MITSUBISHI RF POWER MOS FET
2SK2973
DESCRIPTION
2SK2973 is a MOS FET type transistor specifically designed for
VHF/UHF power amplifiers applications.
OUTLINE DRAWING
4.6MAX
1.6±0.2
Dimensions in mm
1.5±0.1
FEATURES
• High power gain:Gpe≥13dB
@V
DD
=9.6V,f=450MHz,Pin=17dBm
• High efficiency:55% typ.
• Source case type SOT-89 package
(connected internally to source)
1
2
3
APPLICATION
For drive stage and output stage of power amplifiers in VHF/UHF
band portable radio sets.
1.5
0.53
MAX
0.48MAX
1 : DRAIN
2 : SOURCE
3 : GATE
0.4 +0.03
-0.05
3.0
MARKING
SOT-89
MARKING
TYPE No.
K1
LOT No.
ABSOLUTE MAXIMUM RATINGS
(T
C
=25˚C, unless otherwise noted)
Symbol
V
DSS
V
GSS
P
ch
T
j
T
stg
Parameter
Drain to source voltage
Gate to source voltage
Channel dissipation
Junction temperature
Storage temperature
Conditions
Ratings
17
±10
1.5
150
-40 to +110
Unit
V
V
W
˚C
˚C
Tc=25˚C
(Note2)
Note1: Above parameters are guaranteed independently.
2: Solder on printed board(Copper leaf area;70×70mm,t=1.6mm Epoxy glass)
ELECTRICAL CHARACTERISTICS
(T
C
=25˚C, unless otherwise noted)
Symbol
I
DSS
I
GSS
V
TH
C
iss
C
oss
P
out
h
D
Parameter
Test conditions
V
DS
=12V, V
GS
=0V
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
=9.6V, P
in
=50mW,f=450MHz
Min
Limits
Typ
Max
10
1
1.8
Unit
µA
µA
V
pF
pF
W
%
Threshold voltage
1.2
10
8
1.2
55
1
45
Note: Above parameters,ratings,limits and conditions are subject to change.
Nov. ´97
MITSUBISHI RF POWER MOS FET
2SK2973
TYPICAL PERFORMANCE DATA
I
DS
VS. V
DS
1.2
T
C
=25˚C
5.0V
1.0
4.5V
0.8
4.0V
0.6
3.5V
3.0V
2.5V
V
GS
=2.0V
0.0
0
1
2
3
4
5
6
7
8
9
10
0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
0.6
0.8
1.0
1.2
V
DS
=9.6V
T
C
=25˚C
I
DS
VS. V
GS
0.4
0.2
0.4
0.2
V
DS
(V)
V
GS
(V)
P
O
, add VS. Pin
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
85
80
75
P
O
70
65
60
55
η
add
50
45
40
35
30
25
20
15
10
5
0
4 6 8 10 12 14 16 18 20 22 24 26
34
32
30
28
26
24
22
20
18
16
14
12
10
3
4
5
P
O
, add, t VS. V
DD
95
90
P
O
85
80
75
70
65
60
η
add
55
50
45
40
6
7
8
9
35
10 11 12 13
η
t
0
2
INPUT POWER Pin (dBm)
DRAIN SUPPLY VOLTAGE V
DD
(V)
EQUIVALENT CIRCUIT
@V
DD
=9.6V Match
39mm
1mm
3mm
4.5mm
8mm
4mm
37mm
C2
GR40-220
22pF
C1
GR40-102
1000pF
L1
3Turns AWG#31,φ0.8
Enameled wire(mm)
L3
R1
CR10-103
10000Ω
R2
CR10-101
100Ω
C6
GR40-102
1000pF
3Turns AWG#31,φ0.8
Enameled wire(mm)
C10
GR40-100
10pF
L2
5Turns AWG#26,φ1.1
Enameled wire(mm)
C11
GR40-102
1000pF
INPUT
V
GG
C3
C4
C5
GR40-10 GR40-102
10pF
1000pF
22 µF 50V
V
DD
C7
C8
C9
GR40-10 GR40-102
10pF
1000pF
22 µF 50V
OUTPUT
Note: Board material-glass epoxi substrate
micro strip line width=1mm,
ε
r :4.8,t=0.6mm
Nov. ´97
MITSUBISHI RF POWER MOS FET
2SK2973
S-PARAMETER DATA(TYPICAL)
FREQ.
(MHz)
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
FREQ.
