TO-37

The TO-37 header serves as a specialized alternative to the TO-39 header in detector applications. These headers are typically made with a Kovar or CRS base and pins, finished with nickel and gold plating. KIMT offers thermoelectric sub-assemblies using the TO-37 header, available with either 6 or 9 pins. The 9-pin version is standard and most common; other types are available by request. The header’s 3.2×3.2 mm mounting area is compatible with various single and multi-stage thermoelectric coolers (TECs). We can also integrate any suitable TEC from the standard models available within our catalogue.

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.