The BOURNS 3299W-1-504LF is a resistor cermet trimmer with a resistance of 500K Ohm and a 10% tolerance. It is rated for a power of 0.5W (1/2W). This trimmer has 25 turns and a pin-through-hole configuration for easy installation. Its compact size of 2.29mm (9.53 x 6.1 x 11.55mm) makes it suitable for various electronic applications. The trimmer comes in a convenient tube packaging for protection and organization.