1N4470/TR

Single Zener Diodes Overview

The Microchip Technology 1N4470/TR is a 1.5-watt Zener voltage regulator diode housed in a DO-41 axial lead package. It provides a nominal Zener voltage of 16 V with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C and features a maximum dynamic impedance of 10 Ohms at the test current of 15.5 mA. It includes a maximum reverse leakage current of 50 nA and supports a maximum continuous current of 90 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass construction with internal metallurgical bonds for robust performance.
• Qualified per MIL-PRF-19500/406 standards, suitable for high-reliability applications where failure is not tolerated.
• Inherently radiation hard and non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 method 1020.

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability military and aerospace electronic circuits
• Temperature compensated reference designs

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required reliability level and RoHS compliance status. Confirm the package type corresponds to the intended mounting style. Ensure the requested quantity aligns with factory packaging requirements. Check for any specific environmental or qualification certifications needed for the application.

Single Zener Diodes Selection Notes

Select this component when a 1.5-watt power rating and 16-volt regulation are required. Consider the wide operating temperature range for harsh environments. Evaluate the need for hermetic sealing and radiation hardness. Compare against other series members if different voltage levels are necessary.

Single Zener Diodes Part Context

This part belongs to the 1N4460 through 1N4496 series of industry-recognized Zener voltage regulators. These devices offer selections from 3.3 to 200 volts with standard 5% tolerance. Tighter tolerances are available via specific suffixes. The series is designed for both commercial and military-grade applications.

Single Zener Diodes Replacement Considerations

Equivalent parts include JAN1N4470, JANTX1N4470, and JANTXV1N4470. Verify compatibility regarding package dimensions and electrical characteristics before substitution.

Single Zener Diodes FAQ

Is the 1N4470/TR radiation hard?

Yes, the device is inherently radiation hard as described in Microsemi MicroNote 050.

What is the maximum forward voltage?

The maximum forward voltage is 1.0 V at 200 mA and 1.5 V at 1.0 A.