1N4574A

Single Zener Diodes Overview

The Microchip Technology 1N4574A is a 6.4 V temperature compensated Zener reference diode housed in a DO-7 (DO-204AA) glass axial-leaded package. It operates at a test current of 1.0 mA with a maximum reverse current of 2 µA at 3 V and a dynamic impedance of 100 Ohms. The device features a nominal voltage tolerance of ±5% and a temperature coefficient range of 0.0005%/°C to 0.03 mV/°C. It supports an operating temperature range from -55°C to +100°C, dissipates up to 500 mW DC power, and withstands solder temperatures of 260°C for 10 seconds.

Single Zener Diodes Feature Summary

• Provides minimal voltage change over a broad operating temperature range
• Features internal metallurgical bonding for enhanced reliability
• Offers flexible axial-leaded mounting terminals
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Single Zener Diodes Applications

• Instrumentation requiring stable voltage references
• Circuit designs demanding low voltage drift with temperature
• Military qualification applications via JAN/JANTX prefixes

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements for military qualifications or tighter voltage tolerances before ordering. Confirm that the DO-7 package aligns with your PCB footprint constraints. Ensure the operating test current matches the specified 1.0 mA for optimal voltage-temperature stability. Check datasheet notes regarding radiation hardened variants if applicable to your environment.

Single Zener Diodes Selection Notes

Select this component when a precise 6.4 V reference with ultra-low temperature drift is required. Compare against other series members based on specific temperature coefficient needs ranging from 0.01%/°C down to 0.0005%/°C. Consider the 1.0 mA test current requirement versus alternatives offering 0.5 mA, 2.0 mA, or 4.0 mA options. Evaluate the DO-7 package size against available board space.

Single Zener Diodes Part Context

This part belongs to the 1N4565 through 1N4584A-1 series of Zero-TC Reference Diodes manufactured by Microsemi's Scottsdale Division. The series provides various temperature coefficients and operating currents while maintaining a consistent 6.4 V nominal voltage. These devices are JEDEC registered and designed for high-reliability applications requiring stable reference voltages across wide temperature ranges.

Single Zener Diodes Replacement Considerations

JAN1N4574A-1, JANTX1N4574A-1, JANTXV1N4574A-1.