The RM04FTN3903 is a thick film chip resistor manufactured by Yageo. It's designed for general-purpose applications in various electronic circuits. The '3903' indicates a resistance value of 390kΩ (390 x 10^3 ohms).

Applications

• Voltage dividers: Used to reduce voltage levels in a circuit.
• Current limiting: Restricting the flow of current to protect sensitive components.
• Pull-up/Pull-down resistors: Providing a default logic level in digital circuits.
• Feedback resistors: Setting the gain of operational amplifiers.
• General circuit protection: Limiting current during fault conditions.

Features

• Thick film technology: Provides good stability and reliability.
• Small size: The 0402 package (RM04) allows for high-density circuit designs.
• High resistance value: Suitable for applications requiring large resistance.
• Surface mount device (SMD): Designed for automated assembly on printed circuit boards.
• Lead-free termination: Compliant with RoHS environmental standards.

Benefits

• Reliable performance: Consistent resistance value over a wide range of operating conditions.
• Compact design: Saves valuable space on the PCB.
• Easy to assemble: Compatible with standard surface mount assembly processes.
• Environmentally friendly: Meets RoHS requirements for lead-free components.
• Cost-effective: Provides a balance of performance and price for general-purpose applications.

Additional Details

The RM04FTN3903 typically has a power rating of 1/16W (0.0625W) and a tolerance of 1%. The operating temperature range is typically -55°C to +155°C. The temperature coefficient of resistance (TCR) is typically ±100 ppm/°C. Refer to the Yageo datasheet for precise electrical characteristics, soldering recommendations, and reliability data.