SRD-3VDC-SL-C Relay 3V DC Coil, 10A, SPDT, 220VAC, 5 Pin

SRD-3VDC-SL-C Relay 3V DC Coil, 10A, SPDT, 220VAC, 5 Pin

Product Overview

The SRD-03VDC-SL-C from Pro Tronix is specifically engineered for the modern era of low-voltage microcontrollers. While standard 5V relays may struggle to trigger reliably from 3.3V power rails, this 3V DC Coil version is optimized for maximum sensitivity.

It is the perfect choice for IoT developers working with ESP8266, ESP32, and Raspberry Pi, as it allows for direct integration with 3.3V power systems without needing complex step-up converters for the relay coil. Despite its low trigger voltage, it maintains a heavy-duty switching capacity of 10A, allowing you to control household AC appliances or DC motors with ease.

Technical Specifications

Key Features

• 3.3V Logic Friendly: Designed to work seamlessly with modern low-power microcontrollers and battery-operated IoT nodes.

• Low Power Consumption: The 3V coil requires minimal energy to energize, extending battery life in portable applications.

• Standard Footprint: Features the same compact “Sugar Cube” dimensions as the 5V and 12V versions for easy PCB replacement.

• Versatile Switching: Includes both Normally Open (NO) and Normally Closed (NC) contacts to suit any circuit logic.

Common Applications

• ESP32 & IoT Projects: Controlling high-power devices via Wi-Fi or Bluetooth where the system runs on 3.3V.

• Battery-Powered Devices: Ideal for projects powered by two AA batteries or a single Li-ion cell.

• Portable Robotics: Switching motors or actuators in compact, mobile robotic platforms.

• Smart Sensors: Acting as an interface for battery-operated leak detectors, motion sensors, or smart thermostats.

You can see the rest of our available relays from here: Relay | Pro Tronix