TO-3

TO-3 header with 8 pins is widely used in powerful laser diode applications, such as DFB and DBR lasers. Attached to a proper heatsink TO-3 header is suitable to spread several watts of heat. The mounting surface is typically 8x8 mm², which is enough to provide a wide range of thermoelectric coolers to install. TO-3 header is also suitable for photodetector applications, because of good thermal conductivity and simple mounting.

The material for base and pins of the header is usually CRS. Ferrotec-RMT offers thermoelectric sub-assemblies (TEC + header) on universal 8 pin TO-3 type with nail shape pins. The available standard solutions for laser applications allow to pump up to 10 W of heat from LD.

Key features

• Large Size: Ample space for high-power components and enhanced thermal management.
• Hermetic Metal Seal (Kovar/CRS): Protects internal components from environmental contaminants.
• Efficient Heat Dissipation: Ideal for high-power devices.
• High-Power Capability: Suitable for high-power lasers and LEDs.
• Long-Term Reliability: Robust design ensures stable performance in harsh environments.
• Multiple Electrical Pins: For power, signal and potential control functions.
• Optional Optical Window (Glass/Ceramic): Enables optical signal transmission.

Applications

• High-power laser diodes, used in telecommunications (long-haul optical networks), industrial (material processing), and medical (laser therapy, diagnostics) applications.
• Large-area photodiodes, used in applications like optical sensors, spectrometers and light detection systems.
• High-power LEDs, used in industrial lighting, medical equipment and high-intensity light sources.
• Thermoelectric Coolers (TECs)