BK1/S500-32-R is a fast-acting, low breaking capacity glass tube fuse designed for circuit protection in electronic applications. It features a 5 mm × 20 mm physical size with silver-plated endcaps, a 32 mA rated current, and a 250 V voltage rating, providing a typical cold resistance of 40 O and a typical melting I-T of 0.000047 A². The fuse is designed to IEC 60127-2 standards and carries multiple international agency approvals including cURus, CSA, VDE, BSI, and IMQ. It is commonly used in consumer electronics, industrial control circuits, and telecommunications equipment where reliable overcurrent protection and fast response times are required.