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onsemi 20 V Nominal Zener Diode Single 1 W Power Dissipation Through Hole DO-41 1N4747A

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onsemi 20 V Nominal Zener Diode Single 1 W Power Dissipation Through Hole DO-41 1N4747A

Name: onsemi 20 V Nominal Zener Diode Single 1 W Power Dissipation Through Hole DO-41 1N4747A
Brand: onsemi
SKU: 304017
Price: 0.05 USD
Availability: InStock

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Category Zener Diodes Brand onsemi Condition New

Specifications

Country of Origin	China
Brand	onsemi
Height	2.72mm
Length	5.2mm
Model	1N4747A
Finish	All external surfaces are corrosion resistant and leads are readily solderable
Mount Type	Through Hole
Series	1N47
Maximum Operating Temperature	200°C
Case	Double slug type, hermetically sealed glass
Package Type	DO-41
Minimum Operating Temperature	-65°C
Polarity	Cathode indicated by polarity band
Mounting Position	Any
Pin Count	2
Number of Elements per Chip	1
Maximum Power Dissipation Pd	1W
Diode Configuration	Single
Test Current It	12.5mA
Maximum Reverse Leakage Current	5μA
Nominal Zener Voltage Vz	20V
Zener Type	General Purpose
Maximum Zener Impedance	22Ω
MAXIMUM LEAD TEMPERATURE FOR SOLDERING PURPOSES	230°C, 1/16" from the case for 10 seconds

Key Features

The diode features a 5% Zener voltage tolerance for precise voltage regulation.
It is designed with a glass hermetically sealed axial-lead package, ensuring durability and corrosion resistance.
The device operates reliably over a temperature range from -65°C to 200°C.
The diode provides low maximum reverse leakage current of 5 microamperes, enhancing efficiency.
The package is corrosion resistant with readily solderable leads rated for a maximum lead temperature of 230°C for 10 seconds.
Cathode polarity is clearly indicated by a polarity band for correct installation.
The diode’s maximum Zener impedance is 22 ohms at a test current of 12.5 mA, suitable for stable voltage regulation.
It is intended for use in power and control circuits requiring reliable voltage reference and protection.

Product Description

onsemi 1N4747A Zener Diode is a single-element general purpose semiconductor diode with a nominal Zener voltage of 20 V and maximum power dissipation of 1 W, housed in a durable DO-41 hermetically sealed glass package.

This diode series is designed with silicon-oxide passivated junctions offering superior operating characteristics and environmental protection, suitable for industrial, electronics, and power regulation applications.

The axial-lead DO-41 package ensures corrosion resistance and ease of soldering, with leads rated to withstand 230°C soldering temperature at a safe distance from the case. The device operates reliably across a wide temperature range from -65°C to 200°C, making it robust for harsh environments.

Key electrical parameters include a test current of 12.5 mA, maximum Zener impedance of 22 ohms, and a low reverse leakage current of 5 µA, contributing to stable performance in voltage regulation and protection circuits.

The diode configuration is single element. Nominal Zener Voltage: 20 V with ±5% tolerance. Maximum Power Dissipation: 1 watt. Package Type: DO-41 hermetically sealed glass. Pin Count: 2. Mount Type: Through Hole. Polarity clearly marked with a cathode band.

Operating temperature range from -65°C to 200°C. Corrosion-resistant finish and readily solderable leads. Mounting position: any orientation.

This 1N4747A diode is widely used in electronics for voltage reference, voltage regulation, and overvoltage protection in industrial equipment, power supplies, communication devices, and other commercial electronic systems.

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