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| Power Transistors 2SD1257, 2SD1257A Silicon NPN epitaxial planar type For power switching Complementary to 2SB934 10.00.3 8.50.2 6.00.5 3.40.3 Unit: mm 1.00.1 s Features q q q q Low collector to emitter saturation voltage VCE(sat) Satisfactory linearity of foward current transfer ratio hFE Large collector current IC N type package enabling direct soldering of the radiating fin to the printed circuit board, etc. of small electronic equipment. (TC=25C) Ratings 130 150 80 100 7 15 7 40 1.3 150 -55 to +150 Unit V 1.50.1 1.5max. 1.1max. 10.5min. 2.0 0.80.1 0.5max. 2.540.3 5.080.5 1 2 3 s Absolute Maximum Ratings Parameter Collector to base voltage Collector to 2SD1257 2SD1257A 2SD1257 Symbol VCBO VCEO VEBO ICP IC PC Tj Tstg 1:Base 2:Collector 3:Emitter N Type Package Unit: mm 3.40.3 1.00.1 8.50.2 6.00.3 10.00.3 emitter voltage 2SD1257A Emitter to base voltage Peak collector current Collector current Collector power TC=25C dissipation Ta=25C Junction temperature Storage temperature V V A A W C C 1.5-0.4 2.0 3.0-0.2 4.40.5 0.80.1 2.540.3 R0.5 R0.5 1.1 max. 0 to 0.4 5.080.5 1 2 3 1:Base 2:Collector 3:Emitter N Type Package (DS) s Electrical Characteristics Parameter Collector cutoff current Emitter cutoff current Collector to emitter voltage 2SD1257 2SD1257A (TC=25C) Symbol ICBO IEBO VCEO hFE1 hFE2 * Conditions VCB = 100V, IE = 0 VEB = 5V, IC = 0 IC = 10mA, IB = 0 VCE = 2V, IC = 0.1A VCE = 2V, IC = 3A IC = 5A, IB = 0.25A IC = 5A, IB = 0.25A VCE = 10V, IC = 0.5A, f = 10MHz IC = 3A, IB1 = 0.3A, IB2 = - 0.3A, VCC = 50V min typ max 10 50 4.40.5 Unit A A V 80 100 45 60 260 0.5 1.5 30 0.5 1.5 0.1 Forward current transfer ratio Collector to emitter saturation voltage Base to emitter saturation voltage Transition frequency Turn-on time Storage time Fall time *h FE2 VCE(sat) VBE(sat) fT ton tstg tf V V MHz s s s Rank classification R 60 to 120 Q 90 to 180 P 130 to 260 Rank hFE2 14.70.5 +0.4 +0 1 Power Transistors PC -- Ta 50 10 (1) TC=Ta (2) With a 50 x 50 x 2mm Al heat sink (3) Without heat sink (PC=1.3W) TC=25C 2SD1257, 2SD1257A IC -- VCE Collector to emitter saturation voltage VCE(sat) (V) 10 VCE(sat) -- IC (1) IC/IB=10 (2) IC/IB=20 TC=25C Collector power dissipation PC (W) Collector current IC (A) 40 (1) 8 IB=55mA 6 50mA 45mA 40mA 35mA 30mA 20mA 15mA 2 10mA 5mA 0 3 30 1 (2) (1) 0.3 20 4 0.1 10 (2) (3) 0 0 20 40 60 80 100 120 140 160 0.03 0 2 4 6 8 10 12 0.01 0.01 0.03 0.1 0.3 1 3 Ambient temperature Ta (C) Collector to emitter voltage VCE (V) Collector current IC (A) VCE(sat) -- IC Collector to emitter saturation voltage VCE(sat) (V) 100 VBE(sat) -- IC 100 VBE(sat) -- IC Base to emitter saturation voltage VBE(sat) (V) IC/IB=20 30 10 3 1 0.3 0.1 0.03 0.01 0.01 0.03 TC=-25C 100C 25C Base to emitter saturation voltage VBE(sat) (V) IC/IB=20 30 10 3 1 TC=100C 0.3 0.1 -25C 0.03 0.01 0.01 0.03 25C 10 (1) IC/IB=10 (2) IC/IB=20 TC=25C 3 (1) (2) 1 0.3 0.1 0.03 0.1 0.3 1 3 10 0.01 0.1 0.3 1 3 10 30 0.1 0.3 1 3 10 Collector current IC (A) Collector current IC (A) Collector current IC (A) hFE -- IC 10000 VCE=2V 10000 3000 1000 300 100 30 10 3 1 0.01 0.03 fT -- IC 10000 Cob -- VCB Collector output capacitance Cob (pF) VCE=10V f=10MHz TC=25C IE=0 f=1MHz TC=25C Forward current transfer ratio hFE 1000 300 Transition frequency fT (MHz) 3000 3000 1000 300 100 30 10 3 1 0.1 TC=100C 25C 100 -25C 30 10 3 1 0.01 0.03 0.1 0.3 1 3 10 0.1 0.3 1 3 10 0.3 1 3 10 30 100 Collector current IC (A) Collector current IC (A) Collector to base voltage VCB (V) 2 Power Transistors ton, tstg, tf -- IC 100 30 Pulsed tw=1ms Duty cycle=1% IC/IB=10(IB1=-IB2) VCC=50V TC=25C 2SD1257, 2SD1257A Area of safe operation (ASO) 100 30 Non repetitive pulse TC=25C ICP t=0.5ms Switching time ton,tstg,tf (s) Collector current IC (A) 10 3 1 0.3 0.1 0.03 0.01 0 1 2 3 4 10 IC 3 1 1ms 0.3 0.1 0.03 0.01 10ms 300ms tstg ton tf 5 6 7 8 1 3 10 30 100 2SD1257A 2SD1257 300 1000 Collector current IC (A) Collector to emitter voltage VCE (V) Rth(t) -- t 103 (1) Without heat sink (2) With a 50 x 50 x 2mm Al heat sink (1) (2) 10 Thermal resistance Rth(t) (C/W) 102 1 10-1 10-2 10-4 10-3 10-2 10-1 1 10 102 103 104 Time t (s) 3 |
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