2n2907acsmcecc.pdf datasheet:

2N2907ACSMSEMELABHIGH SPEED, MEDIUM POWER, PNPSWITCHING TRANSISTOR IN AHERMETICALLY SEALEDMECHANICAL DATACERAMIC SURFACE MOUNT PACKAGEDimensions in mm (inches)FOR HIGH RELIABILITY APPLICATIONSFEATURES0.51 0.10 SILICON PLANAR EPITAXIAL PNP (0.02 0.004) 0.31rad.(0.012)TRANSISTOR3 HERMETIC CERAMIC SURFACE MOUNTPACKAGE (SOT23 COMPATIBLE)21 CECC SCREENING OPTIONS1.91 0.10 SPACE QUALITY LEVELS OPTIONS(0.075 0.004)A0.31rad.(0.012)3.05 0.13 HIGH SPEED SATURATED SWITCHING(0.12 0.005)1.40(0.055)1.02 0.10max.A =(0.04 0.004)APPLICATIONS:Hermetically sealed surface mount versionSOT23 CERAMICof the popular 2N2907A for high reliability /(LCC1 PACKAGE)space applications requiring small sizeUnderside View and low weight devices.PAD 1 Base PAD 2 Emitter PAD 3 Colle