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2.1.5. SCH base bale scheme SCH scheme Uhlan MB 4DI4DO4ALed motherboard V1.0  SCH scheme Uhlan MB 4DI4DO4ALed motherboard V1.0 Power Supply BOM Qty
| Value | Device | Parts | Description | | 4 | | LED3MM | LED1, LED2, LED3, LED4 | 3mm red LED
| | 1 | | LED5MM | LED5 | 5mm LED Green | | 1 | | W237-103 | X11 | PCB terminal connections for 3-way | | 9 | 1K | R-EU_0207/10 | R5, R8, R9, R10, R12, R13, R14, R16, R18 | Standard resistor ¼ watt 5%
| | 1 | 1K2 | R-EU_0207/10 | R20 | ¼ watt resistor 1% * Depends IC2, see documentation
| | 1 | 1N4004 | 1N4004 | D1 | Standard Diode 1A
| | 4 | 1uF | CPOL-EUE2.5-5 | C1, C4, C7, C9 | 1uF/25V electrolytic capacitor
| | 1 | 3K6 | R-EU_0207/10 | R19 | ¼ watt resistor 1% * Depends IC2, see documentation | | 4 | 4N25M | 4N25M | OK1, OK2, OK3, OK4 | 4N25M optocoupler or equivalent
| | 2 | 5A | FUSE2P | F1, F2 | PCB fuse holder for fuse 5x20mm 5A | | 4 | 5V1 | ZENER-DIODEDO35Z10 | D2, D3, D4, D5 | 0.4 W zener diode BZX79-B5V1 5.1V or similar | | 8 | 10K | R-EU_0207/10 | R1, R2, R3, R4, R6, R7, R11, R15 | Standard resistor ¼ watt 5% | | 1 | 24V_In | W237-102 | X13 | PCB terminal connections for 2-way | | 1 | 24V_Out | W237-102 | X14 | PCB terminal connections for 2-way | | 1 | 100 | R-EU_0309/12 | R17 | * Not necessary
| | 1 | 100nF | C-EU050-025X075 | C8 | MKT Capacitor Miniature 100nF/100V | | 1 | 100uF/35V | CPOL-EUE3.5-8 | C10 | 100uF/35V electrolytic capacitor
| | 1 | 100uH | L-USTJ2-U2 | L1 | Coil Inductor 100uH, 1A
| | 1 | 1000uF/16V | CPOL-EUE5-10.5 | C11 | 1000uF/16V electrolytic capacitor, preferably 105 ° C low esr
| | 1 | CPU | CPU-2 | MO1 | 2 female 9-way PCB connector x 1 rows step 2.54 mm for poles
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Qty
| Value | Device | Parts | Description | | 1 | D04PA-PAD | D04PA-PAD | $ 1 | PCB heatsink for TO220 package * Not required 24V relays
| | 1 | DI | W237-102 | X6 | PCB terminal connections for 2-way | | 1 | DO1 | W237-103 | X2 | PCB terminal connections for 3-way | | 1 | DO2 | W237-103 | X4 | PCB terminal connections for 3-way | | 1 | DO3 | W237-103 | X5 | PCB terminal connections for 3-way | | 1 | DO4 | W237-103 | X7 | PCB terminal connections for 3-way | | 1 | F0, 22 | R-EU_0207/10 | R21 | Fuse resistance of 0.22 Ω ¼ watt * See documentation | | 4 | G5LE | G5LE | K1, K2, K3, K4 | PCB power relay 10A SPDT Omron type G5LE 24Vdc coil, or similar
| | 1 | LM2575TV-5.0 or LM2575T-ADJ
| LM2575TV | IC2 | 5v switching regulator IC 1A * See documentation
| | 1 | Lan +24 V | W237-102 | X3 | PCB terminal connections for 2-way | | 1 | Led_A | W237-102 | X10 | PCB terminal connections for 2-way | | 1 | Led_B | W237-102 | X8 | PCB terminal connections for 2-way | | 1 | Led_C | W237-102 | X9 | PCB terminal connections for 2-way | | 1 | Led_D | W237-102 | X12 | PCB terminal connections for 2-way | | 4 | POWER_LED | POWER_LED_2 | MO2, MO3, MO4, MO5 | Controllers Drivers for leds, PowerLed
| | 1 | Rs-485 | W237-103 | X1 | PCB terminal connections for 3-way | | 1 | UF4003 | UF4003 | D6 | Ultrafast power diode or similar UF4003 1A
| | 1 | ULN2803 | ULN2803A | IC1 | Array Transistor 50V 500mA or equivalent ULN2803A |
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