QST8 Transistors General purpose amplification (−12V, −1.5A) QST8 zExternal dimensions (Unit : mm) zApplication Low frequency amplifier Driver 2.8 Collector current Power dissipation Junction temperature Range of storage temperature Symbol VCBO VCEO VEBO IC ICP PC Tj Tstg (6) 2.9 (5) (4) 0.85 (1) 0.4 Each lead has same dimensions ROHM : TSMT6 Abbreviated symbol : T08 zEquivalent circuit zAbsolute maximum ratings (Ta=25°C) Parameter Collector-base voltage Collector-emitter voltage Emitter-base voltage (2) 0.16 zFeatures 1) A collector current is large. 2) Collector saturation voltage is low. VCE (sat) : max. −200mV At IC = −500mA / IB = −25mA (3) 1.6 Limits Unit −15 V −12 V −6 V −1.5 A ∗1 −3 A 500 mW/TOTAL ∗2 1.25 W/TOTAL ∗3 0.9 W/ELEMENT ∗3 150 °C −55 to +150 °C (6) (5) (4) Tr2 Tr1 (1) (2) (3) ∗1 Single pulse, Pw=1ms ∗2 Each Terminal Mounted on a Recommended ∗3 Mounted on a 25mm×25mm× t 0.8mm ceramic substrate 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. −15 −12 −6 − − − 270 − − Typ. − − − − − −85 − 400 12 Max. − − − −100 −100 −200 680 − − Unit V V V nA nA mV − MHz pF Conditions IC= −10µA IC= −1mA IE= −10µA VCB= −15V VEB= −6V IC= −500mA, IB= −25mA VCE= −2V, IC= −200mA ∗ VCE= −2V, IE=200mA, f=100MHz VCB= −10V, IE=0A, f=1MHz ∗ ∗Pulsed Rev.A 1/2 QST8 Transistors zPackaging specifications Package Type Taping TR Code 3000 Basic ordering unit (pieces) QST8 Ta=100°C 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 −0.1 −0.01 −0.001 −0.5 0 −1.0 −1.5 BASE TO EMITTER CURRENT : VBE (V) Fig.4 Grounded emitter propagation characteristics EMITTER INPUT CAPACITANCE : Cib (pF) COLLECTOR OUTPUT CAPACITANCE : Cob (pF) IC / IB=20/1 Pulsed Ta= −40°C Ta=25°C Ta=100°C VBE (sat) Ta=100°C Ta=25°C Ta= −40°C 0.1 0.01 VCE (sat) 0.001 0.001 0.01 0.1 100 1 10 COLLECTOR CURRENT : IC (A) Fig.2 Collector-emitter saturation voltage base-emitter saturation voltage vs. collector current 1000 VCE=2V Pulsed −1 1 TRANSITION FREQUENCY : fT (MHz) COLLECTOR CURRENT : IC (A) −10 10 COLLECTOR SATURATION VOLTAGE : VCE(sat) (V) VCE= −2V Pulsed −1 100 0.01 0.1 1 IC / IB=50 IC / IB=20 IC / IB=10 −0.01 −0.001 −0.001 −0.01 −0.1 10 −1 −10 COLLECTOR CURRENT : IC (A) Fig.3 Collector-emitter saturation voltage vs. collector current 1000 Ta=25°C VCE= −2V Pulsed 10 0.001 Ta=25°C Pulsed −0.1 SWITCHING TIME : (ns) DC CURRENT GAIN : hFE 1000 BASE SATURATION VOLTAGE : VBE (sat) (V) COLLECTOR SATURATION VOLTAGE : VCE (sat) (V) zElectrical characteristic curves IC=20 IB1= −20 IB2 Ta=25°C Pulsed 100 tstg tf 10 tdon tr 1 −0.001 −0.01 −0.1 −1 EMITTER CURRENT : IE (A) COLLECTOR CURRENT : IC (A) Fig.5 Gain bandwidth product vs. emitter current Fig.6 Switching time −10 IE=0A f=1MHz Ta=25°C Cib 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 Rev.A 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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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-Rev1.1