Datasheet

nv/sa
Excellence in physical
SMA 24
Pagina 1 van 3
acoustics
Sint-Niklaas – Belgium
(I + L version)
Multi-Application buzzer
The Sonitron Multi-Application buzzers are low cost commercial grade
components for large volume applications. The SMA series are designed
to meet a wide range of current consumption, voltage, sound pressure,
mounting methods, connection, dimensions and packing requirements. The
buzzers have a built-in oscillator generating their working frequency. They
produce a highly reliable audible tone signal, giving either an extremely
clear and penetrating tone or a soft sound for non-aggressive signals.
ADVANTAGES & APPLICATIONS
ADVANTAGES :
• octagonal form
• models with different pin pitches
• light but solid state construction
• little power consumption, especially the
extra loud LC-versions
• important voltage range (1,5V to 24V)
• easy mountable
• SMT models with heat resistant label for
protection during automatic soldering,
packed in trays for automatic placing
APPLICATIONS :
• portable battery operating devices
• audible alarms
• gas detectors
• weighing and measuring equipment
• medical instrumentation
• timers
• control instrumentation and systems
• copiers
• automobiles
• games and toys
• computer peripherals
• cash registers, etc.
SPECIFICATIONS
Model Sound pressure
dB(A) *
Frequency (+/-
15%) Hz
Operating
voltage
Operating
current
Weight
SMA-24 92 dB(A) 3 kHz 1.5 to 24 Vdc 4.2 mA 4 g
SMA-24L 98 dB(A) 3 kHz 1.5 to 15 Vdc 6.7 mA 4 g
SMAI-24 92 dB(A) ** 3.5 kHz 5 to 24 Vdc 6.2 mA 4 g
* All measurements are made in free air at 21°C, at 30 cm, at 12V. Buzzers soldered on a PCB
board dimensions 24 cm x 11 cm.
** SMAI 24: intermittent pulse rate of 5 Hz (at 15 Vdc). All the other models have a continuous tone.
Operating temperature -20°C to +70°C
Storage temperature -40°C to +85°C
Life time (at 21°C) See expected life time curve in addendum
Case material
ABS (UL rating: 94 HB) for pin-versions
PPS (UL rating: 94 V0/5V) for SMD-versions
Standard colour of case Grey