UM9301F

RF Diode Overview

The UM9301F is a silicon PIN diode manufactured by Microchip Technology, designed for high-reliability applications. It features a hermetic MELF package and operates in a single configuration. The device supports a reverse voltage of 100 V and a forward current of 1.1 mA. Reverse current is specified at 10 mA, with a power dissipation rating of 1 W. It functions within a temperature range from -65 C to +175 C and utilizes through-hole mounting.

RF Diode Feature Summary

• Hermetic sealing ensures environmental protection and long-term reliability
• Silicon PPIN technology provides stable switching performance
• Wide thermal operating range suitable for extreme conditions

RF Diode Applications

• High-reliability RF switching circuits
• Attenuator modules requiring stable impedance control
• Military and aerospace communication systems

RF Diode Procurement Notes

Verify the specific ordering suffix and revision level against the latest Microchip datasheet before procurement. Confirm that the hermetic MELF package meets the mechanical constraints of the target assembly. Ensure that the through-hole mounting requirements align with the printed circuit board design specifications.

RF Diode Selection Notes

Select this component when hermetic sealing and wide temperature operation are mandatory. The 100 V reverse voltage rating suits moderate voltage switching applications. Verify that the 1.1 mA forward current capability meets the signal path requirements. Consider the through-hole package form factor for manual or wave soldering processes.

RF Diode Part Context

This part belongs to the Microchip UM series of hermetic PIN diodes. These components are engineered for defense and space-grade electronics where standard commercial packages fail under harsh environmental stress. The series offers consistent electrical characteristics across extended temperature ranges.

RF Diode Replacement Considerations

Direct substitutes must match the hermetic MELF footprint and 100 V reverse voltage rating. Verify that alternative parts maintain the same through-hole mounting style and silicon PPIN construction. Cross-reference thermal resistance and capacitance values to ensure circuit compatibility.