Size: As the name suggests, miniature relays are smaller than regular relays, making them suitable for applications where space is limited.

Working Principle: Like other relays, miniature relays use an electromagnet to open or close a set of contacts. When the coil is energized, the magnet attracts or repels the armature, changing the state of the contacts. This allows a low-power signal to control a high-power circuit. Types of Contacts: Miniature relays typically offer different types of contacts, such as: Single Pole Single Throw (SPST): One contact is either open or closed. Single Pole Double Throw (SPDT): One common contact can be connected to either of two other contacts. Double Pole Double Throw (DPDT): Two contacts are controlled simultaneously.