TT Electronics Welwyn RC55 Precision Resistor 75R 0.25W 0.1%

The TT Electronics Welwyn RC55 series comprises axial leaded, precision metal film resistors designed for high-reliability applications. These resistors feature a metal film deposited on a high-quality ceramic former, ensuring stable and accurate performance across a wide range of operating conditions.

Robust construction includes nickel-plated steel caps force-fitted to the former, with termination wires welded to the caps for secure connections. The resistance value is precisely adjusted using a helical cut in the film, and the component body is protected by a specially formulated epoxy coating, providing excellent durability and environmental protection.

With a power rating of 0.25W and a resistance of 75 ohms with a tight ±0.1% tolerance, this resistor delivers exceptional precision. It operates within a temperature range of -55°C to +155°C and features low noise alongside a negligible voltage coefficient, making it suitable for demanding electronic circuits where accuracy is critical.

Key Specifications

• Resistance: 75 ohm
• Power Rating: 0.25W (250mW)
• Tolerance: ±0.1%
• Voltage Rating: 200V
• Limiting Element Voltage: 350V
• Temperature Coefficient: ±15ppm/°C
• Operating Temperature: -55°C to +155°C