Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statement (Form S-8) pertaining to the NVE Corporation 2000 Stock Option Plan (as amended by the shareholders on July 19, 2001) and the NVE Corporation 2001 Employee Stock Purchase Plan of our report dated April 25, 2005, with respect to the financial statements of NVE Corporation included in its Annual Report (Form 10-KSB) for the year ended March 31, 2005.

/s/ Ernst & Young LLP

Minneapolis, Minnesota

May 23, 2005