I plugged in the part number on three of the biggest online parts distributors to see if they revealed any other manufacturers but I only found Philips.

Checking on several distributors online databases is usually the fastest way to find alternate manufacturers.

I tried the numbers on:
AVNET:
http://www.em.avnet.com/cgi-bin/sc.cgi

ARROW:
http://www.arrow.com/

FUTURE:
http://www.future-active.com/

-Jay C. Box