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參數資料
| 型號： | SM12T-32-FREQ3-20F1CE |
| 廠商： | PLETRONICS INC |
| 元件分類： | 晶體 |
| 英文描述： | QUARTZ CRYSTAL RESONATOR, 50 MHz - 80 MHz |
| 封裝： | ROHS COMPLIANT, MINIATURE, SMD, 4 PIN |
| 文件頁數： | 4/7頁 |
| 文件大小： | 150K |
| 代理商： | SM12T-32-FREQ3-20F1CE |
SM12T Series
Miniature SMD Crystal
June 2008
www.pletronics.com
425-776-1880
4
3
2
3
4
1
4
2
1
4
3
Mechanical:
Inches
mm
A
0.138 +_ 0.008
3.5 +_ 0.2
B
0.236 +_ 0.008
6.0 +_ 0.2
C
0.047 max
1.2 max
D1
0.035
0.9
E1
0.004
0.1
F1
0.059
1.5
G1
0.055
1.4
H1
0.118
3.0
Contacts :
Gold 11.8 μinches
0.3 μm minimum over
Nickel 50 to 350 μinches
1.27 to 8.89 μm
Not to Scale
1 Typical dimensions
J1
0.004
0.1
Connection (top view):
Pad 2 and Pad 4 are common and connected
to the metal cover. They are not connected to
the crystal.
Layout and application information
Trace lengths to the crystal should be kept as short as possible.
The crystal connections are sensitive to noise.
The package should be grounded for optimum performance, pad 2 and/or pad 4 connected to ground.
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