The AAVID THERMALLOY 322505B00000G is a high-quality heat sink designed for passive cooling in TO-5 applications. This aluminum heat sink features a black anodized finish, which not only enhances its visual appeal but also provides enhanced heat dissipation capabilities. With a thermal resistance of 56°C/W, this heat sink efficiently removes and disperses heat to keep your electronic components operating at optimal temperatures. Suitable for a wide range of electronic devices, this compact and durable heat sink ensures reliable and efficient performance.