SXL Series

Sonitron's extremely loud series presented in a standard series housing are used in conditions that require immediate attention-getting and action to prevent dramatic situations. The standard series are based on the highest piezo technology and are considered as most robust series for industrial applications. The standard buzzers use a special shaped membrane (curved edge), which is fixed and glued into the housing. They are shockproof, as well as dust and waterproof (IP67).

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  • Extremely high sound pressure level with a very clear and penetrating sound output
  • Solid-state shockproof buzzer
  • Dust and waterproof, rated to IP67
  • PCB and panel mounting; pin or fast-on terminals
  • Very high reliability
  • Low power consumption
  • Wide operating supply range
  • Wide temperature range
  • Electronics potted in epoxy
  • Small in dimensions


AlarmsAgricultural equipmentMonitoring and test equipment 
Medical equipmentMilitary equipmentTrucks & automobiles
Boatscockpit alarm Signaling & process control equipment
Fire detectorsVending-machine


ModelFunctionOperating voltageFrequency
+ 30%
current (dB(A)
Sound pressure level * dB(A)Weight (g)
min. Vdcmax. Vdc@V min.@V max.
SXLC 515 Ccontinuous51530002513010222
SXLI 515 C1multifunction515300013709622
SXLW 515 Cwarbler51530003012010422
SXLP 515 Csweep51530005511010222


*All measurements are made @1meter @12 Vdc in free air @12°C. 

Operating temperature-40°C to +85°C
Storage temperature-40°C to +85°C
Lifetime (at 21°C)@12Vdc continuous use min. 9 hours 
Case materialABS (UL rating: 94 HB) 
Standard color of caseBlack
Terminal materialTinned brass for both pin terminals and fast-on terminals
SupplementalReverse voltage protected



Current consumption vs operating voltage 



Dimensions ( All dimensions are in mm) 

Standard options 

Option codeexampleDescription
W100SC0715BL-W100With 2 wires: length 10cm ( instead of 2 pins)
W150SC0715BL-W150With 2 wires: length 15cm ( instead of 2 pins)
W30SC0715BL-W300With 2 wires: length 30cm ( instead of 2 pins)
ACRSC235A-ACRAcryl coating: The protective coating gives complementary protection against smog. All standard SXL series are perfectly waterproof (IP67) without the mentioned coating.
Gasket (O-ring)GASKETRubber sealing ring for waterproof assembly. Assembly the O-ring together with Loctite 5331 can be used. 

**Other options can be made based on your requirements, please contact our support team at

Product codification

F**  If no terminal specification, the model is standard delivered with round pins, diameter 1.5mm. Fast-on terminals are available in 2 dimensions: F= 4.76 mm (0.187 inch) or F2 = 6.35mm (0.250 inch).

M***  Military norm MIL-STD 202


List of available products



Mounting guidelines 

Printed circuit boardBy soldering the terminals
Front panel mountingPanel mounting with a plastic nut. The buzzers can be mounted in panels up to 14mm thickness (SP27 max. 7mm). They are locked with a locking pin (dimensions 0.8×2.3mm) 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 (wrench size 38mm).
The step of the thread is 1.5 mm (M32x1.5).