WMSIC Electronic Components

MSKSEMI 4532-091-LF-MS

Model4532-091-LF-MS
Package1812
BrandMSKSEMI
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
MSKSEMI 4532-091-LF-MS
Type
MSKSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MSKSEMI
Electronic Component
4532-091-LF-MS
Electronic Component
1
Electronic Component
3.2mm
Package
1812
Electronic Component
2
Electronic Component
(GDT)
Electronic Component
±30%
Electronic Component
0.28g
Electronic Component
4.5mm
Electronic Component
2.7mm
Electronic Component
1
Electronic Component
BM0264464016
Capacitor
0.5pF
Electronic Component
Electronic Component

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

MSKSEMI 4532-091-LF-MS 瞬态抑制二极管(TVS)产品概述

MSKSEMI(美森科)推出的4532-091-LF-MS是一款双向瞬态抑制二极管(TVS),专为电子设备的过压/浪涌防护设计,兼具小体积、低电容、高脉冲耐受等特性,适配消费电子、通信、工业控制等多领域的高频与通用防护场景。

一、产品核心定位与应用场景

该产品的核心作用是快速钳位过压脉冲,保护敏感电子元件免受静电放电(ESD)、雷击浪涌、开关瞬态电压等破坏。典型应用场景包括:

  • 消费电子:手机、平板、笔记本电脑的电源/信号端口(如USB、HDMI)防护;
  • 通信设备:路由器、交换机、基站的射频接口、以太网端口浪涌防护;
  • 工业控制:PLC、传感器模块、电机驱动电路的过压保护;
  • 车载电子:车载导航、ADAS传感器(如摄像头、雷达)的信号/电源防护。

二、关键电气参数解析

产品参数针对防护需求做了针对性设计,核心参数的实际意义如下:

  1. 直流击穿电压(Vdc):90V ±30%
    反向直流电压下不击穿的最大电压,实际工作范围为63V~117V,满足多数中低压电路的正常工作电压要求,过压超过此范围时器件快速导通。
  2. 脉冲放电电流(2kA)
    能承受的8/20μs标准浪涌脉冲的最大峰值电流,可有效抑制雷击感应浪涌、电源开关瞬态等中等强度冲击。
  3. 极间电容(0.5pF)
    极低的极间电容是该产品的核心优势之一,适配高频信号传输场景(如WiFi、蓝牙、USB 3.0),不会造成信号衰减或相位失真。
  4. 冲击击穿电压(Vimp):600V
    脉冲冲击下(如1.2/50μs雷击浪涌)的击穿电压,因脉冲时间短,器件来不及热击穿,此参数反映了脉冲状态下的防护阈值。

三、机械封装与尺寸规格

产品采用1812贴片封装(对应公制尺寸4532),具体物理参数:

  • 长度:4.5mm,宽度:3.2mm,高度:2.7mm;
  • 封装类型:表面贴装(SMD),兼容自动化贴装设备;
  • 环保特性:LF(无铅)封装,符合RoHS指令要求,满足绿色制造与出口需求。

小体积设计可节省PCB空间,适合便携式设备、小型化模块的高密度布局。

四、性能优势与可靠性

  1. 高频适配性:0.5pF极间电容远低于普通TVS管(通常>1pF),可直接并联在高速信号线上,不影响信号完整性;
  2. 高浪涌耐受:2kA脉冲电流能力覆盖多数通用场景的浪涌需求,避免器件被击穿失效;
  3. 稳定可靠:±30%的击穿电压精度在TVS管中属于合理范围,批量一致性好,降低电路设计冗余;
  4. 环保合规:无铅封装符合全球环保标准,适配各类出口产品的认证要求。

五、典型应用电路参考

1. 电源端口防护电路

将TVS并联在电源正负极之间,当电源出现过压(如雷击感应)时,TVS快速击穿导通,将电压钳位在安全范围内,保护后级MCU、电源芯片等敏感元件。

2. 高速信号端口防护电路

并联在USB 3.0、HDMI等高速信号线上,因0.5pF低电容,不会对信号传输造成影响;当ESD(如人体接触)或浪涌冲击时,TVS瞬间导通,将脉冲电流泄放到地,保护信号收发芯片。

3. 工业传感器接口防护

并联在传感器与控制器的通信线上(如RS485、CAN总线),抑制工业环境中的浪涌干扰,避免传感器数据异常或损坏。

总结

MSKSEMI 4532-091-LF-MS是一款高性价比双向TVS管,兼顾高频适配性、浪涌防护能力与小体积设计,可满足消费电子、通信、工业等领域的多场景过压保护需求,无铅封装符合环保要求,是电子设备防护的可靠选择。

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