For more information, please visit the product page. Part No: CEB-35D26 Date: 7/28/2006 Unit: mm Description: piezo electric diaphragm Page No: 1 of 4 Specifications Maximum input voltage Resonant frequency Resonant impedance Electrostatic capacitance Operating temperature Storage temperature Dimensions Weight Material Terminal DC resistance 30 Vp-p 2.6 ± 0.5 KHz 300 Ω max. 30,000 ±30% pF -20 ~ +70° C -30 ~ +80° C Ø35.0 x H0.53 mm 2.0 g max. Brass Wire type 20 M Ω min. RoHS yes see Measurement Methods see Measurement Methods at 1 KHz / 1 V Fluke 45 rate: Fast Measurement time: 1 second (only for ≤ 20 mm test) Appearance Drawing Tolerance: ±0.5 Phone: 800.275.4899 Fax: 503.612.2381 www.cui.com 20050 SW 112th Ave. Tualatin, OR 97062 For more information, please visit the product page. Part No: CEB-35D26 Date: 7/28/2006 Unit: mm Description: piezo electric diaphragm Page No: 2 of 4 Measuring Methods 1) Resonant frequency / Resonant impedance The piezo electric diaphragm should be clamped at a node point (as shown in the following figure) to be free from any mechanical stress. Measure its resonant frequency and resonant impedance by using a vector impedance analyzer or equivalent. When the input frequency is swept within 100 Hz to 5 KHz, the resonant frequency is defined as the frequency where the impedance shows minimum value. This impedance should be the resonant impedance. 2) Static capacitance The electrostatic capacitance should be measured at 120 Hz by using an L.C.R. meter (ex. HP4194A(H.P.)) or equivalent. The part should be clamped in the same way as the measurement or resonant frequency / resonant impedance mentioned above. Mechanical Characteristics Item Solderability (Connector excepted) Lead Wire Pull Strength Vibration Phone: 800.275.4899 Evaluation Standard Test Condition 90% min. of the stripped wires Stripped wires of lead wires are immersed in will be wet with solder. (Except rosin for 5 seconds and then immersed in the edge of the terminal) solder bath of 270 ±5°C for 3 ±0.5 seconds. No damage or cutting off. The horizontal force of 3.0N (0.306kg) should be applied to the double lead wire for 30 sec. The value of the resonant The diaphragm should be measured after frequency should be ±10% of the applying a vibration amplitude of 1.5 mm with 10 to 55 Hz band of vibration frequency to each initial measurements. Electrostatic capacitance should of the 3 perpendicular directions for 2 hours. be ±20% compared with the initial measurement. The SPL should be within ±10dB compared with the initial measurement. Fax: 503.612.2381 www.cui.com 20050 SW 112th Ave. Tualatin, OR 97062 For more information, please visit the product page. Date: 7/28/2006 Part No: CEB-35D26 Unit: mm Description: piezo electric diaphragm Page No: 3 of 4 Environment Test Item High temp. test Low temp. test Humidity test Temp. cycle test Test Condition After being placed in a chamber at +80°C for 240 hours. After being placed in a chamber at -30°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 diaphragm will be measured after being placed at +25°C for 4 hours. The value of the resonant frequency should be ±10%, the value of the electro static capacitance should be ±20% compared to the initial measurements. The resonant impedance should be 2,000 Ω max. Test Conditions Standard Test Condition Judgement Test Condition Phone: 800.275.4899 a) Tempurature: +5 ~ +35°C a) Tempurature: +25 ±2°C Fax: 503.612.2381 b) Humidity: 45 - 85% b) Humidity: 60 - 70% www.cui.com c) Pressure: 860-1060 mbar c) Pressure: 860-1060 mbar 20050 SW 112th Ave. Tualatin, OR 97062 For more information, please visit the product page. Part No: CEB-35D26 Date: 7/28/2006 Unit: mm Description: piezo electric diaphragm Page No: 4 of 4 Packaging Phone: 800.275.4899 Fax: 503.612.2381 www.cui.com 20050 SW 112th Ave. Tualatin, OR 97062