Vishay Intertechnology NTC Immersion Thermistor Delivers Fast 1.5 s Response Time for Liquid-Cooled Automotive Systems

Rhea-AI Summary

Vishay Intertechnology (NYSE:VSH) has unveiled its new AEC-Q200 qualified NTC immersion thermistor NTCAIMM66H, designed specifically for liquid-cooled automotive systems. The device features a miniature design with a 1.5-second response time to temperature changes and is housed in stainless steel 316L with lead-free brass construction.

The thermistor includes 0.35 mm² AWG#22 insulated lead wires with FLR2X construction, enabling direct crimping with automotive connectors and eliminating the need for wire-to-wire connectors. Key applications include HEV/EV on-board chargers, charging infrastructure, solar heating systems, and industrial tools. The device offers 10 kΩ resistance at +25°C and operates in temperatures from -40°C to +125°C.

Positive

• Fast 1.5-second response time for temperature monitoring
• Direct crimping capability eliminates need for costly wire-to-wire connectors
• Customizable features for specific application requirements
• AEC-Q200 qualification ensures automotive-grade reliability

Negative

• Extended lead times of 12 to 14 weeks for production quantities

Designed for Permanent Contact With Variety of Liquids, AEC-Q200 Qualified Device Eliminates the Need for Costly Wire to Wire Connectors

MALVERN, Pa., July 02, 2025 (GLOBE NEWSWIRE) -- Vishay Intertechnology, Inc. (NYSE: VSH) today introduced a new AEC-Q200 qualified NTC immersion thermistor. Featuring a miniature design with a compact sensor tip and thin insulated wire, the Vishay BCcomponents NTCAIMM66H is ideal for the small spaces of liquid-cooled automotive systems, where it provides a fast 1.5 s response time to temperature changes.

The rugged device released today consists of a miniature NTC thermistor mounted in a stainless steel 316L housing with lead (Pb)-free brass, and 0.35 mm² AWG#22 insulated lead wires with a FLR2X construction that enables a traction force higher than 30 N. These wires allow for direct crimping with automotive connectors — eliminating the need for costly wire to wire connectors — while the stainless-steel housing enables permanent contact with water or other liquids.

The NTCAIMM66H will be used for temperature measurement, sensing, and control in liquid-cooled automotive systems such as HEV/EV on-board chargers (OBC) and charging plugs and sockets, in addition to solar heating systems, energy storage systems, industrial drives and tools, and servers. The device can be customized with different cable and stripping lengths, gauges, and conductor plating to meet the need of specific applications, enabling Vishay customers to integrate the thermistor into their complete sensor solutions for HEV / EV thermal management systems (TMS).

The immersion sensor offers resistance at +25 °C (R₂₅) of 10 kΩ, with tolerance of ± 2 %, and beta (B_25/85) of 3984 K, with tolerance of ± 0.5 %. The device features maximum power dissipation of 100 mW and an operating temperature range of -40 °C to +125 °C.

Samples and production quantities of the NTCAIMM66H are available now, with lead times of 12 to 14 weeks.

Vishay manufactures one of the world’s largest portfolios of discrete semiconductors and passive electronic components that are essential to innovative designs in the automotive, industrial, computing, consumer, telecommunications, military, aerospace, and medical markets. Serving customers worldwide, Vishay is The DNA of tech.^® Vishay Intertechnology, Inc. is a Fortune 1000 Company listed on the NYSE (VSH). More on Vishay at www.Vishay.com.

The DNA of tech^® is a registered trademark of Vishay Intertechnology, Inc.

Vishay on Facebook: http://www.facebook.com/VishayIntertechnology
Vishay Twitter feed: http://twitter.com/vishayindust

Link to product photo: 
https://www.flickr.com/photos/vishay/albums/72177720327227662

Link to datasheet: 
http://www.vishay.com/ppg?29245 (NTCAIMM66H)

For more information please contact:
Vishay Intertechnology
Peter Henrici, +1 408 567-8400
peter.henrici@vishay.com
or
Redpines
Bob Decker, +1 415 409-0233
bob.decker@redpinesgroup.com

FAQ

What are the key features of Vishay's new NTCAIMM66H thermistor?

The NTCAIMM66H features a 1.5-second response time, stainless steel 316L housing, and 0.35 mm² AWG#22 insulated lead wires with direct crimping capability for automotive connectors.

What is the operating temperature range of the VSH NTCAIMM66H thermistor?

The thermistor operates in a temperature range of -40°C to +125°C with a resistance of 10 kΩ at +25°C.

Where can the Vishay NTCAIMM66H thermistor be used?

It's designed for liquid-cooled automotive systems, including HEV/EV on-board chargers, charging plugs and sockets, solar heating systems, energy storage systems, and industrial drives.

What is the current availability and lead time for VSH's NTCAIMM66H?

The device is available now for samples and production quantities, with lead times of 12 to 14 weeks.

What certifications does the Vishay thermistor have?

The thermistor is AEC-Q200 qualified, meeting automotive industry standards for electronic components.