SMP1340-074LF

RF Diode Overview

The SMP1340-074LF is a plastic packaged, surface mountable PIN diode from the Skyworks SMP1340 series. It is designed for high volume RF switching applications operating from 10 MHz to over 10 GHz. The device features a short carrier lifetime of 100 ns and a nominal I-region width of 7 μm. Key electrical specifications include a maximum reverse voltage of 50 V, a typical capacitance of 0.3 pF at 5 V, and a resistance of 1.0 Ω at 10 mA. It operates within a temperature range of -65 °C to +150 °C with a power dissipation rating of 250 mW.

RF Diode Feature Summary

• Fast switching speed enabled by a 100 ns carrier lifetime
• Low total capacitance of 0.3 pF for high frequency performance
• Low series resistance of 1.0 Ω at 10 mA drive current
• Plastic packaged design suitable for automated assembly

RF Diode Applications

• Fast speed wireless switch applications
• RF switching circuits in communication systems
• High volume manufacturing environments requiring low parasitic components

RF Diode Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance and lead-free status as indicated by the LF suffix. Check for updated datasheets regarding potential product changes or obsolescence notices before finalizing procurement plans.

RF Diode Selection Notes

Select this component when fast switching speeds and low capacitance are critical for RF signal integrity. Ensure the circuit design accommodates the 50 V reverse voltage limit and 250 mW power dissipation. Verify that the SC-79 package dimensions align with the PCB layout requirements.

RF Diode Part Context

This part belongs to the SMP1340 series of fast switching PIN diodes manufactured by Skyworks Solutions. The series includes various packages such as SOT-23, SC-70, and SC-79. The SMP1340-074LF specifically utilizes the SC-79 package format, distinguishing it from other variants in the family like the SOT-23 packaged SMP1340-007LF.

RF Diode Replacement Considerations

Direct replacements within the same series include SMP1340-079LF (SC-79 package) and SMP1340-003LF (SOT-23 package). Cross-package substitution requires verifying footprint compatibility and ensuring equivalent electrical parameters such as capacitance and resistance.