1N4730A-T

Overview

The 1N4730A-T is a discontinued 1.0W Zener diode manufactured by Diodes Incorporated in the DO-41 glass package. It features a nominal Zener voltage of 3.9V with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C and includes lead-free finish compliant with RoHS directives.

Feature Summary

• Provides stable voltage regulation at 3.9V with a 1.0W power dissipation rating
• Constructed with hermetically sealed glass compression bonded technology for corrosion resistance
• Features solderable terminals compatible with MIL-STD-208 standards

Applications

• Voltage stabilization circuits
• Signal clipping applications
• Reference voltage generation

Procurement Notes

This component is officially marked as obsolete with no alternate part available from the manufacturer. Verification of current availability requires checking distributor archives or secondary markets, as direct procurement from Diodes Incorporated is not possible.

Selection Notes

Designers should note that this specific variant utilizes the -T suffix indicating tape and reel packaging. Selection must account for the discontinued status and ensure compatibility with existing DO-41 through-hole footprints if replacement sourcing is pursued externally.

Part Context

Part of the 1N4728A through 1N4761A series offering extensive voltage selection from 3.3V to 75V. The series is characterized by silicon planar construction and is designed for general-purpose voltage regulation tasks requiring robust thermal performance.

Replacement Considerations

No official substitute is provided by the manufacturer. External equivalents may exist but require independent verification of electrical parameters and mechanical dimensions.