CMT-1303 CUI | Alldatasheet

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Technical content

Part No: CMT-1303 Description: piezo audio transducer Date: 9/12/2006 Unit: mm Page No: 1 of 6 Specifications Operating voltage 25 Vp-p max. Current consumption 5 mA max. at 5 Vp-p, square wave, 4.1 KHz Sound pressure level 70 db min. at 10 cm / 5 Vp-p, square wave, 4.1 KHz Electrostatic capacitance 16,000 pF ±30% at 1 KHz / 1 V Operating temperature -20 ~ +70° C Storage temperature -30 ~ +80° C Dimensions ø12.8 x W12.8 x H2.5 mm Weight 0.5 g max. Material LCP (White) Terminal SMD Type RoHS yes Appearance Drawing Tolerance: ±0.2

Part No: CMT-1303 Description: piezo audio transducer Date: 9/12/2006 Unit: mm Page No: 2 of 6 Typical Frequency Response Curve Measurement Method S.P.L. Measuring Circuit Input Signal: 5 V p-p, 4.1 KHz, Square Wave Mic: RION UC 30 S.G.: Hewlett Packard 33120A Function Generator or equivalent

Part No: CMT-1303 Description: piezo audio transducer Date: 9/12/2006 Unit: mm Page No: 3 of 6 Mechanical Characteristics Item Test Condition Solderability Lead terminals are immersed in rosin for 5 seconds and then immersed in solder bath of 230 ±5°C for 2 ±0.5 seconds. Soldering Heat Resistance 1) IR Reflow Pre-heating conditions should be 140~160°C for 60 to 120 seconds. Ascending time up to 200°C should be longer than 30 seconds. Heating conditions should be within 10 seconds at 230°C min. Peak temperature should be 235°C. Then, place leave the buzzer in natural conditions for 1 hour before measuring. 2) Soldering Iron Soldering iron of 270 ±5°C should be placed 0.5mm above the buzzer’s electrode. Melting solder through the soldering iron should be applied to the electrode for 3±1 seconds. Then, place the buzzer in natural conditions for 4 hours before measuring. Terminal Mechanical Strength For 10 seconds, the force of 9.8N (1.0kg) is applied to each terminal in axial direction. Vibration The buzzer shall be measured after applying a vibration amplitude of 1.55 mm with 10 to

55 Hz band of vibration frequency for 1 minute

to each of the 3 perpendicular directions for 2 hours. Evaluation Standard 95% of the surface of the lead pads must be covered with fresh solder. No interference in operation. No damage or cutting off. The value of oscillation frequency/current consumption should be ±10% of the initial measurements. The SPL should be within ±10dB compared with the initial measurement.

Part No: CMT-1303 Description: piezo audio transducer Date: 9/12/2006 Unit: mm Page No: 4 of 6 Environment Test Item Test Condition High temp. test After being placed in a chamber at +80°C for 240 hours. Low temp. test After being placed in a chamber at -30°C for 240 hours. Humidity test After being placed in a chamber at +40°C and 90±5% relative humidity for 240 hours. Temp. cycle test The part shall be subjected to 5 cycles. One cycle will consist of: 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 ±10% compared to the initial measurements. The SPL should be within ±10dB compared to the initial measurements. Reliability Test Item Test Condition Operating (Life Test) 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 ±10% compared to the initial measurements. The SPL should be within ±10dB compared to the initial measurements. Test Conditions Standard Test Condition a) Tempurature: +5 ~ +35°C b) Humidity: 45 - 85% c) Pressure: 860-1060 mbar Judgement Test Condition a) Tempurature: +25 ±2°C b) Humidity: 60 - 70% c) Pressure: 860-1060 mbar

Part No: CMT-1303 Description: piezo audio transducer Date: 9/12/2006 Unit: mm Page No: 5 of 6 Recommended Temperature Profile for Reflow Oven

Part No: CMT-1303 Description: piezo audio transducer Date: 9/12/2006 Unit: mm Page No: 6 of 6 Packaging