SMP1340-079LF

RF Diode Overview

The SMP1340-079LF is a single, low-inductance PIN diode from the Skyworks SMP1340 series, housed in an SC-79 package with a typical series inductance of 0.7 nH. Designed for high-volume RF switching applications between 10 MHz and over 10 GHz, it features a short carrier lifetime of 100 ns and a nominal I-region width of 5 μm. Key electrical specifications include a maximum reverse voltage of 50 V, a typical capacitance of 0.21 pF at 5 V, and a typical resistance of 0.85 Ω at 10 mA. The device supports lead-free soldering and operates within a temperature range of -65 °C to +150 °C.

RF Diode Feature Summary

• Engineered for fast switching speeds utilizing a short carrier lifetime and thin I-region width
• Optimized for high-frequency performance through low capacitance and low forward resistance
• Designed for surface-mount assembly in standard tape and reel formats

RF Diode Applications

• Fast speed wireless switch applications
• RF switching circuits operating from 10 MHz to more than 10 GHz

RF Diode Procurement Notes

Verify component authenticity by cross-referencing the manufacturer's Certificate of Conformance against the specific lot codes on the shipping container. Ensure that storage and handling procedures strictly adhere to Moisture Sensitivity Level 1 (MSL1) guidelines to prevent moisture absorption prior to solder reflow. Confirm compliance with RoHS directives before final integration into the production line.

RF Diode Selection Notes

Select this component when circuit requirements demand rapid switching transitions combined with minimal parasitic capacitance. The SC-79 package provides a compact footprint suitable for dense layouts, while the 0.7 nH low inductance design ensures signal integrity at frequencies exceeding 10 GHz. Evaluate thermal management capabilities to ensure power dissipation remains within the specified limits during continuous operation.

RF Diode Part Context

This part belongs to the SMP1340 series of plastic-packaged, surface-mountable PIN diodes manufactured by Skyworks Solutions. The series encompasses various configurations including common anode, common cathode, and single low inductance variants across multiple packages such as SOT-23, SOD-882, and SC-79. The SMP1340-079LF specifically denotes the single low inductance configuration in the SC-79 housing.

RF Diode Replacement Considerations

Direct replacements must match the SC-79 package dimensions and 0.7 nH inductance profile. Verify that alternative components maintain comparable carrier lifetimes and I-region widths to preserve switching speed characteristics. Ensure substitute parts support the required 50 V reverse voltage rating and operate reliably within the -65 °C to +150 °C temperature range.