Peerless PMT-40N25AL01-04
Miniature
1.5″ / 40 mm
Nominal diameter
235 Hz
Resonance
0.48
Q factor
82 dB
Sensitivity
± 1.9 mm
Linear excursion
10 W
Program Power
Discontinued
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Parts Express
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
81.7
dB
Frequency response
100 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
235
Hz
Mechanical quality factor
QMS
2.21
Electrical quality factor
QES
0.61
Total quality factor
QTS
0.48
Large signal parameters
Maximum linear excursion
xmax
1.9
mm
Air volume displaced at xmax
VD
1.6
cm³
Power handling
P
5
W
Program power
Pmax
10
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.7
Ω
Inductance (1kHz)
LE
0.08
mH
VC Diameter
26
mm
Former material
Kapton
Magnet
Force factor
Bl
3.0
N/A
Motor constant
Bl/√RE
1.57
N/√W
Air gap height
HAG
2
mm
Diaphragm
Effective diameter
33
mm
Effective area
SD
8.5
cm²
Moving mass
MMS
1
g
Moving mass (without air load)
MMD
1
g
Suspensions
Stiffness
KMS
2.19
N/mm
Compliance
CMS
457
µm/N
Equivalent volume to the compliance
VAS
0.05
L
Mechanical resistance
RMS
0.67
N·s/m
Dimensions
Nominal diameter
1.5
″
40
mm
Net weight
0.07
kg
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SD
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SD
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210 Hz
SD
7.8 cm²
150 - 20000 Hz
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xmax
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SPL1W
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