Vishay Intertechnology High Energy Inrush Current Limiting PTC Thermistors Increase Performance in Active Charge and Discharge Circuits

Rhea-AI Summary

Vishay Intertechnology (NYSE: VSH) has introduced new PTCEL High Energy series inrush current limiting PTC thermistors for automotive and industrial applications. These devices feature maximum energy handling up to 340 J - five times higher than competitors at high ambient temperatures - with resistance values from 150 Ω to 1.5 kΩ and voltage capabilities up to 1200 VDC. The AEC-Q200 qualified thermistors maintain high energy handling at elevated temperatures (180 J at 85°C, 130 J at 105°C) and offer heat capacity of 2.6 J/K. They are designed for AC/DC converters, battery management, charging systems, and various industrial applications, withstanding over 100,000 inrush power cycles.

Positive

• Features 5x higher energy handling (340 J) compared to competing devices
• AEC-Q200 qualified, indicating automotive-grade reliability
• Withstands over 100,000 inrush power cycles
• Enables cost reduction through fewer components needed in circuits

Negative

• None.

Reducing Component Counts, Self-Protecting Devices Combine Energy Handling to 340 J With R25 Values to 1.5 kΩ and High Voltages to 1200 VDC

MALVERN, Pa., Oct. 30, 2024 (GLOBE NEWSWIRE) -- Vishay Intertechnology, Inc. (NYSE: VSH) today introduced a new series of inrush current limiting positive temperature coefficient (PTC) thermistors. Designed to increase performance in active charge and discharge circuits for automotive and industrial applications, Vishay BCcomponents PTCEL High Energy series devices combine maximum energy handling to 340 J — five times higher than competing devices at high ambient temperatures — with a wide range of resistance at 25 °C (R₂₅) values and high voltage capabilities.

Featuring R₂₅ values from 150 Ω to 1.5 k Ω, the thermistors released today enable increased efficiency and high maximum voltages of 1200 V_DC. The devices offer high energy handling capabilities at higher ambient temperatures — 180 J at 85 °C and 130 J at 105 °C — allowing designers to save space and lower costs by utilizing fewer components in their circuits. With their high switching temperature and operation to +105 °C, the PTCEL High Energy series offers a heat capacity to 2.6 J/K for all resistance values.

AEC-Q200 qualified and self-protecting — with no risk of over-heating — the thermistors provide current limitation and overload protection in AC/DC and DC/DC converters; DC-Link, battery management, and emergency discharge circuits; on-board chargers; home energy storage systems; heat pumps; motor drives; and welding equipment. For these applications, the devices withstand > 100 000 inrush power cycles and are highly resilient against non-switching peak power up to 25 kW.

The PTCEL High Energy series barium titanate thermistors consist of a ceramic pellet soldered between two tinned CCS wires and coated with a UL 94 V-0 compliant high temperature silicone lacquer. The devices are available in tape on reel packaging and can be automatically handled by pick and place equipment for lower placement costs. The thermistors offer a standard leadwire pitch of 10 mm, with leadwire pitches of 5.0 mm and 7.5 mm also available. SPICE and 3D models for the RoHS-compliant devices are available.

Device Specification Table:

Part number	PTCEL67R
R25 ()	150 to 1500
R25 tolerance (%)	30
Max. AC voltage (VRMS)	460 to 800
Max. DC voltage (VDC)	650 to 1200
Maximum energy (J) @ 25 °C	340
Heat capacity (J/K)	2.6
Lead pitch (mm)	5.0, 7.5, 10.0

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

Vishay manufactures one of the world’s largest portfolios of discrete semiconductors and passive electronic components that are essential to innovative designs in the automotive, industrial, computing, consumer, telecommunications, military, aerospace, and medical markets. Serving customers worldwide, Vishay is The DNA of tech.^® Vishay Intertechnology, Inc. is a Fortune 1,000 Company listed on the NYSE (VSH). More on Vishay at www.Vishay.com.

The DNA of tech^® is a registered trademark of Vishay Intertechnology, Inc.

Vishay on Facebook: http://www.facebook.com/VishayIntertechnology
Vishay Twitter feed: http://twitter.com/vishayindust

Link to product datasheets:
http://www.vishay.com/ppg?29207 (PTCEL High Energy Series)

Link to product photo:
https://www.flickr.com/photos/vishay/albums/72177720321548107

For more information please contact:
Vishay Intertechnology
Peter Henrici, +1 408 567-8400
peter.henrici@vishay.com
or
Redpines
Bob Decker, +1 415 409-0233
bob.decker@redpinesgroup.com

FAQ

What is the maximum energy handling capacity of Vishay's (VSH) new PTCEL High Energy thermistors?

Vishay's new PTCEL High Energy thermistors feature maximum energy handling up to 340 J at room temperature, with 180 J at 85°C and 130 J at 105°C.

What are the resistance values available for Vishay's (VSH) new PTC thermistors?

The new PTCEL High Energy series thermistors offer resistance values (R25) ranging from 150 Ω to 1.5 kΩ.

What is the maximum DC voltage capability of Vishay's (VSH) new thermistors?

The PTCEL High Energy series thermistors can handle maximum DC voltages up to 1200 VDC.

How many inrush power cycles can Vishay's (VSH) new thermistors withstand?

The PTCEL High Energy series thermistors can withstand more than 100,000 inrush power cycles.