ADVANTAGES & APPLICATIONS
ADVANTAGES : APPLICATIONS :
very flat and solid construction
dust, water- and shockproof
resistant to temperature variations
broad frequency range in small size
combined use as speaker/micro
no electro-magnetic field (EMC)
little energy required at low frequencies
less current consumption needed in the
leads to the speaker
60% higher acoustic output for smaller
speakers compared to electrodynamic
speakers
low weight
low distortion
high impedance
can be driven directly by IC
SPECIFICATIONS
Model
SPS-2220-03 1-24 700-20000 85*
SPS-3530-03
SPS-4640-03
SPS-6555-03
SPS-8770-03
*@10 cm
IMPEDANCE
Operating
voltage
(Vac pp)
5-60
5-60
5-60
5-60
Z = -j.X
Frequency
range
(Hz)
700-20000
400-20000
300-20000
200-20000
Max. SPL
dB @ 1m, average
4 points
81
83
83
84
home equipment & domotics
communication equipment
talking buzzer & door bell
computer equipment
cars, busses and trains
vending machines
multimedia equipment
industrial equipment
portable voice recorders
paging systems
public address systems
instrumentation
mobile phone
car audio system
Applications Capacitive
load
GSM, GPS, MP3,
camera,...
PDA, GPS,
notebooks,...
PDA, GPS,
notebooks,...
Multimedia,...
Computers,...
70nF
220nF
225nF
480nF
580nF
Dimensions
mm
(LxWxH)
22x20x2
43.5x39x2
50x43.6x2
65x55x2
87x70x2
Theoretical the main impedance of the piezo speakers is a capacitive reactance and follows an
asymptotic function.
The typical practical impedance values (± 20%) for frequencies of 100 Hz up to 20 kHz of our speakers
are as follows:
87
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