2N4028 Dimensions in mm (inches). 5.84 (0.230) 5..
Seme LAB
2N4028 - Bipolar PNP Device
2N4028 Dimensions in mm (inches). 5.84 (0.230) 5.31 (0.209) 4.95 (0.195) 4.52 (0.178) Bipolar PNP Device in a Hermetically sealed TO18 Metal Package.
Motorola
2N4028 - GENERAL PURPOSE TRANSISTOR
MAXIMUM RATINGS Rating 2N4026/28 2N4027/29 Symbol 2N4030/32 2N4031/33 Unit Collector-Emitter Voltage) 1) VCEO 60 80 Vdc Collector-Base Voltage.