SMS3923-040LF

RF Diode Overview

The SMS3923-040LF is a surface-mount general-purpose Schottky diode from the Skyworks SMS392x series, rated for 20 V reverse voltage. It utilizes an SOD-882 (SC-88) plastic package with a marking code of 'X' and features a series inductance of 1.5 nH. The device operates within a temperature range of -65 °C to +150 °C and supports frequencies up to 6 GHz. Electrical specifications include a minimum breakdown voltage of 20 V at 10 μA, maximum reverse current of less than 500 nA at 15 V, and capacitance ranging from 0.83 pF to 1.30 pF at 0 V. Forward voltage ranges from 310 mV to 370 mV at 1 mA.

RF Diode Feature Summary

• Tight parameter distribution minimizes performance variability across devices
• Fully characterized including SPICE model parameters for simulation accuracy
• 100 percent DC tested to ensure quality control
• Packages rated MSL1 and compatible with 260 °C lead-free soldering

RF Diode Applications

• High volume commercial detectors
• Mixers
• Switches
• Digital pulse forming systems

RF Diode Procurement Notes

Verify component authenticity by checking the marking code 'X' on the SOD-882 package against official datasheet documentation. Confirm that the part number suffix matches the specific voltage rating and package type required for the design. Ensure compliance with moisture sensitivity level handling procedures after container seal opening to prevent solder assembly issues.

RF Diode Selection Notes

Select this component when a 20 V rated Schottky diode is required for RF applications operating up to 6 GHz. The SOD-882 package offers a compact footprint suitable for space-constrained designs. Consider the tight parameter distribution if circuit performance consistency is critical. Verify that the forward voltage and capacitance characteristics align with the specific detector or mixer requirements.

RF Diode Part Context

The SMS3923-040LF belongs to the SMS392x series of low-cost plastic packaged Schottky diodes manufactured by Skyworks Solutions. This series includes variants rated for 8 V, 20 V, and 70 V. The SMS3923 specifically denotes the 20 V rated member of the family, designed for general-purpose use in RF circuits where reliable switching and detection are necessary.

RF Diode Replacement Considerations

Direct substitutes within the same series include the SMS3922-040LF (8 V rated) and SMS3924-040LF (70 V rated), provided the voltage ratings meet the circuit requirements. Other packages in the series such as SC-79 or SOT-23 may be considered if pinout compatibility allows.