Exhibit 23.1

CONSENT OF INDEPENDENT REGISTRED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders

Diodes Incorporated and Subsidiaries

We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 33-78716) of Diodes Incorporated and Subsidiaries of our report dated January 28, 2005 appearing in Item 8 in this Annual Report on Form 10-K. We also consent to the incorporation by reference of our report on the financial statement schedule, which appears at page 36 of this Form 10-K.

/s/ Moss Adams LLP

MOSS ADAMS LLP

Los Angeles, California

March 14, 2005

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