date 11/22/2019
page 1 of 4
MODEL: CMT-1270S-SMT-TR │ DESCRIPTION: MAGNETIC BUZZER TRANSDUCER
cuidevices.com
FEATURES
• externally driven
• SMT
• washable
Vo-p
0V
SPECIFICATIONS
parameter conditions/description min typ max units
rated voltage 1.5 Vo-p
operating voltage 1.2 2.0 Vo-p
current consumption at rated voltage, 2,400 Hz square wave, ½ duty 60 mA
rated frequency 2,400 Hz
sound pressure level at 10 cm (A-weight), rated voltage, 2,400 Hz
square wave, ½ duty 80 85 dBA
coil resistance 13.0 16.0 19.0 Ω
dimensions 12.8 x 9.8 x 7.0 mm
weight 2.0 g
material PPS (S-206)
terminal SMT type (Au plating)
operating temperature -20 70 °C
storage temperature -30 85 °C
RoHS yes
Notes: 1.Allspecicationsmeasuredat5~35°C,humidityat45~85%,under86~106kPapressure,unlessotherwisenoted.
SOLDERABILITY
parameter conditions/description min typ max units
reel storage atrelativehumidity<60% 30 °C
reowsoldering2seerecommendedreowsolderingprole 260 °C
drying conditions3bakeat40°Cfor24hours
Note: 2.Itisrecommendedtoreowsolderwithin48hoursfromopeningvacuumpackagingatatemperature<30°C&relativehumidity<60%.
3.Whenoutofpackagingformorethan48hours.
Peak Temp 260°C
255°C
217°C
200°C
150°C
60~180 sec60~150 sec
20~40 sec
Temperature (°C)
Time (sec)
SMT Reflow Solder Profile (Pb Free)
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date 11/22/2019 │ page 2 of 4CUI Devices │ MODEL: CMT-1270S-SMT-TR │ DESCRIPTION: MAGNETIC BUZZER TRANSDUCER
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FREQUENCY RESPONSE CURVE
MEASUREMENT METHOD
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Recommended PCB Layout
Top View
MECHANICAL DRAWING
units: mm
tolerance: ±0.5 mm
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date 11/22/2019 │ page 3 of 4CUI Devices │ MODEL: CMT-1270S-SMT-TR │ DESCRIPTION: MAGNETIC BUZZER TRANSDUCER
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PACKAGING
units: mm
Reel Size: Ø330 mm
Carton Size: 175 x 355 x 350 mm
Reel QTY: 450 pcs per reel
Carton QTY: 2,250 pcs per carton
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Lot No.
Model No.
Quantity.Pcs
Date:
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MADE IN CHINA
The label is placed on the inner
boxes and outer carton.
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date 11/22/2019 │ page 4 of 4CUI Devices │ MODEL: CMT-1270S-SMT-TR │ DESCRIPTION: MAGNETIC BUZZER TRANSDUCER
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CUI Devices oers a one (1) year limited warranty. Complete warranty information is listed on our website.
CUI Devices reserves the right to make changes to the product at any time without notice. Information provided by CUI Devices is believed to be accurate and reliable. However, no
responsibility is assumed by CUI Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI Devices products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any
component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to aect its safety or
eectiveness.
rev. description date
1.0 initial release 03/31/2016
1.01 updated datasheet 05/25/2016
1.02 added storage and drying conditions 07/31/2019
1.03 brand update 11/22/2019
The revision history provided is for informational purposes only and is believed to be accurate.
REVISION HISTORY
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