sonitron 1.2.4. SMAT TRANSDUCERS

sonitron 1.2.4. SMAT TRANSDUCERS
SMAT TRANSDUCERS
sonitron
®
Excellence in physical acoustics
1.2.4. SMAT TRANSDUCERS
Both the SMA buzzers and the SMAT (Sonitron Multi-Application) transducers are specially
developed to meet a wide range of requirements in sound pressure, mounting methods,
connection possibilities and dimensions. The transducers do not have a built-in oscillator.
The drive frequency must be generated with electronics outside the transducer.
Recommended drive circuits are described in this catalogue. Our transducers produce a
highly reliable audible tone signal, giving either an extremely clear and penetrating tone or
a soft sound for non-aggressive signals. They are available in five sizes: 13mm, 17mm,
21mm, 24mm and 30mm.
1.2.4.1. Advantages & applications
ADVANTAGES:
APPLICATIONS:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
octagonal form
models with different pin pitches
light but solid construction
not fixed working frequency
easily mountable
SMAT-13 and SMAT-17 for limited space
applications
• SMD models with heat resistant labels for
protection during reflow soldering,
• packed in a tray for automatic placing
audible alarms
gas detectors
measuring and weighing equipment
medical instrumentation
timers
instrumentation and control systems
copiers
automobiles
games & toys
cash registers, etc.
1.2.4.2. Specifications
Model
SMAT
SMAT
SMAT
SMAT
SMAT
Sound pressure*
dB(A)
13
17
21
24
30
See
See
See
See
See
graph
graph
graph
graph
graph
Frequency
range
800
800
600
400
300
-
5000
5000
5000
5000
5000
Capacitance
(±30%)
Hz
Hz
Hz
Hz
Hz
7.8 nF
17.5 nF
12.4 nF
18.6 nF
25 nF
Operating
voltage
0
0
0
0
0
to
to
to
to
to
30
30
30
30
30
VAC
VAC
VAC
VAC
VAC
Weight
pp
pp
pp
pp
pp
1 g
2 g
2.5 g
4 g
5 g
* All measurements are made in free air at 21°C at 30 cm at 12V. The test buzzer is soldered on a pcb board
with dimensions 24 cm x 11 cm.
Operating temperature
Storage temperature
Life time (at 21°C)
Case material
Standard colour of case
40°C to +85°C
-40°C to +85°C
See expected life time curve in addendum
ABS (UL rating: 94 HB) for pin-versions
PPS (UL rating: 94 V0/5V) for SMD-versions
Grey
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SONITRON MULTI-APPLICATIONS SERIES
April 2002
Excellence in physical acoustics
1.2.4.3. Electrical parameters
Model
SMAT-13
SMAT-17
Sound pressure dB (A)
vs. frequency
100
dB (A)
100
90
90
80
80
70
70
60
60
50
50
40
40
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
kHz
Model
SMAT-21
kHz
SMAT-24
Sound pressure dB (A)
100
vs. frequency
dB (A)
100
90
90
80
80
70
70
60
60
50
50
40
40
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
kHz
kHz
Model
8
SMAT-30
Sound pressure dB (A)
vs. frequency
100
90
80
Precision of frequency: ±15%
Operating voltage: 10 V (pp)
(square wave)
70
60
50
40
0
1
2
3
4
5
6
7
8
kHz
All measurements are made at 30 cm in free air at 21°C.
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SONITRON MULTI-APPLICATIONS SERIES
April 2002
SMAT TRANSDUCERS
sonitron
®
Excellence in physical acoustics
1.2.4.4. Dimensions (All dimensions are in mm)
SMAT-13
SMAT-17
SMAT-21
Pin-version
13,96+/- 0,3
21+/- 0,3
17,5+/- 0,3
2,5
5
3
Ø2
Ø3
Ø 3,8
0,6
0,6
0,6
6
6,5+/- 0,2
6
8,5+/- 0,2
9,5+/- 0,2
7,5/10
7,5/10
Ø 0,8
R 0,4
SMD-version
6
10/15/17,5
Ø 0,8
Ø 0,8
0,25
0,25
0,25
6,5+/- 0,2
8,5+/- 0,2
9,5+/- 0,2
+/
±0,1
- 0,2
1,5
1,6
- 0,2
1,5+/±0,1
1,6
±0,1
- 0,2
1,5+/
1,6
Ø 0,8
Ø 0,8
+/- 0,5
21
Recommended
PCB lay-out
+/- 0,5
28
Recommended
PCB lay-out
Recommended
PCB lay-out
3
3
3
7,25
Ø 0,8
22,5+/- 0,5
7,25
7,25
22
23,5
29
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SONITRON MULTI-APPLICATIONS SERIES
April 2002
STANDARD BUZZERS
SMAT TRANSDUCERS
sonitron
®
Excellence in physical acoustics
(All dimensions are in mm)
SMAT-24
SMAT-30
Pin-version
30+/- 0,3
6
24+/- 0,3
7,5
Ø 6,4
6
Ø4
+/- 0,3
0,6
15,5
6
10,5+/- 0,2
10/15/17,5/20,32
Ø 0,8
R 0,4
Ø 0,8
0,25
15,5+/- 0,3
15,5+/- 0,3
SMD-version
0,25
±0,1
- 0,2
1,5+/
1,6
±0,1
- 0,2
1,5+/
1,6
Ø 0,8
Ø 0,8
+/- 0,5
+/- 0,5
30
30
Recommended
PCB lay-out
Recommended
PCB lay-out
3
7,25
3
31
7,25
31
23
SONITRON MULTI-APPLICATIONS SERIES
April 2002
SMAT TRANSDUCERS
sonitron
®
Excellence in physical acoustics
1.2.4.5. Drive circuits
IC Circuit
d’oscillation
IC
Oscillation
Circuit
Circuit Multivibrateur
Multivibrator
Circuit
Vcc
R1
1K
8
2
6
R1
560
4
7
R2
100K
R2
8K2
R2
8K2
R1
560
Series
SMAT
3
NE555
C1
C1
22nF
Series
SMAT
1
C1
Vcc
22nF
22nF
GND
GND
Inverter
OscillateurOscillator
Inverseur
Nandgate
Oscillator
Oscillateur porte
NAND
R2
47K
C
Ra
Fréquence
de sortie
Output frequency
==
Rb
Series
SMAT
C1
1nF
Series
SMAT
R3
100K
1
Rb C
Les portes NAND sont
Nandgates are CMOS 4011A
du
type CMOS 4011A
Les Inverseurs sont
du type
4069.
