FEATURES
Power dissipation
    PCM:            0.625 W (Tamb=25℃)
Collector current
    ICM:               -0.1 A
Collector-base voltage
    VCBO:       BC556  -80   V
                   BC557  -50   V
                   BC558  -30   V
Operating and storage junction temperature range
    TJ, Tstg: -55℃to +150℃