2SK2974
MITSUBISHI RF POWER MOS FET
Nov. 97
OUTLINE DRAWING
Dimensions in mm
1 : DRAIN
2 : SOURCE
3 : GATE
MARKING
2
3
3.50
1
t=1.2MAX
(BOTTOM)
(TOP)
4.9
INDEX MARK
2.0
DESCRIPTION
2SK2974 is a MOS FET type transistor specifically designed for
VHF/UHF power amplifiers applications.
FEATURES
High power gain:Gpe
8.4dB
@V
DD
=7.2V,f=450MHz,Pin=30dBm
High efficiency:55% typ.
Source case type seramic package
(connected internally to source)
APPLICATION
For drive stage and output stage of power amplifiers in VHF/UHF
band portable radio sets.
Typ
Max
Min
Limits
Parameter
Test conditions
Symbol
Parameter
Ratings
175
V
DSS
V
GSS
P
ch
T
j
T
stg
Unit
Drain to source voltage
Gate to source voltage
Channel dissipation
Junction temperature
Storage temperature
17
10
10
-40 to +110
V
V
W
C
ABSOLUTE MAXIMUM RATINGS
(T
C
=25C
, unless otherwise noted
)
ELECTRICAL CHARACTERISTICS
(T
C
=25C
, unless otherwise noted
)
Symbol
Unit
I
DSS
I
GSS
V
TH
C
iss
C
oss
h
D
P
out
Threshold voltage
Note: Above parameters,ratings,limits and conditions are subject to change.
V
DS
=17V, V
GS
=0V
55
10
1
1.7
A
A
V
%
1.0
Note1: Above parameters are guaranteed independently.
V
GS
=10V, V
DS
=0V
V
DS
=7V, I
DS
=1mA
V
GS
=10V, V
DS
=0V,f=1MHz
V
DS
=10V, V
GS
=0V,f=1MHz
V
DS
=7.2V, P
in
=1W,f=450MHz
7
50
8
95
90
pF
pF
W
Conditions
Tc=25C (Note2)
C
2: Solder source pad on Copper Block(14
2.8
2mm)
TYPE No.
LOT No.
INDEX
MARK
2SK2974
MITSUBISHI RF POWER MOS FET
Nov. 97
47mm
5mm
5mm
2mm
6mm
3mm
41.5mm
C2
GR40-10
10pF
R1
CR10-562
5600
R2
CR10-510
51
C5
GR40-102
1000pF
C6
GR40-050
5pF
C4
GR40-090
9pF
C7
GR40-270
27pF
C3
10F,
100pF,10pF
in parallel
C8
10F,
1000pF,10pF
in parallel
C9
GR40-010
1pF
C10
GR40-102
1000pF
L1
4Turns AWG#26,
1.1
Enameled wire(mm)
C11
GR40-10
10pF
C1
GR40-102
1000pF
V
GG
INPUT
V
DD
OUTPUT
P
O
, add VS. V
DD
DRAIN SUPPLY VOLTAGE V
DD
(V)
2
4
34
5
8
16
20
0
10
28
32
30
26
24
22
18
14
12
10
4
3
6
7
9
P
O
add
2
6
8
36
38
40
42
44
46
48
50
I
DS
VS. V
GS
V
GS
(V)
0
1
2
3
5
1
2
3
6
4
4
0
0.5
1.5
2.5
3.5
4.5
5
TYPICAL PERFORMANCE DATA
EQUIVALENT CIRCUIT
Note: Board material-glass epoxi substrate
I
DS
VS. V
DS
V
DS
(V)
0
2
4
6
10
1
2
3
6
8
4
0
1
3
5
7
9
T
C
=25C
5
5.0V
4.5V
4.0V
3.5V
3.0V
2.5V
V
GS
=2.0V
V
DS
=9.6V
T
C
=25C
7
8
7
8
P
O
, add VS. Pin
INPUT POWER Pin (dBm)
0
10
34
15
30
16
20
0
40
28
32
30
26
24
22
18
14
12
10
4
5
20
25
35
20
40
50
0
70
80
60
30
10
P
O
add
2
6
8
36
38
40
42
44
46
48
50
54
36
40
20
48
52
50
46
44
42
38
34
32
30
24
22
26
28
56
58
60
62
64
66
68
70
micri strip line width=2.8mm,
r
:4.8,t=1.6mm
2SK2974
MITSUBISHI RF POWER MOS FET
Nov. 97
S-PARAMETER DATA(TYPICAL)
FREQ.
(MHz)
0.87151
0.87157
0.88083
0.89043
0.90037
0.90814
0.91746
0.92499
0.93036
0.93571
0.93941
0.94226
0.94534
0.94808
0.95312
0.95459
0.95601
0.95774
0.95926
0.96325
0.96168
0.96230
0.96227
0.96198
0.96267
0.96118
0.96264
0.96245
0.96221
0.96205
-159.60
-168.20
-170.84
-172.00
-172.68
-173.24
-173.67
-174.06
-174.43
-174.90
-175.30
-175.57
-176.04
-176.45
-176.90
-177.37
-177.87
-178.27
-178.87
-179.62
179.78
179.39
178.73
178.34
177.78
176.97
176.19
175.54
174.94
174.16
0.02263
0.02175
0.02059
0.01885
0.01735
0.01580
0.01446
0.01346
0.01268
0.01263
0.01272
0.01343
0.01496
0.01646
0.01744
0.01996
0.02182
0.02413
0.02631
0.02817
0.03099
0.03270
0.03460
0.03660
0.03846
0.04065
0.04304
0.04525
0.04730
0.04937
6.0727
0.6356
-2.3595
-2.7489
-1.3541
1.7258
7.6264
14.4503
22.2439
31.1934
40.3158
49.8125
57.6698
62.6933
67.3336
71.8032
74.1606
76.8760
76.4323
78.7422
78.8976
78.4777
79.5511
80.3997
79.7305
80.5372
80.7289
80.2058
79.8688
79.5813
8.98850
4.47355
2.87870
2.05082
1.57746
1.24044
1.01298
0.84559
0.71792
0.62459
0.54469
0.48199
0.42937
0.38937
0.35246
0.32860
0.29869
0.27468
0.25880
0.24131
0.22658
0.21380
0.20166
0.19253
0.18153
0.17023
0.16501
0.15789
0.14964
0.14381
91.5160
81.1597
72.5416
67.1200
61.7324
57.2616
53.9587
50.7854
47.8135
45.8295
43.5312
41.6364
40.1854
38.6233
37.2574
36.4384
35.0739
34.1654
33.0220
32.7404
31.8962
31.1023
30.5749
30.1079
30.7341
29.4614
29.5139
29.4685
29.2546
29.6617
0.75544
0.77551
0.78986
0.80776
0.83272
0.83624
0.85264
0.86892
0.87130
0.88564
0.89176
0.89413
0.90472
0.90807
0.91071
0.91875
0.91928
0.91707
0.92295
0.92417
0.92742
0.93216
0.93331
0.93364
0.93557
0.93599
0.93290
0.93594
0.93314
0.93009
-169.72
-171.14
-172.22
-171.94
-171.89
-171.98
-172.07
-172.50
-172.39
-172.57
-172.90
-173.01
-173.39
-173.70
-173.95
-174.46
-174.80
-175.08
-175.88
-176.19
-176.66
-177.69
-177.94
-178.72
-179.24
-179.44
179.28
178.62
178.32
177.13
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
1050
1100
1150
1200
1250
1300
1350
1400
1450
1500
S
11
S
12
S
21
S
22
V
DD
=7.2V,I
D
=600mA
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