TT Electronics Welwyn Precision Metal Film Resistor 64.9Ω 0.25W ±0.1%

The TT Electronics / Welwyn RC55 series precision metal film resistor delivers high stability and accuracy for demanding electronic circuits. This axial leaded component offers a resistance value of 64.9Ω with a tight ±0.1% tolerance, ensuring reliable performance in precision applications.

Constructed with a metal film deposited on a high quality ceramic former, the resistor features nickel plated steel caps force fitted to the former, with termination wires welded for secure connections. The helical cut adjustment and specially formulated epoxy coating protect the component while maintaining its electrical characteristics.

Key specifications include a power rating of 0.25W, a limiting element voltage of 350V, and a wide operating temperature range from -55°C to +155°C. The low noise and negligible voltage coefficient make it ideal for sensitive measurement and control circuits. With its precision ±0.1% tolerance and ±15ppm/°C temperature coefficient, this resistor ensures minimal drift and consistent performance in critical applications.

Applications

• Precision analogue circuitry
• Measurement and instrumentation
• Industrial control systems
• Test equipment
• Audio and signal processing

Specifications

• Resistance: 64.9Ω
• Power Rating: 250mW (0.25W)
• Tolerance: ±0.1%
• Temperature Coefficient: ±15ppm/°C
• Voltage Rating: 200V (limiting element voltage 350V)
• Operating Temperature: -55°C to +155°C
• Technology: Metal film
• Case Style: Axial leaded
• Product Range: RC series
• Low noise and negligible voltage coefficient

Exacting engineering and high-quality materials make this resistor a dependable choice for precision electronic design.