1N3314B

Overview

The Microchip Technology 1N3314B is a high-power 50 W Zener diode from the JEDEC registered 1N3305 through 1N3350B series. It provides voltage regulation with a nominal Zener voltage of 15 V at a test current of 830 mA and a maximum DC Zener current of 2,800 mA. The device features a standard tolerance of ±5% and operates within a junction temperature range of -65°C to +175°C. Packaged in a hermetically sealed DO-5 (DO-203AB) metal and glass case with an 11/16 inch hexagonal stud, it utilizes internal solder bond construction for robust performance.

Feature Summary

• Hermetically sealed welded metal and glass construction
• Internal solder bond assembly
• Standard polarity configuration with anode connected to the case
• Radiation hard design

Applications

• High power voltage regulation
• Industrial control systems
• Military applications requiring MIL-PRF-19500/358 screening

Procurement Notes

Verify that the component matches the specific Microsemi/Microchip datasheet specifications for the 1N3314B. Confirm the package type is DO-5 and check for any required military qualification prefixes if applicable. Ensure mounting hardware compatibility with the hexagonal stud is addressed during integration.

Selection Notes

Select this component when a 50 W power dissipation capability is required alongside a 15 V regulation point. Consider the thermal resistance characteristics and the necessity for a stud-mounted installation. Evaluate the need for radiation hardness or specific military screening levels before finalizing the part number.

Part Context

This component belongs to the 1N3305 through 1N3350B series of high-power Zener diodes manufactured by Microchip Technology's Scottsdale Division. These devices are designed for demanding environments where reliable voltage regulation and high power handling are critical requirements.

Replacement Considerations

Equivalent parts include the 1N3314A and 1N3314RA variants within the same series.