Exhibit 31.2

                        FORM OF SECTION 302 CERTIFICATION

I, Philip Franklin, certify that:

         I have reviewed this quarterly report on Form 10-Q of Littelfuse, Inc.;

                  1.       Based on my knowledge, this quarterly report does not
                           contain any untrue statement of a material fact or
                           omit to state a material fact necessary to make the
                           statements made, in light of the circumstances under
                           which such statements were made, not misleading with
                           respect to the period covered by this quarterly
                           report;

                  2.       Based on my knowledge, the financial statements, and
                           other financial information included in this
                           quarterly report, fairly present in all material
                           respects the financial condition, results of
                           operations and cash flows of the registrant as of,
                           and for, the periods presented in this quarterly
                           report;

                  3.       The registrant's other certifying officer and I are
                           responsible for establishing and maintaining
                           disclosure controls and procedures (as defined in
                           Exchange Act Rules 13a-14 and 15d-14) for the
                           registrant and have:

                           a)       Designed such disclosure controls and
                                    procedures to ensure that material
                                    information relating to the registrant,
                                    including its consolidated subsidiaries, is
                                    made known to us by others within those
                                    entities, particularly during the period in
                                    which this quarterly report is being
                                    prepared;

                           b)       Evaluated the effectiveness of the
                                    registrant's disclosure controls and
                                    procedures as of a date within 90 days prior
                                    to the filing date of the quarterly report
                                    (the "Evaluation Date"); and

                           c)       Presented in this quarterly report our
                                    conclusions about the effectiveness of the
                                    disclosure controls and procedures based on
                                    our evaluation as of the Evaluation Date;

                  5.       The registrant's other certifying officer and I have
                           disclosed, based on our most recent evaluation, to
                           the registrant's auditors and the audit committee of
                           the registrant's board of directors (or persons
                           performing the equivalent functions):



                           a)       All significant deficiencies in the design
                                    or operation of internal controls which
                                    could adversely affect the registrant's
                                    ability to record, process, summarize and
                                    report financial data and have identified
                                    for the registrant's auditors any material
                                    weaknesses in internal controls; and

                           b)       Any fraud, whether or not material, that
                                    involves management or other employees who
                                    have a significant role in the registrant's
                                    internal controls; and

                  6.       The registrant's other certifying officer and I have
                           indicated in this quarterly report whether there were
                           significant changes in internal controls or in other
                           factors that could significantly affect internal
                           controls subsequent to the date of our most recent
                           evaluation, including any corrective actions with
                           regard to significant deficiencies and material
                           weaknesses.

Dated: November 12, 2003

                                        /s/ Philip Franklin
                                        ----------------------------------------
                                        Philip Franklin
                                        Vice President, Operations Support & CFO