1N4465US

Single Zener Diodes Overview

The Microchip Technology 1N4465US is a surface mount Zener voltage regulator diode housed in a D-5A (MELF) package. It features a nominal Zener voltage of 10.0 V with a standard tolerance of ±5%. The device operates within a junction temperature range of -65°C to +175°C and dissipates up to 1.5 W at 25°C ambient temperature. Electrical characteristics include a test current of 25.0 mA, a maximum dynamic impedance of 5 Ohms at IZT, and a maximum reverse leakage current of 500 µA at 8.00 V.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass construction using internal metallurgical bonds for robustness.
• Qualified per MIL-PRF-19500/406 for high-reliability applications where failure cannot be tolerated.
• Inherently radiation hard as described in Microsemi MicroNote 050.
• Non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 method 1020.

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges.
• High-reliability military and aerospace circuits requiring hermetic sealing.
• Radiation-hardened electronic systems.

Single Zener Diodes Procurement Notes

Verify the specific reliability level required, such as JAN, JANTX, JANTXV, or JANS, as these designations affect qualification standards. Confirm RoHS compliance status, noting that compliant versions are available only on commercial grade parts. Ensure the ordering suffix matches the desired tolerance and packaging configuration before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 1.5 W surface mount Zener diode with hermetic sealing is necessary. The 1N4465US provides a 10.0 V reference point suitable for precision regulation. Consider the thermal resistance and derating curves if operating near maximum power dissipation limits. Verify that the MELF package dimensions fit the intended PCB layout constraints.

Single Zener Diodes Part Context

This part belongs to the 1N4460US through 1N4496US series of voidless hermetically sealed surface mount Zener diodes. These devices serve as the surface mount equivalent of popular JEDEC registered axial-lead series. The series offers extensive voltage selections from 3.3 to 200 volts with various tolerance options.

Single Zener Diodes Replacement Considerations

Direct replacements include other members of the 1N446xUS series for different voltage ratings. Axial-lead equivalents like the 1N4465 may be used if through-hole mounting is acceptable. Ensure any substitute maintains the required hermetic seal and military qualification levels if applicable.