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参数资料
| 型号： | SM40-18-FREQ8-30F1EC |
| 厂商： | PLETRONICS INC |
| 元件分类： | 晶体 |
| 英文描述： | QUARTZ CRYSTAL RESONATOR, 25 MHz - 70 MHz |
| 封装： | ROHS COMPLIANT, MINIATURE, SMD, 4 PIN |
| 文件页数： | 5/7页 |
| 文件大小： | 114K |
| 代理商： | SM40-18-FREQ8-30F1EC |
SM40 Series
Miniature SMD Crystal
December 2008
www.pletronics.com
425-776-1880
5
Mechanical (Option A):
Inches
mm
A
0.189 max
4.8 max
B
0.512 max
13.0 max
C
0.165 max
4.2 max
D
1
0.051
1.3
E
1
0.303
7.7
Not to Scale
1 Typical dimensions
F
1
0.047
1.2
Contacts : Matte Tin (Sn)
-or-
Tin over Copper (SnCu) or SAC (SnAgCu)
Mechanical (Option B):
Inches
mm
A
1
0.197 max
5.0 max
A
2
0.181
4.6
B
0.516 max
13.1 max
C
0.165 max
4.2 max
D
1
0.063
1.6
D
2
1
0.118
3.0
E
1
0.280
7.1
Not to Scale
1 Typical dimensions
F
1
0.039
1.0
Contacts : Matte Tin (Sn)
-or- Tin over Copper (SnCu) or SAC (SnAgCu)
Connection (bottom view) Pin 2 & 3 connected to metal case:
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.
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