1N4578

Single Zener Diodes Overview

The Microchip Technology 1N4578 is a 6.4 V temperature compensated Zener reference diode housed in a DO-7 (DO-204AA) glass axial-leaded package. It operates with a test current of 2.0 mA and features a maximum voltage temperature coefficient of 0.001%/°C (0.06 mV/°C). The device supports a DC power dissipation of 500 mW at 25°C, with a maximum reverse current of 2 µA at 3 V and a dynamic impedance of 50 Ohms at the test current. It functions within an operating temperature range of 0°C to +75°C.

Single Zener Diodes Feature Summary

• Provides minimal voltage change over a broad operating temperature range for instrumentation applications
• Features internal metallurgical bonding for enhanced reliability
• Offers flexible axial-leaded mounting terminals suitable for through-hole integration

Single Zener Diodes Applications

• Precision instrumentation circuits requiring stable voltage references
• Electronic designs demanding low voltage drift across temperature variations
• Temperature-compensated reference sources for analog signal processing

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements against your design needs, as ordering options include tape and reel packaging or military qualifications like JAN, JANTX, and JANTXV prefixes. Confirm that the standard JEDEC registered version meets your environmental specifications before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a nominal 6.4 V reference with a 0.001%/°C temperature coefficient is required. Ensure the circuit design accommodates the specified 2.0 mA test current to maintain optimal voltage-temperature stability and stay within the recommended power dissipation limits below 30 mW for best performance.

Single Zener Diodes Part Context

This part belongs to the popular 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, all centered around a 6.4 V nominal voltage, serving as a foundational component for high-stability voltage regulation tasks.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers are not explicitly listed in the provided documentation.