Exhibit 5.1

                      OPINION OF SILICON VALLEY LAW GROUP


                   [Letterhead of Silicon Valley Law Group]


March 15, 2000


DCH Technology, Inc.
27811 Avenue Hopkins, #6
Valencia, CA 91355

Re:  Form SB-2 Registration Statement
     --------------------------------

Ladies and Gentlemen:

     We are rendering this opinion in connection with the Registration Statement
on Form SB-2 (File No. 333-96509) originally filed by DCH Technology, Inc. (the
"Company") with the Securities and Exchange Commission under the Securities Act
of 1933, as amended (such Registration Statement as amended from time to time is
referred to herein as the "Registration Statement"). The Registration Statement
relates to the registration of an aggregate of 4,957,021 shares of the Company's
Common Stock, $0.01 par value per share (the "Shares"), that may be offered for
resale by certain parties listed therein, some of which are issuable upon
exercise of the Company's warrants held by the parties listed in the
Registration Statement.  We understand that the Shares are to be offered and
sold in the manner described in the Registration Statement.

    We have acted as your counsel in connection with the preparation of the
Registration Statement and are familiar with the proceedings taken by the
Company in connection with the authorization and preparation for issuance of the
Shares. We have examined all such documents as we consider necessary to enable
us to render this opinion.

    Based upon the foregoing, we are of the opinion that the Shares have been
duly authorized and when issued and delivered by the Company, following any
exercise of warrants under the Registration Statement in accordance with the
terms of such warrants, will be legally issued, fully paid and non-assessable.

    We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to the reference to our firm under "Legal Matters" in
the Registration Statement.

                              Very truly yours,

                              /s/ Silicon Valley Law Group