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1N4937

Name: 1N4937
Rating: 4.7 (12 reviews)

DIODE GEN PURP 600V 1A DO41

Производитель
Мфр. Часть #1N4937
Пакет DO-204
Лист данных
В наличии4592

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Спецификации

Package	Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus	Obsolete
DiodeType	Standard
Voltage-DCReverse(Vr)(Max)	600 V
Current-AverageRectified(Io)	1A
Voltage-Forward(Vf)(Max)@If	1.2 V @ 1 A
Speed	Fast Recovery =< 500ns, > 200mA (Io)
ReverseRecoveryTime(trr)	150 ns
Current-ReverseLeakage@Vr	5 µA @ 600 V
Capacitance@VrF	12pF @ 4V, 1MHz
MountingType	Through Hole
Package/Case	DO-204AL, DO-41, Axial
SupplierDevicePackage	DO-41

Обзор

Description

The 1N4937 is a silicon rectifier diode designed for high-speed switching applications. It has a maximum repetitive reverse voltage (VRRM) of 40 volts and a forward current (IF) rating of 1 ampere, making it suitable for various power supply and signal processing applications. Its low forward voltage drop, typically around 0.5 volts at 1 ampere, enhances efficiency in circuits by minimizing power loss.
The diode features a recovery time of about 75 nanoseconds, allowing it to be used in high-frequency applications, such as in switch-mode power supplies. The 1N4937 is housed in a DO-41 package, which provides good thermal performance and is easily mountable on PCBs.
Common applications include rectification in power converters, protection circuits, and clamping applications. Its robust construction and reliable performance make it a popular choice among electronics engineers and hobbyists alike. Always refer to the manufacturer's datasheet for specific electrical characteristics and ratings when designing circuits.

Features

The 1N4937 is a silicon rectifier diode designed for various electronic applications. Key features include:
- Maximum Reverse Voltage (VR): 100V, suitable for applications requiring moderate voltage handling.
- Forward Current (IF): 1A, allowing it to handle typical current loads in power supply circuits.
- Forward Voltage Drop (VF): Approximately 0.9V at 1A, indicating low power loss during operation.
- Surge Current Rating (IFSM): Up to 30A, providing reliability under transient conditions.
- Package Type: Available in DO-41 (axial package), facilitating easy integration into circuits.
- Temperature Range: Operates effectively between -65°C to +150°C, making it suitable for diverse environmental conditions.
- Fast Recovery Time: Optimized for switching applications, allowing for efficient operation in high-frequency circuits.
These features make the 1N4937 ideal for use in power rectification, voltage clamping, and protection circuits across various electronic devices.

Package

The 1N4937 is typically packaged in a DO-41 (DO-204AL) glass package. This axial-lead diode package is commonly used for through-hole applications, featuring a cylindrical shape with leads on either end for easy mounting on printed circuit boards.

Pinout

The 1N4937 is a standard rectifier diode in a DO-41 package. It has two pins:
1. Anode (Pin 1) - The positive terminal where the current enters the diode.
2. Cathode (Pin 2) - The negative terminal marked with a band, where the current exits.
The 1N4937 is designed for general-purpose rectification applications, capable of handling a peak reverse voltage of 400V and a forward current of 1A. It is commonly used in power supplies, voltage regulation, and circuit protection. It allows current to flow in one direction while blocking it in the reverse direction, thereby converting alternating current (AC) to direct current (DC).

Manufacturer

The 1N4937 is a Schottky diode manufactured by several companies, with the most notable being ON Semiconductor and Vishay. These companies are part of the semiconductor industry, which specializes in manufacturing electronic components like diodes, transistors, and integrated circuits.
ON Semiconductor is a global supplier that focuses on energy-efficient solutions, serving various sectors including automotive, industrial, and consumer electronics. Vishay Intertechnology also operates in the semiconductor and passive components market, providing a wide range of products for diverse applications.
Both companies are known for their innovation and quality in the electronics field, contributing to advancements in technology across various industries.

Application

The 1N4937 is a standard rectifier diode commonly used in power supply circuits, specifically for converting alternating current (AC) to direct current (DC). Its application areas include power adapters, battery chargers, and various electronic devices requiring diode switching or protection. It is also utilized in signal detection and clipping circuits within audio equipment and other electronic applications.

Equivalent

The 1N4937 diode is a 40V, 1A Schottky rectifier. Equivalent products include:
- 1N5822
- 1N5819
- BAT54
- SR540
Always check specific datasheets for voltage, current ratings, and package type to ensure compatibility for your application.

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