2SD1949 / 2SD1484K Transistors Medium Power Transistor (50V,0.5A) 2SD1949 / 2SD1484K Features 1) High current.(IC=0.5A) 2) Low saturation voltage, typically VCE(sat)=0.1V at IC / IB=150mA / 15mA. Absolute maximum rationgs (Ta=25 C) Symbol VCBO Limits Unit 50 V Collector-emitter voltage VCEO 50 V Emitter-base voltage VEBO 5 V IC 0.5 0.2 A W Parameter Collector-base voltage Collector current Collector power dissipation PC Junction temperature Tj 150 C Storage temperature Tstg −55 to +150 C Electrical characteristics (Ta=25 C) Symbol BVCBO Min. Typ. Max. Unit 50 Collector-emitter breakdown voltage BVCEO 50 − − − − V V Emitter-base breakdown voltage BVEBO 5 ICBO − − 0.5 IEBO − − − − Parameter Collector-base breakdown voltage Collector outoff current Emitter cutoff current hFE − 120 VCE(sat) − Transition frequency fT Output capacitance Cob DC current rransfer ratio Collector-emitter saturation voltage 0.5 390 V µA µA − 0.4 V − − 250 − MHz − 6.5 − pF Conditions IC=100µA IC=1mA IE=100µA VCB=30V VEB=4V VCE/IC=3V/10mA IC/IB=150mA/15mA VCE=5V , IE= −20mA , f=100MHz VCB=10V , IE=0A , f=1MHz Packaging specifications and hFE Type 2SD1949 2SD1484K Package hFE UMT3 SMT3 QR QR Marking Y Y Code T106 T146 Basic ordering unit (pleces) 3000 3000 Danotes hFE hFE values are classified as follows : Item Q R hFE 120 to 270 180 to 390 Rev.D 1/2 2SD1949 / 2SD1484K Transistors Electrical characteristic curves 100 200 1000 0.50 VCE=6V Ta=25 C 0.45 2 1 -25 C 5 25 C C 20 10 0.5 500 0.40 80 DC CURRENT GAIN hFE COLLECTOR CURRENT : IC (mA) 50 Ta=100 COLLECTOR CURRENT : IC (mA) VCE=6V 100 0.35 0.30 60 0.25 0.20 40 0.15 0.10 20 1V 100 50 0.05 0.2 VCE=3V 200 IB=0mA 0.1 0 0.2 0.4 0.6 0.8 1.0 2 3 4 0.1 0.2 0.5 1 2 5 5 10 20 50 100 200 500 COLLECTOR TO EMITTER VOLTAGE : VCE (V) COLLECTOR CURRENT IC (mA) Fig.1 Ground emitter propagation characteristics Fig.2 Ground emitter output characteristics Fig.3 DC current gain vs. Collector current ( ) Ta=25 C VCE=10V 25 C -25 C 100 50 COLLECTOR SATURATION VOLTAGE : VCE (sat) (V) Ta=75 C IC/IB=10 0.5 COLLECTOR SATURATION VOLTAGE : VCE (sat) (V) 500 200 1 BASE TO VOLTAGE : VBE (V) 1000 DC CURRENT GAIN hFE 0 0 1.2 0.2 100/1 IC/IB= 0.1 50/1 20/1 0.05 10/1 0.5 0.2 0.1 0.05 25 C Ta=75 C -25 C 20 1 2 5 10 20 0.02 50 100 200 500 1000 5 10 20 50 100 200 500 0.02 5 10 20 50 100 200 500 1000 COLLECTOR CURRENT IC (mA) COLLECTOR CURRENT IC (mA) Fig.4 DC current gain vs. Collector currnet ( ) Fig.5 Collector-emitter saturation voltage vs. Collector current Fig.6 Collector-emitter saturation voltage vs. collector current Ta=25 C f=1MHz IE=0A 50 Cib 20 Cob 10 Ta=25 C 5 VCE=6V 500 TRANSITION FREQUENCY : fT (MHZ) COLLECTOR OUTPUT CAPACITANCE : Cob (pF) EMITTER INPUT CAPACITANCE : Cib (pF) COLLECTOR CURRENT IC (mA) 200 100 0.1 0.2 0.5 1 2 5 10 20 -1 -2 -5 -10 -20 COLLECTOR TO BASE VOLTAGE : VCB (V) EMITTER TO BASE VOLTAGE : VEB (V) EMITTER CURRENT : IE (mA) Fig.7 Input-and-output capacity vs.voltage characteristic Fig.8 Transition frequency vs.emitter current -50 Rev.D 2/2 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. 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ROHM cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the NOTES specified in this catalog. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact your nearest sales office. ROHM Customer Support System www.rohm.com Copyright © 2008 ROHM CO.,LTD. THE AMERICAS / EUROPE / ASIA / JAPAN Contact us : webmaster@ rohm.co. jp 21 Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan TEL : +81-75-311-2121 FAX : +81-75-315-0172 Appendix1-Rev2.0