XR-A (HC49) Series Resistance Weld
Crystal Resonator
XR-A (HC49) Series
Description
Vecton International’s XR-A (HC49) Series crystals provide a high reliability design in a rugged mount. These precision crystals
offer excellent performance characterisitcs and tight stabilities in a wide range of frequencies. Outstanding performance in a cost
effective industry standard package make this an ideal crystal for a wide range of applications.
Features
• Cost Effective-Volume Production Available
• Industry Standard Holder (smaller can heights available)
• AT-Cut Fundamental and OT Modes (3
rd
, 5
th
, 7
th
)
• Resistance Weld (HC49/U)
• Tight Stabilities and Tolerances, Excellent Aging
• Robust Rugged Design for harsh environments
• Surface Mount Lead Forming options available
• Swept Quartz & Hi-Rel Screening Options Available
• High Temperature Options to +200
o
C
• MIL-PRF-3098 (CR64/U, CR69/U) equivalent
Applications
• Telecommunications
• Military & Defense
• Base Station
• Medical-Test and Measurement Instrumentation
• Precision Oscillators (TCXO, VCXO, OCXO)
Note: HC43 (XR-B series for best precision/stability-Cold Weld)
Standard Physical Specifications
HEIGHT
CODE
OPTION
1
2
PACKAGE EXAMPLES
XR-A SERIES
inches
0.530
0.440
mm
13.46
11.17
Nominal dimensions specified in inches and millimeters (mm).
Specification subject to change without notice.
SURFACE MOUNT APPLICATIONS:
Special lead forming is available for surface mount applications
Vectron International • 4914 Gray Road • Cincinnati, OH 45232 • Tel: 513-542-5555 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Typical Electrical Performance Characteristics
HC49/U AT-CUT VARIETIES
Performance Characterisitc
Frequency Range
Operating Temperature Range
Frequency Stability over Operating Temp Range
Frequency Calibration Tolerance +25
o
C
Equivalent Series Resistance
Shunt Capacitance
Motional Capacitance
Load Capacitance
Drive Level
Aging per year after first 30 days
MODE
Fund.
3
rd
5
th
7
th
FREQUENCY RANGE
(MHz)
2.2 - 30 MHz
10 - 90 MHz
20 - 150 MHz
70 - 210 MHz
*ESR Typical
(ohms)
25-360
40
75
120
*C
1
Typical
(fF)
5 - 25
1 -2.5
0.70
0.35
F
T
F
R
-F
L
R (ESR)
C
0
C
1
C
L
DL
Symbol
F
O
o
o
Typical Performance Specifications
2.2 MHz to 210 MHz
-55 C to +125 C (high temperature up to +200
o
C available)
+/- 5 ppm to +/- 50 ppm (mode, frequency and operating temp range dependent)
+/- 10 ppm typical (+/- 2 ppm available)
10 ohms to 360 ohms (mode and frequency dependent)
2.5 pF - 4 pF typical
0.1 fF - 30 fF (mode and frequency dependent)
series to 32 pF (customer specified load)
100 uW (50 uW to 5 mW)
< 3 ppm (< 1ppm available)
PHASE NOISE @ 100 Hz OFFSET (dBc/Hz)
Mode - Cut
Fundamental-AT
3
rd
OT - AT
5 OT - AT
th
Frequency Range
7 MHz -to 30 MHz
17 MHz - 105 MHz
40 MHz - 175 MHz
70 MHz - 225 MHz
Phase Noise
-80 to -115
-80 to -135
-90 to -135
-90 to -125
*ESR and C1 values are dependent upon the specified frequency and mode of vibration.
7
th
OT - AT
Phase Noise performance is mode and frequency dependent
Vectron International designs and manufactures HC49 series resistance weld crystals for a wide variety of commercial and high
reliabilty applications.
Our proven processes yield excellent aging and low perturbations.
We have tight controls over series
resistance, motional capacitance, temperature characteristics and other parameters critical to your application. We primarily build
to customer specifications but we’ve optimized designs on all frequencies that are commonly used in telecommunications. Tighter
performance requirements than those shown above may be available.
Please feel free to contact us with your questions. We are here to assist you with selecting the best performing and most cost ef-
fective crystal for your application.
Typical Environmental Specifications
TEST DESCRIPTION
SHOCK
VIBRATION
TEMPERATURE CYCLE
THERMAL SHOCK
MOISTURE RESISTANCE
SALT ATMOSPHERE
ACCELERATION
SOLDERABILITY
TERMINAL STRENGTH
PIND
FINE LEAK
GROSS LEAK
RESISTANCE TO SOLVENTS
RESISTANCE TO SOLDERING HEAT
HIGH TEMPERATURE STORAGE
LOW TEMPERATURE STORAGE
SPECIFICATION REFERENCE
MIL-STD-202, Method 213, Cond. C (100g, 6ms, Half-Sine)
MIL-STD-202, Method 201/204 (Random-Sine, 20g)
MIL-STD-883, Method 1010 (-55
o
C/+125
o
C), 10 cycles
MIL-STD-202, Method 107
MIL-STD-202, Method 106
MIL-STD-202, Method 101
MIL-STD-883, Method 2001, Condition A (5,000g)
MIL-STD-202, Method 208 (ANSI-EIA-J-STD-002)
MIL-STD-202, Method 211 (2lbs)
MIL-STD-883, Method 2020, Condition A or B (20g, 10g)
MIL-STD-202, Method 112, Condition C-IIIc (1x10
-8
atm/cc
2
)
MIL-STD-202, Method 112, Condition D
MIL-STD-202, Method 215
MIL-STD-202, Method 210, Condition K
MIL-STD-883, Method 1008, Condition C (+125
o
C, 168 hours)
MIL-PRF-3098
Vectron is uniquely equipped to
handle all of your special test
requirements. All environmental
and qualification related tests are
performed in house. We’ve
demonstrated compliance and
the ability to test to the require-
ments of all governing industry
and military crystal specifications
(past and present).
Some of which include;
• MIL-PRF-3098
• MIL-C-49468
• MIL-C-3098
• TOR-2006 (8583)-5236
• EEE-INST-002
• MIL-PRF-55310
• MIL-STD-202
• MIL-STD-883
• 0THERS
Vectron International • 4914 Gray Road • Cincinnati, OH 45232 • Tel: 513-542-5555 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Additional Technical Information
Typical Wave Solder Reflow Profile (Sn-Pb)
Diagrams of Series and Parallel Resonant Circuits
Equivalent Circuit of a Crystal Resonator
For Additional Information, Please Contact
Vectron International
4914 Gray Road
Cincinnati, OH 45232
Tel: 1.513.542.5555
Fax: 1.513.542.5146
Tel: 1.888.328.7661
USA:
Vectron International
Landstrasse, D-74924
Neckarbischofsheim, Germany
Tel: +49 (0) 3328.4784.17
Fax: +49 (0) 3328.4784.30
Europe:
Vectron International
1F-2F, No 8 Workshop, No 308 Fenju Road
WaiGaoQiao Free Trade Zone
Pudong, Shanghai, China 200131
Tel: 86.21.5048.0777
Fax: 86.21.5048.1881
Asia:
Disclaimer
Vectron International reserves the right to make changes to the product(s) and or information contained herein without notice. No liability is assumed as a result of their use or application.
No rights under any patent accompany the sale of any such product(s) or information.
Rev: 12/2009
Vectron International • 4914 Gray Road • Cincinnati, OH 45232 • Tel: 513-542-5555 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
ADI Reference Circuit
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