2 Lead Metal Package Quartz Crystal, 4.7 mm x 11 mm HC49US Series
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
Page 1
0.43
±0.03
4.7 Max.
11.1 Max.
4.88
±0.2
12 Min.
H Max.
HC49US, H Max. = 3.5
HC49US2, H Max. = 2.5
HC49US3, H Max. = 2.0
Dimension Units: mm
Product Features: Applications:
Low Cost Package Fibre Channel
RoHs Compliant Server & Storage
Compatible with Leadfree Processing Sonet /SDH
802.11 / Wifi
T1/E1, T3/E3
* Not available at all frequencies. ** Not available for all temperature ranges.
Frequency 3.2 MHz to 100.000 MHz
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
27 MHz – 100 MHz (3
rd
O.T.)
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.
Shunt Capacitance (C0) 7 pF Max.
Frequency Tolerance @ 25° C ±30 ppm Standard (see Part Number Guide for more options)
Frequency Stability over
Temperature
±50 ppm Standard (see Part Number Guide for more options)
Crystal Cut AT Cut Standard
Load Capacitance 18 pF Standard (see Part Number Guide for more options)
Drive Level 1 mW Max.
Aging
±5 ppm Max. / Year Standard
Temperature
Operating
0° C to +70° C Standard (see Part Number Guide for more
options)
Storage
-40° C to +85° C Standard
Part Number Guide Sample Part Number: HC49US - FB1F18 - 20.000
Package Tolerance
(ppm) at Roo m
Temperature
Stability
(ppm) over Operating
Temperature
Operating
Temperature Range
Mode
(overtone)
Load Capacitance
(pF)
Frequency
HC49US -
(3.5 mm H)
HC49US2 -
(2.5 mm H)
HC49US3 -
(2.0 mm H)
B = ±50 ppm B = ±50 ppm 0 = 0°C to +50°C F = Fundamental
18 pF Standard
Or Specify
- 20.000 MHz
F = ±30 ppm F = ±30 ppm 1 = 0°C to +70°C 3 = 3
rd
overtone
G = ±25 ppm G = ±25 ppm 2 = -10°C to +60°C
H = ±20 ppm H = ±20 ppm 3 = -20°C to +70°C
I = ±15 ppm I = ±15 ppm** 5 = -40°C to +85°C
J = ±10 ppm* J = ±10 ppm** 9 = -10°C to +50°C
