Quartz Crystal Units
cu45_110228_NX1255GB_e
NX1255GB / NX1255GC For OA / AV
A surface-mount type crystal unit, ideal for OA (ofce automation) and AV
(audiovisual) applications; compatible with low frequencies.
(NX1255GB : 11.8 × 5.5 × 2.5 mm typ.)
●Excellent electrical performance, ideal for OA and AV applications.
●Excellent environmental characteristics, including heat and shock resistance.
●An enriched assortment of frequencies from a low frequency of 3.5 MHz.
●Meets the requirements for re-ow proling using lead-free solder.
●NX1255GC is a low-height type (1.8 mm height), and ideal for PDA applications.
■ Features
Item Model NX1255GB / NX1255GC
Nominal frequency 3.5 to 26 MHz
Overtone order Fundamental
Frequency tolerance (25 ±3 °C) ±50 × 10−6
Frequency versus temperature characteristics (with reference to +25 °C) ±50 × 10−6
Operating temperature range −10 to +70 °C
Storage temperature range −40 to +85 °C
Equivalent series resistance Refer to *1
Level of drive 50 μW (Max. 500 μW)
Load capacitance 12 pF
The above specications are standard for this NDK product.
Custom-made specications such as load capacitance and temperature characteristics are also available.
Please contact NDK sales with your enquiries.
■ Specications
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 NX1255GB-8.000M-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/).
■ How to Specify an Order
mm
5.08
2.0
5.08
2.4
2.2
4.4
#4 #3
#4 #3
#1 #2
#1 #2
5.5±0.15
H
1.5
11.8±0.15
NX1255GB : H=2.5±0.15
NX1255GC : H=1.8 +0.2
-0.1
Land pattern (Typical)
Terminal land connections
(TOP VIEW)
■ Dimensions
*1 Equivalent Series Resistance
Nominal frequency
(MHz)
Equivalent Series
Resistance max. [Ω]
3.5 to 4 150
4 to 8 120
8 to 12 80
12 to 26 50
