【Control Devices】The 1-channel relay module uses genuine high quality DC5V relay and SMD opto-isolator supporting high/low level trigger, widely apply to control various AC/DC appliances, and other devices with large current. 【Load Range】NO(Normally open) maximum load < AC 250V/10A, < DC 30V/10A. Trigger current of opto-isolator: 5mA. 【Fault-tolerant Design】The relay will not operate even if the control line is disconnected. 【Universal Interface】Equipped with screwed terminal plate and fixed bolt holes(diameter: 3.1 mm) on both sides for easy installation. 【High Compatibility】The relay module can be controlled directly by 5V logic signals from microcontroller(8051, AVR, PIC, DSP, ARM, Raspberry Pi, MSP430, TTL logic etc) Specifications:
- Relay Type: 5V 1-Channel
- TTL gate circuit
- Quiescent Current: 5mA
- Maximum Current: 190mA
- Trigger Current: ≥ 5mA
- Trigger Voltage(LOW): ≥ 0-1.5V
- Trigger Voltage(HIGH): ≥ 2.5-5V
- NO Maximum Load: AC 250V, 10A or DC 30V, 10A
- Power Indicator: Green
- Relay Status Indicator: Red
- Size(L x W x H): 51*26*19mm
- Weight: 17g

How high/low level triggers selection terminal
High level trigger acts when jumper wire and high pin are short connected
Low level trigger acts when jumper wire and low pin are short connected

Input interface:
DC+ : positive pole of power supply (VCC, voltage=5V)
DC- : negative pole of power supply(GND)
IN : connection to control relay pickup by high/low level trigger

Output interface:
NO : connection of normally open state(the relay switch is dangling before pickup, the switch will connect with "COM" after pickup)
COM : common interface of relay switch
NC : connection of normally closed state(the relay switch is connected with "COM" before pickup, the switch will be dangling after pickup)

Package List:
10x 5V 1-Channel Relay Module