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                                                                    EXHIBIT 23.1
 
              CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS
 
     We have issued our reports dated August 15, 1995 (except for Note H to the
consolidated financial statements as to which the date is August 30, 1995)
accompanying the consolidated financial statements and schedule of Jaco
Electronics, Inc. as of June 30, 1994 and 1995 and for each of the three years
in the period ended June 30, 1995 contained in this annual report of Jaco
Electronics, Inc. on Form 10-K for the year ended June 30, 1995. We hereby
consent to the incorporation by reference of the aforementioned reports in the
Registration Statement of Jaco Electronics, Inc. on Form S-8/S-3 (File No.
33-89994, effective March 3, 1995).
 
                                          GRANT THORNTON LLP
 
Melville, New York
September 11, 1995