SKY12248-492LF

RF Switches Overview

The SKY12248-492LF is a single-pole, double-throw (SPDT) fail-safe RF switch designed for TDD LTE and 5G applications. It operates within a frequency range of 0.4 GHz to 3 GHz. The device supports dual supply voltages: 5 V or 16 V to 48 V. Key electrical parameters include an insertion loss of 1.3 dB maximum and isolation of 20 dB minimum. It features an input IP3 of 72 dBm and handles up to 120 W power dissipation. The component is housed in a 16-QFN (4x4 mm) package with an exposed pad.

RF Switches Feature Summary

• Fail-safe operation ensures default state maintenance during control signal loss
• Dual voltage compatibility supporting both 5 V and high-voltage 16-48 V supplies
• Tunable configuration allows optimization for specific RF bands
• High power handling capability suitable for demanding transmitter paths

RF Switches Applications

• TDD-LTE base station transmitters
• 5G NR antenna switching modules
• WiMax infrastructure equipment
• High-power RF signal routing systems

RF Switches Procurement Notes

Verify the exact suffix and marking code against the manufacturer's latest datasheet to ensure pinout and electrical specifications match design requirements. Confirm RoHS compliance status and lead time availability through authorized distributors, as this component may be subject to end-of-life notifications or supply chain constraints requiring immediate validation of current stock levels.

RF Switches Selection Notes

Select this component when a fail-safe SPDT switch is required for TDD systems operating between 0.4 GHz and 3 GHz. It is appropriate for designs needing support for 16-48 V control supplies alongside standard 5 V logic. Consider the 16-QFN package size and thermal performance for high-power dissipation scenarios where compact footprint and robust isolation are critical for system reliability.

RF Switches Part Context

This part belongs to Skyworks' portfolio of high-power RF switches engineered for wireless infrastructure. It complements other devices in the SKY122xx series by providing fail-safe functionality and wide voltage tolerance. The component addresses the need for reliable signal path management in modern cellular base stations and advanced radio access networks.

RF Switches Replacement Considerations

SKY12213-478LF is listed as a discontinued alternative; however, it is an SPST switch with different pinout and specifications. No direct pin-to-pin replacement is confirmed in public documentation. Verify functional equivalence carefully if substituting.