EXHIBIT 23.1


            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


We hereby consent to the incorporation by reference in the Registration
Statements on Form S-8 (Nos. 333-69594, 333-47606 and 033-43691) of Supertex,
Inc. of our report dated June 16, 2004 relating to the consolidated financial
statements and financial statement schedule, which appears in this Form 10-K.




San Jose, California
June 16, 2004