Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Kyle Jeffrey J
 2. Date of Event Requiring Statement (Month/Day/Year)
03/19/2007		 3. Issuer Name and Ticker or Trading Symbol
POWER ONE INC [PWER]
(Last)
(First)
(Middle)
740 CALLE PLANO		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP, Finance and CFO
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

CAMARILLO, CA 93012		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock (1) 40,000
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option 01/27/2004 01/27/2013(2) Common Stock 25,000 $ 4.96 D  
Employee Stock Option 02/23/2005 07/21/2014 Common Stock 40,000 $ 9.12 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Kyle Jeffrey J
740 CALLE PLANO
CAMARILLO, CA 93012		       VP, Finance and CFO  

Signatures

By: Randall H. Holliday, Attorney-in-Fact for 03/21/2007
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Represents phantom stock granted by the issuer. Each share of phantom stock is payable upon vesting in one share of common stock of the issuer. Of the aggregate number of shares reported, 10,000 shares are scheduled to vest on each of 5/17/07, 5/17/08 and 5/17/09, and 10,000 shares are scheduled to vest on 7/31/2010.
(2) 25% of the shares vest on each of the 1st, 2nd, 3rd, and 4th anniversaries of the date of grant (January 27, 2003).

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