The WF12H2491BTL is a precision thick film chip resistor manufactured by Walsin Technology Corporation, designed for a wide range of electronic applications where stable resistance and precise values are required. Its 1206 package size offers a balance between compactness and power dissipation capability.

Applications

• Consumer Electronics: Used in devices like televisions, audio systems, and set-top boxes for current limiting, voltage division, and feedback control.
• Industrial Equipment: Incorporated in power supplies, motor drives, and industrial control systems where reliable and stable resistance is necessary.
• Automotive Electronics: Employed in automotive control units (ECUs), lighting systems, and sensor modules for accurate and consistent performance.
• Medical Devices: Utilized in medical instrumentation, monitoring equipment, and diagnostic devices that require high precision and long-term stability.
• Power Supplies: Functions as current-sensing resistors or voltage dividers in power supply circuits to maintain stable output voltage and current.

Features

• Resistance Value: 2.49 kΩ
• Tolerance: ±0.1%
• Power Rating: 0.25W
• Temperature Coefficient: ±25 ppm/°C
• Package Size: 1206 (3216 Metric)
• Termination: Standard wraparound termination for robust soldering and connection.
• RoHS Compliant: Lead-free and compliant with the Restriction of Hazardous Substances (RoHS) directive, ensuring environmental safety.

Benefits

• High Precision: The ±0.1% tolerance ensures highly accurate resistance values, which is critical for precise circuit operation.
• Stable Performance: The ±25 ppm/°C temperature coefficient provides exceptional resistance stability across a wide range of operating temperatures.
• Enhanced Power Handling: The 1206 package allows for increased power dissipation compared to smaller packages, suitable for more demanding applications.
• Reliable Operation: The thick film construction and wraparound termination ensure excellent mechanical and electrical stability.
• RoHS Compliance: Meets environmental regulations, making it suitable for use in environmentally conscious products.

Additional Details

The WF12H2491BTL resistor is designed for reflow soldering processes and can withstand the high temperatures involved in PCB assembly. Its resistance value of 2.49 kΩ is well-suited for a variety of circuit applications, and its tight tolerance ensures predictable circuit behavior. The component is supplied on tape and reel, facilitating automated assembly processes, making it ideal for high-volume manufacturing environments.