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 *   Lim Yong Jin 2. Date of Event Requiring Statement (Month/Day/Year) 08/29/2007 3. Issuer Name and Ticker or Trading Symbol PLEXUS CORP [PLXS] (Last) (First) (Middle) EA-HILLSIDE BAYAN LEPAS FREE INDST. ZONE, PHASE II, 11900 BAYAN LEPAS 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Regional Pres - Plxs Asia Pac. 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) PENANG, N8 - 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, $.01 par value 0 D Â

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
Option to buy (1)	01/30/2004(1)	01/30/2013	Common Stock	4,000	$ 8.975	D	Â
Option to buy (1)	05/18/2005(1)	05/18/2015	Common Stock	7,500	$ 12.94	D	Â
Option to buy (2)	05/17/2007(2)	05/17/2016	Common Stock	7,500	$ 42.515	D	Â
Option to buy (3)	05/17/2008(3)	05/17/2017	Common Stock	2,500	$ 21.41	D	Â
Option to buy (3)	08/01/2008(3)	08/01/2017	Common Stock	2,500	$ 23.83	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Lim Yong Jin EA-HILLSIDE BAYAN LEPAS FREE INDST. ZONE PHASE II, 11900 BAYAN LEPAS PENANG, N8 -	Â	Â	  Regional Pres - Plxs Asia Pac.	Â

Signatures

Yong Jim Lim, by Megan Matthwes, Attorney-in-Fact		09/07/2007
**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)	Options granted under the Plexus Corp. 2005 Equity Incentive Plan, or a predecessor plan, which qualifies under Rule 16b-3; now fully vested.
(2)	Options granted under the Plexus Corp. 2005 Equity Incentive Plan which qualifies under Rule 16b-3. Options vest one third each year, commencing on the first anniversary of grant.
(3)	Options granted under the Plexus Corp. 2005 Equity Incentive Plan which qualifies under Rule 16b-3. Options vest one half each year, commencing on the first anniversary of grant.

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