Datasheet

Excellence in physical acoustics
sonitron
®
April 2002
5
SONITRON STANDARD BUZZERS
Operating temperature -35°C to +75°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)
Standard colour of case Grey (except the SP27 which is black)
Terminal material Tinned brass for both pin terminals and fast-on terminals
Supply voltage The standard buzzers are not damaged by reverse voltage
connection (except the SP27 types).
Mounting PC-board: by soldering the terminals. Front panel mounting:
the buzzers can be mounted in panels up to 14 mm thickness
(SP27 max. 7 mm). They are locked with a locking pin
(diameter 1mm) and secured to the panel with a plastic nut.
Foresee a hole of diameter 32 mm (1.14").
Maximum torque on plastic nut: 6 Nm
The step of the thread is 1.5 mm
1.1.6. SELECTION GUIDE
The selection of an acoustic signal can be complex. That is the reason why we present below our standard models
with their most appropriate application.
SC 235 A General purpose buzzer with medium sound output for soft alarm in industrial and military
applications where a high reliability is requested. These buzzers can be used in a wide
supply voltage range.
SC 235 B General purpose buzzer with high sound output for low power consumption. Ideally
suitable for alarm and industrial sound signals. These models combine high performances
and great reliability. The SC 235 B is considered today as the most popular type.
SW 535 B A warbling or cricket tone with a special sound effect for warning and alerting signalling
devices. These buzzers are also used as a warning device with discrimination against the
existing background noise.
SP27 Small size buzzer to be used in applications where space is limited. (Max. supply voltage is
9 Vdc). See also information in addendum.
SUM 516 A1/A5 A universal buzzer type with a selection of three functions: continuous, intermittent or
stop. High sound output for low power consumption and low supply voltages. This type
can be used for multiple applications where a soft signal is required and a high reliability
is a must.
SULM 516 B5 A universal buzzer with a selection mode of different functions: continuous, intermittent or
stop. High sound output at very low power consumption. It can be used in all alarm and
warning signals where performance, power consumption and size are important. The SULI
and the SUC models are simplified versions of the SULM 516 B5 that can be used when
mode control is not required.
SC 0715 BL Special loud buzzer that already functions at very low voltage (0.7 Vdc), going up to 12
Vdc, producing 98 dB(A) at 1m. Wide range of applications, including battery powered
alarms.
SC 515 C Extreme loud buzzers for multiple applications requiring a highly penetrating sound. The
SCI 515 C interrupts the sound, creating more attention.
SW 515 C Extreme loud buzzer with warbler or sweep tones. These buzzers produce a very aggressive
sound. They are perfect alarm bells and warning devices for all kinds of applications.
STANDARD BUZZERS
SCI 235 A1/A5
SCI 235 B1/B5
SCR 535 B
SCI 515 C
SWP 515 C
STANDARD BUZZERS