4245-52

Overview

The PE4245-52 is a single-pole double-throw (SPDT) RF switch from pSemi, operating from DC to 4 GHz with a 50 Ohm impedance. It features a maximum insertion loss of 0.85 dB and a minimum isolation of 27 dB. The device supports a maximum CW input power of 30 dBm and achieves a 1 dB compression point of 27 dBm. It utilizes UltraCMOS technology on a sapphire substrate, housed in a 3x3 mm DFN-6 package, and operates within a temperature range of -40 °C to +85 °C.

Feature Summary

• Integrates on-board CMOS control logic with low voltage compatible inputs
• Utilizes patented UltraCMOS silicon-on-insulator technology for high performance
• Provides high linearity suitable for demanding RF applications

Applications

• Wireless infrastructure systems
• Test and measurement equipment
• Mobile communication devices

Procurement Notes

Verify the specific ordering code against official documentation, as pSemi has issued discontinuation notices for certain PE4245 variants including PE4245-52. Confirm current availability status and potential end-of-life implications before finalizing procurement plans. Ensure compatibility with existing design requirements given the product lifecycle status.

Selection Notes

Select this component for designs requiring SPDT switching up to 4 GHz with moderate insertion loss. Consider the discontinued status when planning long-term production. Evaluate alternative UltraCMOS switches if supply continuity is critical. Verify package dimensions and thermal characteristics for PCB layout integration.

Part Context

The PE4245 series represents pSemi's UltraCMOS family of RF switches, leveraging silicon-on-insulator technology on sapphire substrates. This approach offers superior isolation and linearity compared to standard CMOS processes. The PE4245-52 specifically addresses general-purpose SPDT needs within the wireless and microwave spectrum.

Replacement Considerations

pSemi has announced discontinuation for the PE4245 series including the PE4245-52 variant. Designers should identify equivalent SPDT switches from the manufacturer's current portfolio or other suppliers offering similar frequency ranges and package footprints.