Thursday, November 7, 2024

Excessive Vitality Inrush Present Limiting Thermistors


– Commercial –

Self-protecting units with built-in power dealing with ship 340 J, characteristic R25 values as much as 1.5 kΩ, and help excessive voltages as much as 1200 VDC—lowering part counts.

Excessive Vitality Inrush Present Limiting Thermistors

Vishay Intertechnology, Inc.has unveiled the PTCEL Excessive Vitality sequence, a brand new line of inrush present limiting optimistic temperature coefficient (PTC) thermistors. Engineered to boost efficiency in energetic cost and discharge circuits for each automotive and industrial purposes, these thermistors set a brand new commonplace with their superior power dealing with and versatile design.  

The Excessive Vitality sequence thermistors are able to managing power, which is 5 instances higher than what competing units can deal with at elevated ambient temperatures. This substantial improve in power dealing with is complemented by a broad collection of resistance at 25 °C (R25) values, starting from 150 Ω to 1.5 kΩ, and the flexibility to face up to excessive voltages as much as 1200 VDC. These options collectively contribute to greater effectivity and higher flexibility in circuit design.  

– Commercial –

The important thing options are:

  • Vitality absorption ranges as much as 340 J  
  • Helps over 100,000 inrush energy cycles  
  • Excessive resistance to non-switching peak powers as much as 25 kW

One of many key benefits of the sequence is its sturdy efficiency at excessive temperatures. The units preserve their power dealing with capabilities with 180 J at 85 °C and 130 J at 105 °C, permitting engineers to scale back the variety of elements wanted of their designs, saving house and slicing prices. Moreover, the thermistors provide a excessive switching temperature and might function as much as +105 °C, offering a warmth capability of two.6 J/Ok throughout all resistance values.  

The thermistors are AEC-Q200 certified and have a self-protecting design that eliminates the chance of overheating. This makes them best for purposes requiring present limitation and overload safety, resembling AC/DC and DC/DC converters, DC-Hyperlink circuits, battery administration programs, emergency discharge circuits, on-board chargers, dwelling power storage programs, warmth pumps, motor drives, and welding tools. The units are constructed to endure greater than 100,000 inrush energy cycles and might stand up to non-switching peak energy surges as much as 25 kW, making certain excessive resilience and long-term reliability.  

Constructed from barium titanate, every thermistor consists of a ceramic pellet soldered between two tinned CCS wires and coated with a high-temperature silicone lacquer that complies with UL 94 V-0 requirements. The thermistors can be found in tape-on-reel packaging, facilitating automated dealing with by pick-and-place tools, thus lowering placement prices. They arrive with a normal leadwire pitch of 10 mm, with choices for five.0 mm and seven.5 mm pitches additionally out there. SPICE and 3D fashions are supplied for these RoHS-compliant units.  Samples and manufacturing portions of the PTCEL Excessive Vitality sequence thermistors at the moment are out there, with a lead time of 10 weeks, prepared to satisfy the calls for of  automotive and industrial purposes.

For extra info, click on right here.


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