A279 15SP 2R5 NTC Thermistor - Inrush Current Limiter (ICL)

Protect your sensitive electronic circuits with the 15SP 2R5 NTC Thermistor. This Negative Temperature Coefficient (NTC) thermistor is specifically designed to function as an Inrush Current Limiter (ICL). Upon power-up, it provides high initial resistance to suppress the damaging surge current typically caused by large filter capacitors or motors. As the device heats up during operation, its resistance drops significantly, allowing for efficient current flow with minimal power loss.

The 15SP series is recognized for its high energy-handling capability and durable disc construction. It is an essential safety component for power supplies, ensuring the longevity of your fuses, bridge rectifiers, and capacitors by preventing "nuisance" trips and electrical stress.

Key Features & Specifications

• Model Number: 15SP 2R5

• Resistance at 25°C ($R_{25}$): 2.5 $\Omega$

• Max Steady State Current: 8A (Typical for 15mm series)

• Body Diameter: 15mm (Compact disc design)

• Safety Rating: UL Approved

• Type: Radial Leaded NTC Thermistor

• Function: Inrush Current Suppression / Circuit Protection

Applications

• Switch Mode Power Supplies (SMPS): Limits the surge to primary filter capacitors.

• AC Motors: Soft-start protection for small motors and vacuum cleaners.

• LED Drivers: Prevents high current spikes during initial power-on.

• Inverters: Protects circuitry in solar and battery-backed power systems.

• Transformers: Used in the primary circuit of large toroidal transformers.

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