PDN01045

8/19/16

2/19/17

http://www.centralsemi.com

8/19/17

Summary:The 1N4728A, 1N4729A, 1N4730A, and 1N4731A, 1 watt Zener diodes in the DO-41 case are discontinued and now classified as End

of Life (EOL).

Although Central Semiconductor Corp. makes every effort to continue to produce devices that have been proclaimed EOL (End of Life) by

various manufacturers, it is an accepted industry practice to discontinue certain devices when customer demand falls below a minimum

level of sustainability. Accordingly, the following product(s) have been transitioned to End of Life status as part of Central's

Product Management Process. Any replacement product will be noted below. The effective date for placing the last purchase order will

be six(6) months from the date of this notice and twelve(12) months from the notice date for final shipments; this may be extended if

inventory is available.

Central Part Number

_________________________

Replacement

_________________________

1N4728A BK

N/A

1N4728A TR

N/A

1N4729A BK

N/A

1N4729A TR

N/A

1N4730A BK

N/A

1N4730A TR

N/A

1N4730C BK

N/A

1N4731A BK

N/A

1N4731A TR

N/A

Central would be happy to assist you by providing additional information or technical data to help locate an alternate source if we

have no replacement available. Please email your requests to engineering@centralsemi.com.