Description
Ametherm MCL20-500100 Thermistors 19mm 50ohms 20A INRSH CURR LIMITER, Kinked Leads
Manufacturer: Ametherm
Product Category: PTC Thermistors
RoHS Compliant
Resistance: 50 Ohms
Tolerance: 20 %
Termination Style: Radial
Operating Temperature Range: – 50 C to + 150 C
Brand: Ametherm
Current Rating: 250 mA
Lead Diameter: 1 mm
Lead Spacing: 7.8 mm
Packaging: Bulk
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
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 ? |
|
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.
Manufacturer:Ametherm
Datasheet:Ametherm/MCL20500100A.pdf
