The TFSF1K50JE is a non-inductive, thick film resistor from the TFS series, specifically designed to absorb large amounts of energy in surge protection applications. It provides a resistance of 1,500 Ohms with a 5% tolerance, a power rating of 2 Watts, and is capable of handling an energy pulse of 55 Joules for 10ms. This axial-leaded component operates across a wide temperature range from -55°C to +200°C and has a temperature coefficient of 100ppm/°C. Due to its robust surge handling capabilities, it is ideal for use in medical equipment, power supplies, X-ray systems, and high-resolution CRT displays.