Quartz Crystal Units
NX3225SC
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Features
A small surface-mount type crystal unit, ideal for the special requirements of
automotive, such as TPMS (Tire Pressure Monitoring System). The crystal unit is
ideally suited for the clock signal generating source of the transmission unit in a tire
wheel that is subject to strong centrifugal force.
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Ultra-compact and thin. (3.2 x 2.5 x 0.6 mm typ.)
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Stable frequency characteristics even with a powerful centrifugal force of 2,000 G,
as found in the transmission side of TPMS applications.
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High resistance to solder cracking.
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Excellent environmental characteristics, including heat, vibration and shock resistance.
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Lead-free. Meets the requirements for re-flow profiling using lead-free solder.
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Conforms to AEC-Q200.
For Automotive
Pb
Free
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Specifications
Item
Nominal frequency
Overtone order
Frequency tolerance (25 ±3 ℃)
Frequency versus temperature characteristics (with reference to +25 °C)
Operating temperature range
Storage temperature range
Equivalent series resistance
Level of drive
Load capacitance
The above specifications are standard for this NDK product.
Custom-made specifications such as load capacitance and temperature characteristics are also available.
Please contact NDK sales with your enquiries.
Model
NX3225SC
9.84375 to 50 MHz
Fundamental
±15 × 10
−6
±50 × 10
−6
−40 to +125 ℃
−40 to +125 ℃
Refer to *1
10 μW (Max. 200 μW)
8 pF
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How to Specify an Order
When ordering our products, specify them with an “Ordering Code” that consists of the following :
Model name - Frequency (Max : 9 digits) M - Number for specifying an order
Example NX3225SC-9.84375M-STD-CRS-1
If you have any queries concerning our standard frequencies and numbers for specifying orders, please contact our sales representatives or visit our homepage
(http://www.ndk.com/).
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Dimensions
mm
3.2±0.1
*1 Equivalent Series Resistance
Nominal frequency
(MHz)
9.84375 to 12
12 to 20
20 to 50
Equivalent Series
Resistance max. [Ω]
300
120
100
Terminal land connections
(TOP VIEW)
#4
#3
2.5±0.1
#1
0.6±0.1
#2
*#2 and #4 are connected with a cover.
(Please connect with a GND.)
Land pattern (Typical)
#1
0.9
#2
C0.30
1.2
1.4
#4 1.0
1.2
1.0
#3
2.2
1.6
0.9 0.7
cu31_091009_NX3225SC_e
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