Introducing Vishay's Innovative PTC Thermistors
Vishay Intertechnology, Inc. (NYSE: VSH) has announced an exciting addition to its product lineup: a new series of insulated, surface-mount inrush current limiting positive temperature coefficient (PTC) thermistors. Aimed at boosting board-level efficiency and minimizing costs, these devices are set to make a strong impact in automotive and industrial markets.
Thermistors that Outperform Competitors
The newly launched PTCES series offers remarkable features, including energy handling capabilities up to 340 joules and maximum voltages reaching 1200 volts. This combination of attributes makes these thermistors particularly compelling for circuit designers. Compared to other options on the market, Vishay's devices stand out with energy handling capabilities that can be up to 260% higher, which means fewer components are required, ultimately saving board space and lowering costs.
Applications and Versatility
These thermistors are perfect for various applications, including AC/DC and DC/DC converters, energy dump circuits, motor drives, and on-board chargers for electric vehicles. As self-protecting components, they can endure over 100,000 inrush power cycles and have received AEC-Q200 qualification, ensuring robustness against shock and vibration. This quality eliminates the need for reinforced mounting adhesives, simplifying installation and enhancing reliability in critical applications.
Specifications of the PTCES Series
Vishay's PTCES series thermistors offer users a host of advantageous specifications:
- Series: PTCES
- Resistance (R25): 60 to 1000 ?
- Tolerance (R25): 30%
- Max. AC voltage: 350 to 800 VRMS
- Max. DC voltage: 500 to 1200 VDC
- Maximum energy: 240 to 340 J @ 25 °C
- Heat capacity: 2.4 to 2.6 J/K
- Operating temperature: -40 to +105 °C
Compact Design and Easy Integration
With a low profile of just 9.6 mm, these RoHS-compliant and halogen-free thermistors are designed for seamless integration into diverse systems. Their construction includes a solder-connected ceramic PTC encapsulated in an UL 94 V-0 compliant, self-extinguishing plastic housing, which also features insulation up to 3 kV AC. These qualities allow them to be automatically mounted by pick and place machinery, significantly reducing placement costs for manufacturers.
Availability and Further Information
Samples and production quantities of the PTCES series thermistors are currently available, with expected lead times of around 10 weeks. Vishay Intertechnology operates as a pivotal supplier in the electronic components market, recognized for its extensive portfolio comprising both discrete semiconductors and passive elements vital for innovative designs across multiple sectors, including automotive, aerospace, and telecommunications.
Frequently Asked Questions
What are PTC thermistors?
PTC thermistors are devices that exhibit a positive temperature coefficient, meaning their resistance increases with temperature, allowing them to limit current and protect circuits from overloads.
How do Vishay's thermistors improve efficiency?
Vishay's PTC thermistors can handle higher energy levels and voltages, allowing circuit designers to reduce components and save space on boards, ultimately lowering manufacturing costs and improving efficiency.
What types of applications are suitable for these thermistors?
The PTCES series is ideal for various applications, including automotive systems, energy equipment, and industrial machinery needing reliable current limitation and protection.
Are these devices compliant with safety standards?
Yes, Vishay's PTC thermistors are AEC-Q200 qualified, indicating they meet rigorous automotive standards for reliability under mechanical stress.
How can I get more information about the PTCES series?
For further details, you can reach out to Vishay Intertechnology directly, or visit their website where more specifications and resources are available.
