32.768KHz SMD Package
0.126 ±0.004
(3.2 ±0.1)
Internal Connection
0.059 ±0.004
(1.5 ±0.1)
C153-SMD Model
Crystal package to meet today's demand for pick and
place processing. Available on tape and reel in
quantities of 3K for SMT placement.
RECOMMENDED REFLOW SOLDERING PROFILE
Ramp-Up
3°C/Sec Max.
Critical Temperature Zone
Ramp-Down
6°C/Sec.
260°C
Solder Pad Layout
0.036
(0.9 Max)
0.044
(1.1)
0.095
(2.4)
0.056
(1.4)
0.044
(1.1)
217°C
200°C
150°C
0.052
(1.3)
Do not design any
patterns in this area.
0.075
(1.9)
Preheat
180 Secs. Max.
90 Secs.
Max.
260°C for
10 Secs. Max.
NOTE: Reflow Profile with 240°C peak also acceptable.
0.071
(1.8)
8 Minutes Max.
0.024
(0.6)
Dimensions inches (mm)
All dimensions are maximum unless otherwise specified
Electrical:
Frequency:
Mode:
Load Cap:
Calibration Tolerance:
Stability:
Operating Temp. range:
Storage Temp. range:
Resistance:
Shunt Cap:
Crystal Specifications
32.768 KHz
Tuning Fork
12.5pF (See Table 1)
±20ppm at 25°C
-0.035 ±0.006ppm/±C
2
(See Chart 1)
-40 to 85°C
-55 to 125°C
70K
Ω
Max
1.05pF Typ.
Aging:
Drive level:
Quality Factor:
Spurious Response:
C0/C1 Ratio:
Pullability:
Trim Sensitivity:
Temp. Coefficient:
Type/Angle of Quartz Cut:
Insulation Resistance:
±3ppm Max first year
1uW Max
30K Typ.
Not Specified
Not Specified
Not Specified
Not Specified
Not Specified
Not Specified
500 Megaohms Min at 100Vdc
Typical Temperature Characteristic
0
Load Cap Options
Load Cap
12.5pF
9.0pF
7.0pF
Part Number
C153-SMD
C153-9-SMD
C153-7-SMD
Table 1
PPM
-50
-10
0
25
Temperature °C
Chart 1
60
TD-060803 Rev. B
CRYSTEK
CORPORATION
12730 Commonwealth Drive • Fort Myers, Florida 33913
Phone: 239-561-3311 • 800-237-3061
Fax: 239-561-1025 • www.crystek.com
CRYSTEKCRYSTAL [ Crystek Corporation ]
