NR-2C / NR-2B For High Precision Industry
cu48_090920_NR-2C_e
NR-2C NR-2B
10 to 25 MHz
Fundamental
12 pF
45 to 95 MHz
3rd overtone
Refer to *1
80 to 150 MHz
5th overtone
10 to 30 MHz
Fundamental
12 pF
±10 × 10−6
±5 × 10−6
−10 to +60 ℃
−40 to +85 ℃
10 μW (Max. 100 μW)
25 to 75 MHz
3rd overtone
Refer to *2
50 to 100 MHz
5th overtone
Series resonanceSeries resonance
NR-2BNR-2C
10 to 30
25 to 30
30 to 75
50 to 100
Nominal frequency
(MHz)
25
50
45
60
Equivalent Series
Resistance max. [Ω]
Fundamental
3rd overtone
5th overtone
Overtone
Order
10 to 25
45 to 95
80 to 150
Nominal frequency
(MHz)
40
60
80
Equivalent Series
Resistance max. [Ω]
Fundamental
3rd overtone
5th overtone
Overtone
Order
*1 Equivalent Series Resistance (NR-2C) *2 Equivalent Series Resistance (NR-2B)
Pb
Free
Quartz Crystal Units
n Specifications
n Features
n Dimensions
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 NR-2C-10.368M-STD-CMB-4
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.
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
Item Model
A highly reliable crystal unit with outstanding frequency stability
and covering a broad frequency range.
The product satisfies strict temperature characteristics standards,
is shock resistant and has excellent frequency reproducibility.
l
mm
NR-2B
6.90±0.20 2.20±0.20
8.00max
20min
3.75 ±0.20
7.90max
3.20max
φ0.35±0.05
mm
NR-2C
6.90±0.20
2.20±0.20
6.00max
20min
7.90max
φ0.35±0.05
3.20max
3.75 ±0.20
