1N4462US

Single Zener Diodes Overview

The Microchip Technology 1N4462US is a surface mount Zener voltage regulator with a nominal breakdown voltage of 7.5V and a maximum steady-state power dissipation of 1.5W at 25°C ambient temperature. It features a voidless hermetically sealed glass package (D-5A MELF) with an internal metallurgical bond, qualified to MIL-PRF-19500/406 for JAN, JANTX, JANTXV, and JANS reliability levels. The device operates within a junction and storage temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Voidless hermetically sealed glass construction with tungsten slugs
• Internal metallurgical bonding for enhanced structural integrity
• Triple-layer passivation for robust protection
• Inherently radiation hard design

Single Zener Diodes Applications

• High-reliability military applications where failure cannot be tolerated
• Voltage regulation over broad operating current and temperature ranges
• Circuits requiring inherent radiation hardness

Single Zener Diodes Procurement Notes

Verify the specific reliability level suffix (JAN, JANTX, JANTXV, or JANS) required for your application, as these denote different qualification standards under MIL-PRF-19500/406. Confirm RoHS compliance status if applicable, noting that compliant versions are available only in commercial grade. Ensure the ordering part number matches the exact tolerance and package requirements specified in the datasheet.

Single Zener Diodes Selection Notes

Select this component for surface mount designs requiring high-power density and extreme environmental resilience. The D-5A MELF package offers a compact footprint suitable for space-constrained boards. Consider the thermal impedance characteristics when designing heat dissipation paths, as the device relies on the end cap for thermal management during operation.

Single Zener Diodes Part Context

This device belongs to the 1N4460US through 1N4496US series of 1.5-watt Zener diodes. It serves as the surface mount equivalent to traditional axial-lead JEDEC registered series, providing similar electrical performance in a modern SMT form factor. The series covers a wide voltage range from 3.3V to 200V, allowing for standardized design approaches across various voltage regulation needs.

Single Zener Diodes Replacement Considerations

Direct replacements include other members of the 1N446xUS series with matching voltage ratings. For axial lead equivalents, consult the 1N4460–1N4496 series documentation. Verify that any substitute meets the same MIL-PRF-19500/406 qualification level and thermal resistance specifications.