MLT-9018

规格书 Specificatiom 江苏华能电子有限公司 JIANGSU HUANENG ELECTRONICS CO., LTD. CUSTOMER: MODEL NO.: MLT-9018 OUR PART NO..: CUSTOMER PART NO.: CUSTOMER APPROVED CHECKED Zhangchanghua Yangshuyin Add: Chenbao Industrial Park, Chenbao Town, Xinghua,Taizhou City, Jiangsu China. 江苏省兴化市陈堡镇工业园区 Tel:+86-523-83710666 Fax:+86-523-83724866 Email: hn@huawha.com; http://www.huawha.com 江苏华能电子有限公司 JIANG SU HUANENG ELECTRONICS CO.,LTD Specification for Electro-Magnetic Buzzer (SMD Type) Model No.: MLT-9018 Part No. 1. Technical Parameter Chenbao Industrial Park, Chenbao Town, Xinghua,Taizhou City,China. Jiangsu China. Tel:+86-523-83710666 Fax:+86-523-83724866 Email: hn@huawha.com; http://www.huawha.com Des. Page 2 of 6 Chk. 4/10/2020 4/10/2020 Measuring condition Part shall be measured under a condition (Temperature: 5 ～ 35℃, Humidity: 45% ～ 85%R.H., Atmospheric pressure: 860 ～ 1060hPa) unless the standard condition (Temperature: 25±3℃, Humidity: 60±10%R.H. Atmospheric pressure: 860 ～1060hPa) is regulated to measure. 1 Rated Voltage 3Vo-p 2 Operating Voltage 1~25Vo-p 3 Rated Current Max.5mA 4 Sound Output at 10cm Min. 85dB 5 Resonant Frequency 4000Hz ±500 6 Electrostatic Capacity 1200±30％PF 7 Operating Temperature -20℃～+70℃ 8 Store Temperature -40℃～+85℃ 9 Net Weight Approx 0.5g 10 RoHS Yes 2. Dimensions Unit: mm 江苏华能电子有限公司 JIANG SU HUANENG ELECTRONICS CO.,LTD Specification for Electro-Magnetic Buzzer (SMD Type) Model No.: MLT-9018 Part No. Chenbao Industrial Park, Chenbao Town, Xinghua,Taizhou City,China. Jiangsu China. Tel:+86-523-83710666 Fax:+86-523-83724866 Email: hn@huawha.com; http://www.huawha.com Des. Page 3 of 6 Chk. 4/10/2020 4/10/2020 3. Electrical And Acoustical Measuring Condition Recommended Driving Circuit Resonant frequency, 1/2 duty cycle. Square wave. Signal amplitude should be large enough tosaturate the transistor. 4. Frequency Response 3Vo-p 50% duty Square wave,10cm Recommended Setting 江苏华能电子有限公司 JIANG SU HUANENG ELECTRONICS CO.,LTD Specification for Electro-Magnetic Buzzer (SMD Type) Model No.: MLT-9018 Part No. Chenbao Industrial Park, Chenbao Town, Xinghua,Taizhou City,China. Jiangsu China. Tel:+86-523-83710666 Fax:+86-523-83724866 Email: hn@huawha.com; http://www.huawha.com Des. Page 4 of 6 Chk. 4/10/2020 4/10/2020 5. Surface mounting condition 5.1 Reflow soldering Recommendable reflow soldering condition is as follows. Note: (1) In automated mounting of the SMD sound transducers on PCB, any bending, expanding and pulling forces or shocks against the SMD sound transducers shall be kept minimum to prevent them from electrical failures and mechanical damages of the devices. (2) In the reflow soldering, too high soldering temperatures and too large temperature Gradient such as rapid heating or cooling may cause electrical failures and mechanical damages of the devices. 江苏华能电子有限公司 JIANG SU HUANENG ELECTRONICS CO.,LTD Specification for Electro-Magnetic Buzzer (SMD Type) Model No.: MLT-9018 Part No. Chenbao Industrial Park, Chenbao Town, Xinghua,Taizhou City,China. Jiangsu China. Tel:+86-523-83710666 Fax:+86-523-83724866 Email: hn@huawha.com; http://www.huawha.com Des. Page 5 of 6 Chk. 4/10/2020 4/10/2020 6. Reliability Test After any following tests the part shall meet specifications without any degradation in appearance and performance except SPL. SPL shall not deviate more than -10 dB from the initial value 6.1 Ordinary Temperature Life Test The part shall be subjected to 96 hours at 25±10℃. Input rated voltage Resonant frequency, 1/2 duty Square wave. 6.2 High Temperature Test The part shall be capable of with standing a storage temperature of +80℃ for 96 hours. 6.3 Low Temperature Test The part shall be capable of with standing a storage temperature of -30℃ for 96 hours. 6.4 Humidity Test Temperature:+40℃±3℃ Relative Humidity:90%～95% Duration: 48 hours and expose to room temperature for 6 hours 6.5 Temperature Shock Test Temperature:60℃ /1hour→ 25℃/3hours→-20℃/1hour→ 25℃/3hours (1cycle) Total cycle: 10 cycles 6.6 Drop Test Standard Packaging From 75cm(Drop on hard wood or board of 5cm thick, three sides, six plain.) 6.7 Vibration Test Vibration:1000cycles /min. Amplitude:1.5mm, Duration: 1 hour in each 3 axes 6.8 Reflow Test Use recommendable reflow soldering condition (as shown in 5.1) (1) No abnormality should be found after reflow (2) Good soldering to meet soldering requirements Note: As this product is not protected from foreign material entering, please make sure that any foreign materials (e.g. magnetic powder, washing solvent, flux, corrosive gas) do not enter this product in your production processes. The functional degradation (e.g. SPL down) may occur if foreign material enter it.