TT Electronics Welwyn RC Series Metal Film Resistor 499R 0.25W

The TT Electronics Welwyn RC Series Metal Film Resistor offers precise, stable, and reliable performance for demanding electronic applications. This high-precision resistor boasts a 499ohm resistance with an exceptionally tight tolerance of ±0.1%, ensuring circuit accuracy and consistency. It is constructed using robust metal film technology, which provides excellent long-term stability and a low temperature coefficient of ±15ppm/°C, minimising resistance drift across varying environmental conditions.

With a power rating of 250mW (0.25W) and a voltage rating of 200V, this axial-leaded component is suitable for a wide range of analogue and digital circuits where precision is paramount. Its robust design supports an extensive operating temperature range from -55°C to 155°C, making it ideal for use in industrial, telecommunications, medical, and automotive electronics that must perform reliably in harsh environments.

The resistor's axial leaded package ensures easy installation and compatibility with standard PCBs, facilitating both prototyping and volume production. The high-quality construction from TT Electronics/Welwyn, a trusted name in passive components, guarantees dependable operation and longevity, making it an excellent choice for precision voltage dividers, feedback networks, measurement equipment, and calibration circuits.

Key Specifications

• Resistance: 499ohm
• Tolerance: ±0.1%
• Power Rating: 250mW (0.25W)
• Technology: Metal Film
• Temperature Coefficient: ±15ppm/°C
• Voltage Rating: 200V
• Operating Temperature: -55°C to 155°C
• Package: Axial Leaded
• Dimensions (LxWxD): 43mm x 33mm x 15mm
• Weight: 0.24 grams

This precision resistor is a fundamental component for engineers and technicians who require unwavering accuracy and stability in their electronic designs.