WMSIC Electronic Components

ST LL4148 diode LL4148

ModelLL4148
PackageLL-34
BrandST
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 24+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
ST LL4148
Type
ST
Unit
Electronic Component
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ST
Electronic Component
LL4148
Electronic Component
1
Package
LL-34
Electronic Component
Switch Diode
Electronic Component
0.046g
Electronic Component
1
Electronic Component
BM0209538107
Current
200mA
Diode
1
Current(Ir)
5uA@75V
(Vf)
1V@10mA
Power Dissipation(Pd)
500mW
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.

LL4148 开关二极管产品概述

概要

LL4148 是一种高性能的开关二极管, 由著名的电子元器件制造商 ST(先科)生产。该元器件以其优秀的电气特性和广泛的应用场景而受到广泛欢迎。以下是对 LL4148 开关二极管的详细介绍。

基础参数

  • 反向恢复时间(trr): 4 ns
    • 低的反向恢复时间使得 LL4148 非常适合于高频切换应用,能够快速恢复到阻断状态,减少能量损耗和热量产生。
  • 反向电流(Ir): 5 uA @ 75 V
    • 在高反向电压下,LL4148 的反向漏电流非常低,这意味着在正常工作条件下,它不会消耗太多的能量,并且提高了系统的整体效率。
  • 商品分类: 开关二极管
    • 作为一种开关二极管,LL4148 设计用于快速切换和高频应用,如信号处理、数字电路、高速数据传输等领域。
  • 整流电流: 200 mA
    • LL4148 可以承受高达 200 mA 的整流电流,这使得它适用于中小功率的电子设备和系统。
  • 正向压降(Vf): 1 V @ 10 mA
    • 在典型工作条件下(10 mA),LL4148 的正向压降仅为 1 V,这意味着它在导通状态下会产生较小的能量损耗,从而提高系统的总体效率。
  • 直流反向耐压(Vr): 75 V
    • 高达 75 V 的直流反向耐压确保了 LL4148 在各种电压环境中都能稳定运行,具有良好的耐压能力。

封装

  • 封装类型: SOD-80
    • SOD-80 封装是一种小型化的封装形式,适合于空间有限但要求高性能的电子设备。这种封装方式不仅节省空间,还能提高散热性能和可靠性。

应用场景

LL4148 开关二极管广泛应用于以下几个领域:

  1. 高速信号处理
    • 由于其低反向恢复时间和高频切换能力,LL4148 非常适合用于高速信号处理应用,如数据传输线路、通信设备等。
  2. 数字电路
    • 在数字电路中,LL4148 可以作为保护二极管或信号耦合元件,确保系统的稳定性和可靠性。
  3. 电源管理
    • 在电源管理系统中,LL4148 可以用于过压保护、反馈环路以及其他需要快速响应和高频切换的场景。
  4. 自动控制系统
    • 自动控制系统中常需要快速响应和精确控制,LL4148 的性能特点使其成为这些系统中的理想选择。

优势

  • 高频性能
    • 低反向恢复时间使得 LL4148 适合于高频应用,减少了因频率高而产生的能量损耗。
  • 低能耗
    • 低正向压降和低反向漏电流确保了 LL4148 在正常工作条件下能耗较低,从而提高系统的总体效率。
  • 高耐压能力
    • 高达 75 V 的直流反向耐压保证了 LL4148 在各种电压环境中都能稳定运行,提高了系统的可靠性。
  • 小型化封装
    • SOD-80 封装形式使得 LL4148 可以应用于空间有限但要求高性能的电子设备中。

使用注意事项

  • 工作温度
    • 确保操作温度在推荐范围内,以避免因过热而导致的性能下降或故障。
  • 电压限制
    • 不要超过最大允许的直流反向耐压,以防止元件损坏。
  • 安装
    • 正确安装 LL4148,以确保良好的接触和散热性能。

总结

LL4148 开关二极管是 ST(先科)生产的一款高性能电子元器件,具有低反向恢复时间、低能耗、 高耐压能力以及小型化封装等优点。这些特性使得它广泛应用于高速信号处理、数字电路、电源管理以及自动控制系统等领域。如果您正在寻找一种高性能、可靠性强且适合各种高频应用的开关二极管,LL4148 将是一个理想的选择。

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