General purpose DPDT relays with 12VDC coil for PC board mounting
Manufacturer: omron
# Introduction to the G2RL - 2 - DC12 Product Series
## 1. Overview
The G2RL - 2 - DC12 product series belongs to the realm of electromagnetic relays. These relays are crucial components in electrical and electronic circuits, serving as electrically - controlled switches. They are designed to handle a specific set of electrical parameters and are widely used in various industrial, commercial, and consumer applications. The "G2RL" is the model series identifier, "2" typically indicates the number of poles (in this case, a double - pole relay), and "DC12" specifies that the relay is designed to operate with a 12 - volt direct - current (DC) coil voltage.
## 2. Physical Characteristics
### Dimensions and Design
The G2RL - 2 - DC12 relays are engineered with a compact and space - efficient design. Their small form factor allows for easy integration into printed circuit boards (PCBs) and other electronic assemblies. The relays are typically housed in a durable plastic casing that provides protection against environmental factors such as dust, moisture, and mechanical shock. The casing is designed to meet industry - standard dimensions, ensuring compatibility with common PCB layouts and mounting configurations.
### Terminal Configuration
The relay features a well - defined terminal arrangement. There are terminals for the coil, which is energized by the 12V DC power supply, and terminals for the contacts. The double - pole design means there are two sets of contacts, which can be used to control two separate circuits simultaneously. The terminals are designed for easy soldering or connection using appropriate connectors, facilitating quick and reliable installation.
## 3. Electrical Specifications
### Coil Characteristics
- **Coil Voltage**: As indicated by the "DC12" in the model number, the relay is designed to operate with a nominal coil voltage of 12 volts DC. This makes it suitable for use in systems that have a 12V power source, such as automotive electronics, small - scale industrial control systems, and some consumer electronics.
- **Coil Resistance**: The coil has a specific resistance value, which determines the amount of current drawn when the coil is energized. This resistance is carefully calibrated to ensure efficient operation and to prevent overheating. The coil resistance value is typically provided in the product datasheet and is an important parameter for circuit design.
- **Pick - up and Drop - out Voltages**: The pick - up voltage is the minimum voltage required to energize the coil and close the contacts. The drop - out voltage is the maximum voltage at which the contacts will open when the coil voltage is reduced. For the G2RL - 2 - DC12, these values are precisely defined to ensure reliable switching operation within a specific voltage range.
### Contact Specifications
- **Contact Rating**: The relay contacts are rated for a specific current and voltage. This rating indicates the maximum electrical load that the contacts can safely handle. For example, the contacts may be rated for a certain number of amperes at a specific DC or AC voltage. The G2RL - 2 - DC12 contacts are designed to handle a range of loads, making them suitable for a variety of applications.
- **Contact Configuration**: The double - pole design offers flexibility in circuit design. The contacts can be configured as normally open (NO), normally closed (NC), or a combination of both. In a normally open configuration, the contacts are open when the coil is not energized and close when the coil is energized. In a normally closed configuration, the opposite is true.
- **Contact Resistance**: Low contact resistance is essential for efficient power transfer and reliable operation. The G2RL - 2 - DC12 relays are designed to have low contact resistance, which minimizes power losses and heat generation at the contacts.
## 4. Performance and Reliability
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