G5Q-1A4-EL2-HA DC5
Overview
The G5Q-1A4-EL2-HA DC5 is a high-capacity subminiature PCB power relay designed to handle significant inrush currents up to 40 A. This SPST-NO (1 Form A) relay operates on a 5V DC coil and is engineered for high-frequency switching and durability in power-sensitive circuits. It is particularly effective for controlling capacitive and inductive loads that experience large initial current spikes.
Why Choose This Part
This relay offers a compact footprint while maintaining a high inrush switching capacity of 40 A, reducing the need for larger, more expensive contactors. The EL2-HA variant is specifically designed for enhanced reliability under heavy loads and is rated for high-temperature environments up to 85 degrees Celsius.
Applications
Getting Started
When integrating this relay, ensure the PCB traces are sized to handle the 40 A peak inrush current and the continuous load rating. Use a flyback diode (such as a 1N4007) across the 5V DC coil to protect the driving transistor or MCU from inductive kickback. Verification of the 3.75V minimum pick-up voltage is recommended to ensure reliable switching if the 5V rail experiences voltage drops.
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