Surface Mount Quartz Crystal
FEATURES
•
•
•
•
Standard 5.0mm x 3.2mm Ceramic Surface Mount Package
Fundamental Crystal Design
Frequency Range 6.76438 – 50 MHz
Frequency Tolerance, ±30 ppm Standard
[other tolerances available]
[other stabilities available]
Model 405
•
Frequency Stability, ±50 ppm Standard
•
•
•
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Operating Temperature to -40°C to +85°C
Stable Frequency Over Temperature and Drive Level
Tape & Reel Packaging Standard, EIA-481-2
RoHS/Green Compliant (6/6)
APPLICATIONS
The Model 405 is a seam sealed ceramic packaged crystal offering reduced size, ideal
for high-density circuit board applications. M405 offers reliable precision and excellent shock performance suitable for
wireless communications, broadband access, WLAN/WiMax/WIFI, portable equipment, test and measurement, PCMCIA,
computers and modems.
ORDERING INFORMATION
405
OPERATING TEMPERATURE RANGE
C = -20°C to +70°C (standard)
I = -40°C to +85°C
FREQUENCY TOLERANCE @ 25°C
1 = ± 10 ppm
X = ± 15 ppm
2 = ± 20 ppm
3 = ± 30 ppm (standard)
STABILITY TOLERANCE
Over Operating Temperature Range
(Referenced to 25°C Reading)
M
FREQUENCY IN MHz
M - indicates MHz and decimal point.
LOAD CAPACITANCE
A = 10 pF
B = 13 pF
C = 16 pF
D = 18 pF
E = 20 pF
F = 24 pF
G = 30 pF
H = 32 pF
J = 9 pF
K = 8 pF
L = 12 pF
S = Series
2
1 = ± 10 ppm
X = ± 15 ppm
2 = ± 20 ppm
1
3 = ± 30 ppm
4 = ± 40 ppm
5 = ± 50 ppm (std)
Example Part Numbers:
405C35A14M31818
405I35A32M00000
Use form C052 to detail non-standard parameters.
1] Only available with temperature range code "C".
2] Frequency is recorded with two leading digits before the ‘M’ and 5 significant digits after the ‘M’ (including zeros).
[Ex. XXMXXXXX (16M38400), XXMXXXXX (14M31818)]
Not all performance combinations and frequencies may be available.
Contact your local CTS Representative or CTS Customer Service for availability.
Document No. 008-0253-0
Page 1 - 3
Rev. G
www.ctscorp.com
Low Cost Quartz Crystal
5.0mm x 3.2mm
Model 405
ELECTRICAL CHARACTERISTICS
PARAMETER
Frequency Range
Operating Mode
Crystal Cut
ELECTRICAL PARAMETERS
Frequency Tolerance @ 25°C
Frequency Stability Tolerance
[Operating Temperature Range, Referenced to 25°C Reading]
VALUE
6.76438 MHz to 50.0 MHz
Fundamental
AT-Cut
± 30 ppm standard
[± 10 ppm, ± 15 ppm and ± 20 ppm Available]
-20°C to +70°C standard
[± 10 ppm, ± 15 ppm, ± 20 ppm, ± 30 ppm and ± 40 ppm Available]
Operating Temperature Range
Equivalent Series Resistance
Load Capacitance or Resonance Mode
Shunt Capacitance (C
0
)
Drive Level
Aging @ +25°C
Storage Temperature Range
Reflow Condition, per JEDEC J-STD-020
-20°C to +70°C
-40°C to +85°C
See ESR Table
See Ordering Information
3.0 pF typical
7.0 pF maximum
10 µW typical
100 µW maximum
±3 ppm/yr typical
±5 ppm/yr maximum
-55°C to +125°C
+260°C maximum, 10 Seconds maximum
EQUIVALENT SERIES RESISTANCE TABLE
FREQUENCY RANGE
6.76438 MHz - 10.999 MHz
11.00 MHz - 20.00 MHz
20.001 MHz - 50.00 MHz
MODE of OSCILLATION
Fundamental
Fundamental
Fundamental
ESR Maximum
80 Ohms
60 Ohms
50 Ohms
MECHANICAL SPECIFICATIONS
PACKAGE DRAWING
XX.XXX
C**YWW
MARKING INFORMATION
1. XX.XXX – Frequency marked with 3 significant digits after
the decimal.
2. C – CTS and Pin 1 identifier.
3. ** - Manufacturing Site Code.
4. YWW – Date Code, Y – Last Digit of Year,
WW – Week.
5. Complete CTS part number, frequency value and date code
information must appear on reel and box labels.
NOTES
1. Complete CTS part number, frequency value and
date code information must appear on reel and carton
labels.
2. Termination pads (e4); barrier plating is nickel
(Ni) with gold (Au) flash plate.
3. Terminations #2, #4 and metal lid are connected
internally and may be connected to ground for EMI
suppression.
4. Reflow conditions per JEDEC J-STD-020, 260°C maximum.
SUGGESTED SOLDER PAD GEOMETRY
Document No. 008-0253-0
Page 2 - 3
Rev. G
Low Cost Quartz Crystal
5.0mm x 3.2mm
Model 405
PACKAGING INFORMATION
Device quantity is 1,000 pieces per 180mm reel.
DIMENSIONS IN MILLIMETERS
4.0
8.0
Ø1.50
1.75
1.95
5.40
12.0
3.5
17.5
2.0
DIRECTION OF FEED
Ø13
ENVIRONMENTAL SPECIFICATIONS
Temperature Cycle:
Mechanical Shock:
Sinusoidal Vibration:
Gross Leak:
Fine Leak:
Resistance to Solder Heat:
High Temperature Operating Bias:
Frequency Aging:
Insulation Resistance:
Moisture Sensitivity Level:
120°
400 cycles from –55°C to +125°C, 10 minute dwell at each temperature, 1 minute transfer time
between temperatures.
Ø180
Ø60
1,500g’s, 0.5mS duration, ½ sinewave, 3 shocks each direction along 3 mutually perpendicular
planes (18 total shocks).
0.06 inches double amplitude, 10 to 55 Hz and 20g’s, 55 to 2,000 Hz, 3 cycles each in 3 mutually
Ø23
perpendicular planes (9 times total).
No leak shall appear while immersed in an FC40 or equivalent liquid at +125°C for 20 seconds.
Mass spectrometer leak rates less than 2x10
-8
ATM cc/sec air equivalent.
Product must survive 3 reflows of +250°C maximum, 10 seconds maximum.
2,000 hours at +125°C, disregarding frequency shift.
1,000 hours at +85°C.
500M Ohms @ 100V
DC
±15V
DC
.
Level 1 per JEDEC J-STD-020.
Document No. 008-0253-0
Page 3 - 3
Rev. G
51单片机
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