part no: CEB-27FD44description: piezo electric diaphragm phone: 800.275.4899 fax: 503.612.2381 www .cui.com 20050 sw 1 12th a ve. t ualatin, or 97062 date: 6/25/2007unit: mm page no: 1 of 4 s pecifications maximum input volt age 30 vp-p resonant frequency 4.5 0.5 khz see measurement methods resonant impedance 500 max. see measurement methods electrost atic cap acit ance 16,000 30% pf at 1 khz / 1 v operating temperature -20 ~ +70 c s torage temperature -30 ~ +80 c dimensions ?27.0 x h0.51 mm w eight 2.0 g max. material brass t erminal w ire type rohs yes ul 15 71 lf 32 awg bl ack blu e re d mtgep36 appearance drawing t olerance: 0.5 red wireblue wire black wire ---m---f ---g
part no: CEB-27FD44description: piezo electric diaphragm phone: 800.275.4899 fax: 503.612.2381 www .cui.com 20050 sw 1 12th a ve. t ualatin, or 97062 date: 6/25/2007unit: mm page no: 2 of 4 mechanical characteristics item t est condition solderability s tripped wires of lead wires are immersed in rosin for 5 seconds and then immersed in solder bath of 270 5c for 3 0.5 seconds. lead w ire pull s trength the horizont al force of 3.0n (0.306kg) should be applied to the double lead wire for 30 sec. v ibration the diaphragm should be measured af ter applying a vibration amplitude of 1.5 mm with 10 to 55 hz band of vibration frequency to each of the 3 perpendicular directions for 2 hours. evaluation s t andard 90% min. of the stripped wires will be wet with solder . (except the edge of the terminal)no damage or cutting of f. the value of the resonant frequency should be 10% of the initial measurement s. electrost atic cap acit ance should be 20% comp ared with the initial measurement. the resonant impedance should be 2000 max. 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 it s 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) s t atic cap acit ance the electrost atic cap acit ance should be measured at 120 hz by using an l.c.r. meter (ex. hp4194a(h.p .)) or equivalent. the p art should be clamped in the same way as the measurement or resonant frequency / resonant impedance mentioned above.
part no: CEB-27FD44description: piezo electric diaphragm phone: 800.275.4899 fax: 503.612.2381 www .cui.com 20050 sw 1 12th a ve. t ualatin, or 97062 date: 6/25/2007unit: mm page no: 3 of 4 environment t est item t est condition high temp. test af ter being placed in a chamber at +80c for 240 hours. low temp. test af ter being placed in a chamber at -30c for 240 hours. humidity test af ter being placed in a chamber at +40c and 905% relative humidity for 240 hours. t emp. cycle test the p art shall be subjected to 5 cycles. one cycle will consist of: evaluation s t andard the diaphragm will be measured af ter being placed at +25c for 4 hours. the value of the resonant frequency should be 10%, the value of the electro st atic cap acit ance should be 20% comp ared to the initial measurement s. the resonant impedance should be 2,000 max. + 80c + 25c + 25c -30c 0. 5hr 0. 5hr 0. 25 0.5hr 0. 5hr 0. 5hr 0. 25 3h our s t est conditions st andard t est condition a) t empurature: +5 ~ +35c b) humidity: 45 - 85% c) pressure: 860-1060 mbar judgement t est condition a) t empurature: +25 2c b) humidity: 60 - 70% c) pressure: 860-1060 mbar
part no: CEB-27FD44description: piezo electric diaphragm phone: 800.275.4899 fax: 503.612.2381 www .cui.com 20050 sw 1 12th a ve. t ualatin, or 97062 date: 6/25/2007unit: mm page no: 4 of 4 packaging 1. ce b- 27 fd 44 (1 0p cs ou t bo x) car ton bo x 310mmx248mmx4 9 mm 550mmx330mmx2 9 0mm out boxca rton bo x 6x50pcs=300pcs 300pc s x10= 3,000pc s 5 5 0 m m 3 3 0 m m 290mm 6x50pc s =30 0 pcs out box ou t b ox 2. ro hs comp lia nt
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