Crystal Units
NX1255GB / NX1255GC
n
Features
A surface-mount type crystal unit, ideal for OA (office automation) and AV
(audiovisual) applications; compatible with low frequencies.
(NX1255GB : 12.0 脳 5.5 脳 2.5mm typ.)
l
Excellent electrical performance, ideal for OA and AV applications.
l
Excellent environmental characteristics, including heat and shock resistance.
l
An enriched assortment of frequencies from a low frequency of 3.5MHz.
l
Lead-free. Meets the requirements for re-flow profiling using lead-free solder.
l
NX1255GC is a low-height type (1.8mm high), and ideal for PDA applications.
For OA / AV
n
Specifications
Item
Frequency Range
Overtone Order
Frequency Tolerance (25 鹵3鈩?
Temperature Characteristics (with reference to +25擄C)
Operating Temperature Range
Equivalent Series Resistance
Drive Level
Load Capacitance
Model
NX1255GB/NX1255GC
3.5 to 26.5MHz
Fundamental
鹵50 脳 10
鈭?
鹵50 脳 10
鈭?
鈭?0 to +70鈩?/div>
Refer to *1
50渭W(Max:500渭W)
12pF
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.
n
How to Specify an Order
When ordering our products, specify them with an 鈥淥rdering Code鈥?that consists of the following :
Model name - Frequency (Max : 9 digits) M - Number for specifying an order
Example NX1255GB-3.579545M-STD-CSA-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/).
n
Dimensions
mm
11.8鹵0.15
5.5鹵0.15
*1 Equivalent Series Resistance
Frequency (MHz)
(Range)
3.5 to 4
4 to 8
8 to 12
12 to 26.5
#1
#2
Equivalent Series
Resistance max.[惟]
150
120
80
50
Internal connections(TOP VIEW)
#4
#3
NX1255GB : H=2.5鹵0.15
NX1255GC : H=1.8
+0.2
-0.1
5.08
2.0
H
Reference land pattern
#2
2.2
4.4
2.4
1.5
#1
#4
#3
5.08
cu37_071108_NX1255GB_e1