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參數(shù)資料
| 型號(hào)： | AT-51-4.500M-STD-PFE-2 |
| 廠商： | NIHON DEMPA KOGYO CO LTD |
| 元件分類： | 晶體 |
| 英文描述： | QUARTZ CRYSTAL RESONATOR, 4.5 MHz |
| 封裝： | ROHS COMPLIANT PACKAGE-2 |
| 文件頁(yè)數(shù)： | 1/1頁(yè) |
| 文件大?。?/td> | 99K |
| 代理商： | AT-51-4.500M-STD-PFE-2 |
Quartz Crystal Units
AT-51 / AT-51AD / AT-51CD / AT-51CD2
For Automotive
cu47_091009_AT-51_e
Nominal frequency
(MHz)
4 to 4.5
4.5 to 6
6 to 8
8 to 10
10 to 25
Equivalent Series
Resistance max. [Ω]
150
120
80
70
50
*1 Equivalent Series Resistance
AT-51
AT-51AD
AT-51CD
AT-51CD2
Pb
Free
n Specifications
n Features
When ordering our products, specify them with an “Ordering Code” that consists of the following :
--
M
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/).
Model name
Frequency (Max : 9 digits)
Number for specifying an order
n How to Specify an Order
Example AT-51-4.000M-STD-PFE-2
n Dimensions
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.
A crystal unit, ideally suited for the clock signal generating source of the
CPUs for power trains and safety control devices, requiring extremity high
reliability as part of an automobile’ s electronics system.
Highly reliable under severe environmental conditions in terms of stable start-up
characteristics, heat and heat-cycle resistance and vibration resistance.
A surface-mount crystal unit that due to the resin seating attached to the AT-51 type
crystal unit maintains high-level electrical characteristics and reliability.
AT-51AD, AT-51CD and AT-51CD2 meet the requirements for re-flow profiling using
lead-free solder.
AT-51CD2 meets the requirements for re-flow profiling using lead-free solder.
l
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
4 to 25 MHz
Fundamental
±50 × 106
±150 × 106
40 to +125 ℃
Refer to *1
50 μW (Max. 1000 μW)
16 pF
Item
Model
AT-51 / AT-51AD / AT-51CD / AT-51CD2
mm
AT-51
5.08
max
3.5
to
20±1
φ0.43
+0.05
-0.03
4.88±0.20
11.05max
10.1max
4.65max
mm
AT-51AD
11.5max
5.2
max
6.8±0.3
5.08±0.2
2.0±0.2
1.0±0.2
1.2±0.1
2.4
5.08
4.4
2.2
Land pattern (Typical)
Terminal land connections
(TOP VIEW)
11.5max
5.0max
6.8±0.3
2.0±0.2
1.2±0.2
1.0±0.2
9.0±0.3
3.5
10
1.5
mm
AT-51CD
Land pattern (Typical)
Terminal land connections
(TOP VIEW)
mm
AT-51CD2
10.1max
3.7max
0
to
0.3max
5.5±0.3
0.65±0.1
4.88±0.2
4.7
±0.1
12.4 ±0.3
11.4 ±0.2
6.0
2.0
9.0
Land pattern (Typical)
Terminal land connections
(TOP VIEW)
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