1mm),适合高密度贴装;符合RoHS环保标准,工作温度范围-55℃~150℃,耐潮湿,可适应户外/工业现场环境。

六、选型注意事项

  1. 电压匹配:仅适配5V系统,3.3V系统需选SM03等型号;
  2. 脉冲强度:需更高电流(>10A)可并联多个SM05,或选更高功率型号;
  3. 信号速率:300pF结电容适合100Mbps以下信号,高速信号(如USB 3.0)需选低电容TVS(<10pF)。

SM05作为雷卯电子经典5V TVS产品,以平衡的防护性能、紧凑体积和成本优势,成为5V系统瞬态防护的常用选型,广泛应用于国内外电子设备中。

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