SMA540B Datasheet (STMicroelectronics) - Active Biased RF Transistor

SMA540B, Active Biased RF Transistor

The SMA540B is a NPN Transistor integrating a current mirror as biasing.

In this way the IC (collector current) can be controlled setting the current at Bias pin according to IC = 10 * IBIAS.

The IBIAS current is easy adjustable using an external resistor.

SMA540B is housed in ultra miniature SO

SMA540B Active Biased RF Transistor PRELIMINARY DATA HIGH GAIN LOW NOISE AMPLIFIERS Gms = 19 dB at 1.8 GHz CURRENT EASY ADJUSTABLE BY AN EXTERNAL RESISTOR OPEN COLLECTOR OUTPUT TYPICAL SUPPLY VOLTAGE: 1.4-3.3 V TRANSITION FREQUENCY 42 GHz ULTRA MINIATURE SOT323-4L PACKAGE (LEAD FREE) APPLICATIONS WIDEBAND APPLICATIONS CELLULAR AND CORDLESS TELEPHONES HIGH FREQUENCY OSCILLATORS Bias Bias, 4 C, 3 SOT323-4L