HFA3127R96

Overview

The HFA3127R96 is an ultra-high frequency transistor array fabricated using the Renesas complementary bipolar UHF-1 process. It consists of five dielectrically isolated NPN transistors on a common monolithic substrate, housed in a 16-VFQFN exposed pad package (3x3 mm). Key electrical parameters include a transition frequency (fT) of 8 GHz, a maximum collector-emitter voltage (VCEO) of 12 V, and a continuous collector current (Ic) of 65 mA. The device exhibits a typical noise figure of 3.5 dB at 1 GHz and a minimum DC current gain (hFE) of 40 at 10 mA and 2 V. Maximum power dissipation is rated at 150 mW, with a junction temperature capability up to 175°C.

Feature Summary

• Monolithic construction provides close electrical and thermal matching among the five internal transistors.
• Dielectric isolation ensures stability and performance consistency in high-frequency operations.
• Full terminal access allows for flexible circuit configuration and application design.

Applications

• High-frequency amplifier circuits
• Mixer applications
• Harsh environment systems requiring MIL-STD-883 compliance

Procurement Notes

Verify component status as obsolete or end-of-life before integration into new designs. Confirm RoHS compliance requirements, as specific variants may not meet current environmental standards. Validate package dimensions against PCB footprint specifications to ensure mechanical compatibility during assembly processes.

Selection Notes

Select this component when five matched NPN transistors are required for UHF applications. Ensure the design accommodates the 16-QFN package constraints. Verify that the 12 V breakdown voltage and 65 mA current limits align with system operational requirements. Consider thermal management strategies given the 150 mW power dissipation rating.

Part Context

The HFA3127 series belongs to a family of ultra-high frequency transistor arrays including the HFA3046, HFA3096, and HFA3128. While the HFA3127 contains only NPN transistors, other models in the series offer PNP or mixed configurations. All share the same UHF-1 fabrication process and general architectural benefits.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult manufacturer obsolescence notices for potential lifecycle alternatives.