1. scope this specification shall cover th e characteristics of the ceramic resonator with the type ztt4.91 mg. 2. part no.: part number customer part no specification no ztt4. 91 mg 3. outline drawing and dimensions: appearance: no visible damage and dirt. construction: leads are soldered on electrode and body is molded by resin. dimensions: ztt 4. 91mg ztt4.91mg ceramic resonator http://www.luguang.cn mail:lge@luguang.cn
4. rating and electrical specifications: 4.1 rating items content withstanding voltage (v) 50 (dc 1min) insulation resistance ri, m ? min. 100 100v 1min 4.2 electrical specifications items content oscillation frequency fosc mhz 4.91 frequency accuracy % 0.5 resonant impedance ro ? max 30 temperature coefficient of oscillation frequency % max 0.3 oscillation frequency drift -25 +85 rating voltage u r v max 6vdc 15vp-p aging rate % max 0.3 for ten years 5. measurement: measurement conditions: parts sha ll be measured under a condition ( temperature:+20 15 ,humidity:65%20% r.h.) unless the standard condition(temperature:+25 3 ,humidity 655% r.h.) is regulated to measure. test circuit: ic 1/6tc4069ubp2 x ceramic resonator c1 c2 30pf(120% ) ztt4.91mg ceramic resonator http://www.luguang.cn mail:lge@luguang.cn
6. physical and environmental characteristics no. item condition of test performance requirements 6.1 humidity subject the resonator at +40 2 and 90%~95% r.h. for 500h, resonator shall be measured after being placed in natural conditions for 1h. it shall fulfill the specifications in table 1. 6.2 high temperature exposure subject the resonator to +85 5 for 500h, resonator shall be measured after being placed in natural conditions for 1h. it shall fulfill the specifications in table 1. 6.3 low temperature exposure subject the resonator to ?25 5 for 500h, resonator shall be measured after being placed in natural conditions for 1h. it shall fulfill the specifications in table 1. 6.4 temperature cycling subject the resonator to 25 for 30 min. followed by a high temperature of +85 for 30 min. cycling shall be repeated 5 times. resonator shall be measured after being placed in natural conditions for 1h. it shall fulfill the specifications in table 1. 6.5 vibration subject the resonator to vibration for 2h each in x y and z axis with the amplitude of 1.5mm, the frequency shall be varied uniformly between the limits of 10hz~55hz and then resonator shall be measured. it shall fulfill the specifications in table 1. 6.6 mechanical shock resonator shall be measured after 3 times' random dropping from the height of 100cm on concrete floor. no visible damage and it shall fulfill the specifications in table 1. 6.7 resistance to soldering heat lead terminals are immersed up to 2 mm from resonator?s body in soldering bath of +2605 for 5s 1s and then resonator shall be measured after being placed in natural conditions for 1h it shall fulfill the specifications in table 1. 6.8 solderability lead terminals are immersed up to 2mm from resonator?s body in soldering bath of +235 5 for 2s 0.5s. more than 95% of the terminal surface of the resonator shall be covered with fresh solder. ztt4.91mg ceramic resonator http://www.luguang.cn mail:lge@luguang.cn
6. physical and environmental characteristics (continued from the preceding page) no item condition of test performance requirements 6.9 6.9.1 6.9.2 terminal strength terminal pulling terminal bending force of 5n is applied to each lead in axial direction for 10s 1s. when force of 5n is ap plied to each lead in axial direction,the lead shall folded up 90 from the axial direction and folded back to the axial direction. the speed of folding shall be each 3s. no visible damage and it shall fulfill the specifications in table 1. table 1 item specification after test oscillation frequency change fosc/fosc % max 0.3 resonant impedance ro ? max 30 note the limits in the above table are refe renced to the initi al measurements. 7. package to protect the products in storage and transportation it is necessary to pack them outer and inner package .on paper pack, the following requirements are requested. section of package package is made of corrugated paper with thickness of 0.8cm.package has 2 inner packages, each has 20 inner boxes (each box for plastic bag). quantity of package per plastic bag 500 pieces per inner box 3 plastic bags per inner package 20 inner boxes per package 2 inner packages 60000 pieces of piezoelectric ceramic part ztt4.91mg ceramic resonator http://www.luguang.cn mail:lge@luguang.cn
dimensions and mark at the end of package, the warning (moistur e proof, upward put) should be stick to it. dimensions and mark (see below) no. name quantity notes 1 inner box 40 2 box 2 3 package 1 4 adhesive tape 1.2m 5 label 1 6 belt 2.8m 7 certificate of approval 1 ztt4.91mg ceramic resonator http://www.luguang.cn mail:lge@luguang.cn
inner package unit:mm inner box dimensions pars shall be packaged in box with hold down tape upside. part no., quantity and lot no. no. name quantity notes 1 inner package 1 2 label 1 3 package tack a few no. name quantity notes 1 label 1 2 qc label 1 3 inner box 1 unit: mm ztt4.91mg ceramic resonator http://www.luguang.cn mail:lge@luguang.cn
9 other 9.1 caution of use 9.1.1 do not use this product with bend. pleas e don?t apply excess mechanical stress to the component and terminals at soldering. 9.1.2 the component may be damaged when an excess stress will be applied. 9.1.3 this specification mentions the quality of the component as a single unit. please insure the component is thoroughly evaluated in your application circuit. 9.2 notice 9.2.1 please return one of this specific ation after your signature of acceptance. 9.2.2 when something gets doubtful with this specifications, we shall jointly work to get an agreement. ztt4.91mg ceramic resonator http://www.luguang.cn mail:lge@luguang.cn
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