TO-37

The TO-37 header is a specialized, less common alternative to the TO-39 header, used in detector applications. The material of TO-37 header is usually Kovar or CRS coated with nickel and gold for base and pins. Ferrotec-RMT offers thermoelectric sub-assemblies on TO-37 header with 6 or 9 pins. Header version with 9 pins is standard and mostly requested. Other types available by request. Its 3.2 x 3.2 mm² mounting surface accommodates various single- and multi-stage TECs. Ferrotec-RMT may integrate any suitable TEC from more than 3000 standard types available.

6 pin TO-37

9 pin TO-37

Key features

• Hermetic Seal: Ensures long-term reliability in harsh environments.
• Durable Metal Construction (Kovar/CRS): Resistant to physical stress.
• Thermal Management: Larger size compared to TO-46 allows for better heat dissipation.
• Flexible Pinout: Power, signal, ground, plus optional TEC.
• Versatile: Supports various optoelectronic components.

Applications

• Laser Diodes, used in telecommunications, LiDAR, medical devices and industrial systems.
• Photodiodes, used in light detection systems, optical sensors and spectroscopy.
• High-intensity LEDs for illumination, signaling, and sensing.
• Thermoelectric Cooler Integration, used for devices requiring temperature control, such as cooled laser diodes or sensors.