Part No: CMT-1603
Description: piezo audio transducer
Date: 9/19/2006
Unit: mm
Page No: 1 of 6
Specifications
Operating voltage
Current consumption
Sound pressure level
Electrostatic capacity
Operating tempurature
Storage tempurature
Dimensions
Weight
Material
Terminal
RoHS
25 Vp-p max.
3 mA max.
at 3 Vp-p, square wave, 4.0 KHz
70 db min.
at 10 cm / 3 Vp-p, square wave, 4.0 KHz
14,000 pF ±30%
at 1 KHz / 1 V
-30 ~ +70° C
-40 ~ +85° C
L16.0 x W16.0 x H2.6 mm
0.96 g max.
LCB (White) + PCB (FR4)
Pin type (Sn Plating)
yes
Appearance Drawing
Tolerance: ±0.2
Phone: 800.275.4899
Fax: 503.612.2381
www.cui.com
20050 SW 112th Ave.
Tualatin, OR 97062
Part No: CMT-1603
Description: piezo audio transducer
Date: 9/19/2006
Unit: mm
Page No: 2 of 6
Typical Frequency Response Curve
Measurement Method
S.P.L. Measuring Circuit
Input Signal: 3 V p-p, 4.0 KHz, Square Wave
Mic: RION UC 30
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
Part No: CMT-1603
Description: piezo audio transducer
Date: 9/19/2006
Unit: mm
Page No: 3 of 6
Mechanical Characteristics
Item
Solderability
Evaluation Standard
Test Condition
95% of the surface of the lead
Lead terminals are immersed in rosin for
pads should be covered with
5 seconds and then immersed in solder bath
solder.
of 270 ±5°C for 2 ±0.5 seconds.
1) IR Reflow
Pre-heating conditions should be 150~200°C for
60 to 180 seconds. Ascending time up to
245°C should be longer than 55 seconds.
Heating conditions should be within 20 to 40
seconds at 245°C min. Peak temperature
should be lower than 255°C. The transducer
should be measured after 1 hour in normal
No interference in operation.
conditions.
2) Soldering Iron
A soldering iron of 270±5°C should be placed
0.5mm away from the electrode of the
transducer. Melted solder should be applied to
the electrode for 3±1 seconds. The transducer
should be measured after 4 hours in normal
conditions.
For 10 seconds, the force of 9.8N (1.0kg) is
applied to each terminal in axial direction.
The transducer should be subjected to a
vibration cycle of 10 to 55 Hz band of vibration
frequency for a period of 1 minute. Total peak
amplitude should be 1.5mm. The vibration test
should consist of 2 hours per axis in each axial
direction (X, Y, Z) for a total of 6 hours.
Soldering Heat Resistance
Terminal Mechanical Strength
Vibration
No damage or cutting off.
After the test, the part should
meet specifications without any
damage in appearance or
performance except for SPL. The
SPL should be within ±10dB
compared with the initial
measurement.
Phone: 800.275.4899
Fax: 503.612.2381
www.cui.com
20050 SW 112th Ave.
Tualatin, OR 97062
Part No: CMT-1603
Description: piezo audio transducer
Date: 9/19/2006
Unit: mm
Page No: 4 of 6
Environment Test
Item
High temp. test
Low temp. test
Humidity test
Temp. cycle test
Test Condition
After being placed in a chamber at +85°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
90±5% relative humidity for 240 hours.
The part shall be subjected to 5 cycles. One
cycle will consist of:
Evaluation Standard
The transducer should be
measured after being placed at
+25°C for 4 hours. The value of
the oscillation frequency/current
consumption should be ±10%
compared to the initial
measurements. The SPL should
be within ±10dB compared to the
initial measurements.
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 transducer will be measured
after being placed at +25°C for 4
hours. The value of the
oscillation frequency/current
consumption should be ±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
Phone: 800.275.4899
Fax: 503.612.2381
www.cui.com
20050 SW 112th Ave.
Tualatin, OR 97062
Part No: CMT-1603
Description: piezo audio transducer
Date: 9/19/2006
Unit: mm
Page No: 5 of 6
Recommended Temperature Profile for Reflow Oven
Note: 255°C is less than 20 seconds, but only pass the lead
free reflow once
Phone: 800.275.4899
Fax: 503.612.2381
www.cui.com
20050 SW 112th Ave.
Tualatin, OR 97062
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