2SC4997

Features of the 2SC4997 are:(1)high transition frequency,typically fT=240MHz;(2)high hFE.

The absolute maximum ratings of the 2SC4997 can be summarized as:(1):the parameter is collector-base voltage,the symbol is VCBO,the limits is 15,the unit is V;(2):the parameter is collector-emitter voltage,the symbol is VCEO,the limits is 10,the unit is V;(3):the parameter is emitter-base voltage,the symbol is VEBO,the limits is 5,the unit is V;(4):the parameter is collector current,the symbol is IC,the limits is 0.1,the unit is A;(5):the parameter is collector power dissipation,the symbol is PC,the limits is 0.15,the unit is W;(6):the parameter is junction temperature,the symbol is Tj,the limits is 150,the unit is ;(7):the parameter is storage temperature,the symbol is Tstg,the limits is -55 to +150,the unit is .

The electrical characteristics of the 2SC4997 can be summarized as:(1):the parameter is collector-base breakdown voltage,the symbol is BVCBO,the Min is 10,the unit is V;(2):the parameter is collector-emitter breakdown voltage,the symbol is BVCEO,the Min is 15,the unit is V;(3):the parameter is emitter-base breakdown voltage,the symbol is BVEBO,the Min is 5,the unit is V;(4):the parameter is collector cutoff current,the symbol is ICBO,the Max is 0.1,the unit is A;(5):the parameter is emitter cutoff current,the symbol is IEBO,the Max is 0.1,the unit is A;(6):the parameter is collector-emitter saturation voltage,the symbol is VCE(sat),the Max is 0.15,the unit is V;(7):the parameter of 2SC4997 is DC current transfer ratio,the symbol is hFE,the Min is 560,the Typ is 1600,the Max is 2700;(8):the parameter is transition frequency,the symbol is fT,the Typ is 240,the unit is MHz;(9):the parameter is output capacitance,the symbol is Cob,the Typ is 1.4,the Max is 3,the unit is pF.