SMS3930-021LF

RF Diode Overview

The SMS3930-021LF is a surface-mount Schottky quad mixer diode manufactured by Skyworks Solutions Inc. It features a medium barrier junction and is housed in an SOT-143 package. The device has a maximum reverse voltage of 2V, a steady-state forward current rating of 50 mA, and a power dissipation capacity of 75 mW. Electrical specifications include a capacitance of 0.3 to 0.5 pF at 0V and 1 MHz, a forward voltage range of 310 to 370 mV at 1 mA, and a maximum slope resistance of 8 ohms at 10 mA. The component operates within a temperature range of -65°C to +150°C.

RF Diode Feature Summary

• Monolithic chip technology ensures uniformity of electrical characteristics across all four junctions.
• Tight parameter distribution minimizes performance variability for consistent circuit operation.
• 100% DC tested to guarantee reliability and adherence to specified electrical limits.

RF Diode Applications

• High-volume commercial systems
• Modulators and frequency multipliers
• Double balanced mixers

RF Diode Procurement Notes

Verify the specific ordering suffix and packaging format against official distributor catalogs before procurement. Confirm that the lead-free designation aligns with project requirements. Check for any product change notices or end-of-life announcements from the manufacturer. Ensure storage conditions comply with moisture sensitivity level guidelines prior to soldering.

RF Diode Selection Notes

Select this component for applications requiring medium barrier junctions in bridge quad configurations. Verify that the 2V reverse voltage rating meets the peak inverse voltage requirements of the target circuit. Ensure the SOT-143 package footprint matches the printed circuit board layout constraints. Confirm compatibility with standard reflow soldering profiles up to 260 °C.

RF Diode Part Context

This part belongs to the Skyworks Schottky quad mixer diode series, which includes ring, crossover, bridge, and octoquad configurations. The SMS3930-021LF specifically utilizes a bridge quad topology designed for modulator and frequency multiplier applications. It complements other Skyworks Schottky singles and pairs available in various small outline packages.

RF Diode Replacement Considerations

The SMS3927-023LF is a documented alternative within the same series offering identical medium barrier characteristics and SOT-143 packaging. Both parts share similar electrical parameters and application suitability for double balanced mixers and modulators.