Vishay Intertechnology SMD Inrush Current Limiting PTC Thermistors Increase Board-Level Efficiency to Lower Costs

sponsoredPTC Thermistor Vishay Intertechnology SMD Inrush Current Limiting PTC Thermistors Increase Board-Level Efficiency to Lower Costs

2025-11-19 1 min Reading Time

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Vishay Intertechnology, Inc. has 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 VDC in a compact package.

Vishay PTCES Thermistor – compact, high-performance circuit protection.(Source: Vishay) — Vishay PTCES Thermistor – compact, high-performance circuit protection.
(Source: Vishay)

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 homogeneous ceramic PTC encapsulated in a UL 94 V-0 compliant, self-extinguishing, washable plastic housing with insulation up to 3 kVAC. 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.

Device Specification Table:

Series	PTCES
R₂₅ (W)	60 to 1000
R₂₅ tolerance (%)	30
Max. AC voltage (V_RMS)	350 to 800
Max. DC voltage (V_DC)	500 to 1200
Maximum energy (J) @ 25 °C	240, 340
Heat capacity (J/K)	2.4, 2.6
Operating temperature (°C)	-40 to +105

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

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