specification of products customer product name ceramic resonator part number ztt 20 .00 mt approved by checked by drawn by
1. scope this specification shall cover th e characteristics of the ceramic resonator with the type ztt20.00mx. 2. part no.: part number customer part no specification no ztt20.00mx 3. outline drawing and dimensions: 3.1 appearance: no visible damage and dirt. 3.2 construction: leads are soldered on electrode and body is molded by resin. 3.3 dimensions: unit mm
oscillation frequency fosc mhz 20.00 frequency accuracy % 0.5 resonant impedance ro ? max 40 temperature coeffici ent of oscillation frequency % max 0.3 oscillation frequency drift -25 +85 aging rate % max 0.5 for ten years rating voltage u r v max 6vdc 15vp-p insulation resistance ri, m ? min 100 100v 1min withstanding voltage 50vdc 1min 5. measurement: 5.1 measurement conditions: part s shall be measured under a condition ( temp. 2015 ,humidity 6520% r.h.) unless the standard condition(temp. 253 ,humidity 655% r.h.) is regulated to measure. 5.2 test circuit: ic 1/6tc74hcu042 x ceramic resonator c1 c2 15pf20% 4. electrical specifications:
6. physical and environmental characteristics no item condition of test performance requirements 6.1 humidity subject the resonator at +402 and 90%-95% r.h. for 5 00 hours, resonator shall be measured after being placed in natural conditions for 1 hour. it shall fulfill the specifications in table 1. 6.2 high temperature exposure subject the resonator to +855 for 500 hours, resonator shall be measured after being placed in natural conditions for 1 hour. it shall fulfill the specifications in table 1. 6.3 low temperature exposure subject the resonator to ?255 for 500 hours, resonator shall be measured after being placed in natural conditions for 1 hour. 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 shal l be repeated 5 times. resonator shall be measured after being placed in natural conditions for 1 hour. it shall fulfill the specifications in table 1. 6.5 vibration subject the re sonator to vibration for 2 hours 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 51 seconds and then resonator shall be measured after being placed in natural conditions for 1 hour 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 2355 for 20.5 sec. more than 95% of the terminal surface of the resonator shall be covered with fresh solder.
(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 101 sec. when force of 5n is applied to each lead in axial direction,the lead shall folded up 90from the axial direction and folded back to the axial direction. the speed of folding shall be each 3 seconds. 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 refer to the initial value resonant impedance ro ? max 30 note the limits in the above tabl e are referenced to the initial measurements. 7. review of specifications when something gets doubtful with this specifications, we shall jointly work to get an agreement.
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