Preliminary data
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
January 2012 Doc ID 022696 Rev 1 1/14
14
STAC3933
RF power transistor:
HF/VHF/UHF RF power N-channel MOSFETs
Features
■Excellent thermal stability
■Common source configuration
■POUT = 350 W min. with 29 dB gain @ 30 MHz
■STAC air cavity packaging technology -
STAC® package
Description
The STAC3933 is an N-channel MOS field-effect
RF power transistor, intended for use in 100 V DC
large signal applications up to 200 MHz.
Figure 1. Pin connection
STAC177B
1 (drain)
2 (source)
3 (gate)
4 (source)
5 (source) on
backside
Table 1. Device summary
Order code Marking Base qty. Package Packaging(1)
STAC3933 STAC3933(1) 25 pcs STAC177B Plastic tray
1. For more details please refer to Chapter 6: Marking, packing and shipping specifications..
www.st.com
Contents STAC3933
2/14 Doc ID 022696 Rev 1
Contents
1 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Static . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Dynamic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Impedance data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Marking, packing and shipping specifications . . . . . . . . . . . . . . . . . . . 12
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
STAC3933 Electrical data
Doc ID 022696 Rev 1 3/14
1 Electrical data
1.1 Maximum ratings
(TCASE = 25 °C)
1.2 Thermal data
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
V(BR)DSS(1)
1. TJ = 150 °C
Drain source voltage 250 V
VDGR Drain-gate voltage (RGS = 1 MΩ)250V
VGS Gate-source voltage ±20 V
IDDrain current 20 A
PDISS Power dissipation 795 W
EAS
Avalanche energy
Single pulse (ID = 50 A - 800 µH coil) 1000 mJ
TJMax. operating junction temperature 200 °C
TSTG Storage temperature -65 to +150 °C
Table 3. Thermal data
Symbol Parameter Value Unit
RthJC Junction - case thermal resistance 0.22 °C/W
Electrical characteristics STAC3933
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2 Electrical characteristics
TCASE = +25 oC
2.1 Static
2.2 Dynamic
Table 4. Static
Symbol Test conditions Min Typ Max Unit
V(BR)DSS(1)
1. TJ = +150 °C
VGS = 0 V IDS = 100 mA 250 V
IDSS VGS = 0 V VDS = 100 V 2 mA
IGSS VGS = 20 V VDS = 0 V 500 nA
VGS(Q) VDS = 10 V ID = 250 mA 1.5 2.5 4.0 V
VDS(ON) VGS = 10 V ID = 10 A 2.5 3.5 V
GFS VDS = 10 V ID = 5 A 5 8 S
CISS VGS = 0 V VDS = 100 V f = 1 MHz 1000 pF
COSS VGS = 0 V VDS = 100 V f = 1 MHz 265 pF
CRSS VGS = 0 V VDS = 100 V f = 1 MHz 13 pF
Table 5. Dynamic
Symbol Test conditions Min Typ Max Unit
POUT VDD = 100 V IDQ = 250 mA f = 30 MHz 350 W
GPS VDD = 100 V IDQ = 250 mA POUT = 350 W f = 30 MHz 25 29 dB
hDVDD = 100 V IDQ = 250 mA POUT = 350 W f = 30 MHz 60 66 %
Load
mismatch
VDD = 100 V IDQ = 250 mA POUT = 300 W f = 30 MHz
all phase angles 3:1 VSWR
STAC3933 Electrical characteristics
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Table 6. VGS/GFS sorts
Marking Vgs(min) Vgs(max) Gfs(min) Gfs(max)
A1 1.50 1.75 5 6
A2 1.50 1.75 6 7
A3 1.50 1.75 7 8
A4 1.50 1.75 8 9
A5 1.50 1.75 9 10
A6 1.50 1.75 10 11
A7 1.50 1.75 11 12
A8 1.50 1.75 12 13
A9 1.50 1.75 13 14
B1 1.75 2.00 5 6
B2 1.75 2.00 6 7
B3 1.75 2.00 7 8
B4 1.75 2.00 8 9
B5 1.75 2.00 9 10
B6 1.75 2.00 10 11
B7 1.75 2.00 11 12
B8 1.75 2.00 12 13
B9 1.75 2.00 13 14
C1 2.00 2.25 5 6
C2 2.00 2.25 6 7
C3 2.00 2.25 7 8
C4 2.00 2.25 8 9
C5 2.00 2.25 9 10
C6 2.00 2.25 10 11
C7 2.00 2.25 11 12
C8 2.00 2.25 12 13
C9 2.00 2.25 13 14
D1 2.25 2.50 5 6
D2 2.25 2.50 6 7
D3 2.25 2.50 7 8
D4 2.25 2.50 8 9
D5 2.25 2.50 9 10
D6 2.25 2.50 10 11
D7 2.25 2.50 11 12
Electrical characteristics STAC3933
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D8 2.25 2.50 12 13
D9 2.25 2.50 13 14
E1 2.50 2.75 5 6
E2 2.50 2.75 6 7
E3 2.50 2.75 7 8
E4 2.50 2.75 8 9
E5 2.50 2.75 9 10
E6 2.50 2.75 10 11
E7 2.50 2.75 11 12
E8 2.50 2.75 12 13
