1N6341US

Overview

The Microchip Technology 1N6341US is a military-qualified Zener voltage regulator diode designed for high-reliability applications. It features a voidless hermetically sealed glass package with internal metallurgical bonds, ensuring robust construction. The device operates within a junction and storage temperature range of -65 to +175 °C and provides a nominal Zener voltage of 51.0 V at a test current of 2.5 mA. It supports a maximum steady-state power dissipation of 0.5 W and includes surge current capability.

Feature Summary

• Hermetically sealed voidless hard glass package with tungsten slugs
• Internal Category III metallurgical bonds for enhanced reliability
• Qualified per MIL-PRF-19500/533 for JAN, JANTX, JANTXV, and JANS levels
• Non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 method 1020

Applications

• High-reliability voltage regulation where failure cannot be tolerated
• Military and aerospace electronic systems requiring radiation hardness
• Small surface mount Melf (D Package) circuit designs

Procurement Notes

Verify the specific reliability level (JAN, JANTX, JANTXV, or JANS) required for your application, as these levels are available separately. Confirm RoHS compliance status if environmental regulations apply, noting that RoHS compliant versions are available on commercial grade only. Ensure the ordering suffix matches the desired voltage tolerance and packaging configuration.

Selection Notes

Select this component when a 51.0 V Zener reference is needed in a surface-mount form factor equivalent to the axial-leaded 1N6341 series. Consider the thermal resistance values (RθJEC and RθJA) for derating calculations based on end-cap or ambient temperature conditions. Verify that the operating current remains within the specified limits to maintain accurate voltage regulation across the wide temperature range.

Part Context

This part belongs to the 1N6309US through 1N6355DUS series of 0.5 watt Zener voltage regulators. The series offers Zener selections from 2.4 to 200 volts with standard 5% tolerances and tighter 1% and 2% options. These industry-recognized devices are ideal for applications requiring robust, hermetically sealed components in both surface mount and axial leaded packages.

Replacement Considerations

The 1N6341US serves as the surface mount MELF equivalent to the JEDEC registered axial-leaded 1N6341. When replacing, ensure the substitute maintains the same voltage tolerance and reliability qualification level. Verify that the replacement package dimensions fit the existing footprint, as the MELF package has specific terminal and body size constraints.