BF257 Datasheet (Seme LAB) - Bipolar NPN Device

BF257, Bipolar NPN Device

BF257 Dimensions in mm (inches).

8.51 (0.34) 9.40 (0.37) 7.75 (0.305) 8.51 (0.335) 6.10 (0.240) 6.60 (0.260) 12.70 (0.500) min.

(00.0.8395)max.

0.41 (0.016) 0.53 (0.021) dia.

5.08 (0.200) typ.

0.74 (0.029) 1.14 (0.045) 0.71 (0.028) 0.86 (0.034) 2 13 45° 2.54 (0.100) 1 Emitter TO39 (TO205AD) PINOUTS 2 Base 3 Collector Bipolar NPN Device in a Hermetically sealed TO39 Metal Package.

Bipolar NPN Device.

VCEO = 160V IC = 0.1A All Semelab hermetically sealed