ECS-.400-12.5-13X 参数 Datasheet PDF下载

ECS-31X

SERIES

LOW FREQUENCY QUARTZ CRYSTALS

The ECS-31X Series features the same

characteristics as only tuning fork crystals

offer. Because of their miniature size they

are ideal for portable and communication

equipment applications.

FEATURES

• Miniature size

• Cost effective

• Long term stability

• Excellent shock and vibration

characteristics

• PbFree/RoHS Compliant

PART NUMBERING GUIDE

“EXAMPLE”

MANUFACTURER

ECS

ECS

ECS

–

–

–

FREQUENCY

.400

.400

2.0

–

–

–

LOAD CAPACITANCE

12.5

12.5

12.5

–

–

–

PACKAGE TYPE*

8X

13X

14X

* Package type examples (8x=3x8, 13x=2x6, 14x=1x5)

OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS

PARAMETERS

FREQUENCY RANGE

FREQUENCY TOLERANCE

FREQUENCY VS. TEMP. CHARAC.

TURNOVER TEMPERATURE

TEMPERATURE COEFFICIENT

OPERATING TEMP. RANGE

STORAGE TEMP. RANGE

EQUIVALENT SERIES RESISTANCE

LOAD CAPACITANCE

MOTIONAL CAPACITANCE

SHUNT CAPACITANCE

CAPACITANCE RATIO

DRIVE LEVEL

INSULATION RESISTANCE

AGING

(FIRST YEAR)

SHOCK RESISTANCE

fo

Δf/fo

Δ

f/f

o

Tm

ß

T

OPR

T

STG

R

1

C

L

C

1

C

0

τ

DL

IR

Δ

f/f

o

3X8X

20KHz ~ 40KHz

±30 PPM

2X6X

1X5X

30KHz ~ 150KHz

200KHz

±30 PPM

±10,000 PPM

See Drawing

-10˚C ~ +60˚C

+25˚C typ.

2

-0.034 PPM/˚C typ.

-10 ~ +60

-40 ~ +85

30 ~ 50 (max.)

10 (max.)

12.5pF typ. (Customer Specified)

1 ~ 4fF typ.

0.8 ~ 1.7pF typ.

425 ~ 800 typ.

1µW max.

500 MΩ min.

±5 PPM max.

±5 PPM max.

CONDITIONS

KHz

@ +25˚C

Varies depending on frequency

˚C

˚C

KΩ

pF

fF

pF

µW

DC 100V±15

+25˚C ± 3˚C

Conditions will vary

depending on frequency

Drop test of 3 times on a hard board from 75 cm height or shock test of 3000G x 0.3ms x 1/2 sin wave x 3 directions

PACKAGE DIMENSIONS (mm)

1.1

Ø

3.1 Max.

PARABOLIC TEMPERATURE CURVE

0.45

T (˚C)

-20 -10

0

10

20 30 40 50

-10

60

70

ø 0.35

ø 1.5 Max

ø 0.2

-20

-30

-40

8.2 Max.

Figure 1) ECS-31X-8

0.7

10

5.1 Max.

4.3

-50

-60

Figure 3) ECS-31X-14

f/f (PPM)

ø 2.1 Max

ø 0.26

To determine frequency stability, use parabolic curvature.

For example: What is the stability at 45˚C?

1) Change in T (˚C)

= 45 -25 = 20˚C

6.2 Max.

10

Figure 2) ECS-31X-13

2) Change in frequency = -0.04 PPM x (

ΔS

T)

2

= -0.04 PPM x (20)

2

= -16.0 PPM

ECS, INC. INTERNATIONAL

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

CRYSTALS

4

CRYSTALS