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SM25 / SM30 / SM42 Series
Miniature SMD Crystal
May 2010
www.pletronics.com
425-776-1880
5
Mechanical:
Inches
mm
A
0.457 max
11.60 max
B
0.414 max
10.50 max
C
0.532 max
13.50 max
D
0.192 ± 0.008
4.88 ± 0.20
E
0.012 ± 0.004
0.30 ± 0.10
F
0.030 ± 0.008
0.75 ± 0.20
G
0.197 max
5.00 max
H
0.145 max
3.68 max
I
0.040 max
1.00 max
J
0.197 max
5.00 max
Contacts (3 types of lead plating used):
K
1
0.016
0.40
Matte Tin (Sn)
L SM42
0.182 max
4.60 max
Tin over Copper (SnCu)
L SM30
0.138 max
3.50 max
SAC (SnAgCu)
Not to Scale
L SM25
0.114 max
2.90 max
1 Typical dimensions
Layout and application information
Trace lengths to the crystal should be kept as short as possible.
The crystal connections are sensitive to noise.
Cload may need to be determined experimentally on the actual PCB.
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|---|---|
| SM250A | 制造商:UNIOHM 制造商全稱(chēng):UNIOHM 功能描述:2.0 AMP SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS |
| SM250A-E | 制造商:LRC 制造商全稱(chēng):Leshan Radio Company 功能描述:Schottky Barrier Rectifiers Reverse Voltage 20 to100V Forward Current 2.0A |
| SM250B | 制造商:BYTES 制造商全稱(chēng):Bytes 功能描述:2.0 AMP SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS |
| SM250B-E | 制造商:LRC 制造商全稱(chēng):Leshan Radio Company 功能描述:Schottky Barrier Rectifiers Reverse Voltage 20 to100V Forward Current 2.0A |
| SM250MH | 制造商:SECOS 制造商全稱(chēng):SeCoS Halbleitertechnologie GmbH 功能描述:2.0 Amp Surface Mount Schottky Barrier Rectifiers |
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