AT41435

Up to 6 GHz Low Noise Silicon␣ Bipolar Transistor Technical Data AT-41435 Features Low Noise Figure: 1.7 dB Typical at 2.0␣ GHz 3.0 dB Typical at 4.0␣ GHz High Associated Gain: 14.0 dB Typical at 2.0␣ GHz 10.0 dB Typical at 4.0␣ GHz High Gain-Bandwidth Product: 8.0 GHz Typical fT Cost Effective Ceramic Microstrip Package finger interdigitated geometry yields an intermediate sized transistor with impedances that are easy to match for low noise and moderate power applications. This device is designed for use in low noise, wideband amplifier, mixer and oscillator applications in the VHF, UHF, and microwave frequencies. An optimum noise match near 50 Ω at 1 GHz, makes this device easy to use as a low noise amplifier. The AT-41435 bipolar transistor is fabricated using Hewlett-Packard’s 10 GHz fT Self-Aligned-Transistor (SAT) process. The die is nitride passivated for surface protection. Excellent device uniformity, performance and reliability are produced by the use of ionimplantation, self-alignment techniques, and gold metalization in the fabrication of this device. 35 micro-X Package Description Hewlett-Packard’s AT-41435 is a general purpose NPN bipolar transistor that offers excellent high frequency performance. The AT-41435 is housed in a cost effective surface mount 100 mil micro-X package. The 4 micron emitter-to-emitter pitch enables this transistor to be used in many different functions. The 14 emitter 5965-8925E 4-114 AT-41435 Absolute Maximum Ratings Sy...