SD2931-10W STMicroelectronics, SD2931-10W Datasheet - Page 14

• Manufacturer Part Number: SD2931-10W
• Description: Trans RF MOSFET N-CH 125V 20A 4-Pin Case M-174 Tray
• Manufacturer: STMicroelectronics

Test circuit @ 30 MHz
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Test circuit @ 30 MHz
Figure 24. 30 MHz test circuit schematic (engineering test circuit)
Figure 25. 30 MHz test circuit part list
C9, C11,C12,C13
C1,C4,C6,C7,C8,
Symbol
R1, R3
C2, C3
RFC1
PCB
FB1
FB2
FB3
C10
C14
T1
T2
R2
C5
9:1 transformer, 25 Ω flexible coax with extra shield .090 OD 15” long
1:4 transformer, 50 Ω flexible coax .225 OD 15” long
Toroid 1.7” OD .30” ID 220 μ 4 turns
Surface mount EMI shield bead
Toroid 1.7” OD .300” ID 220μ 3 turns
Toroid 0.5” OD 0.30” ID 125μ 4 turns 12 awg wire
0.62” woven fiberglass, 1 oz. Copper, 2 Sides, εr = 2.55
1 KΩ 1 W chip resistor
680 Ω 3 W wirewound resistor
0.1 μF ATC chip cap
750 pF ATC chip cap
470 pF ATC chip cap
10 μF 63 V electrolytic capacitor
100 μF 63 V electrolytic capacitor
Doc ID 7076 Rev 8
Description
SD2931-10