SMP1331-087LF

RF Diode Overview

The SMP1331-087LF is a surface-mountable silicon PIN diode designed for high-power, series-connected applications from 10 MHz to beyond 6 GHz. It features a maximum reverse voltage of 200 V and a forward current rating of 200 mA. The device dissipates up to 0.75 W at 85 °C and handles 45 W CW in transmit/receive switches. Electrical specifications include a typical series resistance of 0.50 Ω at 100 mA and a maximum total capacitance of 0.35 pF at 30 V. It utilizes a 2-QFN (2x2 mm) package with an exposed pad.

RF Diode Feature Summary

• High RF power handling capability of 45 W
• Low thermal resistance of 26 °C/W
• Low series resistance of 0.50 Ω typical at 100 mA
• Low total capacitance of 0.35 pF maximum at 30 V

RF Diode Applications

• Low-loss, high-power switches
• Low-distortion attenuators
• Transmit/receive (T/R) switches

RF Diode Procurement Notes

Verify the component against the official Skyworks Solutions datasheet document number 203589B. Confirm that the physical marking matches the specified part identification code. Ensure compliance with RoHS3 standards and verify the Moisture Sensitivity Level 1 rating before soldering assembly.

RF Diode Selection Notes

Select this component for designs requiring high power handling in a small QFN footprint. Evaluate the junction-to-case thermal resistance of 26 °C/W for heat dissipation requirements. Consider the 30 μm I-region width and low parasitic inductance for large signal switching performance above 6 GHz.

RF Diode Part Context

This component belongs to the SMP1331 series of surface mount PIN diodes manufactured by Skyworks Solutions Inc. It is specifically engineered as a series-connected diode optimized for high-volume switch and attenuator applications operating from 10 MHz to beyond 6 GHz.

RF Diode Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing PCB footprints if considering alternative components.

RF Diode FAQ

What is the maximum continuous wave power handling?

The device can handle up to 45 W @ 85 °C Continuous Wave (CW) in a series-connected transmit/receive switch.

What is the typical series resistance value?

The typical series resistance is 0.50 Ω at a forward current of 100 mA and a frequency of 100 MHz.

What is the maximum total capacitance?

The maximum total capacitance is 0.35 pF at a reverse voltage of 30 V and a frequency of 1 MHz.