Specification:

Size: 18x3.5x4.5  mm
Grade: Y30
Color: Black
Length: 1.8 cm ; Width: 0.35 cm ; Height: 0.45 cm
Max Operating Temperature: 300°C 

Description:
Ferrite also is known as Ceramic Magnet is a Composition of iron oxide and barium or strontium carbonate. These materials are readily available and at a lower cost than other types of materials used in the making of Permanent magnets.