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QST8
Transistors
General purpose amplification (-12V, -1.5A)
QST8
Application Low frequency amplifier Driver External dimensions (Unit : mm)
2.8 1.6
0.4
(1)
(6) (4) 0.85 (5) 2.9
Features 1) A collector current is large. 2) Collector saturation voltage is low. VCE (sat) : max. -200mV At IC = -500mA / IB = -25mA
0.16
ROHM : TSMT6
Abbreviated symbol : T08
Absolute maximum ratings (Ta=25C)
Parameter Collector-base voltage Collector-emitter voltage Emitter-base voltage
Collector current Power dissipation Junction temperature Range of storage temperature
Equivalent circuit
(6) (5) (4)
Symbol VCBO VCEO VEBO IC ICP PC Tj Tstg
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
Tr1
Tr2
(1)
(2)
(3)
1 Single pulse, Pw=1ms 2 Each Terminal Mounted on a Recommended 3 Mounted on a 25mmx25mmx t 0.8mm ceramic substrate
Electrical characteristics (Ta=25C)
Parameter Collector-base breakdown voltage 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= -10A IC= -1mA IE= -10A VCB= -15V VEB= -6V IC= -500mA, IB= -25mA VCE= -2V, IC= -200mA VCE= -2V, IE=200mA, f=100MHz VCB= -10V, IE=0A, f=1MHz
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
Pulsed
(3)
(2)
Each lead has same dimensions
Rev.A
1/2
QST8
Transistors
Packaging specifications
Package Type QST8 Code Basic ordering unit (pieces) Taping TR 3000
Electrical characteristic curves
BASE SATURATION VOLTAGE : VBE (sat) (V) COLLECTOR SATURATION VOLTAGE : VCE (sat) (V)
VCE= -2V Pulsed
IC / IB=20/1 Pulsed 1
VBE (sat)
COLLECTOR SATURATION VOLTAGE : VCE(sat) (V)
1000
10
Ta= -40C Ta=25C Ta=100C
-1
Ta=25C Pulsed
IC / IB=50 IC / IB=20 IC / IB=10
DC CURRENT GAIN : hFE
-0.1
100
Ta=100C Ta=25C Ta= -40C
0.1
Ta=100C Ta=25C Ta= -40C
-0.01
0.01
VCE (sat)
10 -0.001
-0.01
-0.1
-1
-10
0.001 0.001
0.01
0.1
1
10
-0.001 -0.001
-0.01
-0.1
-1
-10
COLLECTOR CURRENT : IC (A)
COLLECTOR CURRENT : IC (A)
COLLECTOR CURRENT : IC (A)
Fig.1 DC current gain vs. collector current
-10
VCE=2V Pulsed
Ta=100C Ta=25C Ta= -40C
Fig.2 Collector-emitter saturation voltage base-emitter saturation voltage vs. collector current
1000
Ta=25C VCE= -2V Pulsed
Fig.3 Collector-emitter saturation voltage vs. collector current
1000
IC=20 IB1= -20 IB2 Ta=25C Pulsed
SWITCHING TIME : (ns)
-1
TRANSITION FREQUENCY : fT (MHz)
COLLECTOR CURRENT : IC (A)
100
tstg tf
-0.1
100
10
tdon
-0.01
tr
-0.001
0
-0.5
-1.0
-1.5
10 0.001
0.01
0.1
1
10
1 -0.001
-0.01
-0.1
-1
-10
BASE TO EMITTER CURRENT : VBE (V)
EMITTER CURRENT : IE (A)
COLLECTOR CURRENT : IC (A)
Fig.4 Grounded emitter propagation characteristics
EMITTER INPUT CAPACITANCE : Cib (pF) COLLECTOR OUTPUT CAPACITANCE : Cob (pF)
100
IE=0A f=1MHz Ta=25C
Fig.5 Gain bandwidth product vs. emitter current
Fig.6 Switching time
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. 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 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-Rev1.1

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