PKM22EPPH4007-B0 Murata, PKM22EPPH4007-B0 Datasheet - Page 9

• Manufacturer Part Number: PKM22EPPH4007-B0
• Description: Audio Indicators & Alerts PIEZOELECTRIC SOUNDERS
• Manufacturer: Murata

Specifications of PKM22EPPH4007-B0

• Resonant Frequency: 4000 Hz
• Technology: Piezoelectric
• Sound Pressure Level: 85 dB
• Tone: Sounder, Ringer
• Voltage Rating: 25 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

!Note
• 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
• 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.
sales representatives or product engineers before ordering.
!Note
1. Applying load on the center area of the diaphragm
2. Please consult with Murata or Murata representative
1. Please do not touch the component with bare hand
2. The component may be damaged if mechanical stress
3. Take care to protect operating circuit from surge voltage
4. If DC voltage is applied to the component, silver migration
5. The resistor should be used as shown in Fig. A.
6. Avoid excessive pulling of lead wire because wire may
Notice (Soldering and Mounting)
may cause cracking in the ceramic element. When
the diaphragm is supported by the edge, the load
should be applied only around the edge.
if soldering of the component is needed.
Notice (Handling)
because electrode may be corroded.
exceeding specifications is applied.
resulting from excessive force, falling, shock or
temperature change.
may occur. Please pay full attention to avoid subjecting
the component to DC voltage for long periods.
A suitable resistance value should be chosen, preferably
1k to 2k . Instead of this measure, a diode may also be
applied as shown in Fig. B.
break or soldering point may come off.
• 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.
IC
Piezoelectric Diaphragms Notice
Fig. A
IC
Fig. B
R
P37E.pdf
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