43P503-50K-K – TBC

The 43P503-50K-K is a precision multi-turn trimming potentiometer, nominally 0.5 inches square, manufactured by Vishay Spectrol. This part features a 25-turn adjustment mechanism for high-resolution voltage division or resistance trimming. The “-50K” suffix indicates a nominal resistance value of 50 kΩ with a standard tolerance of ±10%. The resistance element is typically constructed from cermet, providing good stability and a temperature coefficient typically around ±100 ppm/°C. The “-K” likely denotes a specific terminal style, potentially kinked leads for secure PCB mounting, or a specific packaging option. The power rating is typically 0.5W at 70°C, derated to 0W at 125°C. Expect an end resistance of less than 1% of the total resistance or 2 ohms, whichever is greater. The wiper setting stability is influenced by the mechanical construction and is typically specified in terms of percentage resistance shift after mechanical shock or vibration.