The DFP10112 is a thermal cutoff (TCO) manufactured by TDK-Lambda Americas Inc. These devices are designed to protect electrical and electronic equipment from overheating by interrupting the circuit when a predetermined temperature is reached. This prevents damage to the equipment and reduces the risk of fire.

Applications

• Power supplies: Protects power supplies from overheating due to component failure or excessive load.
• Battery packs: Prevents thermal runaway in battery packs, ensuring safety and extending battery life.
• Electric motors: Protects motors from overheating due to overload or stall conditions.
• Heating appliances: Prevents overheating in appliances such as hair dryers, space heaters, and coffee makers.
• Transformers: Protects transformers from overheating due to excessive current or insulation breakdown.

Features

• Precise temperature sensing: Accurately detects when the temperature exceeds the specified limit.
• One-time operation: Once triggered, the TCO permanently opens the circuit.
• Compact size: Small form factor allows for easy integration into various devices.
• High reliability: Designed for long-term reliable operation.
• Flame retardant materials: Constructed from materials that resist burning, enhancing safety.

Benefits

• Overheat protection: Prevents damage to equipment due to excessive temperature.
• Fire prevention: Reduces the risk of fire caused by overheating.
• Enhanced safety: Increases the safety of electrical and electronic products.
• Extended equipment lifespan: Protects components from thermal damage, extending their service life.
• Reduced warranty claims: Prevents failures caused by overheating, reducing warranty costs.

Additional Details

The DFP10112 thermal cutoff is typically a small, non-resettable device that is connected in series with the circuit being protected. When the temperature reaches the TCO's rated temperature, an internal fusible link melts, permanently opening the circuit. Replacement of the TCO is necessary to restore functionality after it has been triggered. The operating temperature, holding temperature, and maximum current rating are critical parameters to consider when selecting a TCO. The device should be mounted in close proximity to the heat source for optimal performance.