Thermoelectric Cooling Solutions

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Thermoelectric sub-assemblies

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TO-822 is increased in size modification of TO-8 header. TO-822 header is good solution for applications where standard TO-8 header is not enough by area.
The material of TO-822 header is usually Kovar or CRS coated with nickel and gold for base and pins. RMT Ltd offers thermoelectric sub-assemblies on TO-822 header with 12 or 14 pins.  The header surface open for mounting is about 12.0×12.0 mm2, which is enough for a wide range of TECs. RMT Ltd offers different solutions with single-stage and multistage TECs   available. TO-822 is also good solution for typical pyramidal multistage TECs, especially three and four-stage types, where bottom (hot side) ceramics may be significantly larger then   top.

Sub-Assembly Overview

Standard Sub-Assemblies Solutions

This is a list of standard, most common solutions with thermoelectric coolers mounted on TO-822 headers with 12 and 14 pins. The complete list of possible solutions is wider. TO-822 header is suitable for any thermoelectric cooler with hot side dimensions up to 12.0×12.0 mm2. Please, contact RMT Ltd in case if specific solution on TO-822 is required.

Single-stage TECs
2-stage TECs
3-stage TECs
4-stage TECs

Exterior Type dTmax
1MC06-070-xx (n=70)
Click to enlarge. 1MC06-070-05 57 11.9 2.6 8.2 0.69 12.0 12.0 1.6 Datasheet
1MC06-070-08 63 8.9 1.8 1.9
1MC06-070-10 65 7.3 1.5 2.1
1MC06-070-12 66 6.6 1.3 2.3
1MC06-070-15 68 5.2 1.0 2.6

TEC performance parameters are specified at standard conditions (+27°C, vacuum). The datasheet for each sub-assembly contains also the additional data, specified at +50°C, N2. Please, download the datasheet for detailed info. The affect from TO-822 Kovar base thermal resistance (Rt) is included into specified performance values. TO-822 sub-assembly is required to be attached to an appropriate heatsink to spread the heat, pumped from LD (or another source) and thermoelectric cooler. Heatsink thermal resistance may affect on performance, and is required to be as low as possible. Heatsink thermal resistance influence is not included into specified performance data.

You may use TEC Select Assistant to find other thermoelectric coolers suitable for TO-822 header. Press the On-Line Assistant link and specify hot side dimensions as 12.0×12.0 mm2 as a main search criteria. The cooling capacity of TEC is recommended to be as at least 2 times higher than expected heat load in the application. For example, for 2W estimated heat load, please, specify TEC Qmax as at least 4W in the search field. The assistant will specify all thermoelectric coolers compatible for installing on TO-822 package. The datasheets for not listed TO-822 sub-assemblies are available by request.

Headers Available

It's a typical drawing of TO-822 header. The header dimensions may vary to a small extent, depending on the manufacturer.


Note: RMT Ltd provides the sub-assemblies - thermoelectric coolers, mounted on TO-822 headers. The company doesn’t manufacture the headers or provide headers separately. The mounting service is also available on Customer’s headers upon request.

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Information furnished by RMT Ltd is reliable. However no responsibility is assumed for possible inaccuracies or omission. Specifications are subject to change without notice.