Ametherm SL08 50001

The SL08 50001 inrush current limiting thermistor from Ametherm offers a maximum steady state current of 1.1A (up to +25°C), resistance of 50Ω ±15% (at 25°C) and a maximum recommended energy rating of 12J. The Ametherm SL series suppresses surge currents that occur when electrical circuits are switched on, preventing serious damage to sensitive electronic components if their rated current values are exceeded. Connected in series with the load, at “switch-on” they limit the current due to its relatively high cold resistance. As a result of current flow, the thermistor self-heats and in turn reducing its resistance value so that once the initial surge current has been safely held off, the resistance in the thermistor is maintained at a low value to maximise efficiency

• Inrush current limiting thermistor
• Resistance of 50Ω (at 25°C)
• Maximum steady state current of 1.1A (up to +25°C)
• Maximum recommended energy of 12J
• Voltage ratings of 120VAC, 240VAC, 480VAC and 680VAC
• Actual energy failure at 28J
• 0.95Ω at 100% maximum current and 1.9Ω at 50% maximum current
• Body temperature of +122°C at maximum current
• Dissipation constant of 9.3mW/°C
• Tolerance ±15%
• Thermal time constant of 29mW/s
• Material Type H (for Beta and Curve)

Typical applications for the SL series include:

• Limit current inrush to PSUs and battery chargers
• Lighting circuits and thermostat protection
• Electric motor soft start

The below table gives the full specifications of the Ametherm SL08 50001