The Susumu RL3720WT-R040-FN is a precision thin film chip resistor designed for highly accurate and stable performance in demanding electronic applications. It has a resistance value of 0.040 ohms. The 'WT' designation stands for wide terminals, enhancing heat dissipation and solder joint reliability. The 'FN' suffix likely denotes specific packaging or tolerance characteristics, which should be verified in the datasheet. This resistor is part of the RL series, renowned for its superior stability and precision.

Applications

• Current sensing in power supplies
• Motor control circuits
• Automotive electronics
• Precision instrumentation
• Feedback resistors in amplifier circuits

Features

• Low resistance value (0.040 ohms)
• Thin film construction for high precision
• Wide terminal (WT) design for improved heat dissipation
• Excellent temperature coefficient of resistance (TCR)
• High stability over temperature and time
• RoHS compliant

Benefits

• Accurate current measurement due to low resistance and tight tolerance
• Enhanced reliability in high-power applications
• Stable performance over a wide temperature range
• Easy integration into automated assembly processes
• Environmentally friendly

Additional Details

The RL3720WT-R040-FN resistor is fabricated using a thin film resistive element on a ceramic substrate. The wide terminal configuration improves heat dissipation by increasing the contact area between the resistor and the PCB, which is crucial in high-power applications. The thin film construction provides excellent temperature coefficient of resistance (TCR) performance, minimizing resistance changes with temperature variations. This ensures stable and predictable circuit performance. The 'FN' suffix may indicate a specific tolerance level or packaging type; consulting the datasheet is recommended for precise specifications. Susumu resistors are known for their consistent quality and are used in a variety of demanding applications where accuracy and reliability are essential. This resistor is designed for reflow soldering processes and can be easily integrated into automated assembly lines. Its robust construction ensures that it can withstand harsh environments, making it suitable for use in automotive and industrial applications. The resistor's small size and high performance make it an ideal choice for space-constrained applications requiring high accuracy and stability.