1N4729AP/TR8

Overview

The Microsemi Corporation 1N4729AP/TR8 is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 3.6 V with a tolerance of ±5%. The device is rated for a power dissipation of 1 W and operates within a temperature range from -65 °C to +175 °C. Packaged in the DO-41 axial leaded format, it is supplied in tape and reel quantities suitable for automated surface mount or through-hole assembly processes.

Feature Summary

• Provides stable voltage regulation across a wide operating temperature range
• Utilizes a rugged DO-41 plastic encapsulated package for reliable performance
• Offers precise voltage tolerance for accurate circuit reference requirements

Applications

• Voltage regulation circuits
• Clipping and clamping applications
• Reference voltage sources

Procurement Notes

Verify the specific suffix TR8 indicates tape and reel packaging configuration. Confirm RoHS compliance status as standard variants may differ. Ensure the supplier provides official Microsemi documentation to validate the part number authenticity and manufacturing origin before finalizing procurement orders.

Selection Notes

Select this component when a 3.6 V regulated supply is required with high thermal stability. The DO-41 package suits through-hole designs, while the reel packaging supports high-volume automated assembly. Verify that the 1 W power rating meets the thermal dissipation needs of the target application environment.

Part Context

This component belongs to the JEDEC registered 1N4729A series of Zener diodes. The 'P' prefix typically denotes a plastic DO-41 package variant, while 'TR8' specifies the reel packaging format. This series is widely used for general-purpose voltage regulation tasks requiring moderate power handling capabilities.

Replacement Considerations

Compatible substitutes include Vishay 1N4729A-TR and MCC 1N4729A-TP, which share identical electrical specifications and DO-41 packaging. Cross-reference datasheets to ensure equivalent impedance and leakage current characteristics match the original design requirements.