Vishay Unveils SMD 1200V PTC Thermistors in Compact Size

Vishay Intertechnology releases SMD inrush current limiting PTC Thermistors that increases Board-Level Efficiency and Lower Costs.

Vishay Intertechnology, Inc. introduced a new series of insulated, surface-mount inrush current limiting positive temperature coefficient (PTC) thermistors.

Designed to increase board-level efficiency and lower costs in automotive and industrial applications, Vishay BCcomponents PTCES series devices combine maximum energy handling to 340 J with high maximum voltages of 1200 V_DC in a compact package.

Compared to competing devices, the PTC thermistors released today offer up to 260 % higher energy handling capabilities, allowing designers to utilize fewer components in their circuits to save board space and lower overall costs.

In addition, the PTCES series offers 20 % higher maximum voltages than competing devices to meet the requirements of a broader range of designs.

The thermistors provide current limitation and overload protection in AC/DC and DC/DC converters; DC-Link, energy dump, and emergency discharge circuits; on-board chargers (OBC) and battery charging equipment; and motor drives. For these applications, the self-protecting devices withstand > 100 000 inrush power cycles and are AEC-Q200 qualified for shock and vibration, eliminating the need for reinforced mounting adhesives.

The PTCES series barium titanate thermistors consist of a solder-connected homogenous ceramic PTC encapsulated in a UL 94 V-0 compliant, self-extinguishing, washable plastic housing with insulation up to 3 kV_AC. Offering a low profile of 9.6 mm, the RoHS-compliant, halogen-free devices can be automatically mounted by pick and place equipment to reduce placement costs.

Samples and production quantities of the PTCES series thermistors are available now, with lead times of 10 weeks.