The OX681KE is a 1-watt, 680-ohm fixed ceramic resistor from the OX series, engineered for circuits subject to high energy surges and peak power. It features a maximum working voltage of 300V, a single-impulse energy rating of 50 Joules, and a standard resistance tolerance of ±10%. The resistor operates reliably over a wide temperature range from -40°C to +220°C. This component is ideal for use in high voltage power supplies, R-C snubber circuits, and as an inrush limiter, often serving as a robust replacement for carbon composition resistors.