NO. | Components | Materials |
1 | Outer Electrodes | Top and Bottom ElectrodesAg+Ni(under plating)+Sn(over plating) Side ElectrodesNi+Cu+Ag(under plating)+Sn(over plating) |
2 | Ceramic Box | Insulation Box |
3 | Cover | Dielectric Material |
4 | Glue | Epoxy Resin |
5 | Conductive Adhesive | Ag+Epoxy Resin |
6 | Base | Dielectric Material |
7 | Ceramic Element | Piezoelectric Ceramics (PZT) |
4.ELECTRICAL SPECIFICATIONS
4.1 RATING
Items | Requirement |
Withstanding Voltage (V) | 50 (DC,1min) |
Insulation Resistance Ri,(MΩ)min. | 500 (10V,1min) |
Operating temperature | -25℃~+85℃ |
Storage temperature | -55℃~+85℃ |
Rating Voltage UR(V) | 6V DC |
15V p-p |
4.2 ELECTRICAL SPECIFICATIONS
Items | Requirement |
Oscillation Frequency Fosc (MHz) | 10.000 |
Frequency Accuracy (%) | ±0.5 |
Resonant Impedance Ro (Ω)max. | 40 |
Temperature Coefficient of OscillationFrequency (%) max. | ±0.3 (Oscillation Frequency drift,-25℃~+85℃) |
Oscillation Frequency Aging Rate(10years) (%) max | ±0.2 (From initial value) |
*Components shall be left in a chamber of +85±2℃ for 1000 hours, then measured after leaving in natural condition for 1 hour.
5.TEST
5.1 Test Conditions
Parts shall be tested under the condition ( Temp.:20±15℃,Humidity :65±20%
R.H.) unless the standard condition(Temp.:25±3℃,Humidity :65±10% R.H.)
is regulated to measure.
No | Item | Condition of Test | Performance Requirements | |
6.1 | Humidity | Keep the resonator at 40℃±2℃ and 90%-95% RH for 96h. Then Release the resonator into the room Condition for 1h prior to the Measurement. | It shall fulfill the specifications in Table 1. | |
6.2 | High Temperature Exposure | Subject the resonator to 85±2℃ for 96h, then release the resonator into the room conditions for 1h prior to the measurement. | It shall fulfill the specifications in Table 1. | |
6.3 | Low Temperature Exposure | Subject the resonator to -55±2℃ for 96h, then release the resonator into the room conditions for 1h prior to the measurement. | It shall fulfill the specifications in Table 1. | |
6.4 | Temperature Cycling | After temperature cycling of blow table was performed 5 times, resonator shall be measured after being placed in natural conditions for 1h. | It shall fulfill the specifications in Table 1. | |
Temperature | Time | |||
–25±3℃ | 30±3 min | |||
85±3℃ | 30±3 min | |||
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 10 Hz—55Hz. | It shall fulfill the specifications in Table 1. | |
6.6 | Mechanical Shock | Drop the resonator randomly onto a wooden floor from the height of 100cm 3 times. | It shall fulfill the specifications in Table 1. | |
6.7
| Soldering Test | Passed through the re-flow oven under the following condition and left at room temperature for 1h before measurement. | It shall fulfill the specifications in Table 1. | |
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Table 1