1N4759P/TR8

Overview

The Microchip Technology 1N4759P/TR8 is a silicon 1-watt Zener diode in the 1N4728AP through 1N4764AP series. It provides voltage regulation at a nominal Zener voltage of 62 volts with a standard tolerance of plus or minus 5%. The device operates within an ambient temperature range of -65°C to +150°C and features a plastic encapsulated DO-41 package. Electrical characteristics include a maximum dynamic impedance of 125 ohms at a test current of 4 mA, a maximum reverse current of 5 µA, and a steady-state power dissipation of 1.0 watts.

Feature Summary

• Plastic molded epoxy body offering lower thermal resistance compared to glass-body options
• Moisture classification Level 1 requiring no dry pack storage
• Flexible axial-lead mounting terminals for standard installation

Applications

• Voltage regulation over broad operating current and temperature ranges
• Power supply circuit protection
• Reference voltage generation

Procurement Notes

Verify that the ordering suffix TR8 corresponds to the tape and reel packaging option described in the datasheet as adding a TR suffix. Confirm the manufacturer designation aligns with the provided source documentation from Microsemi Scottsdale Division. Ensure the component matches the specific JEDEC type number requirements for your design specifications before finalizing procurement.

Selection Notes

Select this component when a 62-volt regulation point is required with a 5% tolerance. The plastic construction is suitable for applications needing lower thermal resistance than glass equivalents. Verify that the 125 ohm dynamic impedance and 5 µA reverse current meet the leakage and stability requirements of the target circuit design.

Part Context

This part belongs to the 1N4728AP through 1N4764AP series of 1.0 watt Zener diodes manufactured by Microsemi. The series covers a voltage selection from 3.3 to 100 volts. The P suffix indicates plastic construction, while the G suffix denotes glass body options. These devices are JEDEC registered and available in various screening levels.

Replacement Considerations

Surface mount equivalents such as SMAJ4759A and MLL4759A are available from the same manufacturer family.