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STAC2942B
RF power transistor
HF/VHF/UHF N-channel MOSFETs
Features
Gold metallization
Excellent thermal stability
Common source push-pull configuration
POUT = 350 W min.
with 21 dB gain @ 175 MHz
In compliance with the 2002/95/EC
European directive
Description STAC244B
Air cavity
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 Figure 1. Pin connection
applications up to 250 MHz.
1
1
2
2 3
1. Drain 3. Source
2. Gate (Bottom side)
Table 1. Device summary
Order code Marking Package Packaging
STAC2942B STAC2942 STAC244B Plastic tray
April 2010 Doc ID 15501 Rev 2 1/15
www.st.com 15
Contents STAC2942B
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 Electrical data
1 Electrical data
1.1 Maximum ratings
Table 2. Absolute maximum ratings (TCASE = 25 ◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo