TO-46

TO-46 is a very miniature TO-style package with limited area for mounting and high thermal resistance of sub-mount base. It is suitable for VCSEL, sensors and other miniature electronic components. The material of TO-46 header is usually Kovar coated with nickel and gold for base and pins. Ferrotec-RMT offers thermoelectric sub-assemblies on TO-46 header with 5 or 6 pins. The mounting surface area is typically 1.2 x 1.9 mm², sufficient for miniature TECs. Ferrotec-RMT offers solutions with miniature single-stage TECs.

5 pin TO-46 (with ground pin)

6 pin TO-46 (with ground pin)

Key features

• Ultra-compact: Ideal for space-constrained applications.
• Hermetic Seal: Glass/ceramic header protects against environmental factors.
• Thermal Management: Enables efficient heat dissipation for component longevity.
• Electrical Connections: Three or more pins (anode, cathode, optional control).

Applications:

• Laser diodes in fiber optic communication, laser pointers, barcode scanners and medical devices.
• Photodiodes in light detection and optical sensing of spectroscopy, LIDAR and environmental monitoring.
• High-performance LEDs in illumination, signaling and optical coupling.
• Telecommunications and data communications.
• Sensing and measurement in industrial automation, biomedical instruments and environmental sensors.