The PTC C940 is a Positive Temperature Coefficient (PTC) thermistor, a product of EPCOS (TDK), widely used for overcurrent protection in electronic circuits. Its key function is to limit current flow during an overcurrent event by significantly increasing its resistance as its temperature rises, thus protecting sensitive components.

Applications

• Overcurrent protection in electronic circuits
• Short circuit protection
• Motor and transformer protection
• Power supplies
• Telecommunication equipment

Features

• Positive Temperature Coefficient (PTC) characteristic
• Fast response time to overcurrent
• Compact size for easy integration
• High reliability and long service life
• Lead-free construction

Benefits

• Effective overcurrent and short circuit protection
• Prevents damage to electronic components
• Enhances the safety and reliability of electronic devices
• Self-resetting feature after fault correction
• Environmentally friendly due to lead-free design

Additional Details

The PTC C940 offers a dependable and effective solution for overcurrent protection. Its rapid response and significant resistance increase during an overcurrent condition provide crucial protection against short circuits and overloads. The self-resetting capability allows the circuit to return to its normal operating state once the fault is resolved, eliminating the need for manual resets. Refer to the official EPCOS (TDK) datasheet for specific electrical characteristics like trip current, holding current, and maximum voltage. Attention to ambient temperature and operational environment is key for achieving optimal performance.