Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements of Diodes Incorporated and subsidiaries (the “Company”) of our report dated February 25, 2009, relating to the consolidated financial statements (which report expresses an unqualified opinion and includes an explanatory paragraph regarding the Company’s adoption of Statement of Financial Accounting Standards No. 157, Fair Value Measurements and Financial Accounting Standards Board Interpretation No. 48, Accounting for Uncertainty in Income Taxes—an interpretation of FASB Statement No. 109) and the effectiveness of the Company’s internal control over financial reporting included in this Annual Report (Form 10-K) for the year ended December 31, 2008.

• Registration Statement on Form S-8 (No. 333-78716) pertaining to the Incentive Bonus Plan and 1993 Non-Qualified Stock Option Plan of Diodes Incorporated;

• Registration Statements on Form S-8 (Nos. 333-106775 and 333-124809) pertaining to the 2001 Omnibus Equity Incentive Plan of Diodes Incorporated; and

• Registration Statement on Form S-3 (No. 333-137803) pertaining to convertible senior notes and common stock issuable by Diodes Incorporated.

/s/ Moss Adams LLP  

Los Angeles, California
February 25, 2009

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