4309-52

Attenuators Overview

The pSemi 4309-52 is a fixed RF attenuator from the UltraCMOS series, designed for high-performance wireless applications. It provides a precise attenuation value of 31.5 dB with a nominal impedance of 50 Ohms. The device operates effectively within a frequency range of 0 Hz to 4 GHz. It is housed in a compact 24-VFQFN package featuring an exposed pad, facilitating efficient thermal management and integration into space-constrained circuit designs.

Attenuators Feature Summary

• UltraCMOS technology enables robust RF signal attenuation
• Fixed attenuation configuration ensures consistent performance
• Compact surface-mount packaging supports dense board layouts

Attenuators Applications

• Wireless communication systems
• RF front-end modules
• Test and measurement equipment

Attenuators Procurement Notes

Verify component authenticity through authorized distributors due to discontinued manufacturing status. Confirm package integrity upon receipt, as the 24-VFQFN exposed pad requires careful handling during assembly. Ensure compatibility with existing PCB footprints and thermal design requirements before finalizing procurement decisions.

Attenuators Selection Notes

Select this component when a fixed 31.5 dB attenuation is required at 50 Ohms up to 4 GHz. The UltraCMOS process offers reliability advantages over traditional technologies. Consider the 24-VFQFN package size constraints and thermal dissipation needs relative to the application environment.

Attenuators Part Context

This part belongs to the pSemi UltraCMOS family, known for integrating RF functions on silicon. The 4309-52 specifically addresses fixed attenuation needs in microwave circuits. Its discontinuation status necessitates careful lifecycle planning for new designs requiring this specific parameter set.

Attenuators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should evaluate current market alternatives or redesign using available components if supply continuity is critical.