May 16, 2007

C E R A M I C

R E S O N A T O R/F I L T E R

Application Information Request

Attention: All Customers

From: Mike Huennekens, Director of Marketing and OEM Sales

Subject: Ceramic Resonator Application Information Request

ECS is requesting that you complete the section below that will allow us to determine if the specific application is suitable for the ceramic

resonator/filters that you have requested.

Ceramic Resonators/Filters, both surface mount and through-hole type, are a much different frequency control solution than that of a crystal

based device. Not only are there “matching” issues to specific integrated circuits and processors with ceramic based piezoelectric

components but for multiple reasons ceramics are not the most advantageous nor robust frequency control solution for certain applications.

In addition, ECS does not approve the use of its ceramic products in Automotive, Military, Avionics, Life Sustaining or Life Support

systems or any other related medical application.

If the customer chooses to use this product in one or more of the noted applications without the written consent of ECS, Inc., ECS,

Inc. shall be held harmless, and given release of liability and indemnification from claims of any nature.

Please complete the following and submit this form as soon as possible.

ECS Part Number

Estimated Annual Usage

Has this part already been

approved for this application?

Yes

No

Has this part been ordered

previously for this application?

Yes

No

End Customer

Application Details

You Must Be Specific or this may

be returned for more information.

I certify that the above information is true and correct to the best of my knowledge and acknowledge that ECS will be held harmless if this

item is used in the restricted applications noted above.

__________________________________________

** If this item will be used by a 3

Company Name

a form be completed and signed by all parties.

__________________________________________

Print Your Name

__________________________________________

Title

__________________________________________

Signature

Date

To be completed by ECS Inc., International

Approved:

Disallowed:

Date: ____________________

Approved By: ______________________________________

understanding and patience in this process.

ECS, Inc. International

1105 South Ridgeview Road

Olathe, KANSAS, 66062 USA

www.ecsxtal.com

913-782-7787

1-800-237-1041

Fax: 913-782-6991

Mike Huennekens

Director of Marketing and OEM Sales

E-mail: mikeh@ecsxtal.com

Phone: 1-800-237-1041