MMBTA44 High-Voltage NPN Transistor Surface Mount COLLECTOR 3 SOT-23 3 1 BASE 1 2 2 EMITTER Maximum Ratings Rating C ollector-E mitter V oltage C ollector-B as e V oltage E mitter-B as e V Oltage C ollector C urrent-C ontinuous Symbol VCEO VCBO VEBO IC Value 400 450 6.0 300 Unit Vdc Vdc Vdc mAdc Thermal Characteristics Characteristics Total Device Dissipation FR-5 Board (1) TA=25 C Derate above 25 C Thermal Resistance, Junction to Ambient Total Device Dissipation Alumina Substrate, (2) TA=25 C Derate above 25 C Thermal Resistance, Junction to Ambient Junction and Storage, Temperature Symbol Max Unit 225 mW 1.8 mW/ C C/W PD R JA 556 350 PD mW 2.8 R JA 357 mW/ C C/W TJ,Tstg -55 to +150 C Device Marking MMBTA44=3D Electrical Characteristics (T A =25 C Unles s Otherwis e noted) Characteristics Symbol Min Max Unit Collector-Emitter Breakdown Voltage(3) (IC=1.0mAdc.IB=0) V(BR)CEO 400 - Vdc Collector-Base Breakdown Voltage (IC=100 uAdc, IE=0) V(BR)CBO 450 - Vdc Emitter-Base Breakdown Voltage (IE=10 uAdc, IC=0) V(BR)EBO 6.0 - Vdc Off Characteristics Base Cutoff Current (VCB=400 Vdc, IE=0) ICBO - 100 nAdc Emitter Cutoff Current VEB=4V, IC=0 IEBO - 100 nAdc 1.FR-5=1.0 x 0.75 x 0.062 in. 2.Alumina=0.4 x 0.3 x 0.024 in. 99.5% alumina. 3.Pulse Test:Pulse Width 300 µS, Duty Cycle 2.0%. WEITRON http://www.weitron.com.tw MMBTA44 Electrical Characteristics (TA=25 Characteristics WE IT R ON C unless otherwise noted) (Countinued) Symbol Min Max 40 50 45 20 2.00 . Unit On Characteristics DC Current Gain (IC= 1.0 mAdc, VCE=10Vdc) (IC= 10 mAdc, VCE= 10Vdc) (IC= 50 mAdc, VCE= 10Vdc) (IC= 100 mAdc, VCE= 10Vdc) HFE(1) HFE(2) HFE(3) HFE(4) Collector-Emitter Saturation Voltage(3) (IC= 1.0 mAdc, IB= 0.1 mAdc) (IC= 10 mAdc, IB= 1.0 mAdc) - 0.40 VCE(sat) 0.50 (IC= 50 mAdc, IB= 5.0 mAdc) Base-Emitter Saturation Voltage (3) (IC= 10 mAdc, IB= 1.0 mAdc) Current-Gain-Bandwidth Product (IC= 10 mAdc, VCE= 10 Vdc, f=10MHz) WEITRON http://www.weitron.com.tw - Vdc 0.75 VBE(sat) - fT 20 0.75 - Vdc MHz MMBTA44 SOT-23 Package Outline Dimension SOT-23 A B T OP V IE W C D E G H K J WEITRON http://www.weitron.com.tw L M Dim A B C D E G H J K L M Min 0.35 1.19 2.10 0.85 0.46 1.70 2.70 0.01 0.89 0.30 0.076 Max 0.51 1.40 3.00 1.05 1.00 2.10 3.10 0.13 1.10 0.61 0.25