N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Drain-Source On Resistance: 3.5 ohm; Maximum Drain Current (ID): .2 A; Peak Reflow Temperature (C): NOT SPECIFIED;
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 250 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
1N4148 by Texas Instruments is a rectifier diode with max reverse recovery time of 0.004 us and max forward voltage of 1V. Ideal for applications requiring low reverse current such as signal demodulation circuits. Operates at max temp of 200°C, making it suitable for high-temperature environments.
Diodes Inc. BSS138-7-F is a N-channel FET with 50V DS breakdown voltage, 0.2A max drain current, and 3.5 ohm RDS(on). Ideal for switching applications in small outline packages with matte tin finish, operating up to 150°C peak reflow temp.