Vishay Intertechnology Launches High-Energy PTC Thermistors for Automotive and Industrial Applications
Vishay Intertechnology: These thermistors are AEC-Q200 qualified, ensuring durability and self-protection in applicationsww
Vishay Intertechnology, Inc. has introduced the PTCEL High Energy series, a new line of inrush current limiting positive temperature coefficient (PTC) thermistors. These thermistors are designed to enhance performance in active charge and discharge circuits for automotive and industrial applications by delivering exceptional energy handling, reliability, and voltage capabilities. The PTCEL High Energy series supports up to 340 J of energy handling at 25 °C—five times higher than other devices at elevated temperatures—offering enhanced protection and efficiency in high-performance environments.
Broad Resistance Range and High Voltage Performance
The newly launched thermistors feature R25 resistance values ranging from 150 Ω to 1.5 kΩ, paired with high maximum voltage ratings of up to 1200 VDC. They are engineered to operate efficiently at elevated temperatures, handling 180 J at 85 °C and 130 J at 105 °C. Their superior energy handling allows circuit designers to reduce the number of components required, saving space and lowering costs. With an operational range up to +105 °C and a heat capacity of 2.6 J/K across all resistance values, the PTCEL High Energy series offers reliable high-temperature performance.
AEC-Q200 Qualified for Versatile Applications
These thermistors are AEC-Q200 qualified, ensuring durability and self-protection in applications where current limiting and overload protection are essential. Their reliability makes them ideal for AC/DC and DC/DC converters, DC-Link, battery management, emergency discharge circuits, on-board chargers, home energy storage, heat pumps, motor drives, and welding equipment. Withstanding over 100,000 inrush cycles and resilient against peak non-switching power up to 25 kW, the PTCEL High Energy series is built to support long-term, high-stress applications.
Robust Design and Flexible Packaging Options
Built with barium titanate, these thermistors consist of a ceramic pellet enclosed between two tinned CCS wires and coated with UL 94 V-0 compliant high-temperature silicone lacquer. The devices are RoHS-compliant and compatible with automated handling equipment, thanks to their availability in tape-on-reel packaging. Vishay offers options for leadwire pitch in 5.0 mm, 7.5 mm, and 10 mm configurations, allowing flexibility in design integration. SPICE and 3D models are also available for efficient design simulations.
PTCEL High Energy Series Specifications
| Part Number | R25 (Ω) | R25 Tolerance (%) | Max AC Voltage (VRMS) | Max DC Voltage (VDC) | Max Energy (J) @ 25 °C | Heat Capacity (J/K) | Lead Pitch (mm) |
|---|---|---|---|---|---|---|---|
| PTCEL67R | 150 to 1500 | 30 | 460 to 800 | 650 to 1200 | 340 | 2.6 | 5.0, 7.5, 10.0 |
Availability
Samples and production quantities of Vishay’s PTCEL High Energy series thermistors are available with a lead time of 10 weeks, providing designers with access to high-performance components for demanding applications.
