1N3518A/TR

Single Zener Diodes Overview

The Microchip Technology 1N3518A/TR is a single Zener voltage regulator diode housed in a DO-35 axial through-hole package. It features a nominal Zener voltage of 10 V with a tolerance of ±5%, measured at a test current of 10 mA. The device has a maximum Zener impedance of 7 Ohms and a DC power dissipation rating of 400 mW. It operates within a junction temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass case construction for environmental stability
• Temperature compensated Zener reference design
• Low noise performance characteristics

Single Zener Diodes Applications

• Voltage regulation circuits
• Precision voltage reference applications
• Overvoltage protection stages

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against manufacturer documentation, as it dictates packaging format such as reel or cut tape quantities. Confirm RoHS compliance status directly with the supplier, as datasheets indicate non-compliance for certain variants. Ensure the component matches the required hermetic seal specifications for your assembly process.

Single Zener Diodes Selection Notes

Select this component when a stable 10 V reference is required in a standard DO-35 footprint. Consider the 400 mW power dissipation limit and the 7 Ohm impedance value for circuit stability. Verify that the operating temperature range meets the thermal requirements of the final application environment.

Single Zener Diodes Part Context

This part belongs to the 1N3506A through 1N3534A series of 400 mW Zener voltage regulator diodes manufactured by Microchip Technology. The series utilizes metallurgically bonded double plug construction within a hermetically sealed glass case to ensure reliability across wide temperature ranges.

Single Zener Diodes Replacement Considerations

Direct substitutes include other 1N3518A variants from different manufacturers that match the 10 V Zener voltage, 400 mW power rating, and DO-35 package dimensions. Verify electrical parameters such as impedance and tolerance before substitution.