1N3518A

Single Zener Diodes Overview

The Microchip Technology 1N3518A is a single Zener diode housed in the DO-204AH (DO-35) axial through-hole package. It features a nominal Zener voltage of 1 V with a tolerance of ±5%. The device supports a maximum power dissipation of 500 mW and exhibits a maximum Zener impedance of 7 Ohms. It operates within a temperature range of -65°C to +175°C. Forward voltage is specified as 1.1 V at a forward current of 200 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation at low voltage levels for precision reference applications
• Engineered for high reliability with metallurgical bonding and double plug construction
• Capable of operation across an extended industrial temperature range

Single Zener Diodes Applications

• Voltage reference circuits requiring low voltage stability
• Temperature compensated Zener reference designs
• Low noise voltage regulation systems

Single Zener Diodes Procurement Notes

Verify compliance requirements prior to procurement, as this component does not meet RoHS standards. Confirm that the specific application environment accommodates the non-RoHS material composition. Ensure supply chain sources provide authentic Microchip Technology products to guarantee performance specifications and long-term reliability in critical systems.

Single Zener Diodes Selection Notes

Select this component when a precise 1 V reference is required in a standard axial leaded package. Consider the 500 mW power rating and 7 Ohm impedance for circuit design constraints. Verify compatibility with operating temperatures up to 175°C. Evaluate alternative voltages within the 1N3506A through 1N3534A series if different reference levels are needed.

Single Zener Diodes Part Context

The 1N3518A belongs to the 1N3506A through 1N3534A family of 400 mW Zener voltage regulator diodes manufactured by Microchip Technology. This series is characterized by low noise and temperature compensation, making it suitable for sensitive analog applications. The devices utilize double plug construction for enhanced durability and consistent electrical performance over time.

Single Zener Diodes Replacement Considerations

Direct substitutes include the 1N5736B and 1N6000B from Microchip Technology. Verify pinout compatibility and electrical parameter alignment before substitution.