STAC2942B STMicroelectronics, STAC2942B Datasheet

TRANS RF PWR N-CH 350W STAC244B

STAC2942B

Manufacturer Part Number
STAC2942B
Description
TRANS RF PWR N-CH 350W STAC244B
Manufacturer
STMicroelectronics
Datasheet

Specifications of STAC2942B

Transistor Type
N-Channel
Frequency
175MHz
Voltage - Rated
130V
Current Rating
40A
Current - Test
250mA
Voltage - Test
50V
Power - Output
450W
Package / Case
4-SMD
Drain-source Breakdown Voltage
130 V
Gate-source Breakdown Voltage
20 V
Continuous Drain Current
40 A
Power Dissipation
625 W
Forward Transconductance Gfs (max / Min)
5 S
Mounting Style
SMD/SMT
Transistor Polarity
N-Channel
Drain Source Voltage Vds
130V
Continuous Drain Current Id
40A
Operating Frequency Range
250MHz
Rf Transistor Case
STAC244B
No. Of Pins
4
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Gain
-
Noise Figure
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-8765

Available stocks

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Manufacturer
Quantity
Price
Part Number:
STAC2942B
Manufacturer:
STMicroelectronics
Quantity:
135
Part Number:
STAC2942B
Manufacturer:
ST
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Part Number:
STAC2942B
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Quantity:
20 000
Part Number:
STAC2942BW
Manufacturer:
ST
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Features
Description
The STAC2942B is a gold metallized N-channel
MOS field-effect RF power transistor. It is
intended for use in 50 V DC large signal
applications up to 250 MHz.
Table 1.
April 2010
Gold metallization
Excellent thermal stability
Common source push-pull configuration
P
with 21 dB gain @ 175 MHz
In compliance with the 2002/95/EC
European directive
OUT
STAC2942B
Order code
= 350 W min.
Device summary
STAC2942
Marking
Doc ID 15501 Rev 2
HF/VHF/UHF N-channel MOSFETs
Figure 1.
1. Drain
2. Gate
STAC244B
Package
2
Pin connection
2
RF power transistor
STAC244B
Air cavity
3
STAC2942B
1
Packaging
Plastic tray
3. Source
(Bottom side)
1
www.st.com
1/15
15

Related parts for STAC2942B

STAC2942B Summary of contents

Page 1

... W min. OUT with 21 dB gain @ 175 MHz ■ In compliance with the 2002/95/EC European directive Description The STAC2942B is a gold metallized N-channel MOS field-effect RF power transistor intended for use large signal applications up to 250 MHz. Table 1. Device summary Order code STAC2942B ...

Page 2

... Contents 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2/15 Doc ID 15501 Rev 2 STAC2942B ...

Page 3

... STAC2942B 1 Electrical data 1.1 Maximum ratings Table 2. Absolute maximum ratings (T Symbol (1) V Drain source voltage (BR)DSS (1) V Drain-gate voltage (R DGR V Gate-source voltage GS I Drain current D P Power dissipation DISS T Max. operating junction temperature J T Storage temperature STG 150 °C J 1.2 Thermal data Table 3 ...

Page 4

... D DD 4/15 Test conditions I = 100 250 MHz DS Test conditions = 2 x 250 mA 175 MHz 250 mA 175 MHz DQ IN Doc ID 15501 Rev 2 STAC2942B Min. Typ. Max. Unit 130 V µA 100 250 nA 1.5 2.5 4 425 pF 202 Min. Typ. Max. Unit 350 450 ...

Page 5

... STAC2942B 3 Impedance Figure 2. Current conventions Table 6. Impedance data Freq. (MHz) 175 MHz Note: Measured gate to gate and drain to drain, respectively. Z (Ω) IN 2.0 - j2.0 Doc ID 15501 Rev 2 Impedance Z (Ω) DL 3.5 + j5.2 5/15 ...

Page 6

... Capacitances vs drain supply voltage 1000 Freq MHz 900 800 700 Ciss Crss 600 Coss 500 400 300 200 100 Supply voltage (V) Figure 5. Output power vs gate voltage 6/15 Figure 4. AM00556v1 Figure 6. Doc ID 15501 Rev 2 STAC2942B Output power vs drain supply voltage Output power vs input power ...

Page 7

... STAC2942B Figure 7. Output power vs input power and case temperature Figure 9. Power gain vs output power and case temperature Figure 8. Efficiency vs output power and case temperature Doc ID 15501 Rev 2 Typical performance 7/15 ...

Page 8

... Typical performance Figure 10. Maximum safe operating area Figure 11. Transient thermal impedance 8/15 Doc ID 15501 Rev 2 STAC2942B ...

Page 9

... STAC2942B Figure 12. Transient thermal model Doc ID 15501 Rev 2 Typical performance 9/15 ...

Page 10

... ST406 variable capacitor 47 pF ATC 100B chip capacitor 43 pF ATC 100B chip capacitor 470 pF ATC 100B chip capacitor 10,000 pF ATC 200B chip capacitor .1 µF 200 V chip capacitor 10 µF 100 V electrolytic capacitor . variable capacitor 430 Ω , 1/2 W chip resistor Doc ID 15501 Rev 2 STAC2942B ...

Page 11

... STAC2942B Table 7. 175 MHz test circuit component part list (continued) Component R3 FB1,FB5 FB2, FB6 FB3, FB4 PCB Figure 14. Circuit layout Description 270 Ω 1/2 W axial lead resistor RG-316 50 Ω 11.8" thru ferrite toroid RG-142 50 Ω 11.8" 4:1, RG-316 25 Ω , 5.9", 2 turns thru ferrite core 1:4, 25 Ω ...

Page 12

... Controlling dimension: inches Doc ID 15501 Rev 2 STAC2942B Inch Min Typ Max 0.210 0.190 0.128 0.285 0.245 0.385 0.765 0.390 0.180 0.600 1.100 0.988 1.132 0.200 1 ...

Page 13

... STAC2942B Figure 15. Package dimensions 45° 45° 10° H2 Doc ID 15501 Rev 2 Package mechanical data R0.060 [R1.52mm] R0.025 [R0.63mm] R0.020 [R0.51mm 13/15 ...

Page 14

... Revision history 7 Revision history Table 9. Document revision history Date 20-Mar-2009 16-Apr-2010 14/15 Revision 1 First release. Figure 10, Figure 11 2 Added Doc ID 15501 Rev 2 STAC2942B Changes Figure 12. and ...

Page 15

... STAC2942B Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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