Relay 9V (5 Pins)

Relay 9V (5 Pins) is a high-quality electronic component designed for Arduino, prototyping, and educational electronics. A relay is an electrically operated switch. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. The switch may have any number of contacts in multiple contact forms, such as make contacts, break contacts, or combinations thereof.

Relay Pin Configuration

Pin Number
Pin Name
Description

1
Coil End 1
Used to trigger(On/Off) the Relay, Normally one end is connected to 9V and the other end to ground

2
Coil End 2
Used to trigger(On/Off) the Relay, Normally one end is connected to 9V and the other end to ground

3
Common (COM)
Common is connected to one End of the Load that is to be controlled

4
Normally Close (NC)
The other end of the load is either connected to NO or NC. If connected to NC the load remains connected before the trigger

5
Normally Open (NO)
The other end of the load is either connected to NO or NC. If connected to NO the load remains disconnected before the trigger

Features of 5-Pin 9V Relay

Trigger Voltage (Voltage across coil): 9V DC
Trigger Current (Nominal current): 40mA
Maximum AC load current: 10A @ 250/125V AC
Maximum DC load current: 10A @ 30/28V DC
Compact 5-pin configuration with plastic moulding
Operating time: 10msec Release time: 5msec
Maximum switching: 300 operating/minute (mechanically)

Applications of Relay

Commonly used in switching circuits.
For Home Automation projects to switch AC loads
To Control (On/Off) Heavy loads at a pre-determined time/condition
Used in safety circuits to disconnect the load from the supply in the event of failure
Used in Automobiles electronics for controlling indicators glass motors etc.
It’s perfect for DIY makers, students, and anyone building custom electronic circuits or STEM kits.