ERJ-3EKF3900V

The ERJ-3EKF3900V is a precision thin film resistor manufactured by Panasonic, designed for a variety of electronic applications where reliability and accuracy are paramount. This component is part of the ERJ series, known for its high performance and stability.

Physical Characteristics: The ERJ-3EKF3900V is a surface-mount device (SMD) with a compact size, typically measuring 0603 (1.6 mm x 0.8 mm). Its small footprint makes it suitable for modern electronic circuits where space is at a premium. The resistor is encapsulated in a robust ceramic substrate, which provides excellent thermal stability and durability.

Electrical Specifications:

• Resistance Value: The resistor has a nominal resistance of 39 ohms, which is suitable for various applications requiring precise resistance.
• Tolerance: It features a tolerance of ±1%, ensuring that the actual resistance value remains close to the specified value, which is critical for maintaining circuit performance.
• Temperature Coefficient: The temperature coefficient is typically around ±25 ppm/°C, indicating minimal change in resistance with temperature fluctuations, which is essential for applications in varying environmental conditions.
• Power Rating: The ERJ-3EKF3900V can handle a power rating of 0.1 watts (100 mW), making it suitable for low-power applications.

Performance Features: The thin film technology used in the ERJ-3EKF3900V allows for superior performance characteristics, including low noise and high stability over time. This makes it ideal for precision applications such as instrumentation, automotive electronics, and telecommunications.

Applications: Due to its high precision and reliability, the ERJ-3EKF3900V is commonly used in:

• Signal processing circuits
• Voltage dividers
• Feedback circuits in amplifiers
• Current sensing applications

Environmental Considerations: The resistor is designed to withstand harsh environmental conditions, with a wide operating temperature range typically from -55°C to +155°C. It is also compliant with RoHS standards, ensuring that it is free from hazardous substances.

In summary, the Panasonic ERJ-3EKF3900V is a high-quality, compact thin film resistor that offers excellent performance, stability, and reliability for a wide range of electronic applications. Its precise resistance value, low tolerance, and robust construction make it a preferred choice for engineers and designers looking for dependable components in their circuits.