The HF105F-1/012DT-1ZSTF is a part manufactured by Hongfa, which is a relay switch. It is an 18mm electronic polarized latching power relay featuring dual outputs, a specially designed waterproof case, two normally open (NO) contacts, and a single normally closed (NC) contact. This part is rated to 10A/240VAC and 5A/30VDC and has a coil voltage of 12V DC. It has a maximum surge current of 30A and a minimum switching capacity of 10,000 operations. It features long service life, low power consumption, and excellent performance. It is RoHS compliant and UL recognized, making it a great choice for many commercial and industrial applications.