5v relay is a commonly used device in automatic control systems, used to connect and disconnect circuits to form automatic control and remote control circuits. Whether as the core component of the relay signal system, or the interface component of the electronic or computer signal system, it plays an important role. The same is true for power relays. Today we will analyze the matters needing attention when using 5v relay.

1. Rated operating voltage or rated operating current: This refers to the voltage or current required by the coil during high-power operation. The structure of one model is roughly the same. In order to adapt to circuit applications of different voltages, a large model usually has multiple rated operating voltages or rated operating currents, and they are distinguished by specifications, such as: 5v relay.

2. DC resistance: This refers to the DC resistance of the 5v relay coil. In some product manuals, the rated working voltage and DC resistance are given. At this time, the rated working current can be calculated according to Ohm's law. If the rated working current and DC resistance are known, the rated working voltage can also be obtained.

3. Pull-in current: It refers to the minimum current that 5v relay can produce a pull-in action. In actual use, in order to make small high-power relays reliable pull-in, the given voltage can be equal to or slightly higher than the rated working voltage. Generally, it should not be greater than 1.5 times the rated working voltage. Otherwise, the coil will be burnt.

4. Release current: It refers to the maximum current that the 5v relay generates to release the action. If the current of the small high-power relay in the pull-in state is reduced, when the current is reduced to a certain level, the small high-power relay returns to the state when it is not energized. This process is called the release action of the small high-power relay. The release current is much smaller than the pull-in current.

5. Load: It refers to the voltage or current allowed by the 5v relay contact. It determines the size of the small high-power relay that can control the voltage and current. In applications, small high-power relays with small contact loads cannot be used to control large currents or high voltages.

The above content is about the answer to the 5v relay, I hope it will be helpful to everyone.