1N4901A

Single Zener Diodes Overview

The 1N4901A is a temperature-compensated Zener diode with a nominal voltage of 12.8 V and a tolerance of ±5%. It features a maximum power dissipation of 400 mW and a maximum Zener impedance (Zzt) of 200 Ohms. The device operates within a temperature range of -55°C to +100°C and is housed in an axial DO-7 (DO-204AA) through-hole package.

Single Zener Diodes Feature Summary

• Temperature compensated design for stable voltage regulation
• Low noise performance characteristics
• Through-hole axial leaded construction

Single Zener Diodes Applications

• Precision voltage reference circuits
• Voltage regulation applications requiring low noise
• Temperature compensation networks

Single Zener Diodes Procurement Notes

Verify the manufacturer origin, as Microchip acquired assets from Microsemi which also produced this part. Confirm the specific datasheet version matches the required electrical tolerances and packaging details. Ensure the component is sourced from authorized distributors to guarantee authenticity and traceability for critical electronic assemblies.

Single Zener Diodes Selection Notes

Select this component when a stable 12.8 V reference is needed with minimal noise and temperature drift. The 400 mW power rating suits low-current applications. Compare against standard Zener diodes if temperature stability is not a primary requirement, noting that this specific series offers superior thermal performance over general-purpose variants.

Single Zener Diodes Part Context

This part belongs to the 1N4896(A) through 1N4915(A) series of temperature-compensated Zener diodes. These components are designed to provide a nominal 12.8 V output with improved stability compared to standard Zener diodes, making them suitable for precision analog circuits where voltage consistency across temperature variations is critical.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other manufacturers' 1N4901A equivalents such as those from Diotec or New Jersey Semi-Conductor. Verify that replacement parts maintain the same 12.8 V nominal voltage, ±5% tolerance, and DO-7 package dimensions to ensure mechanical and electrical compatibility.