Patent ID: 7101488

Claim:
An electromagnetic wave absorber formed of an Mn—Zn ferrite comprising: a spinel primary phase which contains 40.0 to 49.9 mol % FeO and Fe 2 O 3 , 4.0 to 26.5 mol % ZnO, 0.1 to 4.0 mol % at least one of TiO 2 and SnO 2 , and a remainder of MnO and Mn 2 O 3 , wherein Mn 2 O 3 is present in an amount of 0.5 mol % or less and FeO is present in an amount of 0.2 mol % or less; and a secondary phase which contains CaO as a base component, wherein a mass of the spinel primary phase accounts for 50.0 to 99.0% of an aggregate mass of the spinel primary phase and the secondary phase.