635nm 10mW Red Laser Diode QL63F5SC TO-18 5.6mm Single Mode for Laser Modules

Product Description

The QL63F5SC is a high-performance 635nm red laser diode manufactured by QSI, designed to deliver stable 10mW continuous wave (CW) visible red laser output in a compact TO-18 (5.6mm) package. Featuring single transverse (TM) mode operation, low operating voltage, and reliable optical performance, it is ideal for precision laser applications requiring a bright, stable red beam.

This 635nm 10mW laser diode is suitable for laser modules, laser pointers, laser levelers, alignment systems, measurement instruments, and a variety of industrial, scientific, and DIY optical projects. The integrated monitor photodiode supports APC (Automatic Power Control) laser driver circuits for stable output during continuous operation.

Features

✔ 635nm visible red laser wavelength

✔ Maximum optical output: 10mW

✔ Continuous Wave (CW) operation

✔ Single transverse / TM mode laser

✔ TO-18 (5.6mm) package

✔ Built-in monitor photodiode

✔ Stable optical performance

✔ Suitable for APC laser driver circuits

Specifications

These values are taken from the manufacturer's datasheet.

Applications

• Laser Modules
• Laser Pointers
• Laser Levelers
• Optical Instruments
• Alignment Systems
• Industrial Measurement
• DIY Laser Projects

Package Includes

• 1 × 635nm 10mW Red Laser Diode QL63F5SC TO-18 5.6mm

Important Notes

• This product is a laser diode component only and requires a constant-current laser diode driver.
• Proper heatsinking is recommended during operation.
• Electrostatic discharge (ESD) precautions should be observed during handling.
• Never look directly into the laser beam or point it toward people or reflective surfaces.

Downloads

📄 Official Manufacturer Datasheet (PDF)

Download the official datasheet for complete electrical, optical, and mechanical specifications.

Download Datasheet (PDF)