SMP1331-040LF

RF Diode Overview

The SMP1331-040LF is a single PIN diode from the Skyworks SMP1331 series, packaged in a miniature SOD-882 footprint. It features a typical capacitance of 0.18 pF at 30 V reverse bias and a typical series resistance of 1.7 Ω at 10 mA forward current. The device supports a maximum reverse voltage of 200 V and a power dissipation of 250 mW. Operating temperatures range from -65 °C to +150 °C. Designed for high-volume switch applications from 10 MHz to over 10 GHz, it offers low inductance (LS = 0.45 nH) suitable for battery-operated circuits requiring high isolation.

RF Diode Feature Summary

• Low capacitance design optimized for high-isolation series-connected switches
• Miniature SOD-882 package with low inductance for high-frequency performance
• RoHS-compliant Green product construction

RF Diode Applications

• High-performance wireless switches
• Low-distortion attenuators
• Battery-operated RF circuits

RF Diode Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance and lead-free status via official documentation. Check for recent discontinuation notices as availability may be limited. Ensure proper ESD handling protocols are followed during storage and assembly to prevent damage.

RF Diode Selection Notes

Select this component for designs requiring minimal parasitic capacitance and low series resistance in the SOD-882 form factor. Verify that the 200 V reverse voltage rating meets circuit requirements. Consider the 250 mW power dissipation limit when designing thermal management solutions for continuous operation.

RF Diode Part Context

The SMP1331-040LF belongs to the SMP1331 series of plastic-packaged PIN diodes. Other variants in this series include common anode and cathode configurations in SOT-23 and SC-79 packages. The specific suffix indicates the single configuration within the SOD-882 package type.

RF Diode Replacement Considerations

Direct replacements within the same series include SMP1331-003LF, SMP1331-004LF, and SMP1331-079LF, though these utilize different packages (SOT-23, SC-79). Cross-package substitution requires careful evaluation of footprint compatibility and inductance differences.