Package of 10!

NTC (negative temperature coefficient) Thermistor for inrush current limiting (ICL) applications.

40 ohm zero power resistance at 25°C

Manufacturer: Ametherm
Manufacturer Part Number: SL03 40001

Electrical Specifications
Resistance: 40.0 Ω ± 25 %
Max Steady State Current up to 65°C: 1.00 A
Max Rec. Energy Rating: 1 J
Actual Failure Instantaneous Energy: 3 J
Resistance @ 100% Max Current: 1.13 Ω
Resistance @ 50% Max Current: 1.44 Ω
Body Temperature at 100% Max Current: 113.80°C
Dissipation Constant: 5.9 mw/°C
Thermal Time Constant: 114 Sec.
Material Type (for Beta and Curve): A

Mechanical Specifications
Diameter: 3.6 mm
Thickness: 3 mm
Lead Length: 38 mm
Packaging: Bulk


Inrush Current Limiters are used to reduce the inrush current that occurs when an electrical device is switched on. High inrush current is the result of the maximum instantaneous input current drawn by an electrical device during the initial power up.
NTC Thermistors are non-linear resistors, which alter their resistance characteristics with temperature. The resistance of NTC will decrease as the temperature increases.