PKM44EWH1001C Murata, PKM44EWH1001C Datasheet - Page 28

• Manufacturer Part Number: PKM44EWH1001C
• Description: Audio Indicators & Alerts 44mm 1kHz LEAD FREE
• Manufacturer: Murata
• Series: PKBr

Specifications of PKM44EWH1001C

• Technology: Piezoelectric
• Sound Pressure Level: 75 dB
• Voltage Rating: 30 V
• Dimensions: 24.3 mm L
• Diameter: 44 mm
• Resonant Frequency: 1000 KHz
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

7
!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
Piezoelectric sounder self drive type requires only
simple circuit and DC power supply. Since this type
uses resonant system, it is also available for alarms
which need large sound volume.
1. Gas alarms, burglar alarms, smoke detectors
2. Air conditioners, microwave ovens, washing machines
3. Toys, game machines
26
PKM24SPH3805
PKM30SPTH2001-B0
PKM30SPTH2501-B0
Piezoelectric Sound Components
Piezoelectric Sounders Self Drive Pin Type
Applications
and other home-electronic appliances controlled by
microcomputers
Standard Circuit Examples
Part Number
• 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.
150k
3.9k
Tr: 2SC1815Y or equivalent
PKM24SPH3805
Pressure Level
[12Vdc,10cm]
[12Vdc,10cm]
[12Vdc,10cm]
90 min.
75 min.
75 min.
Sound
Tr.
(dB)
620
GND
M
Vdc
G
F
3.8 0.4kHz
2.0 0.3kHz
2.5 0.3kHz
Oscillating
Frequency
[12Vdc]
[12Vdc]
[12Vdc]
(kHz)
Consumption
12 max.
20 max.
20 max.
Current
[12Vdc]
[12Vdc]
[12Vdc]
(mA)
PKM30SPTH2001/2501-B0
PKM24SPH3805
3.0Vdc to 20.0 Vdc
3.0Vdc to 20.0 Vdc
3.0Vdc to 20.0 Vdc
100k
Voltage Range
Operating
PKM30SPTH2001/2501-B0
12k
Tr: 2SC1815Y or equivalent
R15.25
1.0
M
130˚
18˚
Temp. Range
-20 to +70
-20 to +70
-20 to +70
Operating
24.0
Tr.
12.3
30.5
( C)
25.0
F
8.5
17.5
G
330
GND
M
5.0
G
PKM24SPH3805
PKM24SPH3810
PKM24SPH3807
PKM24SPH3801
F
M
Part Number
Temp. Range
18˚
-30 to +80
-30 to +80
-30 to +80
Hole pattern
Storage
Vdc
5.2
( C)
7.7
10.9
0.5 0.15
0.25 0.15
F
(In : mm)
Tol. : 0.5
(In : mm)
Tol. : 0.5
G
12.0
14.0
3-1.2
4.0
8.0
P37E.pdf
10.1.28