VISHAY AMETHERM SL22 Series NTC Thermistor 2.5 Ohm, 15A

The VISHAY AMETHERM SL22 2R515 is a 2-pin radial-leaded NTC (Negative Temperature Coefficient) thermistor, engineered to provide effective and reliable inrush current limiting in electrical circuits. When equipment is switched on, a sudden surge of current can damage sensitive components in switching power supplies and other power devices. This thermistor presents a high initial resistance to this inrush current, which quickly heats the device, causing its resistance to drop to a negligible level, thereby protecting the circuit.

Constructed as part of the robust SL22 series, this component is rated for use in circuits of up to 480V AC, making it suitable for a wide range of industrial and commercial applications. Its design ensures stable performance and longevity, safeguarding expensive electronic equipment from damaging startup currents.

Key Specifications & Features

• Series: SL22
• Resistance at 25°C: 2.5 Ohm (with a tolerance of -20% to +20%)
• Disc Size: 22mm
• Maximum Steady State Current at 25°C: 15A
• Maximum Energy Rating at 25°C: 90J
• Thermal Time Constant: 94s
• Dissipation Constant: 32.4mW/°C
• Approvals: UL Recognised
• Lead Type: Radial

This inrush current limiter is an essential component for enhancing the reliability and lifespan of power supplies, motor drives, and other electrical systems, providing a simple yet highly effective solution for managing initial power surges.