The HFA3046, HFA3096, HFA3127, and HFA3128 are Ultra High Frequency Transistor Arrays fabricated from Intersil Corporation’s complementary bipolar UHF-1 process. Each array consists of five dielectrically isolated transistors on a common monolithic substrate. The NPN transistors exhibit an fT of 8GHz while the PNP transistors provide an fT of 5.5GHz. Both types exhibit low noise (3.5dB), making them ideal for high-frequency amplifier and mixer applications. The HFA3046 and HFA3127 are all NPN arrays while the HFA3128 has all PNP transistors. The HFA3096 is an NPN-PNP combination. Access is provided to each of the terminals for the individual transistors for maximum application flexibility. Monolithic construction of these transistor arrays provides close electrical and thermal matching of the five transistors. Intersil provides an Application Note illustrating the use of these devices as RF amplifiers. For more information, visit our website at www.intersil.com.
The HFA3046, HFA3096, HFA3127 and HFA3128 are Ultra High Frequency Transistor Arrays fabricated with Intersil's complementary bipolar UHF‑1 process. Each array contains five dielectrically isolated transistors on a common monolithic substrate, providing close electrical and thermal matching. The NPN devices (HFA3046, HFA3127) reach a transition frequency of 8 GHz, while the PNP devices (HFA3128) reach 5.5 GHz, and the HFA3096 combines NPN and PNP transistors.
Key specifications include low noise (3.5 dB at 1 GHz), collector‑to‑collector leakage below 1 pA, and early voltages of 50 V (NPN) and 20 V (PNP). The arrays are offered in 14‑lead SOIC and 16‑lead QFN packages, are RoHS‑compliant, and are suited for VHF/UHF amplifiers, mixers, IF converters, and synchronous detectors.
| NPN transition frequency (ft) | 8 GHz |
|---|---|
| PNP transition frequency (f7) | 5.5 GHz |
| Noise Figure at 1 GHz | 3.5 dB |
| Collector‑to‑Collector Leakage | <1 pA |
The collector current at 100 % duty cycle is 18.5 mA at 150 °C (and lower values at lower temperatures).
Yes, the Pb‑free plus anneal versions are RoHS compliant.