SM1002-M1

RF Diode Overview

The SM1002-M1 is a silicon PIN diode manufactured by Microchip Technology, housed in a hermetic Melf package. It features a maximum reverse voltage of 500 V and a maximum forward current of 100 mA. The device has a maximum diode capacitance of 500 fF and a maximum series resistance of 700 mΩ at mid-frequency. It operates within a temperature range of -55°C to +150°C and supports frequencies up to 2 GHz. The carrier lifetime is specified as 1 μs.

RF Diode Feature Summary

• Hermetic sealing for environmental protection
• High reverse voltage capability
• Low capacitance design

RF Diode Applications

• RF switching applications
• Attenuator circuits
• High frequency signal processing

RF Diode Procurement Notes

Verify the specific ordering suffix and manufacturer part number against official Microchip documentation before procurement. Confirm that the hermetic Melf package meets the environmental requirements of the target application. Ensure compatibility with surface mount assembly processes suitable for this component type.

RF Diode Selection Notes

Select this component when high reliability and hermetic sealing are required for RF or microwave circuits. Consider the 500 V reverse voltage rating and low capacitance characteristics for high-frequency performance. Verify that the 100 mA forward current and thermal operating limits suit the system's power dissipation needs.

RF Diode Part Context

This part belongs to Microchip's line of silicon PIN diodes designed for high-reliability applications. The hermetic Melf package distinguishes it from standard non-hermetic variants, offering enhanced durability in harsh environments. It serves as a specialized component for critical RF systems requiring stable electrical characteristics over wide temperature ranges.

RF Diode Replacement Considerations

Check for direct substitutes with identical hermetic Melf packaging and matching electrical parameters such as 500 V reverse voltage and 500 fF capacitance. Ensure any replacement maintains the same carrier lifetime and series resistance specifications for circuit compatibility.