HC-49SSMD [Wing Shing]
CRYSTAL UNIT; 晶体单元
| 型号： | HC-49SSMD |
| 厂家： | 
WING SHING COMPUTER COMPONENTS |
| 描述： | CRYSTAL UNIT |
| 文件： | 总3页 (文件大小：58K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CRYSTAL UNIT
HC-49/S SMD
1. SCOPE
This specification shall cover the characteristics of crystal unit with
HC-49/S SMD 3.579545—27.00MHz
2. ELECTRICAL SPECIFICATION
ITEM
SPECIFICATION
HC-49/S SMD
HOLDER TYPE
NOMINAL FREQUENCY
LOAD CAPACITANCE
OSCILLATION MODE
3.579545—27.00MHz
10PF to series
Fundamental
FREQUENCY TOLERANCE AT 25℃±2℃
EQUIVALENT SERIES RESISTANCE
DRIVE LEVEL
±30PPM
Based on frequency
0.5MW
OPERATING TEMPERATURE RANGE
-10℃~+60℃
FREQUENCY STABILITY
±30PPM
SHUNT CAPACITANCE
AGING
INSULATION RESISTANCE
7PF max
±5PPM/YEAR
>500MΩ at DC 100V
3. Dimension (mm)
H=4.0mm
Wing Shing Computer Components Co., (H.K.)Ltd.
Homepage: http://www.wingshing.com
Tel:(852)2341 9276 Fax:(852)2797 8153
E-mail: wsccltd@hkstar.com
HC-49/S SMD
4. MECHANICAL SPECIFICATION
CRYSTAL UNIT
1) Terminal Strength
* Lead pulling test
Conditions: Load
907.2 gram
Direction
Duration of applied force
To the downward
5 seconds
Results:
There should be no distortion in appearance.
* Lead bending test
Conditions: Load
453.6 gram
Bending angle
Rate of bending
Number of bending
90°to normal position
3 seconds in each cycle
3
Results:
There should be no distortion in appearance.
2) Lead solderability test
Conditions: Dipping in solder(+230℃±5℃)for 5 seconds
Results:
More than 95% of surface being tested should be
coated uniformly with solder.
3) Vibration test
Conditions: Frequency
10 – 55Hz
0.762mm
1.0 minute
2 hours
Amplitude
Sweep
Duration
Results:
Frequency and wave form of tested products must
Remain within specifications.
4) Drop test
Conditions: Method of drop
Natural drop
Hard wood board
30cm
Dropping floor
Height
Number of drops
3 times
Results:
Frequency and wave form of tested products must
remain within specifications.
HC-49/S SMD
5. ENVIRONMENTAL SPECIFICATION
CRYSTAL UNIT
1) Temperature test
* Temperature cycling test
Conditions: Steps of cycle
1) At -55℃,30 minutes
2) At +25℃,10 - 15 minutes
3) At +85℃,30 minutes
4) At +25℃,10 - 15 minutes
3 times
Number of cycles
Results:
Frequency and wave form of tested products must
remain within specifications.
* Low Temperature test
Conditions:
Temperature
Length of test
-20℃±2℃
96 hours
Results:
There should be no stain on surface of products.
Frequency and wave form of tested products must
remain within specifications.
2) Aging test
Conditions:
Temperature
+85℃±20℃
Length of test
96 hours
Results:
Deviation of frequency must be less than ±3ppm
3) Salt spray test
Conditions:
Temperature
Length of test
NaCI %
+35℃±2℃
48 hours
5%
Results:
There should be no stain on surface of products.
4) Humidity test
Conditions: Temperature
Relative humidity
Length of test
+40℃±2℃
90 - 95%
96 hours
Results:
a. Insulation resistance must be 500 MΩ/100 Vac. minimum
b. Resistance and wave form must remain within specifications.
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