HFA3046B

Overview

The HFA3046B is an ultra-high frequency NPN transistor array fabricated using the Renesas complementary bipolar UHF-1 process. It integrates five dielectrically isolated transistors on a common monolithic substrate within a 14-pin SOICN package. Key electrical parameters include a maximum collector-emitter voltage (VCEO) of 8 V, a collector-base voltage (VCBO) of 12 V, and a maximum DC collector current of 65 mA. The device exhibits a transition frequency (fT) of 8 GHz and a noise figure of 3.5 dB. It operates within a temperature range of -55°C to +125°C with a maximum power dissipation of 150 mW.

Feature Summary

• Monolithic construction provides close electrical and thermal matching among the five integrated transistors.
• Dielectric isolation ensures independent operation of individual transistor elements.
• Full terminal access allows for maximum application flexibility in circuit design.

Applications

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

Procurement Notes

Verify the specific suffix designation when ordering, as the HFA3046BZ variant includes annealing processes and lead-free plating. Confirm moisture sensitivity level (MSL 3) and storage conditions upon receipt. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity and traceability for military-grade specifications.

Selection Notes

Select this component for designs requiring matched NPN pairs or quintuplets at UHF frequencies. The 8 GHz fT supports operations well beyond standard RF ranges. Consider the 14-pin SOICN package constraints for PCB layout. Verify that the 8 V VCEO rating aligns with the system's peak voltage requirements to prevent breakdown.

Part Context

The HFA3046B belongs to the HFA3046/HFA3096/HFA3127/HFA3128 family of ultra-high frequency transistor arrays. While the HFA3046 series consists entirely of NPN transistors, other family members like the HFA3096 combine NPN and PNP types. This family shares the same UHF-1 fabrication process and monolithic architecture.

Replacement Considerations

Direct replacements within the same family include the HFA3046BZ. For mixed NPN/PNP requirements, consider the HFA3096. All-PNP configurations are available via the HFA3128. Verify pinout compatibility and thermal characteristics before substituting.