View ssta06 datasheet:

SSTA06 / MMSTA06 / MPSA06 Transistors NPN General Purpose Transistor SSTA06 / MMSTA06 / MPSA06 Features External dimensions (Units : mm) 1) BVCEO < 80V.( IC=1mA) SSTA06 2.9±0.2 0.95+0.2 -0.1 1.9±0.2 2) Complements the SSTA56 / MMSTA56 / MPSA56. 0.45±0.1 0.95 0.95 (1) (2) 0~0.1 0.2Min. (3) Package, marking and packaging specifications +0.1 0.15-0.06 0.4+0.1 (1) Emitter -0.05 Part No. SSTA06 MMSTA06 MPSA06 All terminals have same dimensions (2) Base Packaging type SST3 SMT3 TO-92 ROHM : SST3 (3) Collector Mark R1G R1G - Code T116 T146 T93 Basic ordering unit (pieces) 3000 3000 3000 2.9±0.2 MMSTA06 1.1+0.2 -0.1 1.9±0.2 0.8±0.1 0.95 0.95 (1) (2) 0~0.1 Absolute maximum ratings (Ta=25°C) Parameter Symbol Limits Unit (3) Collector-base voltage VCBO 80