E9 2.50 2.75 13 14
F1 2.75 3.00 5 6
F2 2.75 3.00 6 7
F3 2.75 3.00 7 8
F4 2.75 3.00 8 9
F5 2.75 3.00 9 10
F6 2.75 3.00 10 11
F7 2.75 3.00 11 12
F8 2.75 3.00 12 13
F9 2.75 3.00 13 14
G1 3.00 3.25 5 6
G2 3.00 3.25 6 7
G3 3.00 3.25 7 8
G4 3.00 3.25 8 9
G5 3.00 3.25 9 10
G6 3.00 3.25 10 11
G7 3.00 3.25 11 12
G8 3.00 3.25 12 13
G9 3.00 3.25 13 14
H1 3.25 3.50 5 6
H2 3.25 3.50 6 7
H3 3.25 3.50 7 8
H4 3.25 3.50 8 9
H5 3.25 3.50 9 10
H6 3.25 3.50 10 11
Table 6. VGS/GFS sorts (continued)
Marking Vgs(min) Vgs(max) Gfs(min) Gfs(max)
STAC3933 Electrical characteristics
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H7 3.25 3.50 11 12
H8 3.25 3.50 12 13
H9 3.25 3.50 13 14
I1 3.50 3.75 5 6
I2 3.50 3.75 6 7
I3 3.50 3.75 7 8
I4 3.50 3.75 8 9
I5 3.50 3.75 9 10
I6 3.50 3.75 10 11
I7 3.50 3.75 11 12
I8 3.50 3.75 12 13
I9 3.50 3.75 13 14
J1 3.75 4.00 5 6
J2 3.75 4.00 6 7
J3 3.75 4.00 7 8
J4 3.75 4.00 8 9
J5 3.75 4.00 9 10
J6 3.75 4.00 10 11
J7 3.75 4.00 11 12
J8 3.75 4.00 12 13
J9 3.75 4.00 13 14
Table 6. VGS/GFS sorts (continued)
Marking Vgs(min) Vgs(max) Gfs(min) Gfs(max)
Impedance data STAC3933
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3 Impedance data
Figure 2. Impedance data
Table 7. Impedance data (350 W load line)
Frequency ZIN (Ω)Z
DL (Ω)
10 MHz 6.56 - j9.75 12.17 + j2.76
20 MHz 2.80 - j5.78 10.6 + j4.81
30 MHz 1.96 - j3.90 8.73 + j5.94
40 MHz 1.69 - j2.89 7.00 + j6.35
50 MHz 1.59 - j2.30 5.58 + j6.32
60 MHz 1.55 - j1.93 4.47 + j6.06
70 MHz 1.55 - j1.71 3.62 + j5.72
80 MHz 1.54 - j1.58 2.97 + j5.35
90 MHz 1.53 - j1.50 2.46 + j4.99
100 MHz 1.52 - j1.45 2.07 + j4.65
Typical Drain
Load Impedance
Typical Input
Impedance
G
Zin
ZDL
D
S
STAC3933 Typical performance
Doc ID 022696 Rev 1 9/14
4 Typical performance
Figure 3. Capacitance vs. supply voltage Figure 4. Drain current vs. gate source
voltage
0
250
500
750
1000
1250
1500
1750
2000
2250
2500
2750
3000
0 20 40 60 80 100 120
Vdd (V)
Capacitance (pF)
Crss Coss Ci s s
F = 1 MHz
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
012345
Vgs (V)
Ids (A)
Tc = +25 °C
Vds = 100 V
Figure 5. Drain current vs. drain source
voltage
Figure 6. Gate source voltage vs. case
temperature
0
2
4
6
8
10
12
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Vds (V)
Ids (A)
Tc = +25 °C
Vgs = 10 V
0.4
0.6
0.8
1.0
1.2
1.4
1.6
-50-25 0 25 50 75100
Tc (°C)
Vgs (V), Normalize
d
Idq = 250 mA
Package mechanical data STAC3933
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5 Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Table 8. STAC177B mechanical data
Dim
mm inch
Min. Typ. Max. Min. Typ. Max.
A 5.72 5.97 0.225 0.235
B 6.73 6.99 0.265 0.275
C 21.84 22.10 0.860 0.870
D 28.70 28.96 1.130 1.140
E 28.02 1.103
F 0.10 0.15 0.004 0.006
G 0.81 0.032
H 1.45 1.70 0.057 0.067
I 5.79 6.15 0.228 0.242
J 27.43 28.45 1.080 1.120
K 15.01 15.27 0.591 0.601
STAC3933 Package mechanical data
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Figure 7. STAC177B mechanical drawing
8334044_A
Marking, packing and shipping specifications STAC3933
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6 Marking, packing and shipping specifications
Figure 8. Marking layout
Table 9. Packing and shipping specifications
Order code Packaging Pcs per
tray
Dry pack
humidity
VGS and GFS
code Lot code
STAC3933 Plastic tray 25 < 10 % Not mixed Not mixed
Table 10. Marking specifications
Symbol Description
XX VGS and GFS sort
CZ Assembly plant
xxx Last 3 digit of diffusion lot
VY Diffusion plant
MAR Country of origin
CZ Test and finishing plant
y Assembly year
yy Assembly week
STAC3933 Revision history
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7 Revision history
Table 11. Document revision history
Date Revision Changes
17-Jan-2012 1 First release.
STAC3933
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