850nm Infrared Laser Dot Module – 5mW/10mW, Ø5×14mm, Fixed Focus, 2.8–5.2V DC

Product Overview

The 850nm Infrared Laser Dot Module is an ultra-compact, fixed-focus laser module designed for infrared positioning, optical sensing, equipment integration, and OEM applications.

Measuring just 5mm in diameter and 14mm in length, this miniature infrared laser module is ideal for applications where installation space is limited.

Available in 5mW and 10mW output versions, the module features an integrated APC (Automatic Power Control) circuit and operates from a 2.8–5.2V DC power supply.

Choose between a natural brass housing or a black anodized aluminum housing to suit your installation requirements.

Key Features

• 850nm Infrared Wavelength: Suitable for compatible infrared sensing, optical testing, and alignment applications.

• 5mW / 10mW Options: Two nominal power versions to meet different application requirements.

• Ultra-Compact Design: Miniature Ø5 × 14mm cylindrical housing.

• Fixed-Focus Laser Dot: Factory-set focus for a projected infrared dot.

• APC Circuit: Integrated automatic power control for improved output stability.

• Wide DC Input Range: Operates from 2.8V to 5.2V DC.

• Two Housing Options: Natural brass or black anodized aluminum.

• Pre-Wired Connection: Approximately 150mm red and black power leads.

• OEM Customization: Custom cable lengths, connectors, and focus settings may be available on request.

Available Options

Output Power

5mW Version

• Nominal power option: 5mW

• Supplier-specified output: Less than 5mW

• Operating current: Less than 30mA

• Suitable for compatible lower-power infrared applications

10mW Version

• Nominal power option: 10mW

• Supplier-specified output: Less than 10mW

• Operating current: Less than 40mA

• Suitable for compatible applications requiring higher infrared output

Housing Material

Black Aluminum Housing

• Aviation aluminum construction

• Black anodized surface finish

• Electrically insulating surface treatment

Natural Brass Housing

• Brass construction

• Natural metallic gold-colored finish

• Compact and durable cylindrical design

Both versions have the same nominal external dimensions.

Technical Specifications

Specifications are based on supplier-provided information. Actual optical performance and lifetime depend on operating conditions and integration.

Fixed-Focus Infrared Dot

The laser features a factory-set fixed-focus optical assembly designed to produce a projected infrared spot.

The projected spot may appear elliptical, and its size depends on the working distance.

Important: The focus is not user-adjustable. If a specific spot size or working distance is required, please contact us before ordering to discuss customized factory focusing.

The supplier specifies a nominal indoor projection range of less than 200 meters under suitable detection conditions. Actual detectable distance varies with the target, infrared detector sensitivity, alignment, and environmental light.

Applications

Infrared Optical Sensing

Suitable for integration with compatible infrared cameras, optical detectors, and sensing systems that support the 850nm wavelength.

Compact Equipment Integration

Its miniature size makes it suitable for space-constrained equipment, custom electronic assemblies, and OEM systems.

Laboratory and Optical Experiments

Can be used as an infrared light source for controlled optical demonstrations, component testing, and compatible laboratory setups.

Machine Positioning and Alignment

May serve as an infrared reference point in alignment systems equipped with suitable IR-sensitive detection equipment.

Research and Development

Suitable for engineering prototypes, optical research, and other compatible non-medical development applications.

Electrical Connection and Installation

The standard module includes approximately 150mm of red and black connecting wires.

• Red Wire (+): Positive DC power

• Black Wire (-): Negative / Ground

• Input Voltage: 2.8–5.2V DC

Installation Notes:

1. Use a regulated DC power supply within the specified voltage range.

2. Confirm wire polarity before applying power.

3. Never connect the module directly to an AC power source.

4. Avoid exceeding the maximum input voltage.

5. Provide adequate mounting and heat management for the application.

6. Use an appropriate infrared detector when checking output or alignment.

OEM and Customization Options

For equipment manufacturers and engineering projects, the supplier may offer customized configurations, including:

• Custom cable lengths

• Alternative connector types

• DC female connector

• Insulated wiring

• Pre-installed connector leads

• Factory-adjusted focal distance

• Custom module dimensions (subject to feasibility)

Please contact Lilly Electronics with your requirements before ordering customized products.

Laser Safety Information

Warning: Invisible Infrared Laser Radiation

850nm infrared laser radiation is largely invisible to the human eye. The absence of a visible beam does not mean the laser is safe.

• Never look directly into the laser aperture or beam.

• Never use the naked eye to check whether the laser is operating.

• Avoid direct exposure and specular reflections.

• Use appropriate laser safety eyewear rated for 850nm and the expected exposure conditions.

• Operate only in a controlled environment with suitable beam containment.

• Keep away from children and unauthorized users.

• Do not direct the laser toward people, vehicles, or aircraft.

Laser classification depends on the actual accessible emission and finished-product configuration. Appropriate safety precautions are required for both power options.

Package Contents

• 1 × 850nm Infrared Laser Dot Module (selected power and housing)

• Approx. 150mm Red/Black Power Wires (pre-attached)

Note: Power supply, mounting hardware, and external connectors are not included unless explicitly specified.

Ordering Information

Please select your preferred:

Housing: Black Aluminum / Natural Brass

Output Power: 5mW / 10mW

For bulk orders, OEM customization, or technical support, please contact Lilly Electronics.