Darlington transistor?: yes. Quantity per case: 1. Semiconductor material: silicon. FT: 10 MHz. Minimum hFE gain: 750. Collector current: 4A. Ic(pulse): 6A. Number of terminals: 3. Temperature: +150°C. Pd (Power Dissipation, Max): 40W. RoHS: yes. Assembly/installation: PCB through-hole mounting. Housing (according to data sheet): TO-126. Type of transistor: NPN. Operating temperature: -...+150°C. Vcbo: 80V. Saturation voltage VCE(sat): 2.8V. Collector/emitter voltage Vceo: 80V. BE resistor: R1 typ=15k Ohms, R2 typ=100 Ohms. Spec info: complementary transistor (pair) BD680A. Housing: TO-126 (TO-225, SOT-32). BE diode: no. CE diode: yes