2SD1975A Datasheet



Features, Applications

Satisfactory foward current transfer ratio hFE collector current IC characteristics Wide area of safe operation (ASO) High transition frequency fT Optimum for the output stage of a HiFi audio amplifier (TC=25�C)

Parameter Collector to base voltage Collector 2SD1975A 2SD1975 Symbol VCBO VCEO VEBO ICP PC Tj Tstg

emitter voltage 2SD1975A Emitter to base voltage Peak collector current Collector current Collector power TC=25�C dissipation Ta=25�C Junction temperature Storage temperature

Parameter Collector cutoff current Emitter cutoff current 2SD1975 2SD1975A

Symbol ICBO IEBO hFE2* hFE3 VBE VCE(sat) fT Cob Conditions VCB = 0 VCB = 0 VEB = 0 VCE = 20mA VCE = 1A VCE = 8A VCE = 1A VCE = 1MHz VCB 1MHz V MHz pF 200 min typ max 50 Unit �A

Base to emitter voltage Collector to emitter saturation voltage Transition frequency Collector output capacitance

TC=25�C (1) TC=Ta (2) With 2mm Al heat sink (3) Without heat sink (PC=3.5W) IB=1000mA

10000 Note: Rth was measured at Ta=25�C and under natural convection. 0.3A (3W) and without heat sink 1.0A (10W) and with 2mm Al heat sink



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