2SB1731 Transistors Low frequency amplifier 2SB1731 zExternal dimensions (Unit : mm) (1) 0.2 zFeatures 1) A collector current is large. 2) VCE(sat) ≤−370mV at IC =−1A / IB =−50mA 1.7 2.0 (3) 0.65 0.65 1.3 0.3 (2) zApplication Low frequency amplifier Driver 0.2 ROHM : TUMT3 Limits Symbol VCBO −30 VCEO −30 VEBO −6 IC −1.5 Collector current ICP −3 400 PC Power dissipation Tj 150 Junction temperature Tstg Range of storage temperature −55 to +150 0.15Max. Abbreviated symbol : FL (1)Base (2)Emitter (3)Collector zPackaging specifications zAbsolute maximum ratings (Ta=25°C) Parameter Collector-base voltage Collector-emitter voltage Emitter-base voltage 0.85Max. 0~0.1 0.77 0.17 2.1 Unit V V V A A∗ mW °C °C Package Type Code Basic ordering unit (pieces) Taping TL 3000 2SB1731 ∗Single pulse, PW=1ms zElectrical characteristics (Ta=25°C) Parameter Collector-base breakdown voltage Collector-emitter breakdown voltage Emitter-base breakdown voltage Collector cutoff current Emitter cutoff current Collector-emitter saturation voltage DC current gain Transition frequency Corrector output capacitance Symbol BVCBO BVCEO BVEBO ICBO IEBO VCE(sat) hFE fT Cob Min. −30 −30 −6 − − − 270 − − Typ. − − − − − −200 − 280 13 Max. − − − −100 −100 −370 680 − − Unit V V V nA nA mV − MHz pF Conditions IC=−10µA IC=−1mA IE=−10µA VCB=−30V VEB=−6V IC=−1A, IB=−50mA VCE=−2V, IC=−100mA ∗ VCE=−2V, IE=100mA, f=100MHz ∗ VCB=−10V, IE=0A, f=1MHz ∗ Pulsed 1/2 2SB1731 Transistors VCE=−2V Pulsed Ta=25°C Ta=−40°C 100 10 0.001 0.01 0.1 1 10 COLLECTOR CURRENT : IC (A) Fig.1 DC current gain vs. collector current Ta=100°C Ta=25°C Ta=−40°C 0.01 0.001 0 VBE(sat) 0.1 Ta=100°C Ta=25°C Ta=−40°C VCE(sat) 0.01 0.001 IC/IB=20/1 Pulsed 0.01 0.1 1 0.5 1 10 COLLECTOR CURRENT : IC (A) 1000 VCE=−2V Pulsed 0.1 Ta=−40°C Ta=25°C Ta=100°C 10 Ta=25°C Pulsed 1 0.1 IC/IB=50/1 0.01 100 0.01 0.1 1 10 COLLECTOR CURRENT : IC (A) Fig.3 Collector-emitter saturation voltage vs. collector current 1000 Ta=25°C VCE=−5V IC/IB=20/1 tstg 100 tf tdon 10 tr 10 0.01 1.5 Ta=25°C VCE=−2V f=100MHz IC/IB=10/1 IC/IB=20/1 0.001 0.001 Fig.2 Collector-emitter saturation voltage base-emitter saturation voltage vs. collector current TRANSITION FREQUENCY : fT (MHz) COLLECTOR CURRENT : IC (A) 1 1 SWITCHING TIME : (ns) DC CURRENT GAIN : hFE Ta=100°C COLLECTOR SATURATION VOLTAGE : VCE(sat) (V) 1000 BASE SATURATION VOLTAGE : VBE (sat) (V) COLLECTOR SATURATION VOLTAGE : VCE (sat) (V) zElectrical characteristic curves 0.1 1 10 1 0.01 0.1 1 EMITTER CURRENT : IE (A) COLLECTOR CURRENT : IC (A) Fig.4 Grounded emitter propagation characteristics Fig.5 Gain bandwidth product vs. emitter current Fig.6 Switching time EMITTER INPUT CAPACITANCE : Cib (pF) COLLECTOR OUTPUT CAPACITANCE : Cob (pF) BASE TO EMITTER CURRENT : VBE (V) 1000 10 Ta=25°C IC=0A f=1MHz Cib 100 Cob 10 1 0.1 1 10 100 EMITTER TO BASE VOLTAGE : VEB(V) COLLECTOR TO BASE VOLTAGE : VCB(V) Fig.7 Collector output capacitance vs. collector-base voltage Emitter input capacitance vs. emitter-base voltage 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. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document use silicon as a basic material. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.0