SM Crystal

Phone: +86 (10) 5820-3910

Fax: +86 (10) 5820-3915

Email: sales@vanlong.com

Web: http://www.vanlong.com

© 2006 by Vanlong Technology Co., Ltd.

SM7

Ceramic Surface Mount Crystal

SM7

RoHS Compliant

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.

•

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:

SM7

Frequency Range:

12 MHz ~ 45 MHz

Fundamental

36 MHz ~ 121 MHz

Overtone

All dimensions are in mm

Marking:

Line 1 : XX.XXX - Frequency in MHz (6 digit)

Line 2 : YWW - Year and Week No.

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

Circuit Condition:

6 pF ~ 50 pF or series

Equivalent Series Resistance:

Maximum resistance corresponds

to frequency. Please see ESR

table. Typically 50

Ω.

Drive Level:

10

μW Typical

Ordering Information

Shunt Capacitance:

7 pF max

Product name + CL + Operating Temperature

Range + Tolerance + Stability + Other Code +

Frequency.

i.e. SM7-20-C-10-10-F-T-16.000MHz

Frequency Stability Vs. Temperature Range

Aging:

± 2 ppm max per year

Temperature Range \ PPM

± 5

± 10

± 15

A

0

°C ~ +50°C

B

-10

°C ~ +60°C

Optional Features:

Fundamental

- F

C

-20

°C ~ +70°C

X

L

-40

°C ~ +85°C

X

X

3

- 3, 5, 7

Tape & Reel

- T

Standard

X N/A

Available Upon Request

Note:

Consult VTC Support for specific requirements.

available. Consult VTC Support if your requirement is not standard.