SMD7.0X5.0 [LGE]
SMD Quartz Crystal Resonator; SMD石英晶体谐振器
| 型号： | SMD7.0X5.0 |
| 厂家： | 
LGE |
| 描述： | SMD Quartz Crystal Resonator |
| 文件： | 总8页 (文件大小：423K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SMD 7.0X5.0
SMD Quartz Crystal Resonator
1. QUARTZ CRYSTAL UNIT SPECIFICATION
Specifications
Symbol
Item
Remark
Min
Type
Max
Units
1. Production type
SMD Quartz Crystal Resonator
2. Holder
All Quartz
SMD 7.0X5.0
3. Mode of oscillation
4. Frequency
■ Fundamental □ 3 Overtone □ 5 Overtone
FL
CL
Tol
Rs
TR
TC
DL
C0
10.000000
MHz
5. Load capacitance
6. Frequency tolerance
7. Equivalent resistance
8. Working temperature range
9. Freq. Temp. Characteristics
10. Drive level
12
pF
at 25℃± 3℃
± 30
ppm
Ω
Max.
60
－10 ～ 60
± 30
℃
working temperature ΔF
ppm
μW
pF
100
11. Shunt Capacitance
12. Storage temperature range
13. Insulation resistance
14. Measure Circuit
15. Aging
5
-40 ～ 85
500
℃
Min.
MΩ
π network
Max.
S&A 250B
5
ppm/Yr
※ This product doesn't include harmful substance that stipulated by RoHS
SMD 7.0X5.0
SMD Quartz Crystal Resonator
2. MARKING & DIMENSIONS
2.1 DIMENSIONS (Unit: mm)
Recommended Land Pattern (Unit: mm)
2.2 INSIDE STRUCTURE
DESCRIPTION
1
2
3
4
5
Quartz Blank
Electrode
Lid
Base
Conductive adhesive
SMD 7.0X5.0
SMD Quartz Crystal Resonator
3. CHARACTERISTICS
Units and values indicated with { } in this specification are the former units and the specified values.
Standard atmospheric conditions:
Unless otherwise specified, the standard range of atmospheric conditions for making
measurements and tests is as follows:
Ambient temperature: 15℃ to 35℃
Relative humidity : 25% to 85%
Air pressure : 86 to 106 kPa
If there is any doubt about the results, measurements shall be made within the following limits:
Ambient temperature : 25℃±1℃
Relative humidity : 63% to 67%
Air pressure : 86 to 106 kPa
Operating temperature range:
The operating temperature range is the range of ambient temperatures at which the quartz crystal
oscillator can be stored without damage. Conditions are as specified elsewhere on these
specifications.
Operating temperature range: -10℃ to +60℃
Storage temperature range:
The storage temperature range is the range of ambient temperatures at which the quartz crystal
oscillator can be stored without damage. Conditions are as specified elsewhere on these
specifications.
Storage temperature range: -40℃ to +85℃
SMD 7.0X5.0
SMD Quartz Crystal Resonator
2. MARKING & DIMENSIONS
2.1 DIMENSIONS (Unit: mm)
Recommended Land Pattern (Unit: mm)
2.2 INSIDE STRUCTURE
DESCRIPTION
1
2
3
4
5
Quartz Blank
Electrode
Lid
Base
Conductive adhesive
SMD 7.0X5.0
SMD Quartz Crystal Resonator
3.2 Environmental characteristics
Provided that measurement shall be carried out after letting it alone in the room temperature for 1h.
Item
Specifications
Humidity
It alone at 40℃± 2℃ in humidity of 90~95% for 48h.
1
2
Storage in Low
Temperature
Storage in High
Temperature
Temperature
Cycle
It alone at –40℃± 2℃ for 240h.
It alone at 85℃± 2℃ for 240h.
3
4
The following temperature cycle (10 cycles). Refer to below Fig. Temperature
shift from low to high, high to low shall be done in 1℃/min.
30 min
2 min
2 min
-40+/-5
30 min
1 Cycle
*Frequency variation shall be within +/-5ppm and equivalent resistance less than ±15% max. after the test.
Note: Measuring the frequency should be done after keeping test samples at room temperature for 24 hours.
3.3 SUGGESTED IR REFLOW PROFILE
SMD 7.0X5.0
SMD Quartz Crystal Resonator
4. PACKING
1. 230mm minimum leafer which consist of carrier and tape followed by a minimum of 160mm of
empty carrier tape sealed with cover tape.
2．160mm minimum trailer of empty carrier tape sealed with cover tape.
SMD 7.0X5.0
SMD Quartz Crystal Resonator
5. Note
1. Only the lead should be heated when soldering.
In case that the package temperature is exceeding 150°C , it may impair the crystal or may
cause the crystal quartz to destroy.
2. Pulling the lead strongly may cause cracking of the hermetic grass seal bending the lead
closely from the case may also cause same problem, so when the lead needs to be bent,
please leave move than 05.mm of lead from the case.
3. Too much shock or vibration is not allowed. According to conditions such as machine shock
during the assembly, the internal quartz crystal might be damaged.
Please check your conditions carefully when using it in advance.
4. Don't storage or use in the environment that temperature may change rapidly to avoid the
condensation. And also we recommend to storage the products in the normal environment.
(Temperature, humidity)
5. This product can be subjected to ultrasonic cleaning. However, since the oscillator may be
affected depending on the condition, be sure to check it.
6. Applying excessive drive level to the quartz crystal may cause deterioration for characteristics
or damage.
Circuit design must be such as to maintain a proper drive level.
7. Unless adequate negative resistance is allocated in the oscillation circuit, startup time of
SMD 7.0X5.0
SMD Quartz Crystal Resonator
oscillation may be increased or no oscillation may occur. In order to avoid this, provide enough
negative resistance in the circuitry design.
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