WMSIC Electronic Components

ON LL4148

ON LL4148
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Product image

ModelLL4148
PackageSOD-80
BrandON
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 Date code within 2 years

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Technical data

Product details

19 specifications

Core information

Product name
ON LL4148
Type
ON
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ON
Electronic Component
LL4148
Electronic Component
1
Package
SOD-80
Electronic Component
Switch Diode
Electronic Component
0.12g
Electronic Component
1
Electronic Component
BM0093065488
Current
200mA
Diode
1
Current(Ir)
25nA@20V
(Vf)
1V@10mA
Power Dissipation(Pd)
500mW
Electronic Component
55℃~+175℃@(Tj)
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 产品概述

一、产品概述

LL4148是一种标准类型的开关二极管，由知名半导体制造商ON Semiconductor（安森美）生产。该二极管特别适用于各种电子电路中的开关应用，凭借其优越的性能和高可靠性，广泛应用于数字电路、信号整形、整流以及其他电气设备中。

二、主要参数

  1. 电压和电流:

    • 反向电压（Vr）：LL4148的最大反向电压为100V，这意味着它能够承受较高的反向电压而不会损坏。
    • 平均整流电流（Io）：其额定的平均整流电流为200mA，非常适合需要适中电流处理的应用。

  2. 正向电压（Vf）:

    • 在10mA的正向电流下，LL4148表现出典型的正向电压为1V，说明其在工作状态下电压降较低，有助于提高电路的能效。

  3. 反向泄漏电流:

    • 在20V的反向电压下，反向泄漏电流仅为25nA，这表明LL4148在关闭状态下具有极低的泄漏特性，适合用于要求低功耗的电路。

  4. 速度和恢复时间:

    • LL4148的反向恢复时间（trr）为4ns，显示出其具有较快的切换速度，适合高频开关应用。

  5. 电容特性:

    • 该二极管在0V、1MHz频率下的电容为4pF，低电容值使其能够在高频的应用中保持良好的性能。

  6. 温度范围:

    • 工作结温度范围广，从-55°C到175°C，使得LL4148可以在极端环境下稳定工作，满足各种工业应用的需求。

三、封装和安装方式

LL4148采用SOD-80封装方式，适合表面贴装（SMD）技术，具有良好的小型化特性。SOD-80封装体积小，能够节省PCB空间，并且利于自动化生产。

四、应用场景

LL4148广泛应用于以下几个领域：

  • 数字电路：作为开关元件使用，提供良好的整流能力。
  • 信号整形：在模拟信号处理电路中，帮助整形和调理信号。
  • 直流电源：用于DC-DC转换器和后级整流电路中，提供高效的能量转换。
  • 高频应用：由于其快速的开关特性和低电容特性，适合用于RF和微波电路。

五、总结

作为高性能开关二极管，LL4148凭借其优异的电气参数和广泛的应用范围，在现代电子设备中显得尤为重要。它的低正向压降和极低的反向泄漏电流，使其非常适合于功耗敏感的电源管理应用。同时，高工作温度范围和快速的切换速度，也使其能够满足多种挑战性应用的需求。无论是设计新产品，还是在现有电路中替换元件，LL4148都将是一个理想的选择。

通过利用LL4148的独特性能，工程师们可以设计出更高效、更可靠的电子系统，进一步推动电子技术的发展和应用。

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