1N5918P/TR8

Single Zener Diodes Overview

The Microchip Technology 1N5918P/TR8 is a 1.5-watt Zener diode in the JEDEC registered 1N5913B-5956B series, housed in an axial-lead DO-41 package with tape and reel packaging. It provides voltage regulation at a nominal Zener voltage of 5.1 V with a 5% tolerance. The device operates within a junction temperature range of -65°C to +175°C and features a maximum dynamic impedance of 4 Ohms at a test current of 73.5 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed glass encapsulation for high reliability
• Flexible axial-lead mounting terminals
• Metallurgically enhanced internal contact design
• Radiation hard construction

Single Zener Diodes Applications

• Voltage regulation over broad operating currents
• High reliability electronic circuits
• Harsh environment applications

Single Zener Diodes Procurement Notes

Verify that the specific part number suffix matches the required screening level and RoHS compliance status. Confirm the presence of the TR suffix indicates tape and reel packaging rather than bulk supply. Ensure the ordering code aligns with the desired voltage tolerance and manufacturer lot traceability requirements.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed glass body is required for superior thermal resistance and environmental protection compared to plastic alternatives. Consider the 1.5-watt power dissipation rating and the specific 5.1 V breakdown voltage characteristics for circuit design compatibility.

Single Zener Diodes Part Context

This component belongs to the 1N5913BG through 1N5956BG series of 1.5-watt glass Zener diodes manufactured by Microsemi (now Microchip Technology). The series covers a wide voltage range from 3.3 V to 200 V with various tolerance options available for different regulatory needs.

Single Zener Diodes Replacement Considerations

Equivalent parts include other 1N5918 variants such as 1N5918BP or 1N5918G, provided they match the 5.1 V specification and package type. Verify that any substitute maintains the same hermetic sealing and power dissipation ratings.