CUI CMT-1261

Date: 9/19/2006
Part No: CMT-1261
Unit: mm
Description: piezo audio transducer
Page No: 1 of 5
Specifications
Operating voltage
Current consumption
Sound pressure level
Electrostatic capacitance
Operating temperature
Storage temperature
Dimensions
Weight
Material
Terminal
RoHS
20 Vp-p max.
10 mA max.
at 10 Vp-p, square wave, 5 KHz
88 db min.
at 10 cm / 10 Vp-p, square wave, 5 KHz
15,000 pF ±30%
at 1 KHz / 1 V
-30 ~ +70° C
-40 ~ +80° C
L16.9 x W16.9 x H7.8 mm
2.6 g max.
PPS UL-94 V-0 (Black)
SMD type (Au Plating)
yes
Appearance Drawing
Tolerance: ±0.5
Suggested Pad PC B -Layout
CUI.Inc.
Phone: 800.275.4899
Fax: 503.612.2381
www.cui.com
20050 SW 112th Ave.
Tualatin, OR 97062
Date: 9/19/2006
Part No: CMT-1261
Unit: mm
Description: piezo audio transducer
Page No: 2 of 5
Typical Frequency Response Curve
Measurement Method
S.P.L. Measuring Circuit
Input Signal: 10Vp-p,5kHz, Square Wave
Mic : RION S.P.L meter UC30 or equivalent
S.G : Hewlett Packard 33120A Function Generator or equivalent
Phone: 800.275.4899
Fax: 503.612.2381
www.cui.com
20050 SW 112th Ave.
Tualatin, OR 97062
Date: 9/19/2006
Part No: CMT-1261
Unit: mm
Description: piezo audio transducer
Page No: 3 of 5
Mechanical Characteristics
Item
Solderability
Soldering Heat Resistance
Terminal Mechanical Strength
Vibration
Drop Test
Evaluation Standard
Test Condition
95% of the surface must be
Lead terminals are immersed in solder bath
covered with fresh solder.
of 270 ±5°C for 3 ±1 seconds.
No interference in operation.
The product follows the reflow temperature
curve to test its reflow thermo stability.
Lead pads should be soldered onto the pc
board and the force of 9.8N (1.0kg) should be No damage or cutting off.
applied behind the part for 10 seconds.
The buzzer should be measured after applying The value of oscillation
frequency/current consumption
a vibration amplitude of 1.5 mm with 10 to
should be within ±10% of the
55 Hz band of vibration frequency to each of
initial measurements. The SPL
the 3 perpendicular directions for 2 hours.
should be within ±10dB compared
The part will be dropped from a height of
with the initial measurement.
75 cm onto a 40 mm thick wooden board 3
times in 3 axes (X, Y, Z) for a total of 9 drops.
Environment Test
Item
High temp. test
Low temp. test
Humidity test
Temp. cycle test
Evaluation Standard
Test Condition
After being placed in a chamber at +80°C for
240 hours.
After being placed in a chamber at -40°C for
240 hours.
After being placed in a chamber at +40°C and
The buzzer will be measured after
90±5% relative humidity for 240 hours.
The part should be subjected to 5 cycles. One being placed at +25°C for 4
hours. The value of the
cycle will consist of:
oscillation frequency/current
+80℃
consumption should be within
±10% compared to the initial
measurements. The SPL should
+25℃
+25℃
be within ±10dB compared to the
initial measurements.
-40℃
0.5hr
0.5hr 0.25 0.5hr
0.5hr 0.5hr
0.25
3hours
Phone: 800.275.4899
Fax: 503.612.2381
www.cui.com
20050 SW 112th Ave.
Tualatin, OR 97062
Date: 9/19/2006
Part No: CMT-1261
Unit: mm
Description: piezo audio transducer
Page No: 4 of 5
Reliability Test
Item
Operating (Life Test)
Test Condition
1. Continuous life test:
The part will be subjected to 48 hours of
continuous operation at +55°C with rated
voltage applied.
2. Intermittent life test:
A duty cycle of 1 minute on, 1 minute off, a
minimum of 5,000 times at room temp
(+25 ±2°C) with rated voltage applied.
Evaluation Standard
The buzzer will be measured after
being placed at +25°C for 4
hours. The value of the
oscillation frequency/current
consumption should be within
±10% compared to the initial
measurements. The SPL should
be within ±10dB compared to
the initial measurements.
Test Conditions
Standard Test Condition
Judgement Test Condition
a) Tempurature: +5 ~ +35°C
a) Tempurature: +25 ±2°C
b) Humidity: 45 - 85%
b) Humidity: 60 - 70%
c) Pressure: 860-1060 mbar
c) Pressure: 860-1060 mbar
Recommended Temperature Profile for Reflow Oven
SMT Reflow Temperature Profile (Pb_Free)
Peak Temp 250°C
245°
C
15 sec Max.
217°
C
200°
C
°
C
150°C
60~180sec
60~150sec
Time [sec]
Phone: 800.275.4899
Fax: 503.612.2381
www.cui.com
20050 SW 112th Ave.
Tualatin, OR 97062
Date: 9/19/2006
Part No: CMT-1261
Unit: mm
Description: piezo audio transducer
Page No: 5 of 5
Packaging
Phone: 800.275.4899
Fax: 503.612.2381
www.cui.com
20050 SW 112th Ave.
Tualatin, OR 97062