shenzhen luguang electronic technology co.,l td . 1 1. scope this specification shall cover the characte ristics of the ceramic resonator with the type ztt20.0mx. 2. p art no.: part number customer part no specification no ztt 20.0mx 3. outline drawing and dimensions: 3.1 appearance: no visible damage and dirt. 3.2 constructi on: leads are soldered on el ectrode and body is molded by resin. 3.3 dim ensions: unit mm ztt20.0mx ceramic resonato 20.0
shenzhen luguang electronic technology co.,l td . 2 4. electrical specifications: oscillation frequency fosc mhz 20.00 frequency accuracy % 0.5 resonant impedance ro ? max 40 temperature coefficient 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: parts 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% ztt20.0mx ceramic resonator
shenzhen luguang electronic technology co.,l td . 3 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 500 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 +85 5 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 ?25 5 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 shall 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 resona tor 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 260 5 for 5 1 seconds and then resonator shall be meas ured 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 235 5 for 2 0.5 sec. more than 95% of the terminal surface of the resonator shall be covered with fresh solder. ztt20.0mx ceramic resonator
shenzhen luguang electronic technology co.,l td . 4 (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 10 1 sec. 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 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 table are re ferenced to the initial measurements. 7. review of specifications when something gets doubtful with this sp ecifications, we sha ll jointly work to get an agreement. 6. physical and environmental characteristics ztt20.0mx ceramic resonator
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