Inverters
are CMOS 4049 ou
or 4069.
Tone Generator
- Gate multifonction
Multifunction
Générateur
de ton- àCMOS
porte CMOS
5 Nandgateà Oscillator
- 3 -tones
Générateur
Porte - 3 Tons
5 Parties
Porte
Gate
A
Tone
Ton
Series
SMAT
Series
SMAT
B
Pulse frequency
Fréquence
de pulsation
A
A B
B TONE
TON
4093
IC == 4093
12V àà 2mA
2mA(en
(in fonctionnement)
function)
12V
L
H
L
H
L
L
H
H
Selection
Sélection
Cont/Int
Cont/Int
1
2
3
IC = CD 4093
When the transducers are used in a drive circuit at one single frequency, the designer
should bear in mind that the precision of the frequency, as mentioned on the graph ‘sound
pressure vs. frequency’ is ±15%. We therefore recommend to testing the sound pressure
level with the transducer connected to the final drive circuit.
24
SONITRON MULTI-APPLICATIONS SERIES
April 2002
STANDARD BUZZERS
SMAT TRANSDUCERS
sonitron
®
Excellence in physical acoustics
1.2.4.6. Product codification
SMA
T
–
13
17
21
24
30
Square diameter (mm)
Sonitron
MultiApplication
Transducer
P7.5
P10
P15
P17.5
P20.32
S
P: Pin distance (in mm)
S: SMD terminals
1.2.4.7. List of available product types
SMAT-13 P7.5
SMAT-13 P10
SMAT-13 S
SMAT-17 P7.5
SMAT-17 P10
SMAT-17 S
SMAT-21
SMAT-21
SMAT-21
SMAT-21
P10
P15
P17.5
S
SMAT-24
SMAT-24
SMAT-24
SMAT-24
SMAT-24
P10
P15
P17.5
P20.32
S
SMAT-30
SMAT-30
SMAT-30
SMAT-30
P15
P17.5
P20.32
S
A heat protection label in capton material is glued on the SMD model of the SMA buzzer.
This enables the user to pick up the buzzer by vacuum.
During the reflow soldering process the heat shield label remains on the buzzer and must
be removed after soldering. These heat protection labels are standard for all SMD buzzers.
1.2.5. MODELS ON REQUEST
The SMA series can be delivered, upon special request, with the following protection:
• Wash tabs
A wash tab is glued on the sound emitting hole of the buzzer to protect it from water
penetrating into the hole of the cavity. The PCB at the back is also sealed with a silicon
film. To order this part, please add WASHTAB to the model number of the SMA series.
• Acrylcoating
For applications in aggressive humid conditions, models containing a membrane with a
protective coating are available. The protective coating gives a complementary assurance
against smog. Add MC to the model number of the SMA series.
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SONITRON MULTI-APPLICATIONS SERIES
April 2002
SMAT TRANSDUCERS
sonitron
®
SMAT TRANSDUCERS
sonitron
®
Excellence in physical acoustics
1.2.6. PACKAGING
All models with pin terminals are put on a polystyrene board (245 L x 245 W) and sold in
boxes with dimensions 250 L x 250 W x 125 H.
Number
SMA-13
series
250
(6 x 250)
1500
per board
per box
SMA-17
series
150
(6 x 150)
900
SMA-21
series
100
(5 x 100)
500
SMA-24
series
100
(5 x 100)
500
SMA-30
series
50
(3 x 50)
150
All SMD models are packed in trays (245 L x 245 W) and sold in boxes with dimensions
250 L x 250 W x 125 H.
Number
per tray
SMA-13 S
100
(9 x 100)
900
per box
SMA-17 S
81
(8 x 81)
648
SMA-21 S
49
(7 x 49)
343
SMA-24 S
42
(5 x 42)
210
SMA-30 S
25
(6 x 25)
150
Dimensions of the tray and position of the SMD components:
Model
SMA-13
SMA-17
SMA-21
SMA-24
SMA-30
series
series
series
series
series
22
24
30
35
36
A
mm
mm
mm
mm
mm
B
16 mm
18 mm
16.7 mm
22.6 mm
19 mm
B
A
A
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SONITRON MULTI-APPLICATIONS SERIES
April 2002
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