1N4148

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DIODE GEN PURP 75V 150MA DO35

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Especificações

Atributo Valor
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Obsolete
Diode Type Standard
Voltage - DC Reverse (Vr) (Max) 75 V
Current - Average Rectified(Io) 150mA
Voltage - Forward (Vf) (Max) @ If 1 V @ 10 mA
Speed Small Signal =< 200mA (Io), Any Speed
Reverse Recovery Time (trr) 4 ns
Current - Reverse Leakage @ Vr 5 µA @ 75 V
Mounting Type Through Hole
Supplier Device Package DO-35

Visão Geral

Description

The 1N4148 is a widely used small signal silicon diode known for its fast switching capabilities. It is part of the 1N family of diodes and is primarily used in signal processing and high-speed switching applications. With a reverse recovery time of approximately 4 nanoseconds, it effectively handles frequencies in the MHz range, making it ideal for RF, digital circuits, and waveform clipping.
The diode has a maximum reverse voltage (VR) of 100V and a forward current (IF) of 200mA. It features a low forward voltage drop, typically around 0.7V at 10mA, which helps in minimizing power loss. The 1N4148 is housed in a DO-35 glass package, providing excellent mechanical protection and reliability.
Its widespread availability and low cost make it a popular choice in both professional and hobbyist electronic projects. The 1N4148’s robustness and performance across a wide temperature range (-65°C to +175°C) further enhance its suitability for various applications, including rectification, clamping, and protection circuits.

Equivalent

The 1N4148 is a widely used small signal fast switching diode. Equivalent products include 1N914, 1N4448 1N4150, and BAV19. These diodes generally have similar specifications, such as fast switching speed, low forward voltage drop, and high-speed response, making them suitable alternatives in most applications that require general-purpose switching diodes. Always check the specific datasheets to ensure compatibility for your specific use case.

Features

The 1N4148 is a standard silicon switching diode known for its reliability and speed. Key features include:
1. Fast Switching Speed: It has a reverse recovery time of around 4 nanoseconds, making it suitable for high-speed switching applications.
2. Low Forward Voltage Drop: Typically around 0.7 volts at 10 mA, which ensures efficient operation in low-power applications.
3. High Reverse Breakdown Voltage: Rated at 100 volts, providing robustness against voltage spikes.
4. Current Handling: Capable of handling a continuous forward current of 200 mA, allowing it to be used in various circuit designs.
5. Temperature Range: Operates effectively between -65°C to +175°C, making it suitable for various environmental conditions.
6. Small Package: Available in DO-35 glass package, offering compactness for use in space-constrained designs.
These features make the 1N4148 a versatile component in digital and analog circuits, particularly in signal processing and protection roles.

Pinout

The 1N4148 is a standard silicon switching diode with two pins, an anode and a cathode. Its primary function is to allow current to flow in one direction (forward-biased) while blocking it in the opposite direction (reverse-biased). This makes it useful for applications like signal processing, rectification, and protection. The diode is popular due to its fast switching speed and reliability. It is often used in digital and analog circuits for tasks such as clipping, clamping, and protection against voltage spikes. The 1N4148 can handle a maximum forward current of about 200 mA and has a reverse recovery time of approximately 4 nanoseconds, making it suitable for high-speed switching applications.

Manufacturer

The 1N4148 is a widely used standard switching diode. It is not manufactured by a single company; instead, it is produced by several semiconductor companies. Some of the notable manufacturers include:
1. Vishay Intertechnology - An American manufacturer of discrete semiconductors and passive electronic components.
2. ON Semiconductor (now known as onsemi) - A supplier of semiconductor-based solutions, including power and signal management, logic, discrete, and custom devices.
3. Texas Instruments - A global semiconductor design and manufacturing company, known for developing analog and embedded processing chips.
4. Nexperia - A global semiconductor manufacturer focusing on efficient, high-volume production of essential semiconductors.
5. Diodes Incorporated - A manufacturer and supplier of application-specific standard products within the broad discrete, logic, analog, and mixed-signal semiconductor markets.
These companies produce the 1N4148 diode as part of their product offerings in the semiconductor industry, emphasizing components used in electronic applications for their reliability and performance.

Application

The 1N4148 is a widely used small signal switching diode. Its primary application areas include:
1. Signal Processing: Used in logic circuits for signal modulation and demodulation.
2. Switching: Ideal for high-speed switching applications due to its fast recovery time.
3. Rectification: Suitable for small current rectification processes.
4. Clamping and Protection: Used in clamping circuits to protect sensitive components from voltage spikes.
5. Mixing and Detection: Utilized in RF and IF circuits for mixing and signal detection.
6. Voltage Isolation: Used in circuits requiring voltage isolation between different stages.
Its versatility and reliability make it a staple in various electronic designs.

Package

The 1N4148 is a standard small signal diode commonly available in an axial leaded DO-35 package. It is also available in surface-mount versions such as the SOD-123 and SOD-323 packages. These package types are widely used in electronic circuits for fast switching applications.

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