2 Lead Metal Package Quartz Crystal, 4.7 mm x 11 mm
HC49US Series
Product Features:
Low Cost Package
RoHs Compliant
Applications:
Fibre Channel
Server & Storage
Sonet /SDH
Compatible with Leadfree Processing
802.11 / Wifi
T1/E1, T3/E3
H Max.
12 Min.
Frequency
3.2 MHz to 100.000 MHz
4.88
±0.2
ESR (Equivalent Series Resistance)
3.2 MHz – 3.49 MHz
3.5 MHz – 3.99 MHz
4.0 MHz – 4.99 MHz
5.0 MHz – 5.99 MHz
6.0 MHz – 6.99 MHz
7.0 MHz – 8.9 MHz
9.0 MHz – 12.9 MHz
13 MHz – 19.9 MHz
20 MHz – 36 MHz
300 Ω Max.
200 Ω Max.
150 Ω Max.
120 Ω Max.
100 Ω Max.
80 Ω Max.
60 Ω Max.
40 Ω Max.
30 Ω Max.
100 Ω Max.
11.1 Max.
27 MHz – 100 MHz (3rd O.T.)
Shunt Capacitance (C0)
7 pF Max.
4.7 Max.
Frequency Tolerance @ 25° C
±30 ppm Standard (see Part Number Guide for more options)
±50 ppm Standard (see Part Number Guide for more options)
AT Cut Standard
Frequency Stability over
Temperature
0.43
±0.03
Crystal Cut
Load Capacitance
Drive Level
18 pF Standard (see Part Number Guide for more options)
1 mW Max.
HC49US, H Max. = 3.5
HC49US2, H Max. = 2.5
HC49US3, H Max. = 2.0
Aging
±5 ppm Max. / Year Standard
Temperature
Operating
Storage
Dimension Units: mm
0° C to +70° C Standard (see Part Number Guide for more
options)
-40° C to +85° C Standard
Part Number Guide
Sample Part Number:
HC49US - FB1F18 - 20.000
Package
Tolerance
(ppm) at Room
Temperature
B = ±50 ppm
F = ±30 ppm
G = ±25 ppm
H = ±20 ppm
I = ±15 ppm
Stability
(ppm) over Operating
Temperature
B = ±50 ppm
Operating
Mode
(overtone)
Load Capacitance
Frequency
Temperature Range
(pF)
0 = 0°C to +50°C
1 = 0°C to +70°C
2 = -10°C to +60°C
3 = -20°C to +70°C
5 = -40°C to +85°C
9 = -10°C to +50°C
F = Fundamental
3 = 3rd overtone
HC49US -
(3.5 mm H)
HC49US2 -
(2.5 mm H)
HC49US3 -
(2.0 mm H)
F = ±30 ppm
G = ±25 ppm
18 pF Standard
Or Specify
- 20.000 MHz
H = ±20 ppm
I = ±15 ppm**
J = ±10 ppm*
J = ±10 ppm**
* Not available at all frequencies. ** Not available for all temperature ranges.
ILSI America Phone: 775-851-8880 • Fax: 775-851-8882• e-mail: e-mail@ilsiamerica.com • www.ilsiamerica.com
06/09_A
Specifications subject to change without notice
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