PRODUCT OBSOLESCENCE MEMOM U LT I F U S E ® P P T C R E S E T TA B L E F U S E SThree Bourns® Multifuse® PPTC Resettable Fuse Model Series
to be Replaced by Enhanced Alternatives
Riverside, California – February 26, 2021 – Revised July 6, 2021 – In accordance with our ongoing product life
cycle management, Bourns will be discontinuing the Multifuse® PPTC Resettable Fuse model MF-USML,
MF-NSML and MF-PSML series. Diminishing demand necessitates this action. The discontinued partnumbers and their recommended replacement part numbers can be found in the tables below.
MF-USML Series
Obsolete Part Number

Replacement Part Number

Obsolete Part Number

Replacement Part Number

MF-USML175-2

MF-USML175/6-2

MF-USML400-2

MF-USML400/6-2

MF-USML190-2

MF-USML200/6-2

MF-USML450-2

MF-USML450/6-2

MF-USML200-2

MF-USML200/6-2

MF-USML500-2

MF-USML500/6-2

MF-USML230-2

MF-USML260/6-2

MF-USML600-2

MF-USML600/6-2

MF-USML250-2

MF-USML260/6-2

MF-USML650-2

MF-USML650/6-2

MF-USML270-2

MF-USML260/6-2

MF-USML700-2

MF-USML700/6-2

MF-USML300-2

MF-USML300/6-2

MF-USML-LAB1

MF-USML/X Series

MF-USML350-2

MF-USML350/6-2

MF-USML-LAB2

MF-USML/X Series

MF-USML380-2

MF-USML380/6-2

MF2109 REV.
Americas: Tel +1-951 781-5500

EMEA: Tel +36 88 885 877

Asia-Pacific: Tel +886-2 256 241 17

americus@bourns.com

eurocus@bourns.com

asiacus@bourns.com

Three Bourns® Multifuse® PPTC Resettable Fuse Model Series to be Replaced by Enhanced Alternatives
February 26, 2021 - REVISED JULY 6, 2021
Page 2 of 2

MF-NSML Series
Obsolete Part Number

Replacement Part Number

Obsolete Part Number

Replacement Part Number

MF-NSML150-2

MF-NSML150/6-2MF-NSML400-2MF-NSML400/6-2MF-NSML175-2MF-NSML175/6-2MF-NSML450-2MF-NSML450/6-2MF-NSML190-2MF-NSML200/6-2MF-NSML500-2MF-NSML500/6-2MF-NSML200-2MF-NSML200/6-2MF-NSML550-2MF-NSML550/6-2MF-NSML260-2MF-NSML260/6-2MF-NSML600-2MF-NSML600/6-2MF-NSML300-2MF-NSML300/6-2MF-NSML-LAB1MF-NSML/X Series

MF-NSML350-2MF-NSML350/6-2MF-NSML-LAB2MF-NSML/X Series

MF-NSML380-2

MF-NSML380/6-2MF-PSML Series

Obsolete Part Number

Replacement Part Number

Obsolete Part Number

Replacement Part Number

MF-PSML075-2MF-PSML075/6-2

MF-PSML200-2

MF-PSML200/6-2

MF-PSML110-2

MF-PSML110/6-2

MF-PSML260-2

MF-PSML260/6-2

MF-PSML150-2

MF-PSML150/6-2

MF-PSML300-2

MF-PSML300/6-2

MF-PSML175-2

MF-PSML175/6-2

MF-PSML350-2

MF-PSML350/8-2

Customers must notify Bourns in writing within 30 days of publication of this notification if they consider
the discontinued product to be sole sourced by Bourns. In such cases, Bourns will work with customers
to negotiate an appropriate End of Product Life purchase for the discontinued products. Orders for thesediscontinued products during this End of Product Life transition period will be considered non-cancellable.
Products purchased during this End of Product Life transition period will be considered non-returnable andwill be covered by Bourns’ standard warranty
Please plan for the following deadlines:
Last time buy date: September 25, 2021 June 30, 2022
Last time ship date: December 18, 2021 September 30, 2022
If you have any questions or need additional information, please feel free to contact Customer Service/
Inside Sales.