MCL20 500100-A Thermistor 

The News: Ametherm introduces a new PTC circuit protection thermistor with an industry-high 680 V voltage rating.

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Key Benefits:

PTC Thermistor for Inrush Current

 High 680 V voltage rating

 Maximum inrush current of 20 A at maximum peak voltage

 Resistance at 25 °C of 50 Ω, with a tolerance of 20 %

 Dissipation constant of 55.0 mW/°C

 Heat capacity of 5.45 J/°C

 Thermal time constant of 62 s

 Radial-leaded for easy PCB mounting

 19 mm diameter, 9 mm maximum profile, and 7.8 mm lead spacing

 RoHS-compliant

 Available with straight leads and outside or inside kinked leads

 

Target Applications:

·         Inrush current limiting and overcurrent protection in applications such as welding equipment and plasma cutters with extremely high voltages from 480 V to 930 V

 

Key Specifications:

Max. Voltage Rating

680 V

Max. Inrush Current

20 A

Thermal Constant

62 s

Dissipation Constant

55 mW/°C

Heat Capacity

5.45 J/°C

Resistance at 25°C

50 Ω

Tolerance

20 %

Diameter

19 mm

Operating Temperature Range

-50 °C to +150 °C

 

The Context: With its industry-high voltage rating, Ametherm’s MCL20 500100-A can withstand hundreds of hits of maximum inrush current without degrading. The device offers a short reset time, and as a PTC thermistor a quick reset will not result in a large inrush current, as its resistance is already at a high state. The result is extremely high reliability and stability in high-voltage applications. With a 19 mm diameter, 9 mm maximum profile, and 7.8 mm lead spacing, the MCL20 500100-A provides designers with a more compact and cost-effective alternative to combining a power resistor, relay, and timer on one circuit to achieve the same functionality.

 

Availability: Offered direct or through Ametherm’s network of distributors (http://www.ametherm.com/distributors), samples and production quantities of the MCL20 500100-A are available now, with factory lead times of seven weeks.

 

More info: http://www.ametherm.com/inrush-current/inrush-ptc-thermistor

 

Download this New Product Announcement as a PDF: http://www.ametherm.com/datasheetspdf/MCL20500100A.pdf

 

Request a Sample: Call 800-808-2434 (toll free in the United States) or 775-884-2434 from outside the U.S. and Canada.