15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com
PARAMETERS
CONDITIONS
HC-49UX
UNITS
MIN
TYP
MAX
Frequency
Fo
1.800
100.000
MHz
Frequency Tolerance*
@ +25°C
± 30
ppm
Frequency Stability*
-10 ~ +70°C
± 50
ppm
Shunt Capacitance
Co
7
pF
Load Capacitance
Specify in P/N
10
20
Series
pF
Drive Level
DL
1.0
mW
Operating Temperature*
Topr
-10
+70
°C
Storage Temperature
Tstg
-55
+125
°C
Aging (First Year)
@ +25°C ±3°C
±5
ppm
ECS - FREQUENCY ABBREVIATION
LOAD
CAPACITANCE
PACKAGE
AVAILABLE OPTIONS
Tolerance Stability Temp Range
PACKAGING
Frequency (MHz) ESR Ω Max.
Mode of Osc.
1.800 ~ 1.999
750
Fundamental
2.000 ~ 2.399
500
Fundamental
2.400 ~ 2.999
300
Fundamental
3.000 ~ 3.199
200
Fundamental
3.200 ~ 3.699
120
Fundamental
3.700 ~ 4.199
100
Fundamental
4.200 ~ 4.899
70
Fundamental
4.900 ~ 4.999
55
Fundamental
5.000 ~ 5.999
50
Fundamental
6.000 ~ 7.999
40
Fundamental
8.000 ~ 9.999
35
Fundamental
10.000 ~ 12.499
30
Fundamental
12.500 ~ 15.999
25
Fundamental
16.000 ~ 30.000
20
Fundamental
30.000 ~ 100.000
40
3rd Overtone
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
The HC-49UX is an “AT” cut resistance weld type Thru Hole
quartz crystal.
HC-49UX
QUARTZ CRYSTAL
HC-49UX QUARTZ CRYSTAL
• Cost Effective
• Excellent Aging
• “AT” Cut Crystal
• Wide Frequency Range
• PB Free/RoHS Compliant
• MSL 1
DIMENSIONS (mm)
PART NUMBERING GUIDE: Example ECS-200-20-1X
Figure 1) Side and Bottom
200 = 20.000 MHz
See P/N Guide
20 = 20 pF
S = Series
1X =
HC-49UX
Blank = Std
A = ± 25 ppm
J = ± 20 ppm
R = ± 15 ppm
C = ± 10 ppm
Bulk
Rev.2017
ECS
* Specify available options in P/N.
† Contact ECS for availability over extended temp range.
Blank= Std
D= ±100 ppm
E = ± 50 ppm
G = ± 30 ppm
H = ± 25 ppm
T = ± 20 ppm †
W = ±15 ppm †
K = ± 10 ppm †
Blank= Std
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
15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com
DEVELOPED FREQUENCIES
Abbreviation
Frequency (MHZ)
018
1.8432
020
2.000
020.48
2.048
024
2.4576
030
3.000
032
3.2768
035
3.579545
036
3.6864
039
3.93216
040
4.000
040.3
4.032
041
4.096
042
4.194304
044
4.433618
049
4.9152
050
5.000
051
5.0688
060
6.000
065
6.5536
073
7.3728
080
8.000
092.1
9.216
098.3
9.8304
100
10.000
110
11.000
110.5
11.0592
120
12.000
122.8
12.288
143
14.31818
147.4
14.7456
150
15.000
160
16.000
180
18.000
184
18.432
196.6
19.6608
200
20.000
221
22.1184
240
24.000
480
48.000
SOLDER PROFILE
Peak solder Temp +260°C Max 10 sec Max.
2 Cycles Max.
MSL 1, Lead Finish Sn/Cu Matte
HC-49UX
QUARTZ CRYSTAL
Figure 1) Suggested Solder Profile
