TT Electronics / Welwyn 221R Metal Film Resistor 0.25W 0.1%

The TT Electronics / Welwyn 221R Metal Film Resistor is a high-precision component from the RC Series, designed for applications requiring excellent stability and accuracy. With a resistance of 221 ohms and a tight tolerance of ± 0.1%, this axial leaded resistor ensures reliable performance in critical circuits where exact resistance values are paramount.

Featuring a power rating of 250mW (0.25W) and a voltage rating of 200V, it is well-suited for a variety of electronic assemblies. The metal film technology provides a low temperature coefficient of ± 15ppm/°C, guaranteeing minimal resistance drift across its wide operating temperature range of -55°C to 155°C.

This robust resistor offers consistent performance under varying environmental conditions. Its axial leaded package makes it suitable for through-hole mounting, ensuring secure placement on printed circuit boards. Whether for industrial, automotive, or general-purpose electronics, this TT Electronics component delivers the precision and durability required for demanding applications.

Key Specifications

• Resistance: 221 ohm
• Power Rating: 250mW (0.25W)
• Tolerance: ± 0.1%
• Voltage Rating: 200V
• Technology: Metal Film
• Temperature Coefficient: ± 15ppm/°C
• Operating Temperature Range: -55°C to 155°C
• Package: Axial Leaded