SD2942 STMicroelectronics, SD2942 Datasheet - Page 11

• Manufacturer Part Number: SD2942
• Description: TRANS RF N-CH HF/VHF/UHF M244
• Manufacturer: STMicroelectronics

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
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
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