Datasheet

nv/sa
Excellence in physical
SMA 21
Pagina 3 van 3
acoustics
Sint-Niklaas – Belgium
(LC + LT + LV version)
Multi-Application buzzer
PRODUCT CODIFICATION
21 L C P10
LV T P15
SMA
↓
Sonitron Multi-
Application
↓
Square diameter
(mm)
↓
L : Loud
LV : Low voltage
↓
C : C-MOS
T : Transistor
P17.5
S
↓
P : Pin distance
(in mm)
S : SMD terminals
LIST OF AVAILABLE PRODUCT TYPES
Version
Standard
(°°)
Transistor
(LT)
Low Current
(LC)
Low voltage
(LV)
SMA-21 serie SMA-21 P10 SMA-21LT P10 SMA-21LC P10 SMA-21LV P10
SMA-21 P15 SMA-21LT P15 SMA-21LC P15 SMA-21LV P15
SMA-21 P17.5 SMA-21LT P17.5 SMA-21LC P17.5
SMA-21 S SMA-21LT S SMA-21LC S SMA-21LV S
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.
• Acryl coating
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.