2n2914 2n2916 2n2918.pdf datasheet:

2N29142N2916SEME2N2918LABMECHANICAL DATADimensions in mm (inches)8.51 (0.335)9.40 (0.370)DUAL NPN7.75 (0.305)8.51 (0.335)PLANAR TRANSISTORS IN TO77 PACKAGE1.02(0.040)Max.0.41 (0.016)0.53 (0.021)5.08(0.200)2.54(0.100)42.545(0.100)0.74 (0.029)3 61.14 (0.045)2145 0.71 (0.028)0.86 (0.034)TO77 PACKAGEPIN 1 Collector 1 PIN 4 Emitter 2PIN 2 Base 1 PIN 5 Base 2PIN 3 Emitter 1 PIN 6 Collector 2ABSOLUTE MAXIMUM RATINGS(Tamb = 25C unless otherwise stated)EACH SIDE TOTAL DEVICEVCBO Collector Base Voltage 45VVCEO Collector Emitter Voltage 1 45VVEBO Emitter Base Voltage 6VIC Continuous Collector Current 30PD Total Device Dissipation TAMB = 25C 300mW 500mWDerate above 25C 1.72mW / C 2.86W / CPD Total Device Dissipation TC = 25C 750mW 1.5WDerate above 25