2SD1944

The 2SD1944 is designed as one kind of high-current gain power transistor that has three points of features:(1)high DC current gain;(2)low saturation voltage, typically VCE= 0.5V at Ic/IB= 2 A/ 0.5 A;(3)complements the 2SB1639.

The absolute maximum ratings of the 2SD1944 can be summarized as:(1)collector-base voltage: 80 V;(2)collector-emitter voltage: 60 V;(3)emitter-base voltage: 6 V;(4)collector current: 3 A or 4.5 A;(4)junction temperature:150;(5)storage temperature:-55 to +150.

And the electrical characteristics of the 2SD1944 can be summarized as:(1)collector-base breakdown voltage: 80 V;(2)collector-emitter breakdown voltage: 60 V;(3)emitter cutoff current: 100 uA;(4)collector-emitter saturation voltage: 1.0 V;(5)DC current transfer ratio: 560 to 1800;(6)transition frequency: 50 MHz;(7)output capacitance: 60 pF. If you want to know more information such as the electrical characteristics about the 2SD1944, please download the datasheet in www.seekic.com or www.chinaicmart.com.