1N4913A

Overview

The 1N4913A is a temperature-compensated Zener reference diode manufactured by Microchip Technology. It provides a stable voltage reference of 12.8 V with a power dissipation rating of 400 mW. The device is designed for low-noise applications and features a tolerance of ±5%. It is housed in a DO-7 through-hole package, suitable for general-purpose circuitry requiring precise voltage regulation.

Feature Summary

• Temperature compensated design for stable voltage reference
• Low noise characteristics for precision applications
• Through-hole DO-7 package for standard mounting

Applications

• Precision voltage reference circuits
• Low noise analog signal processing
• Temperature stable regulator designs

Procurement Notes

Verify the specific suffix (e.g., /TR) against the datasheet to confirm packaging type and availability. Ensure RoHS compliance status matches project requirements. Cross-reference the manufacturer part number with authorized distributors to confirm current stock levels and lead times before ordering.

Selection Notes

Select this component when a stable 12.8 V reference with low noise is required. Consider the DO-7 package constraints for PCB layout. Verify thermal management needs for 400 mW dissipation. Compare performance against other Zener diodes if tighter tolerances or different voltages are needed.

Part Context

This component belongs to the family of temperature-compensated Zener reference diodes. These devices are engineered to minimize voltage drift over temperature variations, making them superior to standard Zener diodes for precision applications. They are commonly used in instrumentation and measurement equipment.

Replacement Considerations

Check for direct substitutes from Microchip or compatible manufacturers offering 12.8 V, 400 mW, DO-7 packages. Verify electrical parameters such as impedance and noise levels match original specifications.