NTC thermistor is designed for automotive and industrial design, says Vishay

An AEC-Q200-qualified epoxy-coated NTC thermistor with long PEEK-insulated, nickel-iron (NiFe) leads has a low thermal gradient for fast, high accuracy temperature measurement, sensing and control in automotive and industrial applications, says Vishay Intertechnology.

The NiFe alloy of the Vishay BCcomponents’ NTCLE317E4103SBA sensor’s conductor wire is claimed to have the lowest thermal conductivity available today. The thermal decoupling enables temperature measurement accuracy to ± 0.5 degrees C; other conductive wire materials, such as copper, can deviate by several degrees, points out Vishay.

To improve reliability in high humidity conditions, the NTCLE317E4103SBA provides high adhesive strength between its PEEK-insulated lead wires and encapsulating epoxy lacquer. The thermistor features a small maximum bead size diameter of 1.6mm, resulting in a fast response time of less than three seconds in air. Its 75mm, flexible radial leads allow for special mounting or assembly requirements.

The device’s accuracy and fast speed make it suitable for ideal for battery management systems (BMS) for battery packs, charge circuits, DC fan motors, seat heating and HVAC sensors in cars, as well as boilers, fire and smoke detectors, and printer heads.

The RoHS-compliant sensor offers resistance at +25 degrees C (R25) of 10 kOhm, with curve tracking between 25 and 85 degrees C, and beta (B25/85) of 3984K, with tolerance of ± 0.5 per cent.

The NTCLE317E4103SBA features maximum power dissipation of 50mW and operates over a wide temperature range of -55 to +150 degrees C.

Samples and production quantities of the NTCLE317E4103SBA are available now, with lead times of six weeks.

Vishay manufactures one of the world’s largest portfolios of discrete semiconductors and passive electronic components for automotive, industrial, computing, consumer, telecommunications, military, aerospace and medical markets.


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