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SPM0437HD4H-B Datasheet, PDF (11/13 Pages) Knowles Electronics – Digital SiSonicTM Microphone
SPM0437HD4H-B
12. ADDITIONAL NOTES
(A) Shelf life: Twelve (12) months when devices are to be stored in factory supplied, unopened
ESD moisture sensitive bag under maximum environmental conditions of 30°C, 70% R.H.
(B) MSL (moisture sensitivity level) Class 1.
(C) Maximum of 3 reflow cycles is recommended.
(D) In order to minimize device damage:
 Do not board wash or clean after the reflow process.
 Do not brush board with or without solvents after the reflow process.
 Do not directly expose to ultrasonic processing, welding, or cleaning.
 Do not insert any object in port hole of device at any time.
 Do not apply over 30 psi of air pressure into the port hole.
 Do not pull a vacuum over port hole of the microphone.
 Do not apply a vacuum when repacking into sealed bags at a rate faster than 0.5 atm/sec.
13. MATERIALS STATEMENT
Meets the requirements of the European RoHS directive, 2011/65/EC as amended.
Meets the requirements of the industry-standard IEC 61249-2-21:2003 for halogenated
substances and Knowles Green Materials Standards Policy section on Halogen-Free.
Ozone depleting substances are not used in the product or the processes used to make the
product including compounds listed in annex A, B, and C of the “Montreal Protocol on
Substances that deplete the ozone Layer.”
Revision: A
Sheet 11 of 13
7/25/2013
©2013 Knowles Electronics