RoHS Compliant
Pb - Lead Free
Ltr
Revisions
Appr
Date
Electrical Specifications:
Nominal Frequency
Frequency Tolerance at 25º C
Aging
Turnover Temperature
Temperature Coefficient
Temperature Range (Operating)
Temperature Range (Storage)
Equivalent Series Resistance
Load Capacitance
Shunt Capacitance
Motional Capacitance
Drive Level
Insulation Resistance
Quality Factor
Capacitance Ratio
Resistance to Shock
Standard
Optional
Standard
Optional
Standard
Optional
32.768
±20
±15
±3 (first year)
25 ±5
-0.035 ± 0.008 PPM/ ºC²
-10 to +60
-40 to +85
-55 to +125
50
12.5
6.0
1.5
3.0
1.0
500 at at 100 Vdc ± 15 Vdc
70000
450
±5 PPM maximum offset from 75 cm drop
test in all axes on to a hard surface.
Specification Title:
11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan, ROC
All dimensions are millimeters.
CAD:
TCR
EG
Review:
JL
Appr:
Page:
1/4
Date: June 10, 2006
Microprocessor Crystal Unit
32.768 KHz
3.8 x 8.0 millimeter Surface Mount
Thermoplastic Package
General Product Specification
Part Number:
CTP3-32.768-12.5-20
www.aker-usa.com
KHz
PPM
ºC
K Ohm Max
pF
pF Typ
fF Typ
uW Max
M Ohm Min
Typ
-
Mechanical Outline:
Package is Thermoplastic.
Dimensions are millimeters.
PCB Solder Pad Layout:
Pad Connection:
Top View
Page:
2/4
Date: June 10, 2006
P/N:
CTP3-32.768-12.5-20
www.aker-usa.com
Carrier Tape Dimensions:
Dimensions are millimeters.
Solder Reflow Characteristics:
Page:
3/4
Date: June 10, 2006
P/N:
CTP3-32.768-12.5-20
www.aker-usa.com
How to build a Part Number:
Series
Package
Frequency
Load Capacitance
Standard
Option
Frequency Tolerance Standard
Option
Standard
Temperature Range
Option
Packaging
CTP
3
32.768
12.5
6
20
15
See Notes
X
R
-
Parameter
3.8 x 8.0 mm Thermoplastic SMD
KHz
-
12.5 pF
6 pF
-
±20 PPM
±15 PPM
-
-10 to +60 ºC
-40 to +85 ºC
-
Tape and Reel
Part Number Example:
CTP3-32.768-12.5-20-R
CTP3- 3.8 x 8.0 mm Thermoplastic SMD Package
32.768 KHz Nominal Frequency
12.5 pF Load Capacitance
20: ±20 PPM Frequency Tolerance
-10 to +60° C Temperature Range
R: Tape and Reel Packaging
Frequency vs. Temperature Characteristics:
To calculate the frequency stability the parabolic
curvature constant (K) is needed.
For calculating the stability at 45 ° C?
1- Change in temperature (T) is (45-25) = +20 ° C
2
2- Change in frequency is (-0.035 x (° C) ) =
2
(-0.035 x (20) = -14 PPM
Notes:
1- Standard Temperature Range does not need to be included in Part Number description.
2- Product is shipped in Tape and Reel configuration. Each reel contains 3000 pieces.
3- Quantities less than 3000 are shipped bulk in ESD pouches.
4- Specification subject to change without notice.
Page:
4/4
Date: June 10, 2006
P/N:
CTP3-32.768-12.5-20
www.aker-usa.com
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