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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

CRYSTALS

CRYSTALS

ø 0.35

± 0.05

3.75

± 0.2

7.8 Max.

ø 0.35

± 0.05

3.75

± 0.2

7.8 Max.

ø 0.35

± 0.05

3.75

± 0.2

FEATURES

• Cost effective

• Excellent aging

• Wide frequency range

• Low profile

• Excellent reliability

• Tape and Reel (1,000 pcs)

ECS’s UM 1,5,4 quartz crystals are ideal for use in

compact communication equipment.

UM-1, UM-5, UM-4

QUARTZ CRYSTALS

OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS

PACKAGE DIMENSIONS (mm)

PARAMETERS

UM-1

UM-5

UM-4

FUNDAMENTAL

10.000 ~ 30.000 MHz

FREQUENCY RANGE

3RD OVERTONE

25.000 ~ 90.000 MHz

30.000 ~ 90.000 MHz

FREQUENCY TOLERANCE (@ +25˚C)

See Table 1

FREQUENCY-TEMPERATURE TOLERANCE (@ +25˚C)

See Table 2

OPERATING TEMPERATURE RANGE

See Table 2

STORAGE TEMPERATURE RANGE

-40 ~ +90˚C

LOAD CAPACITANCE

10pF – Series (Customer Specified)

SHUNT CAPACITANCE

7 pF max.

DRIVE LEVEL

500 µW max.

CRYSTAL CUT

AT-cut

FREQUENCY

±3.0

±5.0

±7.5

±10

±15

±20

±30

0 ~ +50˚C

rr

r

r

-10 ~ +60˚C

rr

q

r

-20 ~ +70˚C

rr

r

r

-30 ~ +75˚C

rr

r

-30 ~ +80˚C

rr

q

-35 ~ +80˚C

rr

-40 ~ +85˚C

rr

±10

±15

±20

±30

±50

qq

rr

r

TABLE 3 EQUIVALENT SERIES RESISTANCE / MODE OF OSCILLATION

ESR (

Ω)

NOMINAL

FREQUENCY (MHz)

MODE

UM-1

UM-5, UM-4

10 ~ 15

FUNDAMENTAL

40 max.

50 max.

15 ~ 30

FUNDAMENTAL

25 max.

30 max.

25 ~ 30

3rd

50 max.

60 max.

30 ~ 90

3rd

45 max.

60 max.

64.66

12.80

Figure 1) UM-1 Crystal Unit

Side and Bottom view

Figure 2) UM-5 Crystal Unit

Side and Bottom view

Figure 3) UM-4 Crystal Unit

Side and Bottom view

7.8 Max.

FREQUENCY (16.0000 MHz)

LOAD CAPACITANCE*

PACKAGE TYPE**

ECS

–

160

–

20

–

22

* Load capacitance (xx=xx pF, S= series resonance), ** Package Type examples (22 = UM-1, 21= UM-5, 25 = UM-4)

Note: See Product Selection Guide for additional options.