5mW Red Laser Module 3V 5V with Point Focus for Electronics

Name: 5mW Red Laser Module 3V 5V with Point Focus for Electronics
Brand: satkit
SKU: Y020205-laser-punto-5mw
Price: 4.92 EUR
Availability: InStock

Brand: satkit

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4.92€

VAT included (Ex VAT: 4.00 €)

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Quantity	Price	Save
2+	4.72 €	-4%
10+	4.48 €	-9%
20+	3.94 €	-20%

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Product description:

The 5mW red laser module 3V 5V with point focus is a compact device designed to provide a precise red dot output with a wavelength of 650 nm. This module is ideal for electronic applications, measurement projects and soldering accessories that require a low-voltage, high-precision laser.

Main features:

Model: LD-G650A03
Output: red dot with wavelength of 650 nm
Compact size: F12.0x35 mm
Cable length: approximately 135 mm
Lightweight: 13,5 grams
Body made of nickel-plated brass for greater durability
Operating voltage: 3.0 V to 5 V
Maximum current: 40 mA

Typical uses:

Electronic projects requiring precise laser signalling
Accessories for soldering stations and electronic tools
Measurements and calibrations in electronics and optics
Applications that require a low-power, low-voltage red laser

Compatibility: Compatible with systems and devices operating between 3 and 5 volts, ideal for integration into electronic circuits and soldering equipment.

Safety precautions:

This module emits a laser that can be harmful to the eyes. It should not be exposed directly to the eyes or pointed at other people. Special protective glasses are recommended during exposure to laser light.

650nm red dot output for precision in electronic applications
Operating voltage from 3V to 5V, compatible with multiple devices
Nickel-plated brass body for added strength and durability
Compact 12x35 mm size and lightweight 13,5 grams
Maximum current of 40 mA for energy efficiency
Cable length of approximately 135 mm for easy connection

Customer Questions & Answers

What materials make up the laser module and how do they affect its durability and heat dissipation?

The module is built with a nickel-plated brass body, which provides good corrosion resistance and improves heat dissipation. This helps maintain suitable thermal stability for intermittent use and extends service life, although continuous operation for more than 2 minutes without pauses is not recommended to avoid overheating.

What electrical supply range does the module accept, and what are the implications for integration into electronic projects?

The laser operates with an input voltage of 3.0 V to 5.0 V DC and a maximum current of 40 mA. It can be easily integrated into Arduino boards, Raspberry Pi and standard regulated supplies, provided the current limit is respected. Reversing polarity can damage the module; it does not have reverse polarity protection.

How accurate is the projected laser dot and what shape does it take at different distances?

The wavelength is 650 nm (visible red) and the optics are designed for a focused dot. At 5 m, the dot diameter is usually less than 5 mm if the focus is correctly adjusted. The focal distance can be adjusted slightly by turning the front lens.

What are the main technical differences compared with similar 10 mW or higher-power laser modules?

Compared with 10 mW modules, this model offers greater safety and the same electrical compatibility, but lower visibility in very bright environments and a shorter effective range (around 5 m with good visibility). For basic alignment or marking applications, it is sufficient and preferable due to the lower eye risk.

What is the operating voltage of the laser module?

The red laser module operates at a voltage between 3.0V and 5V.

What wavelength does the laser have?

The laser emits a red dot with a wavelength of 650 nm.

Is this laser module safe to use?

The laser can be harmful to the eyes, so it should not be exposed directly to them or pointed at other people. Special protective glasses are recommended.

What is the size and weight of the module?

The module measures approximately 12x35 mm and weighs 13,5 grams.