Reference only
P.1/15
Product Specification for Reference Only
Issued Date:
Rev. :
Jun. 05, 2013
2
Part Description:
SHOCK
SENSOR
MURATA Part No.:
PKGS-25SXAP1-R
The product specification in this sheet is for reference only.
The contents of this specification are subject to change.
You are requested to receive the latest specification and to return one
copy of the specification to us with your receipt signature before going
into mass production.
Product engineering section
Sensor Products Department
Sensor Products Division
Murata MFG. Co.,Ltd.
Approved by
Issued by
Issued Date
Drawing No.
H. Kita
T. Kawamoto
Nov. 1, 2010
Reference only
MURATA MANUFACTURING CO., LTD
Reference only
SPECIFICATION for TRANSDUCER
Part Number : PKGS-25SXAP1-R
P.2/15
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
3-2 Dimensions
3-3 Construction
4. Characteristics
(* Temperature 25±3°C, unless otherwise noted.)
Parameter
4-1 Charge Sensitivity
4-2
4-3
4-4
4-5
4-6
Test Conditions
Min.
Typ.
35.7
(0.350)
10000
1%
27
25
+2%
−1%
740
28
+7%
+2%
+30%
pF
Max.
+15%
Units
Note
: As per paragraph 10.Appearance criteria.
: See Figure 2.
: A piezo ceramic element is stuck between two ceramic substrates.
1kHz, 98.1m/s
2
(10G) applied in
−15%
the direction of D axis at Fig.1
Insulation Resistance : Ri 10V DC, after 1 min.
100
Non-Linearity
% of the Full-Scale output at
490m/s
2
(50G). Range :
±50G
Resonance Frequency
21
Inclined Angle of
22
Sensitivity Axis
Temperature Drift
Maximum deviation
70°C -3%
of Charge Sensitivity
from initial value at +25°C.
0°C
−4%
−30%
fC/(m/s
2
) 1, 2,
(pC/G) 4
MΩ
5%
kHz
Degree
3
4-7 Capacitance : Co
1Vrms, 1kHz
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
MURATA MANUFACTURING CO., LTD
Reference only
P.3/15
Z
D
Y
25±1°
Electrode A
Polarity marking
X
Electrode B
Figure 1.
Axis D : This axis is an acceleration applied direction, when charge sensitivity is checked.
5. Standard land pattern
Land pattern
1.3
1.6
1.3
6. Absolute Rating
Apply voltage between electrode A and B : 10 Vp-p within 60 sec. max.
Storage temperature range
: -40 to 85
°C
Operating temperature range
: -40 to 85
°C
MURATA MANUFACTURING CO., LTD
2.0
Unit : mm
Reference only
7. Physical Characteristics
P.4/15
Test Item
7-1 Mechanical
Shock
Condition of Test
Performance Requirements
The transducer shall be measured after being No visible damage and the
applied three impacts in plus and minus measured values shall meet
directions of three mutually perpendicular Table 2.
planes.
The shock is specified as 29400m/s
2
(3000G)
half sine pulse of 0.3 ms duration.
The transducer shall be measured after being
applied vibration of amplitude of 1.5 mm with 10
to 55 Hz band of vibration frequency to each of 3
perpendicular directions for 2 hours.
( 5 minutes
×
24 cycles )
7-2 Vibration
7-3 Bend Strength The transducer is soldered onto the center of No visible damage and the
PCB
PCB (1.6 mm thickness) which is laid on the 2 measured values shall meet
small supporters spaced 90 mm.
Table 3.
PCB is deflected to 1 mm below from horizontal
level by the pressing force with 20
×
10. R10
stick. The force is supplied for 1 second, 5 times
repeatably.
Stick
20 10
Load
PCB
Deflection
Part
45
±1
off-Center
45
R10
φ
5 Supporter
Unit: mm
7-4 Resistance to The transducer shall be mounted on PCB, then No visible damage and the
Reflow
measured after being applied following reflow measured values shall meet
Soldering
conditions.
Table 2.
<Test flow>
Pre-heating :
60 to 150 sec. at 150 to 180
°C
Heating :
Within 60 sec. at 200
°C
(or more)
Within 30 sec. at 250
°C
(or more)
Peak Temperature:
Within 10 sec. at 260
°C
Shock sensor should be tested 2 times of this
test flow.
PCB size : 115
×
80
×
0.8 mm
After being placed at ambient conditions for 8
hours, the transducer shall be measured.
7-5 Solderability
End terminals are immersed in rosin for
75% min. end terminals shall
5 seconds then immersed in soldering bath of be wet with solder.
+230±5°C for 3±0.5 seconds.
See Table 1.
No visible damage and the
measured values shall meet
Table 2.
7-6 Washability
MURATA MANUFACTURING CO., LTD
1
Reference only
Table 1. Wash
Cleaning
Solvent
Item
Alcohol
(Iso-propanol)
Water
(Tap water,
Demineralized
water)
P.5/15
Cleaning Water
Silicon
Solution
(Techno care FRW)
(Cleanthrough
750H, Pine alpha
100S )
Temperature
Difference:dT *1
dT<100°C
[dT
=
Component
- solvent]
Condition
(1) Ultrasonic
1 minute max. in above solvent at 60°C max.
Wash
( Frequency : 28 kHz, Output : 20 W/L )
(2) Immersion
5 minutes max. in above solvent at 60°C max.
Wash
(3) Shower or
5 minutes max. in above solvent at 60°C max.
Rinse Wash
(4) Drying
1 to 5 minutes. by air blow at 80°C max.
*1 ex. In case the component at 90°C immerses into cleaning solvent at 60°C,
then dT = 30°C.
Note(Wash)
1. Please insure the component is thoroughly evaluated in your application circuit.
2. The component may be damaged if it is washed with alkali cleaning solvent.
3. Flux should be washed out before use.
MURATA MANUFACTURING CO., LTD
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