G8ND-27UR Dual H-Bridge Automotive PCB Relay for Door Lock, Window, and Sunroof Motor Control
The G8ND-27UR is a compact, high-performance dual H-bridge automotive PCB relay specifically designed for the normal and reverse rotation control of DC motors in modern vehicles . This 8-terminal dual relay features separated coil and contact terminals, simplifying PCB layout and enhancing design flexibility for automotive body control modules .
Despite its small footprint, the G8ND-27UR delivers exceptional power switching capabilities. Its advanced power contact and heat-release design enable high-current switching, making it ideal for demanding automotive applications such as door lock actuators, power window motors, and sunroof control systems . The device is rated for a DC12V motor load of 25A with a 30A inrush current capacity and supports an allowable carrying current of 25A at DC14V for up to 10 minutes .
The G8ND-27UR variant offers ultra-low operating voltage characteristics. With a coil resistance of 130Ω and a pull-in voltage of less than 5.5V, this relay provides reliable operation even in voltage-sensitive environments . The dropout voltage is greater than 1.0V, ensuring stable switching performance while minimizing unintended re-engagement . Nominal power consumption is rated at 1108mW .
For robust system integration, the relay features flux protection with an open vent hole design, and the "R" suffix indicates compatibility with Pin-in-Paste (reflow soldering) processes, facilitating automated PCB assembly . The device provides a contact resistance of 50mΩ or less, with operating and release times of 10ms and 5ms maximum respectively .
Durability is a key advantage of the G8ND-27UR. It offers mechanical endurance of 1,000,000 operations and electrical endurance of 100,000 cycles under rated load . The relay operates reliably across a -40°C to +85°C ambient temperature range and 35% to 85% relative humidity .
The compact package measures just 14.5mm x 14.0mm x 14.1mm maximum and weighs approximately 7.5g, making it suitable for space-constrained automotive door module designs . Each unit is supplied in stick packaging with a minimum order quantity of 1,200 pieces .