The B57621C471K62 is a thermistor, specifically a PTC (Positive Temperature Coefficient) thermistor, manufactured by EPCOS (TDK). PTC thermistors exhibit an increase in resistance with an increase in temperature, particularly after reaching a specific Curie temperature. This characteristic makes them suitable for overcurrent protection, self-regulating heating, and other temperature-sensitive applications.

Applications:

• Overcurrent Protection: Limits current flow in circuits, protecting components from damage due to overloads.
• Self-Regulating Heaters: Provides controlled heating without the need for external control circuitry.
• Motor Protection: Protects motors from overheating by limiting current flow.
• Demagnetization Circuits: Used in CRT monitors and televisions for demagnetizing the screen.
• Automotive Applications: Employed in various automotive systems for temperature sensing and control.

Features:

• PTC Characteristic: Resistance increases with increasing temperature.
• Self-Resetting: Automatically resets after the fault condition is removed.
• Compact Size: Allows for easy integration into various electronic circuits.
• High Reliability: Offers stable and reliable performance over a long lifespan.
• RoHS Compliant: Meets environmental standards for hazardous substance control.

Benefits:

• Effective Overcurrent Protection: Protects circuits and components from damage due to excessive current.
• Self-Regulating Heating: Provides consistent and controlled heating without external control.
• Reliable Performance: Offers stable and dependable operation in various applications.
• Easy Integration: Compact size allows for simple incorporation into existing circuits.
• Environmental Compliance: RoHS compliance ensures adherence to environmental regulations.

Technical Specifications:

Resistance at 25°C: 470 Ω

Tolerance: ±10%

Switching Temperature (Curie Temperature): Approximately 120°C

Maximum Operating Voltage: Varies depending on the specific application.

Operating Temperature Range: Typically -40°C to +125°C