Automotive Air Conditioning Compressor Terminals

Product Description

Enabling superior performance and reliability of e-compressors

SCHOTT is a leading supplier of high-reliability, high-performance e-Compressor Terminals and offers the most efficient and advanced product range in the market, supporting both current and future industry requirements. We work with electric compressor manufacturers and automotive OEMs worldwide, and take pride in our partnership-focused customer approach that enables success in each step of the process – from R&D all the way to high-volume mass production. Based on many years of compressor and automotive sector experience, SCHOTT can offer fully performance-optimized standard products as well as custom-made automotive air conditioning compressor terminals that fulfill even the most challenging requirements.


High voltage, high current, and high pressure performance

EP Icon 1
Using glass, rubber, and ceramic as insulation materials enables optimal electric insulation – even under severe environmental conditions. SCHOTT’s unique rubber insulation design provides the dual benefit of further enhancing the product’s electrical insulation properties while also preventing harmful condensation. SCHOTT offers e-Compressor Terminal designs that can support various refrigerants, including R134a, R1234y, and R744 (CO2) – which require high pressure resistance.
  • High voltage capability: 800 V (required for quick charging technology)
  • High current capability: 30 A ~ 150 A (required for 48V technology)
  • High pressure resistance: 20 MPa (required for CO2 refrigerants)

Superior reliability

EP Icon 2
SCHOTT’s Automotive Compressor Terminals utilize hermetic compression glass-to-metal sealing, a technology that has been tested and proven for decades in air conditioning compressors, the automotive industry, and other harsh-environment applications. Thanks to the use of top-quality materials and a fully hermetic design with extremely high manufacturing accuracy,components from SCHOTT can reliably prevent refrigerant leakage, thereby protecting electronic components under the extreme conditions of high temperatures and vibrations.


Learn more about why compressor terminals are so important for automotive air conditioning systems in our video:
• Air conditioning systems for:
          Electric Vehicles (EV)
          Hybrid Electric Vehicles (HEV)
          Plug-in Hybrid Vehicles (PHEV) 
          Fuel Cell Vehicles (FCV)
          Electrically powered trucks and buses
• High-speed rail

• Server rooms



What is an e-compressor?

Electric compressors, or e-compressors, are widely used in environmentally friendly vehicles to support the operation of the air conditioning system for optimal passenger comfort. Electric and hybrid electric vehicles are equipped with battery-powered compressors – unlike diesel or petrol-powered counterparts with an internal combustion engine that use belt-driven compressors. To work reliably and efficiently, these electric compressors must be hermetically sealed and function with their own motor inside. 

Why is the quality of e-Compressor Terminals so important?

E-Compressor Terminals are important components of electric compressors, and must be designed and manufactured carefully for optimal performance. An e-Compressor Terminal enables the transfer of large amounts of energy from the battery to the air conditioning compressor, and at the same time must remain reliably gas-tight to prevent refrigerant leakage. This is not an easy task, as electric compressors have very high performance and durability requirements while also being subjected to harsh environmental conditions. These include high pressure, high humidity and vibration. Compressor terminals must be able to withstand such adverse conditions without issue. Highly controlled and precise processes are necessary to provide long-term reliable gas-tightness.Moreover, the compressor terminals must deliver extremely high insulation resistance and high voltage capabilities to support future quick-charging technology developments. High current capabilities are also essential to enable upcoming 48V electrical systems.

Technical Details


SCHOTT e-Compressor Terminals deliver excellent reliability thanks to hermetic glass-to-metal sealing technology. For more information about our glass-to-metal sealing technology, please visit this page.
Pin Fe-Cr, Copper cored Fe-Cr, Cu
Eyelet Fe
Glass Soda barium
Insulation Material Glass, Rubber, Ceramic
Insulation Resistance 1000 MΩ min. at DC 500 V
Pressure Resistance (air) 3.5 MPa min.
*SCHOTT offers terminal designs that meet exact customer specifications. For more details, please contact us.

Forms of Supply and Product Packaging

Standard forms of supply are available. Please contact our sales department if you have questions or special requests concerning supply and packaging.


All of our automotove AC compressor seals are manufactured in our ISO 9001/14001 certified plant, the quality assurance standard of ISO. For more information, please click here.
Trade Fairs & Events
Trade fair CIOE - China International Optoelectronic Exposition, Shenzhen, China, 01.09 - 03.09.2021
Trade fair Gastech, Singapore, Singapore, 13.09 - 16.09.2021
Trade fair IDS Internationale Dental-Schau, Köln, Germany, 22.09 - 25.09.2021
Trade fair SPIE Photonics West, San Francisco, USA, 25.01 - 27.01.2022
Christoph-Dorner-Strasse 29
84028 Landshut
E-Mail to SCHOTT+49 (0)871/826-0