SM Crystal
Ceramic Surface Mount Crystal
The SM7 series incorporates a sub-miniature AT-cut strip crystal
resonator housed in a miniature 5.0x3.2x0.9mm ceramic package.
These compact crystals are ideal for surface mount,
densely-populated PCB applications.
•
•
•
•
•
SM7
RoHS Compliant
Rugged AT-cut crystal construction
Ultra miniature for maximum spacing saving
Ideally suited for disc driver, PCMCIA, PC’S and hand-held
products
Tight specifications available
Complies with Directive 2002/95/EC (RoHS Compliant)
Specifications:
Frequency Range:
12 MHz ~ 45 MHz
36 MHz ~ 121 MHz
Operating Temperature:
0°C ~ +50°C
-10°C ~ +60°C
-20°C ~ +70°C
-40°C ~ +85°C
Storage Temperature:
Frequency Tolerance:
(at 25°C)
-55°C ~ +125°C
±
50 ppm
±
30 ppm
±
20 ppm
±
10 ppm
Frequency Stability:
(over temperature range)
±
50 ppm
±
30 ppm
±
20 ppm
±
10 ppm
Circuit Condition:
Equivalent Series Resistance:
-50
-30
-20
-10
-50
-30
-20
-10
Fundamental
Overtone
-A
-B
-C
-L
SM7
All dimensions are in mm
6 pF ~ 50 pF or series
Maximum resistance corresponds
to frequency. Please see ESR
table. Typically 50Ω.
Marking:
Line 1 : XX.XXX - Frequency in MHz (6 digit)
Line 2 : YWW - Year and Week No.
Drive Level:
Shunt Capacitance:
Aging:
Optional Features:
10
µW
Typical
7 pF max
±
2 ppm max per year
Fundamental
3
rd
,5
th
,7
th
O.T.
Tape & Reel
-F
- 3, 5, 7
-T
Ordering Information
Frequency Stability Vs. Temperature Range
Temperature Range \ PPM
A
B
C
L
Standard
0°C ~ +50°C
-10°C ~ +60°C
-20°C ~ +70°C
-40°C ~ +85°C
X N/A
X
X
X
±
5
±
10
±
15
Available Upon Request
Note:
1.
Other frequencies, tolerances, stabilities, and operating temperature ranges available.
Consult VTC Support for specific requirements.
Product name + CL + Operating Temperature
Range + Tolerance + Stability + Other Code +
Frequency.
i.e. SM7-20-C-10-10-F-T-16.000MHz
2.
Not all combinations of the above tolerances, stabilities, and temperature ranges are
available. Consult VTC Support if your requirement is not standard.
3.
All specifications subject to change without notice.
Phone: +86 (10) 5820-3910
©
2006 by Vanlong Technology Co., Ltd.
Fax: +86 (10) 5820-3915
Email: sales@vanlong.com
Web: http://www.vanlong.com
SM7
VANLONG [ VANLONG TECHNOLOGY CO., LTD. ]
