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    1-Channel Relay Module - 12V (High and Low Level Trigger) Robotics Bangladesh
    • 1-Channel Relay Module - 12V (High and Low Level Trigger) Robotics Bangladesh

    1-Channel Relay Module - 12V (High and Low Level Trigger)

    RBD-3445

    • 1-Channel 12V Relay Module for switching high-voltage loads
    • Selectable High or Low level trigger via onboard jumper
    • Supports up to 10A at 250VAC / 30VDC load capacity
    • Compatible with 3.3V and 5V logic systems
    • Screw terminal block for secure load connection
    • Built-in freewheeling diode and LED status indicator
    BDT 135
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    Quantity
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    45 Items

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    45 items in stock
    Description

    The 1-Channel Relay Module – 12V (High and Low Level Trigger) is a reliable switching interface that allows low-voltage microcontrollers to control high-voltage and high-current devices safely. Designed for automation, robotics, and smart home systems, this module operates with a 12V DC supply to energize the relay coil while supporting 3.3V and 5V logic signals through selectable trigger modes.

    Using the onboard jumper, you can easily configure the relay for HIGH-level or LOW-level triggering. Therefore, it offers flexible compatibility with Arduino, STM32, ESP32, Raspberry Pi, and other development boards. The module includes a screw terminal block for convenient wiring and an LED indicator that shows relay activation status.

    Additionally, the built-in freewheeling diode protects the circuit from voltage spikes when switching inductive loads such as motors or solenoids. With a maximum load rating of 10A at 250VAC or 30VDC, this relay module is suitable for controlling lights, appliances, pumps, and industrial equipment. Featured By RoboticsBD.

    Product Images are shown for illustrative purposes only and may differ from the actual product.

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    Features:

    1. Selectable Trigger Mode – Switch between HIGH and LOW trigger levels using the jumper.

    2. 12V Relay Operation – Designed for stable 12V DC coil activation.

    3. High Load Capacity (10A) – Controls AC or DC loads efficiently.

    4. Logic-Level Compatible – Works with 3.3V and 5V control signals.

    5. LED Status Indicator – Provides visual confirmation when relay is active.

    6. Built-in Protection Diode – Suppresses voltage spikes from inductive loads.

    7. Screw Terminal Block – Secure and easy connection for external circuits.

    8. Mounting Holes – Simple installation in enclosures or panels.

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    Applications:

    1. Smart Home Automation – Control lights, fans, and appliances remotely.

    2. Motor Control Systems – Switch motors and pumps safely.

    3. Industrial Automation – Interface microcontrollers with high-voltage equipment.

    4. Robotics & IoT Projects – Manage power circuits in embedded systems.

    5. Security & Alarm Systems – Trigger sirens and safety devices.

    6. Remote Switching Applications – Isolate and control AC/DC loads securely.

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    General Specifications
    Module Type1-Channel Relay Module
    Operating Voltage12V DC
    Working Current190mA
    Trigger Current3mA – 5mA
    Trigger ModeSelectable High / Low
    Low-Level Trigger Voltage0V – 1.5V
    High-Level Trigger Voltage3V – 5V
    Load Capacity10A at 250VAC / 30VDC
    Terminal TypeScrew Terminal Block
    ProtectionBuilt-in Freewheeling Diode
    IndicatorLED Relay Status
    MountingPre-drilled Holes
    Dimensions50mm × 26mm × 18.5mm
    Shipment Weight0.016 kg
    Shipment Dimensions5 × 3 × 3 cm

    Please allow 5% measuring deviation due to manual measurement.

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    Documentation:

    Package Includes:

    1 x 1-Channel Relay Module - 12V (High and Low Level Trigger)

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    Product Details
    RBD-3445
    45 Items

    Specific References

    EAN13
    3445
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    BDT 710
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    8 Channel 12V Relay Module USB (PC Intelligent) Control Switch Robotics Bangladesh 8 Channel 12V Relay Module USB (PC Intelligent) Control Switch Robotics Bangladesh

    Reference: RBD-1910

    8 Channel 12V Relay Module USB (PC Intelligent) Control Switch

    (0)
    Square onboard USB interface for connection stability The use of imported high-performance USB controller chip Use the special relay driver chip ULN2803, relay work more stable Military grade PCB board production Input voltage: DC 12 V Input Current: more than 300mA Connection : NC / COM / NO Note: Relay might be different from the picture as per stock
    BDT 1,950
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    8 Channel 5V Relay Module Robotics Bangladesh

    Reference: RBD-1948

    8 Channel 5V Relay Module

    (0)
    Channel: 8 channel Relay Operating Voltage: 5V One normally closed contact and one normally open contact Triode drive, increasing relay coil High impedance controller pin Pull-down circuit for the avoidance of malfunction Power supply indicator and Control indicator lamp Power supply and relay instructions, lit, the disconnect is offNote: Relay might be...
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    ESP8266 Dual WiFi Relay Module Internet Of Things Smart Home Mobile APP Remote Switch Robotics Bangladesh ESP8266 Dual WiFi Relay Module Internet Of Things Smart Home Mobile APP Remote Switch Robotics Bangladesh

    Reference: RBD-1337

    ESP8266 Dual WiFi Relay Module Internet Of Things Smart Home Mobile APP Remote Switch

    (0)
    Transmission Distance(m) :400 Relay Channel:2 Trigger Voltage (VDC): 5 Switching Voltage (VAC):250@10A Switching Voltage (VDC):30@10A Baud Rate:9600 Note: Relay might be different from the picture as per stock
    BDT 835
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    SSR-40DA Solid State Relay Module Robotics Bangladesh

    Reference: RBD-1597

    SSR-40DA Solid State Relay Module

    (0)
    Long Service life and high Reliability Reduced Electromagnetic Interference Highly reliable, compact size designed to offer users maximum simplicity Trigger Voltage: 3-32VDC Switching Voltage: 24-380VAC@40A
    BDT 849
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