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EMX4 / UMX4N / IMX4
Transistors
High transition frequency (dual transistors)
EMX4 / UMX4N / IMX4
Features 1) Two 2SC3837K chips in a EMT or UMT or SMT package. 2) High transition frequency. (fT=1.5GHz) 3) Low output capacitance. (Cob=0.9pF)
External dimensions (Unit : mm)
EMX4
0.22
(4) (5) (6)
(3) (2)
1.2 1.6
(1)
0.13
Equivalent circuits
EMX4 / UMX4N
(3) (2) (1)
IMX4
(4) (5) (6)
ROHM : EMT6
Each lead has same dimensions
UMX4N
0.65 1.3 0.65
0.8 1.1 0.95 0.95 1.9 2.9
(4)
(3)
0.5
0.5 0.5 1.0 1.6
0.2
(6)
(4)
(5)
(6)
(3)
(2)
(1)
1.25 2.1
0.15
(1)
Absolute maximum ratings (Ta=25C)
Parameter Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Collector power dissipation
EMX4 / UMX4N
IMX4
0~0.1
0.1Min.
Symbol VCBO VCEO VEBO IC Pc Tj Tstg
Limits 30 20 3 50 150(TOTAL) 300(TOTAL) 150 -55 to +150
Unit V V V mA mW
ROHM : UMT6 EIAJ : SC-88
IMX4
(6)
Each lead has same dimensions
0.3
(5)
(4)
1 2
0.15
1.6 2.8
Junction temperature Storage temperature
1 120mW per element must not be exceeded. 2 200mW per element must not be exceeded.
C C
0.3Min.
0~0.1
ROHM : SMT6 EIAJ : SC-74
Each lead has same dimensions
Package, marking, and packaging specifications
Type Package Marking Code
Basic ordering unit (pieces)
EMX4 EMT6 X4 T2R 8000
UMX4N UMT6 X4 TR 3000
IMX4 SMT6 X4 T108 3000
Electrical characteristics (Ta=25C)
Parameter Collector-base breakdown voltage Collector-emitter breakdown voltage Emitter-base breakdown voltage Collector cutoff current Emitter cutoff current DC current transfer ratio Collector-emitter saturation voltage Transition frequency Output capacitance Collector-base time constant Noise factor
Transition frequency of the device.
Symbol BVCBO BVCEO BVEBO ICBO IEBO hFE VCE(sat) fT Cob rbb' Cc NF
Min. 30 20 3 - - 27 - 600 - - -
Typ. - - - - - - - 1500 0.95 6 4.5
Max. - - - 0.5 0.5 270 0.5 - 1.6 13 -
Unit V V V A A - V MHz pF ps dB IC=10A IC=1mA IE=10A VCB=15V VEB=2V
Conditions
VCE/IC=10V/10mA IC/IB=20mA/4mA VCE/IE=10V/ -10mA, f=200MHz VCB/f=10V/1MHz, IE=0A VCB=10V, IC=10mA , f=31.8MHz VCE=12V, IC=2mA , f=200MHz , Rg=50
(3)
(2)
(1)
0.7
Rev.A
0.9
2.0
(5)
(2)
1/3
EMX4 / UMX4N / IMX4
Transistors
Electrical characteristic curves
COLLECTOR SATURATION VOLTAGE :VCE(sat) (mV)
500
DC CURRENT TRANSFER RATIO :hFE
OUTPUT CAPACITANCE :CoB (pF) FEEDBACK CAPACITANCE :Cre (pF)
Ta=25C VCE=10V
500
5.0
Ta=25C IC/IB=5
Ta=25C f=1MHz IE=0A
200
100
200
2.0
Cob
100
50
1.0
0.5
50
Cre
20
10
20
0.2
0.1 0.2
0.5
1
2
5
10 20
50
10
0.1
0.1 0.2
0.5
1
2
5
10 20
50
0.1 0.2
0.5
1
2
5
10 20
50
COLLECTOR CURRENT : IC (mA)
COLLECTOR CURRENT : IC (mA)
COLLECTOR TO BASE VOLTAGE : VCB (V)
Fig.1 DC current gain vs. collector current
Fig.2 Collector-emitter saturation voltage vs. collector current
Fig.3 Capacitance vs. reverse bias voltage
COLLECTOR TO BASE TIME CONSTANT : Cc rbb' (ps)
5000
TRANSITION FREQUENCY : fT (MHz)
Ta=25C VCE=10V
50
25
Ta=25C VCE=10V IC=10mA
2000
20
INSERTION GAIN : IS21el (dB)
20
1000
500
10
5
2
15
10
200
2
100
-0.1 -0.2
-0.5 -1 -2
-5
-10 -20
-50
1
Ta=25C VCE=10V f=31.8MHz
5
0.1 0.2
0.5
1
2
5
10 20
50
0
0.1
0.2
0.5
1
2
5
10
EMITTER CURRENT : IE (mA)
COLLECTOR CURRENT : IC (mA)
FREQUENCY : f (GHz)
Fig.4 Gain bandwidth product vs. emitter current
Fig.5 Collector to base time constance vs. collector current
Fig.6 Insertion gain vs. frequency
25
30
INSERTION GAIN : IS21el (dB)
Ta=25C VCE=12V f=200MHz
INSERTION GAIN : IS21el (dB)
20 15 10 5
15
10
NOISE FIGURE : NF(dB)
20
25
Ta=25C IC=2mA f=200MHz
20
Ta=25C VCE=12V f=200MHz
2
2
10
5
0
0.5
1
2
5
10
20
50
0
0
2
4
6
8
10
12
0
0.1 0.2
0.5
1
2
5
10 20
50
COLLECTOR CURRENT : Ic (mA)
COLLECTOR TO EMITTER VOLTAGE : VCE (V)
COLLECTOR CURRENT : IC (mA)
Fig.7 Insertion gain vs. collector current
Fig.8 Insertion gain vs. collector voltage
Fig.9 Noise factor vs. collector current
Rev.A
2/3
EMX4 / UMX4N / IMX4
Transistors
30 25
NOISE FIGURE : NF(dB)
Ta=25C IC=2mA f=200MHz
20
15
10 5
0
0
2
4
6
8
10
12
COLLECTOR TO EMITTER VOLTAGE : VCE (V)
Fig.10 Noise factor vs. collector voltage
Rev.A
3/3
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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