Reference only

P.2/15

MURATA MANUFACTURING CO., LTD

SPECIFICATION for TRANSDUCER

Part Number : PKGS-25SXAP1-R

1. Scope

This product specification is applied to surface mountable acceleration sensors used for hard

disk drive in a personal computer. Please contact us when using this product for any other

applications than described in the above.

2. Part Number

2-1 Murata Part Number

: PKGS-25SXAP1-R

2-2 Customer Part Number

:

2-3 Customer Drawing Number :

3. Dimensions

3-1 Appearance

: As per paragraph 10.Appearance criteria.

3-2 Dimensions

: See Figure 2.

3-3 Construction

: A piezo ceramic element is stuck between two ceramic substrates.

4. Characteristics

(* Temperature 25

±3°C, unless otherwise noted.)

Parameter

Test Conditions

Min.

Typ.

Max.

Units

Note

4-1 Charge Sensitivity

1kHz, 98.1m/s

the direction of D axis at Fig.1

−15%

35.7

(0.350)

+15%

fC/(m/s

(pC/G)

1, 2,

4

4-2 Insulation Resistance : Ri 10V DC, after 1 min.

100

10000

M

Ω

4-3 Non-Linearity

% of the Full-Scale output at

490m/s

±50G

1%

5%

4-4 Resonance Frequency

21

27

kHz

3

4-5 Inclined Angle of

Sensitivity Axis

22

25

28

Degree

4-6 Temperature Drift

of Charge Sensitivity

Maximum deviation

from initial value at +25

°C.

70

°C

-3%

+2%

+7%

0

°C −4%

−1%

+2%

4-7 Capacitance : Co

1Vrms, 1kHz

−30%

740

+30%

pF

Note:

1. As measured with an applied acceleration in the direction of D at figure 1. In this case, positive

voltage and electrical charge are generated at electrode B.

2. 1G = 9.80665m/s

2

3. Resonance frequency of inner bimorph element.

4. f = 10

-15