NR-2C_15 Datasheet, PDF (1/1 Pages) NIHON DEMPA KOGYO – Crystal Units For High Precision Industry

Crystal Units
NR-2C / NR-2B
■ Features
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.
For High Precision Industry
NR-2C
NR-2B
■ Specifications
Item
Model
Nominal Frequency
Overtone Order
Frequency Tolerance (25 ±3 °C)
Frequency versus Temperature
Characteristics (with reference to +25 °C)
Operating Temperature Range
Storage Temperature Range
Equivalent Series Resistance
Level of Drive
Load Capacitance
10 to 25 MHz
Fundamental
12 pF
NR-2C
45 to 95 MHz 80 to 150 MHz 10 to 30 MHz
3rd overtone 5th overtone Fundamental
±10 × 10^−6
±5 × 10^−6
−10 to +60 °C
−40 to +85 °C
Refer to *1
10 μW (Max. 100 μW)
Series resonance
12 pF
NR-2B
25 to 75 MHz 50 to 100 MHz
3rd overtone 5th overtone
Refer to *2
Series resonance
*1 Equivalent Series Resistance(NR-2C)
Overtone Order
Nominal frequency
(MHz)
Fundamental
10 to 25
3rd overtone
45 to 95
5th overtone
80 to 150
Equivalent Series
Resistance max. [Ω]
40
60
80
The above specifications are standard for this NDK product.
*2 Equivalent Series Resistance(NR-2B)
Overtone Order
Nominal frequency
(MHz)
Fundamental
10 to 30
3rd overtone
25 to 30
30 to 75
5th overtone
50 to 100
Equivalent Series
Resistance max. [Ω]
25
50
45
60
■ 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/).
■ Dimensions
NR-2C
6.90r0.20
2.20r0.20
mm
NR-2B
6.90r0.20
2.20r0.20
mm
3.75 r0.20
7.90max
φ0.35r0.05
3.20max
- 30 -
3.75 r0.20
7.90max
φ0.35r0.05
3.20max
110916_NR-2C_e