TT ELECTRONICS / WELWYN PCF Series 100 Ohm ±0.1% Precision Thin Film Chip Resis

The TT ELECTRONICS / WELWYN PCF Series is a precision thin film chip resistor, engineered for high-stability, low-noise applications. Constructed with a thin-film nichrome material selectively deposited on a high-purity 96% alumina substrate, this component delivers exceptional accuracy and reliability. The manufacturing process involves a precise laser trim to achieve the exact 100-ohm resistance value, ensuring the tight ±0.1% tolerance is consistently met.

Featuring wrap-around terminations plated with nickel and a 100% tin matte finish, the resistor is perfectly suited for reflow or wave soldering onto printed circuit boards or ceramic substrates. Its compact 0603 1608 Metric package and rectangular shape with small dimensional tolerances make it ideal for high-density PCB designs and automated pick-and-place assembly processes.

Key Features & Specifications

• High Precision: A low temperature coefficient of ±25ppm/°C ensures minimal resistance drift across the wide operating temperature range of -55°C to +125°C.
• Superior Stability: The passivated range offers enhanced performance in humid environments, making it suitable for demanding industrial and automotive applications.
• Robust Construction: An epoxy protective coating safeguards the thin-film element, while the wrap-around terminations provide a strong, reliable electrical connection.
• Reliable Power Handling: With a power rating of 62.5mW (0.0625W) and a voltage rating of 50V, this resistor is built for consistent performance in low-power, precision circuits such as measurement equipment, medical devices, and communication systems.

This chip resistor represents a premium choice for design engineers where accuracy, long-term stability, and miniaturisation are critical requirements.