1N4448

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1N4448

+BOM

DIODE STANDARD 100V 150MA DO35

  • 제조업체타이완 세미컨덕터 코퍼레이션

  • 제조업체 부품 #1N4448

  • 데이터시트 1N4448 DataSheet

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사양

속성 가치
Part Status Discontinued at Digi-Key
Technology Standard
Voltage - DC Reverse (Vr) (Max) 100 V
Current - Average Rectified (Io) 150mA
Voltage - Forward (Vf) (Max) @ If 1 V @ 100 mA
Speed Small Signal =< 200mA (Io), Any Speed
Current - Reverse Leakage @ Vr 5 µA @ 75 V
Capacitance @ Vr, F 4pF @ 0V, 1MHz
Mounting Type Through Hole
Package / Case DO-204AH, DO-35, Axial
Supplier Device Package DO-35
Operating Temperature - Junction -65°C ~ 150°C
Base Product Number 1N4448
Reverse Recovery Time (trr) 4 ns

개요

Description

The 1N4448 is a general-purpose silicon diode widely used in electronic circuits for signal processing and rectification. It is known for its fast switching speed and low forward voltage drop, making it suitable for high-frequency applications. The diode can handle a maximum reverse voltage of 100 volts and a forward current of 1 ampere, with a typical forward voltage drop of around 0.7 volts at this current.
Key features include a high surge current capability and good thermal stability. Due to its reliability and performance, the 1N4448 is commonly found in applications such as clamping, signal detection, and waveform shaping.
It is packaged in a DO-35 glass package, making it compact and easy to integrate into various circuit designs. Overall, the 1N4448 is a versatile component favored by engineers for its efficiency in both analog and digital applications.

Equivalent

The 1N4448 is a popular small-signal diode. Equivalent products include 1N4148, 1N4001, 1N4007, and BAV99. However, the 1N4148 is the closest alternative, as it shares similar characteristics in terms of switching speed and current rating. Always verify specifications such as reverse voltage and current ratings before substitution.

Features

The 1N4448 is a popular silicon switching diode known for its high-speed performance and versatility in various applications. Key features include:
1. Reverse Voltage: Maximum repetitive reverse voltage (VRRM) of 100V, making it suitable for various voltage applications.
2. Forward Current: Continuous forward current (IF) rating of 1A, allowing it to handle moderate current loads.
3. Forward Voltage Drop: Low forward voltage drop (typically around 0.7V at 1A), enhancing efficiency in circuits.
4. Speed: Fast switching speed (typical recovery time of 75ns), ideal for high-frequency applications.
5. Package: Available in different packages (DO-35, DO-41), making it adaptable for various mounting requirements.
6. Temperature Range: Operating junction temperature range of -65°C to +175°C, ensuring reliability across different environments.
7. Applications: Commonly used in signal demodulation, switching applications, and as a protection diode in circuits.
Overall, the 1N4448 is a reliable choice for electronic designs requiring fast and efficient diode performance.

Pinout

The 1N4448 is a standard silicon switching diode with a total of 2 pins.
Pin Configuration:
1. Anode (A): The positive terminal where current enters the diode when forward-biased.
2. Cathode (K): The negative terminal marked with a band, where current exits the diode in the forward direction.
Function:
The 1N4448 is primarily used for high-speed switching applications. It can handle reverse voltage up to 100V and has a maximum forward current of 1A. With a fast switching time of approximately 4 nanoseconds, it is commonly used in digital circuits, signal processing, and as a general-purpose rectifier in various electronic applications.

Manufacturer

The 1N4448 is a popular general-purpose diode primarily manufactured by various semiconductor companies, including ON Semiconductor, Vishay, and Nexperia. These companies are prominent players in the electronics industry, specializing in the design and production of semiconductors and other electronic components.
ON Semiconductor focuses on energy-efficient technology and provides a wide range of semiconductor solutions, including diodes, transistors, and integrated circuits. Vishay is known for its extensive portfolio of passive and active components, serving multiple sectors like automotive, industrial, and telecommunications. Nexperia, a spin-off from NXP Semiconductors, concentrates on discrete, logic, and MOSFET components, emphasizing high-volume production and reliability.
All these manufacturers operate in the electronics sector, catering to various industries that require reliable electronic components for applications such as power management, signal processing, and circuit protection. Their products, including the 1N4448 diode, are widely used in consumer electronics, automotive systems, and industrial equipment.

Application

The 1N4448 is a high-speed switching diode primarily used in various electronic applications. Key areas include:
1. Rectification: Converting alternating current (AC) to direct current (DC).
2. Clamping Circuits: Protecting sensitive components from voltage spikes.
3. Signal Demodulation: Extracting information from modulated signals in communication systems.
4. Fast Switching Applications: Ideal for high-frequency circuits like RF (radio frequency) applications.
5. Voltage Regulation: Used in Zener diode configurations for voltage stabilization.
Its fast recovery time and low forward voltage drop make it suitable for these applications.

Package

The 1N4448 is commonly packaged in DO-35 glass diode packages. It is a small, cylindrical package designed for discrete semiconductor components, providing effective protection and stability for the diode.

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