SD2942 STMicroelectronics, SD2942 Datasheet - Page 11
![TRANS RF N-CH HF/VHF/UHF M244](/photos/5/64/56418/497-m244_series_sml.jpg)
SD2942
Manufacturer Part Number
SD2942
Description
TRANS RF N-CH HF/VHF/UHF M244
Manufacturer
STMicroelectronics
Datasheet
1.SD2942.pdf
(16 pages)
Specifications of SD2942
Transistor Type
N-Channel
Frequency
175MHz
Gain
17dB
Voltage - Rated
130V
Current Rating
40A
Current - Test
500mA
Voltage - Test
50V
Power - Output
350W
Package / Case
M244
Configuration
Single Dual Drain Dual Source Dual Gate
Transistor Polarity
N-Channel
Forward Transconductance Gfs (max / Min)
5 S
Drain-source Breakdown Voltage
130 V
Gate-source Breakdown Voltage
+/- 20 V
Continuous Drain Current
40 A
Power Dissipation
500 W
Maximum Operating Temperature
+ 200 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 65 C
Application
HF/VHF/UHF
Channel Type
N
Channel Mode
Enhancement
Drain Source Voltage (max)
130V
Output Power (max)
350W
Power Gain (typ)@vds
17dB
Frequency (max)
250MHz
Package Type
Case M-244
Pin Count
4 +Tab
Forward Transconductance (typ)
5(Min)S
Input Capacitance (typ)@vds
415@50VpF
Output Capacitance (typ)@vds
236@50VpF
Reverse Capacitance (typ)
17@50VpF
Operating Temp Range
-65C to 200C
Drain Efficiency (typ)
61%
Mounting
Surface Mount
Number Of Elements
1
Power Dissipation (max)
500000mW
Vswr (max)
5(Min)
Screening Level
Military
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Noise Figure
-
Lead Free Status / Rohs Status
Details
Other names
497-5471
SD2942
SD2942
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SD2942
Manufacturer:
ST
Quantity:
20 000
Part Number:
SD2942W
Manufacturer:
ST
Quantity:
20 000
SD2942
Table 7.
R1,R2,R5,R6
R3,R4
R7,R8
R9,R10
C1,C4
C2,C3,C7,C8,C17,C19,C20,C21
C5
C6
C9,C10
C11,C12, C13
C14,C15,C24,C25
C16,C18
C22,C23
C26,C27
C28
B1
B2
T1
T2
L1
FB1,FB5
FB2,FB6
FB3
FB4
PCB
175 MHz test circuit component part list
Symbol
470 Ω 1 W, surface mount chip resistor
360 Ω 0.5 W, carbon comp. axial lead resistor or equivalent
560 Ω 2 W, resistor two turn wire air-wound axial lead resistor
20 KΩ 3.09 W, 10 turn wirewound precision potentiometer
680 pF ATC 130B surface mount ceramic chip capacitor
10000 pF ATC 200B surface mount ceramic chip capacitor
75 pF ATC 100B surface mount ceramic chip capacitor
ST40 25 pF - 115 pF miniature variable trimmer
47 pF ATC 100B surface mount ceramic chip capacitor
43 pF ATC 100B surface mount ceramic chip capacitor
1200 pF ATC 700B surface mount ceramic chip capacitor
470 pF ATC 700B surface mount ceramic chip capacitor
0.1 µF / 500 V surface mount ceramic chip capacitor
0.01 µF / 500 V surface mount ceramic chip capacitor
10 µF / 63 aluminum electrolytic axial lead capacitor
50 Ω RG316 O.D 0.076[1.93] L = 11.80[299.72] flexible coaxial cable 4 turns
thru fair-rite bead
50 Ω RG-142B O.D 0.165[4.19] L = 11.80[299.72] flexible coaxial cable
R.F. transformer 4:1, 25 Ω O.D RG316-25 O.D 0.080[2.03] L = 5.90[149.86]
flexible coaxial cable 2 turns thru fair-rite multi-aperture core
R.F. transformer 1:4, 25 Ω semi-rigid coaxial cable O.D. 0.141[3.58] L =
5.90[149.86]
Inductor λ 1/4 wave 50 Ω O.D 0.165[4.19] L = 11.80 [299.72] flexible coaxial
cable 2 turns thru fair-rite bead
Shield bead
Multi-aperture core
Multilayer ferrite chip bead (surface mount)
Surface mount emi shield bead
Woven glass reinforced ptfe microwave Laminate 0.06”, 1 oz EDCu, both
sides, εr = 2.55
Doc ID 11736 Rev 3
Description
Test circuit
11/16