
FEATURES
• Standard 3.2x2.5mm Surface Mount Footprint
• Stable Frequency Over Temperature and
Drive Level
• Frequency Range 12 – 50 MHz
• Frequency Tolerance, ±30 ppm Standard
(±10 ppm, ±15 ppm and ±20 ppm available)
• Frequency Stability, ±50 ppm Standard
(±10,±15,±20,±30 and ±40 ppm available)
• Operating Temperature to –40°C to +85°C
• Tape & Reel Packaging, EIA-481-2 Compliant
• RoHS/Green Compliant (6/6)
DESCRIPTION
The Model 403 is a ceramic packaged Crystal
offering reduced size, ideal for high-density
circuit board applications. The Model 403 offers
reliable precision and excellent shock
performance in wireless telecommunication
devices.
ORDERING INFORMATION
OPERATING TEMPERATURE RANGE
C = -20°C to +70°C (standard)
I = -40°C to +85°C
403 M
FREQUENCY TOLERANCE @ 25°C
1 = ± 10 ppm
X = ± 15 ppm
2 = ± 20 ppm
3 = ± 30 ppm (standard)
STABILITY TOLERA NCE
Over Operating Temperature Range
(Referenced to 25°C Reading)
1 = ± 10 ppm **
X = ± 15 ppm
2 = ± 20 ppm
** Limited to Standard Operating Temperature Range Only;
3 = ± 30 ppm
4 = ± 40 ppm
5 = ± 50 ppm (standard)
Code C.
Not all performance combinations and frequencies may be av ailable.
Contact your local CTS Representat iv e or C TS Customer Service for availability.
Model 403
Surface Mount Quartz Crystal
FREQUENCY IN MHz
M - indicates MHz and decimal point.
Frequency is recorded with minimum 5
significant digits to the right of the "M".
LOAD CAPACITANCE
A = 10 pF
B = 13 pF
C = 16 pF
D = 18 pF
E = 20 pF
F = 24 pF
Example Part Numbers:
403C35A14M31818
403I35A32M00000
Use form C052 to detail non-standard parameters.
G = 30 pF
H = 32 pF
J = 9 pF
K = 8 pF
L = 12 pF
S = Series
Document No. 008-0288-0 Page 1 - 3 Rev. F
٠ ٠ ٠ CTS Electronic Components, Inc. ٠ 171 Covington Drive ٠ Bloomingdale, IL 60108 ٠ ٠ ٠
www.ctscorp.com ٠ ٠ ٠
٠ ٠ ٠

ELECTRICAL CHARACTERISTICS
O
EQUIVALENT SERIES RESISTANCE TABLE
erating Mode Fundamental
Cr
stal Cu
Frequency Range 12.0 MHz to 50.0 MHz
Frequency Tolerance @ 25°C
Frequency Stability Tolerance ± 50 ppm Standard
(Operating Temperature Range, Referenced to 25°C Reading) (± 10 ppm, ± 15 ppm, ± 20 ppm, ± 30 ppm and ± 40 ppm Available)
Operating Temperature Range
Agin
e Temperature Range -55°C to +125°C
Stora
Electrical Parameters
uivalent Series Resistance See ESR Table
E
Load Ca
acitance or Resonance Mode See Ordering Information
Shunt Capacitance (C
Drive Level 10 µW Typical, 100 µW Maximum
Reflow Condition,
FREQUENCY RANGE MODE of OSCILLATION ESR Maximum
12.00 MHz - 13.999 MHz Fundamental 150 Ohms
14.00 MHz - 15.999 MHz Fundamental 100 Ohms
16.00 MHz - 19.999 MHz Fundamental 80 Ohms
20.00 MHz - 50.00 MHz Fundamental 60 Ohms
PARAMETE
)
0
er JEDEC J-STD-020 +255°C ± 5°C, 10 Seconds Maximum
ALUE
AT-Cu
± 30
± 10 ppm, ± 15 ppm and ± 20 ppm Available
m Standard
-20°C to +70°C Standard
-40°C to +85°C Available
± 3 ppm/year Maximum
F Maximum
5.0
3.0 pF Typical
Model 403
3.2x2.5mm Low Cost
Surface Mount Crystal
MECHANICAL SPECIFICATIONS
PACKAGE DRAWING
( 2.50 ±0.20 )
0.098 ±0.008
( 0.80 )
0.031
MAX
( 3.20 ±0.20 )
0.126 ±0.008
XX.XX
CYWW
( 1.2 )
( 1.0 )
0.0390.047
Top View
#3#4
#2
( 0.8 )
0.031
#1
( MM )
Key:
Inch
#2
21
( 0.7 )
0.028
4
3
MARKING INFORMATION
1. XX.XX – Frequency marked with 2 significant
digits after the decimal.
2. C – CTS and Pin 1 identifier.
3. YWW – Date Code, Y – Last Digit of Year,
WW – Week.
4. Complete CTS part number, frequency value
and date code information must appear on reel
and box labels.
NOTES
1. Termination pads (e4), barrier-plating is nickel
(Ni) with gold (Au) flash plate.
2. Terminations #2, #4 and the metal lid are
connected internally. End user may connect
these pins to circuit ground.
SUGGESTED SOLDER PAD GEOMETRY
0.035 [0.90]
34
0.039 [1.00]
0.061 [1.55]
Bottom View
Document No. 008-0288-0 Page 2 - 3 Rev. F
12
[mm]
0.085 [2.15]
Key:
Inch
٠ ٠ ٠ CTS Electronic Components, Inc. ٠ 171 Covington Drive ٠ Bloomingdale, IL 60108 ٠ ٠ ٠