Eight(8) Relay Module,board, For 8051, Pic Project, 12v
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Eight(8) Relay Module,board, For 8051, Pic Project, 12v:
March 15 2011 revised.
1 PCS Eight channel relay module board, for PIC / AVR / 8051 etc project.
LED indicator for each relay channel.
Use BC517 Darlington transistor driving relay, Improve the reliability of action.
FR-4 Fiber glass PCB ( Double Layer ).
PCB thickness: 1.6mm.
Size: 100 x 88 x 20mm (approximately 3.94 x 3.46 x 0.79 inch).
Power Supply: 12V DC / 400mA (relay all ON).
Input control signal voltage: 0V - 0.5V Low stage (relay is 0.5V – 2.5V (unknown 2.5V - 20V High state (relay is ON).
Input control signal high state 2.5V: 3.3V: 5V: 12V: 20V: 1.9mA.
Relay Coil: Voltage: 12V DC. Current: Contact Capacity: 250 VAC/10 Amp or 30 VDC/10 Manufacturer: Type: Datasheet:
Schematic (a relay):
Wire connection and PCB size: VDD: Power supply input, 12V GND: Power supply ground and control signal CH_x: Control signal input, Low: relay OFF, High: relay COM / NO / NC: (C1=COM1, C2=COM2) Control signal state low, the relay OFF, COM - NO disconnected, COM - NC Control signal stage high, the relay ON, COM - NO connected, COM - NC disconnected.