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Pricelist: Retail Price (B2C) Pricelist
12mm 5mW Red Dot Laser Diode Module MXD1230 Adjustable Focus 3V-5V DC

12mm 5mW Red Dot Laser Diode Module MXD1230 Adjustable Focus 3V-5V DC

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FeatureDetails
Laser TypeRed Dot (Point)
Output Power5mW
Operating Voltage3.0V to 5.0V DC
Adjustable FocusYes (Threaded Brass Lens)
Current Consumption<40mA
Wavelength650nm
Price
₹ 180.00 ₹ 180.00
(Tax included)

Product Description The MXD1230 12mm Red Dot Laser Diode Module is a versatile, low-power industrial laser pointer designed for precision alignment, DIY electronics, and robotics projects. Encased in a durable brass housing that acts as a natural heat sink, this module operates within a wide 3V to 5V DC range, making it directly compatible with Arduino and other microcontrollers. Unlike fixed-focus modules, the MXD1230 features an adjustable plastic lens that allows you to sharpen the laser dot to a fine point over long distances. It is an ideal component for building laser security tripwires, optical tachometers, 3D scanners, and target pointing systems.

Key Features

  • Adjustable Focal Length: Features a threaded lens assembly that can be rotated to focus the red beam for maximum precision at varying distances.

  • Compact Industrial Build: The 12mm copper/brass shell provides excellent mechanical protection and efficient heat dissipation for the laser diode.

  • Direct MCU Logic Support: Low current consumption (under 40mA) allows the module to be powered directly from a digital pin on most microcontrollers.

  • Integrated Drive Circuit: Built-in constant power control ensures the laser intensity remains stable even as input voltage fluctuates within the 3V-5V range.

  • High-Visibility Wavelength: The 650nm red beam is highly visible to the human eye and most light sensors (LDRs), perfect for optical communication.

Technical Details

  • Diode Type: High-quality semiconductor laser diode with high-frequency stability and low beam divergence.

  • Lens System: High-transmittance plastic collimating lens designed for sharp dot projection.

  • Wiring Interface: Standard two-wire leads (Red for VCC, Black for GND) for easy integration into breadboards or PCBs.

  • Beam Spot Size: Adjustable from <1mm at short range to several centimeters at extreme distances.

  • Polarization: Linear polarization, useful for specific physics experiments and optical filtering.

  • Power Stability: Features an internal APC (Automatic Power Control) circuit to maintain a consistent 5mW output.

  • Safety Class: Rated as a Class IIIa/3R laser; safe for momentary exposure but should not be stared into directly.

  • Mounting Compatibility: Standard 12mm outer diameter fits perfectly into common laser mounting brackets or 3D-printed holders.

  • Response Time: Near-instantaneous light output, allowing for high-frequency pulse modulation in data transfer projects.

  • Logic Level Compatibility: Works flawlessly with 3.3V (ESP32/Raspberry Pi) and 5V (Arduino/AVR) logic systems.

  • Operating Environment: Designed for indoor and low-light outdoor environments; performance may vary in direct sunlight.

  • Internal Resistance: Optimized to prevent diode burnout while ensuring maximum brightness at 5V.

  • Continuous Operation: Can run continuously for several hours due to the brass casing's thermal mass.

  • Alignment Accuracy: Precision-centered diode ensures the beam exits the center of the housing.

  • Versatile Application: Used in leveling instruments, positioning devices, and DIY laser-guided robotics.

Prototyping and Engineering Tips from Robogears

  • 9V Battery Use: Do not connect 9V directly to this laser. It is rated for a maximum of 5.5V. If using a 9V battery, use a 7805 Voltage Regulator or a Buck Converter to step down to 5V.

  • 18650 Cell: A single 18650 cell (3.7V) is the perfect power source for this laser module. It provides a stable voltage that sits right in the middle of the laser's operating range without needing a regulator.

  • IC & Capacitor Tip: To create a long-range security tripwire, pair this laser with an LM393 Comparator IC and an LDR. Add a 100nF ceramic capacitor across the laser's power wires to filter out electrical noise if switching the laser rapidly via PWM.

  • Related Products: We recommend pairing this with our LDR (Light Dependent Resistors), Active Buzzers, and Laser Mounting Brackets for building advanced security systems.

Package Includes

  • 1 x 12mm 5mW Red Dot Laser Diode Module (MXD1230).

Disclaimer Image is for illustration purpose only 2-3 lines. LASER SAFETY: Never point the laser at eyes, faces, or reflective surfaces. Avoid direct eye exposure to the beam. This module is intended for use by adults or under strict supervision for educational and prototyping purposes.