CM309S

CM309S
(1,000pcs/reel)

FEATURES:
Being of the miniature SMD type and featuring high efficiency in mounting, the CM309S is ideal for application to high-density circuit boards.
As it incorporates a heat-resisting packaged cylinder-type crystal, this crystal makes best use of the superb characteristic AT-cut crystals have, and permits reflow soldering.
Enables automatic mounting, due to the adoption of the emboss taping packaging.

APPLICATIONS:
Can be used for a wide range of applications including use in communication equipment, AV equipment, OA equipment and measuring instruments.

DIMENSIONS: (UNIT=mm)

RECOMENDED PATTERNING: (UNIT=mm)

STANDARD SPECIFICATIONS

Item		CM309S	Conditions
Nominal frequency	f0	3.5MHz to 32MHz(fund), 30MHz to 70MHz(3rd OT)	Please contact us for changes in frequency.
Frequency tolerance	deltaf/f0	± 30ppm or ± 50ppm	(25°C)Reference temperature
Frequency vs.Temperature Characteristics	deltaf/f0	± 30ppm or ± 50ppm	-10°C to +60°C
Operating temperature range	Topr	-40°C to +85°C
Storage temperature range	Tstg	-55°C to +125°C	Store by one unit
Equivalent series resistance	R1	See drawing	at 25°C
Load capacitance	CL	16.0pF TYP.	Please specify
Shunt capacitance	C0	7.0pF MAX.
Drive level	DL	50 µ W to 100 µ W
Insulation resistane	IR	500M ohm MIN.	DC100V ± 15V
Aging (First year)	deltaf/f0	± 5ppm MAX.	25°C ± 3°C
Sealing		1 x 10-2 µ Pa·m3 /s MAX.
Shock resistance	±5ppm MAX. Drop test of 3 times on a hard board from 75cm height or shock test of 3000G x 0.3ms x 1/2sin wave x 3 directions		Condition will vary depending on the frequency.

EQUIVALENT SERIES RESISTANCE (ESR, R1)(Ohm MAX.)

Frequency	Equivalent series resistance	Mode
3.5MHz <(=) f0 < 4MHz	200	Fundamental
4MHz <(=) f0 < 6MHz	150
6MHz <(=) f0 < 10MHz	100
10MHz <(=) f0 < (=)32MHz	50
30MHz < f0 < 36MHz	100	3rd OT
36MHz <(=) f0 < 70MHz	80	3rd OT

Comtec Crystals GmbH Sultenstrasse 12-14 · 85586 Poing · Germany Tel: +49-8121-77 81 60 · Fax: +49-8121-77 81 77 E-Mail: info@comtec-crystals.com	Comtec Crystals SARL 23, rue du Faucon · 67500 Haguenau · France Tel: +33 3.88.73.21.62 · Fax: +33 3.88.73.01.18 E-Mail: sales@comtec-crystals.com
Web: http://www.comtec-crystals.com