1N5242B

Single Zener Diodes Overview

The SMC Diode Solutions 1N5242B is a single Zener diode designed for through-hole mounting in the DO-204AH (DO-35) axial package. It features a nominal Zener voltage of 12 V with a tolerance of ±5% and a maximum power dissipation of 500 mW. The device exhibits a maximum reverse leakage current of 1 µA at 9.1 V and a Zener impedance of 30 Ohms. It operates within a junction temperature range of -65°C to 175°C, ensuring reliability across diverse environmental conditions.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation via Zener breakdown characteristics
• Constructed with silicon material for robust performance
• Features unidirectional polarity configuration

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection stages
• Clipping and clamping applications

Single Zener Diodes Procurement Notes

Verify the specific manufacturer designation when sourcing, as multiple vendors produce this standard part number. Confirm RoHS compliance status and packaging options such as cut tape or bulk against project requirements. Ensure the supplier provides valid datasheets matching the 12V 500mW specifications before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component for designs requiring a 12 V reference in through-hole layouts. Compare its 30 Ohm impedance against circuit sensitivity needs. Evaluate the 500 mW thermal limit against expected operating currents. Consider the DO-35 footprint constraints relative to available board space.

Single Zener Diodes Part Context

This component belongs to the standard 1N52xx series of low-power Zener diodes. It serves as a fundamental discrete semiconductor element for basic voltage control tasks. The DO-35 package offers a compact solution for general-purpose electronics where surface-mount alternatives are not mandated by assembly processes.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers include 1N759A from Central Semiconductor Corp.