1N3524A

Single Zener Diodes Overview

The Microchip Technology 1N3524A is a Zener voltage regulator diode designed for through-hole mounting in the DO-35 axial leaded package. It provides a nominal Zener voltage of 18 V with a tolerance of ±5%. The device features a maximum DC power dissipation of 500 mW and operates within a junction temperature range of -65°C to +175°C. Key electrical characteristics include a maximum Zener impedance of 12 Ohms at a test current of 14 mA, a forward voltage of 1.1 V at 200 mA, and a maximum reverse leakage current of 1 µA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation via Zener breakdown mechanism
• Capable of handling high thermal loads up to 175°C junction temperature
• Offers precise voltage tolerance for reference applications

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the specific suffix (e.g., A, B) against the datasheet to ensure correct voltage tolerance and impedance specifications. Confirm RoHS compliance status as older revisions may not meet current environmental standards. Check for available direct replacements if the primary part is discontinued or has long lead times.

Single Zener Diodes Selection Notes

Select this component when a 18 V regulated voltage is required in a low-power application. Ensure the circuit design accounts for the 500 mW power dissipation limit and the operating temperature range. Verify that the DO-35 package fits the PCB layout constraints and that the Zener impedance meets the noise requirements of the application.

Single Zener Diodes Part Context

This component belongs to the standard 1N series of Zener diodes manufactured by Microchip Technology. These devices are widely used in general-purpose electronics for voltage regulation and protection. The 1N3524A specifically targets applications requiring an 18 V reference point with moderate precision.

Single Zener Diodes Replacement Considerations

• 1N5540B

Single Zener Diodes FAQ

What is the maximum power dissipation of the 1N3524A?

The maximum DC power dissipation is 500 mW at an ambient temperature of +125°C.

What is the operating temperature range?

The junction and storage temperature range is from -65°C to +175°C.