The MMA02040C2989DB300 is a precision thin film resistor manufactured by Vishay. It is a leaded resistor designed for general purpose applications requiring high stability and reliability. This resistor is known for its excellent long-term stability, low noise, and tight tolerance, making it suitable for precision analog circuits and measurement equipment.

Applications

• Precision amplifiers: Used as feedback or gain-setting resistors in amplifiers requiring high accuracy.
• Measurement equipment: Employed in instruments like multimeters, oscilloscopes, and signal generators where precise resistance values are critical.
• Medical devices: Utilized in medical instrumentation for accurate signal conditioning and measurement.
• Automotive electronics: Used in sensor circuits and control modules requiring stable and reliable resistance values over a wide temperature range.
• Industrial control systems: Found in process control equipment and automation systems for accurate current and voltage sensing.

Features

• Thin film technology: Provides excellent stability, low noise, and tight tolerance.
• Leaded resistor: Allows for easy through-hole mounting on PCBs.
• High precision: Offers a close tolerance on the resistance value.
• Low temperature coefficient: Maintains stable resistance values over a wide temperature range.
• Excellent long-term stability: Ensures reliable performance over the lifetime of the application.
• RoHS compliant: Meets environmental regulations for hazardous substances.

Benefits

• Improved accuracy: High precision and low tolerance contribute to accurate circuit performance.
• Enhanced stability: Thin film technology and low temperature coefficient ensure stable resistance values over time and temperature.
• Increased reliability: Robust construction and long-term stability lead to reliable operation in demanding environments.
• Simplified design: Standard leaded package simplifies PCB layout and assembly.
• Reduced calibration requirements: High stability minimizes the need for frequent calibration.

Additional Details

The MMA02040C2989DB300 has a resistance value of 29.8 Ohms with a tolerance of ±0.5%. The temperature coefficient of resistance (TCR) is typically ±50 ppm/°C. It has a power rating of 0.25W. The operating temperature range is typically -55°C to +155°C. The resistor is available in a standard cylindrical leaded package (0204). The leads are typically tin-plated for good solderability. The component is marked with the resistance value and tolerance. Vishay's thin film resistors offer excellent pulse load capability.