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                                                                     EXHIBIT 5.1

                  [Wilson Sonsini Goodrich & Rosati Letterhead]

                                 August 10, 2001

Sanmina Corporation
2700 North First Street
San Jose, CA 95134

         RE: REGISTRATION STATEMENT ON FORM S-4; REGISTRATION NO. 333-

Ladies and Gentlemen:

         At your request, we have examined the Registration Statement on Form
S-4 Registration No. 333- , (the "Registration Statement") filed with the
Securities and Exchange Commission in connection with the registration under the
Securities Act of 1933, as amended, of 198,605,240 shares of your common stock,
$0.01 par value ("Common Stock") issuable in connection with the merger (the
"Merger") contemplated by that certain Agreement and Plan of Reorganization
dated as of July 13, 2001, as amended (the "Merger Agreement"), among Sanmina
Corporation, a Delaware corporation ("Sanmina"), Sun Acquisition Subsidiary,
Inc., a Delaware corporation and wholly-owned subsidiary of Sanmina, and SCI
Systems, Inc., a Delaware corporation ("SCI").

         As your counsel in connection with the Registration Statement, we have
examined (i) the proceedings taken by you in connection with entering into the
Merger Agreement, (ii) the proceedings taken by you in connection with the
authorization of the issuance of shares of the Common Stock to be issued in
connection with the Merger (the "Shares"), and (iii) originals or copies,
certified or otherwise identified to our satisfaction, of such corporate
records, certificates of public officials and other documents as we have deemed
necessary to render this opinion.

         Based upon the foregoing, it is our opinion that the Shares, when
issued in exchange for shares of SCI in accordance with the Merger Agreement,
will be legally issued, fully paid and nonassessable shares of Common Stock.

         We express no opinion as to matters governed by any laws other than the
laws of the State of Delaware which are in effect as of the date hereof.

         We consent to the use of this opinion as an exhibit to the Registration
Statement and to the use of the name in the Registration Statement under "Legal
Matters."

                                      Very truly yours,
                                      WILSON SONSINI GOODRICH & ROSATI
                                      Professional Corporation

                                      /s/ WILSON SONSINI GOODRICH & ROSATI