NXP Semiconductors Single Bipolar Transistors BC618,112

NPN Darlington transistor for general purpose low-frequency applications and relay driving, housed in a TO-92 (SOT54) plastic through-hole package with dimensions of 4.8 mm max length and 2.54 mm lead pitch. It has a maximum collector-emitter voltage of 55 V, a continuous collector current of 500 mA, a peak collector current of 800 mA, and a total power dissipation of 625 mW at 25 °C. The device features a minimum DC current gain of 2,000 at I_C = 1 mA and up to 10,000 at I_C = 200 mA, with a transition frequency of 155 MHz and a collector-emitter saturation voltage of 1.1 V max at I_C = 200 mA and I_B = 0.2 mA. It meets IEC 60134 absolute maximum rating standards and has a junction temperature rating of 150 °C.