NR-2C Datasheet, PDF (1/1 Pages) NIHON DEMPA KOGYO – Crystal Units For High Precision Industry

Crystal Units
NR-2C / NR-2B
n Features
A highly reliable crystal unit with outstanding frequency stability
and covering a broad frequency range.
lThe product satisfies strict temperature characteristics standards,
is shock resistant and has excellent frequency reproducibility.
For High Precision Industry
n Specifications
NR-2C
NR-2B
Pb
Free
Item
Model
NR-2C
Frequency Range
Overtone Order
Frequency Tolerance (25 ±3℃)
Temperature Characteristics (with reference to +25°C)
Operating Temperature Range
Equivalent Series Resistance
Drive Level
Load Capacitance
10 to 25MHz
Fundamental
12pF
45 to 95MHz 80 to 150MHz 10 to 25MHz
3rd overtone 5th overtone Fundamental
±10 × 10^−6
±5 × 10^−6
-10 to +60℃
Refer to *1
10μW (Max:1000μW)
Series resonance
12pF
NR-2B
25 to 75MHz
3rd overtone
50 to 100MHz
5th overtone
Refer to *2
Series resonance
*1 Equivalent Series Resistance (NR-2C)
*2 Equivalent Series Resistance (NR-2B)
Overtone
Order
Frequency (MHz)
(Range)
Equivalent Series
Resistance max.[Ω]
Overtone
Order
Frequency (MHz)
(Range)
Fundamental
10 to 25
40
3rd overtone
45 to 95
60
5th overtone
80 to 150
80
Fundamental
3rd overtone
5th overtone
10 to 25
25 to 30
30 to 75
50 to 100
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.
Equivalent Series
Resistance max.[Ω]
25
50
45
60
n 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 NR-2C-10.368M-STD-CMB-4
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
NR-2C
6.90±0.20
2.20±0.20
mm
NR-2B
6.90±0.20
2.20±0.20
mm
3.75 ±0.20
7.90max
φ0.35 ±0.05
3.20max
3.75 ±0.20
7.90max
φ0.35 ±0.05
3.20max
cu41_0418_NR-2C_e1