SMP1340-040LF

RF Diode Overview

The SMP1340-040LF is a single, low-inductance PIN diode from the Skyworks SMP1340 series, housed in an SOD-882 package. It features a typical carrier lifetime of 100 ns and a nominal I-region width of 5 μm. Key electrical specifications include a maximum reverse voltage (VR) of 50 V, a maximum power dissipation (PD) of 250 mW, and a capacitance (CT) ranging from 0.21 pF to 0.30 pF at 5 V. The series resistance (RS) varies between 0.85 Ω and 1.7 Ω depending on forward current. Operating temperatures range from -65 °C to +150 °C.

RF Diode Feature Summary

• Designed for high-volume RF switching applications across frequencies from 10 MHz to over 10 GHz.
• Features short carrier lifetime and thin I-region width to achieve fast switching speeds.
• Rated for Moisture Sensitivity Level 1 (MSL1) with lead-free soldering compatibility up to 260 °C.

RF Diode Applications

• Fast speed wireless switch applications
• RF signal routing and switching circuits
• High-frequency attenuator networks

RF Diode Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via the official Certificate of Conformance. Ensure storage conditions adhere to moisture sensitivity guidelines to prevent damage during solder assembly processes.

RF Diode Selection Notes

Select this component when low parasitic inductance is critical for circuit performance. The SOD-882 package provides a compact footprint suitable for space-constrained designs. Evaluate thermal management requirements against the 250 mW power dissipation limit under expected operating conditions.

RF Diode Part Context

This device belongs to the SMP1340 series, which includes variants such as SMP1340-007LF, SMP1340-003LF, SMP1340-004LF, and SMP1340-079LF. These parts share similar electrical characteristics but differ in packaging configurations, including SOT-23, SC-79, and SOD-882, to accommodate diverse board layout needs.

RF Diode Replacement Considerations

SMP1340-079LF: Single configuration in SC-79 package with LS = 0.7 nH.

RF Diode FAQ

What is the typical carrier lifetime for the SMP1340 series?

The typical carrier lifetime is 100 ns, measured at a forward current of 10 mA.

Is the SMP1340-040LF compatible with lead-free soldering?

Yes, the device is rated for MSL1 and can be used for both lead and lead-free soldering up to 260 °C.

What is the maximum reverse voltage rating?

The absolute maximum reverse voltage (VR) rating is 50 V.