HC-49USX
The HC-49USX is the low profile resistance weld type Thru Hole
quartz crystal.
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OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
HC-49USX QUARTZ CRYSTAL
PARAMETERS
CONDITIONS
HC-49USX
TYP
UNITS
MIN
MAX
70.000
± 30
± 50
7
Frequency
Fo
@ +25°C
-10 ~ +70°C
Co
3.570
MHz
ppm
ppm
pF
Frequency Tolerance*
Frequency Stability*
Shunt Capacitance
Load Capacitance
Drive Level
Specify in P/N
DL
10
20
Series
500
pF
μW
°C
• Cost Effective
• Low Profile
• Pb Free/RoHS Compliant
• MSL 1
Operating Temperature*
Storage Temperature
Aging (First Year)
Topr
-10
-55
+70
Tstg
+125
±5
°C
@ +25°C ±3°C
ppm
Frequency (MHz)
3.570 ~ 3.999
4.000 ~ 4.999
5.000 ~ 5.999
6.000 ~ 6.999
7.000 ~ 8.999
9.000 ~ 12.999
13.000 ~ 19.999
20.000 ~ 30.000
27.000 ~ 70.000
ESR Ω Max.
Mode of Osc.
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
3rd Overtone
DIMENSIONS (mm)
200
150
120
100
80
60
40
30
100
Figure 2) HC-49USX (-4X-3IL) 3rd In Line Lead
Base, Side, and End View
Figure 1) Side and Bottom
PART NUMBERING GUIDE:
Example ECS-200-20-4X
ECS - FREQUENCY ABBREVIATION
LOAD
PACKAGE
AVAILABLE OPTIONS
Stability Temp Range
PACKAGING
Tolerance
CAPACITANCE
Blank= Std
Blank = Std
Blank= Std
Bulk
4X = 3.5 mm
4LX = 2.5 mm
4X-3IL = 3rd
20 = 20 pF
S = Series
200 = 20.000 MHz
See P/N Guide
ECS
L = -10 ~ +70°C
M = -20 ~ +70°C
Y = -30 ~ +85°C
N = -40 ~ +85°C
P = -40 ~ +105°C
S = -40 ~ +125°C
U = -55 ~ +125°C
A = ± 25 ppm
J = ± 20 ppm
R = ± 15 ppm
C = ± 10 ppm
D= ±100 ppm
E = ± 50 ppm
G = ± 30 ppm
H = ± 25 ppm
T = ± 20 ppm †
W = ±15 ppm †
K = ± 10 ppm †
In Line Lead Base
* Specify available options in P/N.
† Contact ECS for availability over extended temp range.
Rev.2017
15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com