UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 4
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
( ) Check this box if no longer subject to Section 16.
Form 4 or Form 5 obligations may continue. See Instructions 1(b).
1. Name and Address of Reporting Person
Hecht, Kenneth
c/o Unitrode Corporation
7 Continental Boulevard
Merrimack, NH 03054
USA
2. Issuer Name and Ticker or Trading Symbol
Unitrode Corporation
(UTR)
3. IRS or Social Security Number of Reporting Person (Voluntary)
4. Statement for Month/Year
May 31, 1998
5. If Amendment, Date of Original (Month/Year)
6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
(X) Director ( ) 10% Owner ( ) Officer (give title below) ( ) Other
(specify below)
7. Individual or Joint/Group Filing (Check Applicable Line)
(X) Form filed by One Reporting Person
( ) Form filed by More than One Reporting Person
<TABLE>
<CAPTION>
___________________________________________________________________________________________________________________________________
Table I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned |
___________________________________________________________________________________________________________________________________|
1. Title of Security |2. |3. |4.Securities Acquired (A) |5.Amount of |6.Dir |7.Nature of Indirect |
| Transaction | or Disposed of (D) | Securities |ect | Beneficial Ownership |
| | | | Beneficially |(D)or | |
| | | | | A/| | Owned at |Indir | |
| Date |Code|V| Amount | D | Price | End of Month |ect(I)| |
___________________________________________________________________________________________________________________________________|
<S> <C> <C> <C><C> <C> <C> <C> <C> <C>
Common Stock |5/27/9|M | |4,000 |A |$4.1563 |23,198 * (1) |D | |
|8 | | | | | | | | |
- -----------------------------------------------------------------------------------------------------------------------------------|
| | | | | | |51,508 ** (1) |I |By General Part. |
- -----------------------------------------------------------------------------------------------------------------------------------|
___________________________________________________________________________________________________________________________________|
<CAPTION>
___________________________________________________________________________________________________________________________________
Table II -- Derivative Securitites Acquired, Disposed of, or Beneficially Owned |
___________________________________________________________________________________________________________________________________|
1.Title of Derivative |2.Con- |3. |4. |5.Number of De |6.Date Exer|7.Title and Amount |8.Price|9.Number |10.|11.Nature of|
Security |version |Transaction | rivative Secu |cisable and| of Underlying |of Deri|of Deriva |Dir|Indirect |
|or Exer | | | rities Acqui |Expiration | Securities |vative |tive |ect|Beneficial |
|cise | | | red(A) or Dis |Date(Month/| |Secu |Securities |(D)|Ownership |
|Price of| | | posed of(D) |Day/Year) | |rity |Benefi |or | |
|Deriva- | | | |Date |Expir| | |ficially |Ind| |
|tive | | | | A/|Exer-|ation| Title and Number | |Owned at |ire| |
|Secu- | | | | | D |cisa-|Date | of Shares | |End of |ct | |
|rity |Date |Code|V| Amount | |ble | | | |Month |(I)| |
___________________________________________________________________________________________________________________________________|
<S> <C> <C> <C> <C><C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Stock Option (right to|$4.1563 |5/27/|M | |4,000 |D |12/9/|6/9/9|Common Stock|4,000 | |0 |D | |
buy) | |98 | | | | |88 |8 | | | | | | |
- -----------------------------------------------------------------------------------------------------------------------------------|
| | | | | | | | | | | | | | |
___________________________________________________________________________________________________________________________________|
</TABLE>
Explanation of Responses:
* Shares are held in a living trust over which Mr. Hecht retains investment
control for the benefit of Mr. Hecht and
his
spouse.
** These securities are held by Juntos Partnership, a general partnership, of
which the reporting person is a
general partner. The reporting person disclaims beneficial ownership of these
securities except to the extent of
his pecuniary interest
therein.
(1) On October 6, 1997, the Common Stock of Unitrode Corporation split
2-for-1, resulting in the general
partnership and the living trust acquiring 25,754 and 9,599 additional shares
of Common Stock, respectively.
SIGNATURE OF REPORTING PERSON
/s/ Kenneth Hecht
DATE
June 5, 1998
