1/5
TARGET DATA
May, 27 2003
SD3931-10
RF POWER TRANSISTORS
HF/VHF/UHF N-CHANNEL MOSFETs
GOLD METALLIZATION
EXCELLENT THERMAL STABILITY
COMMON SOURCE CONFIGURATION
P
OUT
= 150 W MIN. WITH 21.7 dB GAIN @
150 MHz
DESCRIPTION
The SD3931-10 is a gold metallized N-Channel
MOS field-effect RF power transistor. It is intended
for use in 100 V dc large signal applications up to
150 MHz.
PIN CONNECTION
1
3
4
2
1. Drain
2. Source
3. Gate
4. Source
M174
epoxy sealed
ORDER CODE
SD3931-10
BRANDING
SD3931-10
ABSOLUTE MAXIMUM RATINGS (T
CASE
= 25
C)
Symbol
Parameter
Value
Unit
V
(BR)DSS
Drain Source Voltage
250
V
V
DGR
Drain-Gate Voltage (R
GS
= 1M
)
250
V
V
GS
Gate-Source Voltage
20
V
I
D
Drain Current
10
A
P
DISS
Power Dissipation
437
W
T
j
Max. Operating Junction Temperature
200
C
T
STG
Storage Temperature
-65 to +150
C
THERMAL DATA
R
th(j-c)
Junction -Case Thermal Resistance
0.4
C/W
SD3931-10
2/5
ELECTRICAL SPECIFICATION (T
CASE
= 25
C)
STATIC
DYNAMIC
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
V
(BR)DSS
V
GS
= 0 V
I
DS
= 100 mA
250
V
I
DSS
V
GS
= 0 V
V
DS
= 100 V
5
mA
I
GSS
V
GS
= 20 V
V
DS
= 0 V
5
A
V
GS(Q)
V
DS
= 10 V
I
D
= 250 mA
1.5
4.0
V
V
DS(ON)
V
GS
= 10 V
I
D
= 5 A
5
V
G
FS
V
DS
= 10 V
I
D
= 2.5 A
3
mho
C
ISS
V
GS
= 0 V
V
DS
= 100 V
f = 1 MHz
649
pF
C
OSS
V
GS
= 0 V
V
DS
= 100 V
f = 1 MHz
134
pF
C
RSS
V
GS
= 0 V
V
DS
= 100 V
f = 1 MHz
6
pF
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
P
OUT
V
DD
= 100 V
I
DQ
= 0.2 A
f = 150 MHz
150
W
G
PS
V
DD
= 100 V
I
DQ
= 0.2 A P
OUT =
150 W
f = 150 MHz
21.7
dB
D
V
DD
= 100 V
I
DQ
= 0.2 A P
OUT
= 150 W
f = 150 MHz
TBD
%
Load
Mismatch
V
DD
= 100 V
I
DQ
= 0.2 A P
OUT =
150 W
f = 150 MHz
All Phase Angles
10:1
VSWR
IMPEDANCE DATA
FREQ. MHz
Z
IN
(
)
Z
DL
(
)
150
0.42 - j 3.1
3.4 + j 5.5
Typical Input
Impedance
Typical Drain
Load Impedance
G
D
S
Z
DL
Zin
IMPEDANCES SCHEME
3/5
SD3931-10
Power Gain Vs Output Power
f =150 MHz
Vds=100 V
19.0
19.5
20.0
20.5
21.0
21.5
22.0
22.5
23.0
23.5
24.0
0
50
100
150
200
250
Pout (W)
Gp
(
d
B
)
Idq = 0.1 A
Idq = 1 A
Idq = 0.2 A
Idq = 0.3 A
Idq = 0.5 A
TYPICAL PERFORMANCE
Input Return Loss Vs Output Power
f =150 MHz
Vds = 100 V
-20
-15
-10
-5
0
0
50
100
150
200
250
Pout (W )
RL
(
d
B
)
Idq = 1 A
Idq = 0.2 A
Efficiency Vs Output Power
f =150 MHz
Vds = 100 V
10
15
20
25
30
35
40
45
50
55
60
0
50
100
150
200
250
Pout (W)
nd (
%
)
Idq = 0.2 A
Idq = 1 A
Output Power Vs Input Power
f =150 MHz
Vds = 100 V
0
50
100
150
200
250
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Pin (W )
P
out (
W
)
Idq = 0.2 A
Idq = 1 A
Drain Current Vs Gate-Source Voltage
Vds = 16 V
0
2
4
6
8
10
12
14
0
1
2
3
4
5
6
7
Vgs (V)
Ids
(
A
)
SD3931-10
4/5
1011000D
Controlling Dimension in Inches
M174 (.500 DIA 4/L N/HERM W/FLG) MECHANICAL DATA
mm
Inch
MIN.
TYP.
MAX
MIN.
TYP.
MAX
A
5.56
5.584
0.219
0.230
B
3.18
0.125
C
6.22
6.48
0.245
0.255
D
18.28
18.54
0.720
0.730
E
3.18
0.125
F
24.64
24.89
0.970
0.980
G
12.57
12.83
0.495
0.505
H
0.08
0.18
0.003
0.007
I
2.11
3.00
0.083
0.118
J
3.81
4.45
0.150
0.175
K
7.11
0.280
L
25.53
26.67
1.005
1.050
M
3.05
3.30
0.120
0.130
DIM.
5/5
SD3931-10
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is registered trademark of STMicroelectronics
2003 STMicroelectronics - All Rights Reserved
All other names are the property of their respective owners.
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -
Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A.
http://www.st.com
PDF 
ZIP