850nm 2.3W IR Laser Diode TO-18 5.6mm Infrared Night Vision LD

850nm 2.3W Infrared Laser Diode – TO-18 5.6mm Package

Upgrade your night vision, sensing, or illumination projects with this high-quality 850nm infrared laser diode. Housed in a standard TO-18 5.6mm package, this 2.3W (2300mW) IR laser diode delivers powerful, stable output at an invisible 850nm wavelength — ideal for professional electronics builds, security camera illuminators, scientific research, and DIY optics experiments.

Key Specifications

• Wavelength: 850nm (±5nm)
• Output Power: 2.3W (2300mW)
• Package Type: TO-18, 5.6mm
• Threshold Current: 0.2A
• Operating Current: 2.5A – 3.6A
• Operating Voltage: 1.7V – 2.2V
• Dimensions: 10 × 6mm
• Quantity: 1 piece per package
• Condition: Brand new, high quality

Why Choose This IR Laser Diode?

• 🔦 Powerful 2300mW Output — delivers consistent, high-intensity infrared illumination for demanding applications
• 📐 Standard TO-18 5.6mm Package — universally compatible with common laser mounts, heatsinks, and driver boards
• 👁️ 850nm Wavelength — near-infrared, invisible to the naked eye, perfect for covert night vision and sensing setups
• ⚡ Wide Operating Current Range — flexible 2.5A–3.6A operating window for easy integration with various driver circuits
• 🔬 Precision Engineering — tightly controlled wavelength tolerance (±5nm) for reliable, repeatable results

Typical Applications

• Night vision camera illumination and security systems
• IR sensing and proximity detection
• Scientific optics and laser research
• DIY electronics and hobbyist laser builds
• Machine vision and industrial automation

Important Notes

Please allow 2%–3% dimensional variance due to manual measurement. The dimensions listed are for reference only. Screen color calibration may cause slight visual differences between product images and the actual item.

Made in Mainland China.

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Frequently Asked Questions

Q: What is the wavelength of this infrared laser diode, and is it visible to the human eye?

A: This laser diode operates at 850nm (±5nm), which falls in the near-infrared spectrum and is essentially invisible to the naked eye. It is ideal for covert night vision illumination, IR sensing, and applications where a visible beam is undesirable.

Q: What driver circuit or current controller do I need for this 850nm IR laser diode?

A: This diode requires a constant-current laser driver capable of supplying 2.5A–3.6A at 1.7V–2.2V. Always use a proper laser diode driver — never drive it directly from an unregulated power supply, as this can permanently damage the component. A heatsink is also strongly recommended for sustained operation.

Q: Is this laser diode compatible with standard TO-18 mounts and heatsinks?

A: Yes. The 5.6mm TO-18 package is an industry-standard format, making it broadly compatible with most commercially available laser mounts, collimating lens housings, and heatsink modules designed for this package size.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.