(MHz)
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
0.969
0.895
0.818
0.766
0.731
0.713
0.699
0.691
0.694
0.692
0.694
0.698
0.705
0.711
0.714
0.719
0.731
0.735
0.745
0.750
0.757
0.769
0.775
0.782
0.793
0.799
0.807
0.814
0.816
0.829
0.962
0.877
0.797
0.741
0.711
0.691
0.683
0.680
0.680
0.684
0.689
0.695
0.704
0.710
0.719
0.725
0.736
0.739
0.751
0.759
0.763
0.772
0.777
0.788
0.793
0.797
0.804
0.809
0.816
0.825
S
11
-30.909
-57.078
-76.635
-91.748
-103.034
-111.898
-119.086
-125.145
-130.461
-135.027
-139.643
-143.458
-147.473
-151.333
-154.997
-158.593
-162.473
-166.136
-169.642
-173.163
-176.805
-179.819
176.141
172.631
169.504
165.990
162.470
159.531
156.335
153.305
0.019
0.030
0.036
0.038
0.038
0.036
0.036
0.036
0.038
0.041
0.047
0.054
0.062
0.072
0.082
0.094
0.106
0.118
0.131
0.145
0.158
0.170
0.183
0.195
0.207
0.220
0.230
0.240
0.251
0.259
S
12
70.131
55.726
44.160
40.231
38.866
41.687
45.980
54.414
62.799
70.422
77.349
81.691
85.975
88.284
89.530
89.900
89.449
88.195
86.908
85.477
83.221
81.026
78.964
76.775
74.515
72.443
69.906
67.648
65.743
63.341
15.173
13.006
10.709
8.877
7.448
6.331
5.489
4.833
4.299
3.863
3.488
3.180
2.937
2.710
2.509
2.346
2.190
2.032
1.910
1.767
1.663
1.561
1.448
1.351
1.263
1.168
1.082
1.008
0.953
0.902
S
21
155.450
134.869
119.517
107.569
97.989
90.515
83.918
78.172
73.186
68.210
63.808
59.700
55.733
51.615
48.016
44.142
40.196
36.568
32.944
29.492
26.400
23.026
19.886
17.290
14.209
12.331
10.481
9.729
9.000
8.358
0.517
0.497
0.482
0.475
0.478
0.482
0.490
0.504
0.515
0.528
0.538
0.550
0.563
0.575
0.587
0.599
0.607
0.614
0.628
0.632
0.640
0.648
0.654
0.656
0.659
0.655
0.651
0.658
0.661
0.668
V
DD
=7V,I
D
=100mA
S
22
-33.518
-60.987
-80.439
-94.398
-103.912
-111.111
-117.019
-121.733
-125.706
-129.494
-132.827
-136.175
-139.265
-142.636
-145.786
-149.500
-152.741
-156.200
-159.932
-163.560
-167.393
-171.167
-174.329
-177.882
178.966
176.140
173.319
171.233
169.940
168.226
V
DD
=13V,I
D
=100mA
S
11
-28.167
-52.309
-71.057
-85.910
-97.535
-106.770
-114.312
-120.895
-126.479
-131.266
-136.032
-140.107
-144.290
-148.279
-151.821
-155.417
-159.212
-162.934
-166.562
-170.178
-173.594
-177.132
179.157
175.539
172.187
169.041
165.082
162.211
158.932
155.796
0.014
0.023
0.028
0.030
0.030
0.030
0.028
0.031
0.032
0.037
0.043
0.050
0.059
0.069
0.079
0.091
0.102
0.116
0.128
0.142
0.155
0.168
0.182
0.195
0.208
0.221
0.233
0.243
0.255
0.264
S
12
71.719
58.790
50.602
46.574
45.714
48.027
55.670
62.737
73.404
80.763
87.314
92.097
95.477
96.935
98.151
97.664
96.976
95.996
94.383
92.828
90.415
87.874
85.838
82.989
80.799
78.268
75.458
72.924
71.005
68.509
15.673
13.660
11.486
9.627
8.179
7.015
6.113
5.388
4.823
4.335
3.935
3.611
3.331
3.095
2.875
2.685
2.511
2.342
2.215
2.064
1.936
1.817
1.693
1.585
1.476
1.360
1.263
1.163
1.097
1.039
S
21
157.229
137.611
122.578
110.613
101.187
93.440
86.760
80.878
75.886
70.903
66.204
62.009
58.175
53.864
49.913
46.260
42.090
38.080
34.580
30.750
27.264
23.902
20.361
17.461
14.114
11.831
9.495
8.102
7.206
6.401
0.584
0.550
0.519
0.498
0.490
0.487
0.491
0.500
0.508
0.519
0.529
0.539
0.551
0.564
0.575
0.585
0.595
0.605
0.619
0.623
0.632
0.642
0.650
0.653
0.657
0.656
0.651
0.659
0.660
0.668
S
22
-25.160
-46.574
-62.601
-75.182
-84.524
-91.913
-98.343
-103.694
-107.961
-112.507
-116.209
-120.031
-123.436
-126.986
-130.446
-134.470
-137.974
-141.841
-145.830
-149.638
-153.862
-158.231
-161.799
-165.820
-169.544
-172.628
-176.074
-178.678
179.809
177.692
Nov. ´97
