Reference only

P.13 /15

MURATA MANUFACTURING CO., LTD

12.

Caution (Application, Fail-safe)

12-1.Application Limitations

This product, the PKGS type shock sensor, has been designed for hard-disk drive applications,

used in personal computers and consumer audio-visual equipments.

Please contact Murata before using this product in the applications listed below, which require

especially high reliability for the prevention of defects which might directly cause damage to the

third party's life, body or property, or when this product is intended for use in applications other

than those specified in this data sheet. We shall not be liable for any claims on the product in

case it is used in the listed applications below, without contacting us.

(1) Cellular phone

(2) Automotive equipment other than the above mentioned

(3) Outside use equipment

(4) Aircraft, Avionics equipment

(5) Aerospace equipment

(6) Under sea equipment

(7) Power plant control equipment

(8) Medical equipment

(9) Transportation equipment (vehicles, trains, ships, etc.)

(10) Industrial equipment

(11) Traffic signal equipment

(12) Disaster prevention / crime prevention equipment

(13) Safety device / system

(14) Military equipment (regardless of direct/indirect use)

(15) Applications of similar complexity and/or reliability requirements to the applications listed

in the above.

12-2.Fail-safe

Be sure to provide an appropriate fail-safe function on your product to prevent damage that may

be caused by the abnormal function or the failure of our product.

13.

Caution (Handling)

1) This product may be degraded by electrostatic discharge. We would suggest countermeasures

against electrostatic discharge, before handling this product.

2) Please evaluate this product in your product; with it mounted to a Printed Circuit Board (PCB) or

similar. We recommend that this product not be repeatedly mounted on or removed from a PCB

by soldering, because of the possibility of degradation due to excessive heating to this product or

electrostatic discharge (in case electrostatic discharge is not guarded against).

14.

Caution (Storage condition and usage environment)

1) Maximum storage period is for 6 months under the condition of 30°C and 70%RH before PCB

mounting.

If this product is kept in an especially high humidity environment, the product may

degrade because of decreased insulation resistance value due to such conditions.

2) Please do not store and do not use this product in conditions that differ greatly from atmospheric

pressure, such as a vacuum space, a high mountain, water, and so on. A pressure cooker test is

not applicable for this product.

3) Please do not expose this product to dust, oil, corrosive gas, acid, or alkali. This product may be

degraded if exposed.

15.

Caution (Design)

1) Please use a charge amplifier circuit. This specification is only valid for use with charge amplifiers.

For instance, if you use a voltage amplifier circuit that is used with this product, we shall not be

liable for any claims.

2) Please do not apply DC bias voltage to this product, because it causes degradation of insulation

resistance value. Please try to keep minimizing the input bias current at front-end of amplifier

circuit as well.

3) Please thoroughly evaluate this product for noise immunity. Noise, coming from the product (EMI)

and/or generated by signal lines on PCB or other mechanical device (like a spindle motor), may

result in the miss-operation or the non-operation of this product.

4) Please thoroughly evaluate this product in terms of mechanically accelerated transmission system,

because this product may detect unexpected acceleration that is transmitted through PCB and/or

through the frame of your product. Mechanical resonance on your product or individual vibration

frequency of installed components/devices may create mutual interference, and it may result in

incorrect measurement by the sensor.