1N4748A_S00Z

Overview

The onsemi 1N4748A_S00Z is a silicon glass passivated junction Zener diode with a nominal voltage of 22 V and a tolerance of ±5%. It operates in the DO-41 axial package, providing a maximum power dissipation of 1.0 W at lead temperatures up to 50°C. The device features a test current of 11.5 mA, a maximum dynamic impedance of 23 Ω, and a leakage current of 5 µA at 16.7 V. It supports an operating and storage temperature range from -65°C to +200°C.

Feature Summary

• Glass passivated junction construction for excellent stability
• Hermetically sealed design with double studs
• Built-in strain relief mechanism

Applications

• Voltage regulation circuits
• Reference voltage sources
• Surge protection applications

Procurement Notes

Verify that the S00Z suffix corresponds to the specific reel packaging configuration defined by onsemi. Confirm RoHS compliance status as standard versions may not meet environmental directives. Validate the manufacturer part number against official datasheets before procurement to ensure correct electrical characteristics and marking alignment.

Selection Notes

Select this component when a stable 22 V reference is required in through-hole designs. Ensure the circuit can handle the 1.0 W power rating and derating above 50°C. Verify that the 23 Ω impedance meets the ripple rejection requirements of the application.

Part Context

This component belongs to the 1N47xx series of 1-watt Zener diodes manufactured by onsemi. The series covers a wide voltage range from 3.3 V to 100 V in 5% tolerances. These devices are widely used in general-purpose electronics requiring reliable voltage clamping or regulation in axial packages.

Replacement Considerations

Compatible substitutes include the Microchip 1N4748A and Transys Electronics 1N4748A. Both offer identical 22 V specifications and DO-41 packaging. Verify pinout orientation and thermal characteristics match the original design constraints.