ECM Standard Surface Mount Crystal

ECM Electronics Limited, Penmaen House, Ashington, West Sussex, RH20 3JR, UK

Tel: +44(0)1903 892810: Fax: +44(0)1903 892738. Email: ecm@ecmelectronics.co.uk

Although we have attempted to accurately reflect the products we market. ECM reserve the right without prior notice to

discontinue any product or make design changes we believe necessary.

Issue 1

HC494/SMX

Dimensions in mm

Parameter

HC494/SMX

Frequency Range

3.200MHz to 50.000MHz

50.001MHz to 75.000MHz

Fund

3

Calibration Tolerance

@25

+/-50ppm standard

other options available

Specify

Temperature

Tolerance

+/-50ppm standard

other options available

Specify

Operating

Temperature

-10

other options including

-40

Specify

Storage Temp

-55

Load Capacitance

10pf to

∞ or Series

Specify

ESR

40

Ω to 200Ω

Frequency Dependant

Shunt Capacitance

7.0pf max

Drive Level

1.0mW max

Ageing

+/-3ppm First Year

§ Low Profile

§ Fast Delivery

§ Tape & Reel or Bulk Packaging

§ Highly Competitive Prices for Volume Users

§ 3.2000MHz to 75.00MHz

§ Fast Delivery

§ Custom Options Available

Standard Frequencies in MHz.

3.579545

8.192

18.432

3.6864

9.8304

19.6608

4.00

10.00

20.00

4.032

10.752

22.1184

4.096

11.0592

24.00014

4.194304

12.00

24.576

4.433619

12.288

28.224

4.9152

14.31818

29.4912

6.00

14.7456

32.00

6.144

15.36

32.768

7.3728

16.00

35.2512

7.68

16.384

40.32

8.00

16.9344

56.448

A

B

C

D

E

12.80

5.00

4.40

3.80

1.00

Environmental & Mechanical

Temperature

Cycle

MIL-STD-883C

Method 1010.7

Shock

MIL-STD-883C

Method 2002

Vibration

MIL-STD-883C

Method 2007.2

Humidity

JIS C 5021-22

Gross Leak

Test

MIL-STD-883C

Method 1014.9 Condition A

Marking

Frequency