PRODUCT CHANGE NOTIFICATION
Date issued: July 2, 2013
PCN #: RFISS‐2013001
PCN # RFISS‐2013001: LAST TIME BUY NOTIFICATION
Dear Valued Customer,
This letter is being sent to advise that the Transistor Solutions Division (RFISS) of Microsemi is announcing the
End of Life (EOL) for the devices listed in the table below. If you have purchased any of the Products listed in the
table below, over the past three (3) years, you are receiving this letter.
Lead Frame
Product Family
Products Affected
MRF5812, MRF5812R1,
MRF5812
MRF5812R2, MRF5812G,
MRF5812GR1, MRF5812GR2
MRF4427, MRF4427R1, MRF427R2,
MRF4427
MRF4427G, MRF4427GR1,
MRF4427GR2
B001
MRF5943, MRF5943R1, MF5943R2,
MRF5943
MRF5943G, MRF5943GR1,
MRF5943GR2
MRF8372, MRF8372R1,
MRF8372
MRF8372R2, MRF8372G,
MRF8372GR1, MRF8372GR2
MRF581A, MRF581AG,
MRF581
MRF581AGT, MRF581AT,
B011
MRF581G
MRF581G, MRF581GT
MRF559, MRF559G, MRF559GT,
MRF559
MRF559T
B012
BFR96
BFR96, BFR96G
MRF553, MRF553G, MRF553GT,
MRF553
MRF553T
B013
MRF555, MRF555G, MRF555GT,
MRF555
MRF555T
The decision to discontinue these products is due to the availability of the lead frames needed to manufacture
the products. The lead frame tooling has been de‐commissioned; therefore, our supplier is no longer able to
provide Microsemi with the necessary key component to manufacture the products listed.
Microsemi does not anticipate any issues in supporting its current backlog on record as of June 28, 2013.
The Transistor Solutions Division (RFISS) apologizes for any inconvenience this may create for you and will do it’s
very best to support any additional requirements for the devices affected by this End of Life notification.
If you have any questions concerning this notification, please contact:
Richard Pender
Transistor Product Manger
408‐764‐2481
Richard.pender@microsemi.com
3000 Oakmead Village Drive, Santa Clara, California 95051‐0808 Telephone: (408) 986‐8031 Fax:
(408) 986‐8120 www.microsemi.com
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