SMP1302-074LF

RF Diode Overview

The SMP1302-074LF is a plastic packaged, surface mountable silicon PIN diode from the Skyworks SMP1302 series. It features a low capacitance of 0.3 pF at 30 V reverse bias and 1 MHz frequency. The device operates within a temperature range of -65 °C to +150 °C and supports frequencies from 10 MHz to beyond 10 GHz. Key electrical parameters include a maximum reverse voltage of 200 V, power dissipation of 250 mW, and a forward voltage of 0.8 V at 10 mA. Series resistance varies with current: 15 Ω at 1 mA, 3 Ω at 10 mA, and 1.5 Ω at 100 mA, all measured at 100 MHz.

RF Diode Feature Summary

• Designed for high-volume switch and attenuator applications in TV distribution and cellular base stations
• Low-distortion design suitable for TEE attenuators with low drive current requirements
• Nominal 50 μm I region width optimized for large signal switching operations

RF Diode Applications

• TV distribution systems
• Cellular base station components
• High volume RF switches and attenuators

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 Product Change Notifications (PCN) or End-of-Life (EOL) notices prior to procurement. Ensure storage conditions adhere to moisture sensitivity level guidelines to prevent soldering defects during assembly.

RF Diode Selection Notes

Select this component for designs requiring low capacitance and specific series resistance values at defined forward currents. Verify that the SC-70 package footprint aligns with the PCB layout constraints. Ensure the operating frequency range falls between 10 MHz and 10 GHz. Confirm thermal management capabilities support the 250 mW power dissipation rating under expected load conditions.

RF Diode Part Context

The SMP1302-074LF belongs to the SMP1302 series of plastic packaged PIN diodes manufactured by Skyworks Solutions. This series includes various configurations such as single, dual, and quad diodes in packages like SOT-23, SOD-323, and SC-70. The part is specifically identified as a single common cathode diode in an SC-70 package, marked with 'RF3'.

RF Diode Replacement Considerations

Consult the SMP1302 series datasheet for alternative part numbers within the same family. Other variants may offer different package types or internal configurations while maintaining similar electrical characteristics. Verify pinout compatibility and physical dimensions before substituting.