SPECIFICATION FOR PIEZO CERAMIC ELEMENT www.be-star.com TOTAL PAGE 08 Customer Model Name Customer P/N Product No. Date 04 Dec. 08 Page 01 of 08 FT-20T-3.6A1-SC Issue No. BS/TEY01.271A Issue Date 08/12/04 Approval: 1.Electrical characteristics 2.Dimension 3."Pull off"force between silver and ceramic layer 4.Notice 5.Measuring Method 6.Reliability Test 7.Packing 8.History change record Drawn by Checked by Approved by 汤浩君 沈正佑 李红元 BESTAR ELECTRONICS INDUSTRY CO.,LTD No.
6 4 5 2 3 1 FT-20T-3.6A1-SC H H 1.Electrical characteristics G G This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd. and shall not be used in whole or in part without its written content F No. Item Specification 1. Resonant Frequency 3.6± 0.3KHz 2. Resonant Impedance 500ohm max 3. Static Capacitance C:30± 20%nF 4. Insulation Resistance Min.200M ohm 5. Operating Voltage 3 - 30 Vp-p 6.
6 5 4 2 3 1 FT-20T-3.6A1-SC H H 2.Dimension G G 0.4±0.05 8.5±0.2 0.1±0.02 F E 8.5±0.2 silver electrode 11.8±0.2 This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd. and shall not be used in whole or in part without its written content 1.5 F piezoceramics E Brass D D 2.4±0.2 14.0±0.1 6.25 Ø14.2±0.3 C 7.8±0.2 C Ø20±0.05 B B 08/12/04 Date: 汤浩君 Drawn by: A Date Rev. Drawn Note Checked by: 赵 Approved by: 李红元 峥 www.be-star.
6 4 5 2 3 1 FT-20T-3.6A1-SC H H 3."Pull off"force between silver and ceramic layer Note: 3.1 Lead wire to be soldered on the silver by handsoldering at 280 10°C duration 2 0.5 sec G G 3.2.a Pull force by houizontal direction is more than 20N 3.2.b Pull force by vertical direction is more than 2.5N Lead Wire 90 Lead Wire This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd. and shall not be used in whole or in part without its written content F F FIG.
6 4 2 3 1 FT-20T-3.6A1-SC 5.Measuring Method H H 5.1.Resonant Frequency/Resonant Impedance piezoelectric diaphragm shall be clamped at a node point as shown in following figure to be free from any mechanical stress,and measured its resonant frequency and resonant impedance by using YW2788 synthesis parameter test apparatus or equivalent G G This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
5 4 2 3 1 FT-20T-3.6A1-SC H H 6. Reliability test 6.1 Life test at high temperature Temperature Duration 6.2 Life test at low temperature Temperature Duration 6.3 Temperature cycle test Cycles +20 ℃ G +80°C 96hrs -30°C 96hrs +80 ℃ +20 ℃ -30 ℃ 30min 15min G 30min 15min 6.4 Humidity cycle test Cycles F F This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
6 4 5 2 3 1 FT-20T-3.6A1-SC H H 7.Packing 7.1Packing Drawing G G products the sizes same with the tray foam cover 10PCS This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd. and shall not be used in whole or in part without its written content foam tray F F E E label info FT -20 Da T- 3. 6A tec 1-S Qu ode C : an tity XX.X :50 X 00 pc s D D 7.2 packing quantity 7.2-a 7.2-b 7.2-c 7.
6 5 4 2 3 1 FT-20T-3.6A1-SC H H 8. History change record version No. G Change Items Before Date A This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd. and shall not be used in whole or in part without its written content Drawn Approved After 汤浩君 08/12/04 G 李红元 F F E E D D C C B B A Date Rev. Drawn Note Date: 08/12/04 Drawn by: 汤浩君 Checked by: 赵 Approved by: 李红元 峥 www.be-star.com wu@be-star.com 6 5 4 3 FT-20T-3.
