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.
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•
•
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SM7
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)
RoHS Compliant
Specifications:
Frequency Range:
SM7
12 MHz ~ 45 MHz
Fundamental
36 MHz ~ 121 MHz
Overtone
Operating Temperature:
0°C ~ +50°C
-A
-10°C ~ +60°C
-B
-20°C ~ +70°C
-C
-40°C ~ +85°C
-L
Storage Temperature:
-55°C ~ +125°C
Frequency Tolerance:
± 50 ppm
-50
(at 25°C)
± 30 ppm
-30
± 20 ppm
-20
± 10 ppm
-10
Frequency Stability:
± 50 ppm
-50
(over temperature range)
± 30 ppm
-30
± 20 ppm
-20
± 10 ppm
-10
All dimensions are in mm
Circuit Condition:
6 pF ~ 50 pF or series
Equivalent Series Resistance:
Maximum resistance corresponds
Marking:
Line 1 : XX.XXX - Frequency in MHz (6 digit)
to frequency. Please see ESR
Line 2 : YWW - Year and Week No.
table. Typically 50Ω.
Drive Level:
10 µW Typical
Ordering Information
Shunt Capacitance:
7 pF max
Frequency Stability Vs. Temperature Range
Aging:
± 2 ppm max per year
Optional Features:
Fundamental
rd
th
th
-F
3 ,5 ,7 O.T.
- 3, 5, 7
Tape & Reel
-T
Note:
1. Other frequencies, tolerances, stabilities, and operating temperature ranges available.
Consult VTC Support for specific requirements.
2. Not all combinations of the above tolerances, stabilities, and temperature ranges are
available. Consult VTC Support if your requirement is not standard.
±5
± 10
± 15
A
0°C ~ +50°C
{
{
B
-10°C ~ +60°C
{
{
C
-20°C ~ +70°C
X
{
{
L
-40°C ~ +85°C
X
X
{
Temperature Range \ PPM
{ Standard
X N/A
Available Upon Request
Product name + CL + Operating Temperature
Range + Tolerance + Stability + Other Code +
Frequency.
i.e. SM7-20-C-10-10-F-T-16.000MHz
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: [email protected]
Web: http://www.vanlong.com
SM7