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2SC5661 / 2SC4725 / 2SC4082 / 2SC3837K
Transistors
High-Frequency Amplifier Transistor (18V, 50mA, 1.5GHz)
2SC5661 / 2SC4725 / 2SC4082 / 2SC3837K
!Features 1) High transition frequency. (Typ. fT = 1.5GHz) 2) Small rbb'Cc and high gain. (Typ. 6ps) 3) Small NF. !External dimensions (Units : mm)
2SC5661
0.2 1.2 0.8
(2) (3) (1)
0.2
1.2 0.32
0.4 0.4
0.5
0.22
0.8
0.15Max.
! Absolute maximum ratings (Ta=25C)
Parameter Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current 2SC5661, 2SC4725 Collector power dissipation 2SC4082, 2SC3837K Junction temperature Storage temperature Symbol VCBO VCEO VEBO IC PC Tj Tstg Limits 30 18 3 50 0.15 0.2 150 -55~+150 Unit V V V mA W C C
ROHM : VMT3
(1) Base (2) Emitter (3) Collector
(1) (2)
0.2 0.5 0.5
2SC4725
0.3
(3)
0.13 0to0.1
1.0
0.8 1.6
0.15
0.2
1.6
0.1Min.
(1)
2SC4082
Type Package hFE Marking Code Basic ordering unit (pieces)
Denotes hFE
0to0.1
ROHM : EMT3 EIAJ : SC-75A
(1) Emitter (2) Base (3) Collector
0.55 0.65 0.65
(3)
2SC5661 VMT3 NP AC T2L 8000
2SC4725 EMT3 NP AC TL 3000
2SC4082 UMT3 NP 1C T106 3000
2SC3837K SMT3 NP AC T146 3000
0.3
!Packaging specifications and hFE
1.25 2.1
(2)
1.3 2.0
0.7
0.1to0.4
0to0.1
ROHM : UMT3 EIAJ : SC-70
(1) Emitter (2) Base (3) Collector
0.15
0.2
Each lead has same dimensions
(1)
2SC3837K
0.4
(3)
1.6 2.8
0.95 0.95 1.9 2.9
(2)
0.7
0.9
0.3to0.6
0to0.1
ROHM : SMT3 EIAJ : SC-59
Each lead has same dimensions
!Electrical characteristics (Ta=25C)
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 transfer ratio Transition frequency Output capacitance Collector-base time constant Noise factor Symbol BVCBO BVCEO BVEBO ICBO IEBO VCE(sat) hFE fT Cob Min. 30 18 3 - - - 56 600 - - - Typ. - - - - - - - 1500 0.9 6 4.5 Max. - - - 0.5 0.5 0.5 180 - 1.5 13 - Unit V V V A A V - MHz pF ps dB IC = 10A IC = 1mA IE = 10A VCB = 10V VEB = 2V IC/IB = 20mA/4mA VCE/IC = 10V/10mA VCB = 10V , IC = 10mA , f = 200MHz VCB = 10V , IE = 0A , f = 1MHz VCB = 10V , IC = 10mA , f = 31.8MHz VCE = 12V , IC = 2mA , f = 200MHz , Rg = 50 Conditions
rbb'*Cc NF
0.8
(1) Emitter (2) Base (3) Collector
0.15
1.1
1/1
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

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