The WSF-25121305%TR is a precision resistor manufactured by Vishay. It is part of the WSF series, known for its high stability, low temperature coefficient of resistance (TCR), and excellent long-term performance. This resistor is designed for current sensing, voltage division, and other precision applications.

Applications

• Current Sensing: Used in power supplies, motor control circuits, and battery management systems for accurate current measurement.
• Voltage Dividers: Provides precise voltage division in instrumentation and control circuits.
• Feedback Resistors: Used in amplifier circuits for stable gain control.
• Precision Measurement Instruments: Employed in multimeters, oscilloscopes, and other instruments requiring high accuracy.
• Automotive Electronics: Applications requiring high stability and reliability in harsh environments.

Features

• High Precision: Offers tight tolerance for accurate resistance values.
• Low TCR: Minimizes resistance changes due to temperature variations.
• Excellent Long-Term Stability: Maintains consistent performance over time.
• Surface Mount Device (SMD): Suitable for automated assembly processes.
• RoHS Compliant: Meets environmental regulations for hazardous substances.

Benefits

• Accurate Measurement: Provides reliable and precise measurements in various applications.
• Stable Performance: Ensures consistent performance under varying temperature and load conditions.
• Reduced Calibration Requirements: Minimizes the need for frequent calibration due to its high stability.
• Easy Assembly: Surface mount design allows for efficient and automated assembly.
• Long Lifespan: Designed for long-term reliability and performance.

Additional Details

The WSF-2512 series resistors are available in various resistance values and tolerances to meet specific application requirements. The 2512 package size is a standard SMD package, allowing for easy integration into existing circuit boards. The resistor is constructed using a thin film technology, which provides excellent stability and low noise characteristics.

Specific to WSF-25121305%TR: This specific part number indicates a resistance value of 13000000 Ohms (13MOhms) with a tolerance of 5%. The “TR” suffix likely denotes tape and reel packaging for automated assembly. For detailed specifications, refer to the official Vishay datasheet.

Technical Specifications (General WSF-2512 Series):

• Power Rating: Typically 1 Watt
• Resistance Range: Wide range available, from ohms to megohms
• Tolerance: Available in various tolerances, such as ±0.1%, ±0.5%, ±1%, ±5%
• TCR: Typically ±25 ppm/°C or better
• Operating Temperature Range: -55°C to +155°C