PKM33EPH1202C Murata, PKM33EPH1202C Datasheet - Page 24

• Manufacturer Part Number: PKM33EPH1202C
• Description: Audio Indicators & Alerts PIEZOELECTRIC SOUNDERS
• Manufacturer: Murata

Specifications of PKM33EPH1202C

• Technology: Piezoelectric
• Sound Pressure Level: 68 dB
• Voltage Rating: 40 V
• Termination Style: Solder
• Diameter: 33 mm
• Resonant Frequency: 1200 Hz
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

5
!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
Washing of the component is not acceptable, because
it is not sealed.
1. The component may be damaged if mechanical stress
2. Take care to protect operating circuit from surge voltage
3. If DC voltage is applied to the component, silver migration
4. The resistor should be used as shown in Fig. A.
5. Avoid excessive pulling of lead wire because wire may
22
Piezoelectric Sounders (External Drive SMD Type) Circuit/Notice
The following are examples of externally driven circuits.
(1) Unstable multi-vibrator using Tr.
(2) Circuits using inverters or NAND gates.
(1)
510
Circuit
Notice (Soldering and Mounting)
Notice (Handling)
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.
20k
0.01 F
0.01 F
20k
510
1k
1k
+V
Input
(2)
1M
120k
0.001 F
1k
1k
+V
IC
Fig. A
IC
Fig. B
R
P37E.pdf
10.1.28