Welwyn PCF Series SMD Chip Resistor, 1kΩ ±0.1%, 62.5mW, 0603

The Welwyn PCF Series SMD Chip Resistor is a high-precision, thin-film component designed for demanding electronic applications where accuracy and stability are paramount. It features a 1kΩ resistance with an exceptionally tight tolerance of ±0.1%, ensuring reliable and consistent performance in critical circuits.

Constructed using advanced thin-film technology, a nichrome film is selectively deposited onto a high-purity 96% alumina substrate. This construction is then subjected to a precise heat treatment to achieve excellent Temperature Coefficient of Resistance (TCR) and long-term stability. The resistance value is finely adjusted using a controlled laser trim process for ultimate accuracy. The component is further protected with an epoxy coating and features robust wrap-around terminations plated with nickel and a 100% tin matte finish, optimised for soldering.

Key Features & Benefits

• Precision Performance: Offers a resistance tolerance of ±0.1% and a low temperature coefficient of ±25ppm/°C for reliable operation across a wide temperature range from -55°C to 125°C.
• Superior Construction: The thin-film technology on an alumina substrate provides excellent stability and humidity resistance, with a passivated range available for enhanced performance in challenging environments.
• Optimised for Manufacturing: The rectangular 0603 1608 Metric package features small dimensional tolerances, making it ideally suited for handling by automated pick-and-place equipment.
• Reliable Termination: The wrap-around terminations with tin plating ensure excellent solderability for both reflow and wave soldering processes, facilitating strong electrical connections to PCBs.
• Robust Specifications: Rated for 62.5mW power dissipation and a maximum working voltage of 50V, this resistor is built for durability in a compact form factor.