Vishay Releases High Accuracy AEC-Q200 Qualified NTC Leaded Thermistor

Vishay Intertechnology introduces a new AEC-Q200 qualified NTC thermistor with PEEK-insulated, NiFe leads and a low thermal gradient.

Designed to withstand high temperatures up to +185 °C, the Vishay BCcomponents NTCLE350E4 delivers fast, high accuracy temperature measurement and sensing in a wide range of automotive applications.

Features

• The NiFe alloy of the sensor’s conductor wire features the lowest thermal conductivity available on the market
• The device dissipates almost no heat to the surrounding environment, allowing for high accuracy temperature measurement
• Other conductive materials, such as copper, can deviate by several degrees
• High adhesive strength between the device’s PEEK-insulated lead wires and encapsulating epoxy lacquer
• Improve reliability in high humidity conditions
• In electric traction motors, the device can be processed by potting or molding into sensors for the protection of high current connectors

Benefits

• AEC-Q200 qualified
• High temperature operation up to +185 °C
• PEEK-insulated, nickel-iron (NiFe) leads
• Low thermal gradient of less than 0.01 K/K (or 1 %)
• Small maximum bead size diameter of 2.4 mm
• Fast response time of 6 s in air
• Resistance at +25°C (R25) from 2.1 kΩ to 30 kΩ, with tolerance down to 1 %
• Beta (B25/85) from 3435 K to 3984 K, with tolerance down to ± 0.5 %
• Maximum power dissipation of 100 mW
• Improved resistance to noxious gasses and acid
• RoHS-compliant

Applications

• Temperature measurement and sensing
• Engine coolant, fuel, and manifold air pressure (MAP / TMAP) sensors in combustion engines; electric traction motors; oil temperature sensors (OTS) in transmission systems and liquid-cool starter generator systems; exhaust gas recirculation (EGR) applications
• HVAC applications

The Key Specifications

• R25: 2.1 kΩ to 30 kΩ
• R25 tolerance:1 %, 2 %, 3 %, 5 %
• B25/85: 3435 K to 3984 K
• B25/85tolerance: ± 0.5 % to ±1 %
• Maximum power dissipation at 55 °C: 100 mW

Availability: Samples and production quantities of the NTCLE350E4 are available now, with lead times of 12 weeks.