Murata PKM22EPPH4007 piezo transducer 85 dB/10 cm 4 kHz 22 mm PKM22EPPH4007 Fiche De Données
Codes de produits
PKM22EPPH4007
Piezoelectric Diaphragms Notice
7
1
!
Note
• Please read rating and
!
CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
■ Notice (Soldering and Mounting)
■ Notice (Handling)
1. Please do not touch the component with bare hand
because electrode may be corroded.
2. The component may be damaged if mechanical stress
exceeding specifications is applied.
3. Take care to protect operating circuit from surge voltage
resulting from excessive force, falling, shock or
temperature change.
4. If DC voltage is applied to the component, silver migration
may occur. Please pay full attention to avoid subjecting
the component to DC voltage for long periods.
5. The resistor should be used as shown in Fig. A.
A suitable resistance value should be chosen, preferably
1k
Ω
to 2k
Ω
. Instead of this measure, a diode may also be
applied as shown in Fig. B.
6. Avoid excessive pulling of lead wire because wire may
break or soldering point may come off.
IC
Fig. A
IC
Fig. B
R
1. Applying load on the center area of the diaphragm
may cause cracking in the ceramic element. When
the diaphragm is supported by the edge, the load
should be applied only around the edge.
2. Please consult with Murata or Murata representative
if soldering of the component is needed.
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
!
Note
P37E.pdf
07.12.12