PSA-5451+

RF Amplifiers Overview

The Mini-Circuits PSA-5451+ is an E-PHEMT based ultra-low noise MMIC amplifier operating from 50 MHz to 4 GHz. It features a gain of 9.6 dB, a noise figure of 1.5 dB, and a P1dB compression point of 16.7 dBm. The OIP3 is 29.8 dBm. Powered by 3 V at 30 mA, it uses an SOT-363-6 surface mount package. Operating temperature ranges from -40°C.

RF Amplifiers Feature Summary

• Ultra-low noise performance suitable for sensitive receiver applications
• High IP3 combined with low noise characteristics
• E-PHEMT technology for wideband operation

RF Amplifiers Applications

• Cellular systems
• GSM infrastructure
• WLAN receivers
• ISM band applications
• LTE and WCDMA front ends

RF Amplifiers Procurement Notes

Verify the specific datasheet version and RoHS compliance status directly with Mini-Circuits or authorized distributors before procurement. Ensure the SOT-363-6 footprint matches your PCB design. Confirm that the 3V supply voltage aligns with your system requirements. Check for any specific handling instructions regarding ESD sensitivity associated with MMIC components.

RF Amplifiers Selection Notes

Select this component when ultra-low noise figures are critical in the 50 MHz to 4 GHz range. It is ideal for applications requiring high linearity alongside low noise, such as direct conversion receivers. Consider the SOT-363-6 package size constraints. Evaluate if the 30 mA current consumption fits your power budget compared to other low-power alternatives.

RF Amplifiers Part Context

This part belongs to Mini-Circuits' PSA series of monolithic microwave integrated circuit amplifiers. These devices utilize E-PHEMT technology to achieve high performance in small surface-mount packages. The series targets RF and IF applications requiring reliable gain and noise performance across broad frequency bands.

RF Amplifiers Replacement Considerations

Publicly confirmed substitutes include the PSA-5455+ which offers similar specifications but operates up to 6 GHz. Verify pin compatibility and thermal characteristics when substituting. Cross-reference datasheets for exact parameter deviations.