TECHNICAL DATA Noise Figure (with collector-to-emitter volts = 10, collector ma = 0.3, generator resistance = 510 ohms, circuit bandwidth = 1 cycle, and signal frequency = I kilocycie).... 2... 6. ee cee eee ee . 8 maz db * Pulse duration = 300 psec, duty factor = 0.018. POWER TRANSISTOR Silicon n-p-n type used in a wide variety of intermediate-power switch- C ing and amplifier applications in in- 2N17 68 dustrial equipment requiring transis- @ tors having high voitage, current, and cp E dissipation values. It is used in power switching, de-to-de converter, inverter, chopper, and relay actuating circuits; in voltage- and current-regulator circuits; and in de and servo amplifier circuits, This type has an offset pedestal, stud-mount arrangement which provides positive heat-sink contact. Outline 19, Outlines Section. This type is electrically identical with type 2N1486 except for the following items: MAXIMUM RATINGS COLLECTOR-TO-BASE VOLTAGS (with emitter open). .... 2.0... cc eee eee oe 60 max volts COLLECTOR-TO-BMITTER VOLTAGE: With emitter-to-base volts LB cee cece cee eee eee ete ee eee 60 max volts With base open... 2... cece cee tenes en eees Reece eee eee . 40 maz volta TRANSISTOR DISSIPATION: At case temperatures up to 26C. ............ seen eee cence een 40 max watts At case temperatures above 26C... . ee cee cece nce e ete eaceaes See curve page 68 LEAD TEMPERATURA (for 10 seconds maximum)...............000000e oe 255 maz C CHARACTERISTICS Collector-to-Emitter Breakdown Voltage (with emitter-to-base volts = 1.5 and collector ma := 0.25)... 0... cece cee cece nae . 60 min volts Collector-to-Emitter Sustaining Voltage (with collector ma = 100 and base current = 0) Thermal Resistance: Junction-to-case.... Junction-to-ambient, . . 40 min volts . 4.375 max C/watt . 175 max = C/watt POWER TRANSISTOR Silicon n-p-n type used in a wide / variety of intermediate-power switch- \ ing and amplifier applications in in- 2NI17 69 dustrial equipment requiring transis- 2% tors having high voltage, current, and dissipation values. It is used in power- switching, de-to-de converter, inverter, chopper, and relay actuating circuits; in voltage- and current-regulator circuits; and in de and servo amplifier circuits. This type has an offset pedestal, stud-mount arrangement which provides posi- tive heat-sink contact. Outline 19, Outlines Section. This type is identical with type 2N1486 except for the following items: MAXIMUM RATINGS TRANSISTOR DISSIPATION: At case temperatures up to 26C. . 40 max watts At case temperatures above 25C. . See curve page 68 LEAD THMPERATURD (for 10 seconds ma: 255 max C CHARACTERISTICS Thermal Resistance: Junction-to-case.... 4.375 max C/watt Junction-to-ambient, , 175 maz =C/watt 243