PKM24SPH3805 Murata, PKM24SPH3805 Datasheet - Page 4

• Manufacturer Part Number: PKM24SPH3805
• Description: Audio Indicators & Alerts 90DB 3.80KHZ 24.0MM ALARM(R)
• Manufacturer: Murata
• Series: PKMr

Specifications of PKM24SPH3805

• Resonant Frequency: 4 kHz
• Technology: Piezoelectric
• Sound Pressure Level: 90 dB
• Voltage Rating: 20 VDC
• Termination Style: Wire
• Diameter: 24 mm
• 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
2
o
Part Numbering
Piezoelectric Diaphragms
(Part Number)
qProduct ID
wMaterial
eProduct
rMetal Plate Diameter
If there is no decimal point, the decimal point code is omitted.
tForm of Piezoelectric Style
For an Ag electrode, this digit remains blank, the corresponding code
is omitted.
• 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.
Product ID
-31R2
Code
Code
Code
Code
DM
B
N
B
7
S
A hyphen (-) plus four digits alphanumerics
express metal plate outer dimensions. A
decimal point is expressed by the capital
letter "R".
Two digits express shape of ceramics.
q
7
w
N
Form of Piezoelectric Style
Piezoelectric Diaphragms
Metal Plate Diameter
e
Metal Plate Material
B
Ceramic Material
-31R2
Nickel Alloy
r
Product
Brass
SUS
DM
t
-1R5
y
u i
L
10
o
yResonant Frequency Type
If there is no decimal point, the decimal point is omitted.
uWith Feedback Electrode
iProduct Specification
oIndividual Specification Code
If the product has no individual specification, the corresponding code
is omitted.
Code
Code
Code
Code
-1R5
10
e
e
C
L
A hyphen (-) and three digits alphanumerics
express resonant frequency. A decimal point
is expressed by the capital letter "R".
These digits express a lead length, lead
number, and presence/absence of a
connector.
Individual Specification Code
With lead (available for RoHS)
Without Feedback Electrode
Resonant Frequency (kHz)
With Feedback Electrode
With Feedback Electrode
Product Specification
No lead (omitted)
P37E.pdf
10.1.28