Miniature relay RM51-3011-85-1005 electromagnetic for printed circuit board (sugar cube relays), height 17.1mm 2614696

Miniature PCB relay – reliability in a compact size

This electromagnetic relay, also known as a "sugar cube relay", is the ideal solution for applications requiring reliable circuit switching in a limited space. Its miniature dimensions (19.5 x 16.0 x 17.1 mm) and PCB mounting design make it perfect for projects integrated with printed circuit boards. The RM51-3011-85-1005 relay features a single switching contact (1P), providing flexibility in circuit configuration.

Specification and application

The relay is designed to operate at a coil voltage of 5 V DC and offers a wide range of load capacities. It can handle currents up to 10 A at 250 V AC and 20 A at 125 V AC. For inductive loads, such as motors, it can switch up to 750 W at AC3 voltage. For DC circuits, the rated current is 10 A at 30 V DC. Contacts made of AgSnO2 ensure good conductivity and wear resistance.

The application of this relay includes a wide range of devices and systems, such as:

• Home and industrial automation
• Control devices
• Switched-mode power supplies
• Telecommunications equipment
• Consumer electronics

Design and additional parameters

The housing with dimensions of 19.5 x 16.0 x 17.1 mm provides high protection against external environmental influences – the IP64 protection class guarantees resistance to dust and splashes. The AgSnO2 contact material ensures good electrical conductivity and durability. The relay is designed for direct mounting on a printed circuit board (PCB), which facilitates integration with other components. The coil resistance is 69 Ω, and the coil power consumption is 360 mW. The relay operates in a temperature range from -40°C to +85°C. The use of PCB connections in the relay facilitates mounting and dismounting of the device without the need for soldering wires.