MCL20 500100-A Thermistor
The News: Ametherm introduces a new PTC circuit protection thermistor with an industry-high 680 V voltage rating.
Key Benefits:
 |
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 (https://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: https://www.ametherm.com/inrush-current/inrush-ptc-thermistor
Download this New Product Announcement as a PDF: https://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.
