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ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM

SMD CRYSTALS

SMD CRYSTALS

9.0

± 0.1

1.2

± 0.1

1.3

± 0.1

(X4)

12.5 max

2.0

REF

4.85

max

H

4

1

3

2

4

1

3

2

The CSM-4AX is a SMD version of the HC-

49US leaded crystal. The CSM-4AX has a case

height of 5 mm maximum in a resistance-weld

metal package. The CSM-4AX is also pin out

compatible with the EPSON MA-506.

FEATURES

• Cost effective

• Resistance-weld sealing

• Extended Temp range available

• Tape & Reel (1,000 pcs)

• PbFree/RoHS Compliant

CSM-4AX

SMD QUARTZ CRYSTAL

PACKAGE DIMENSIONS (mm)

Figure 1) CSM-4AX- Top, Side and End views

Figure 2) CSM-4AX Internal Connections

* Tighter specifications are available. **Extended temperature range available.

OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS

PARAMETERS

CONDITIONS

MINIMUM

TYPICAL

MAXIMUM

UNITS

FREQUENCY RANGE

3.579545

70.000

MHz

CALIBRATION TOLERANCE

@ +25˚C

±30*

PPM

FREQUENCY STABILITY ref @25˚C

-10 ~ +70˚C

±50*

PPM

SHUNT CAPACITANCE

7

pF

LOAD CAPACITANCE

10

20.0 standard

Series

pF

DRIVE LEVEL

DL

500

µW

OPERATING TEMPERATURE

-10

+70

˚C

STORAGE TEMPERATURE

-30

+85

˚C

@ +25˚C ± 3˚C per year

±5

PPM

FREQUENCY RANGE (MHz)

MODE OF OSC

MAX ESR Ω

FREQUENCY RANGE (MHz)

MODE OF OSC

MAX ESR Ω

3.579545 ~ 4.999

Fundamental

200

9.000 ~ 12.000

Fundamental

60

5.000 ~ 5.999

Fundamental

150

13.000 ~ 19.999

Fundamental

40

6.000 ~ 6.999

Fundamental

100

20.000 ~ 30.000

Fundamental

30

7.000 ~ 8.999

Fundamental

80

27.000 ~ 80.000

3rd O/T

100

EQUIVALENT SERIES RESISTANCE / MODE OF OSCILLATION

2.3

3.5

2.3

9.0

2.2

2.2

Figure 3) Land Pattern

Height “H” (max.)

-28AX

5.0 mm

-28ALX

4.0 mm

MANUFACTURER

FREQUENCY (4.000 MHz)

LOAD CAPACITANCE*

PACKAGE TYPE

ECS

–

40

–

20

–

28AX

* Load capacitance (xx=xx pF, S=series resonance) Package Type examples (-28AX= 5.0 mm max. height, -28ALX = 4.0 mm max. height)

Note: See Product Selection Guide for additional options including tighter tolerances or extended temperature range.