EXHIBIT 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation of our reports, included in this Form 10-K, into C.P. Clare Corporation's previously filed Registration Statements on Form S-8 (file Nos. 33-94038, 33-94060, 333-15097, and 333-61077, 333-65997). /s/ ARTHUR ANDERSEN LLP Boston, Massachusetts June 20, 2000