CARDINAL COMPONENTS
Plastic Surface Mount Watch Crystals
• Extended operating temperature
• Two industry standard pin connections
• Uniform, stable performance
Series CPTA
CPTB
Part Numbering Example: CPTA Z - A1 B2 C5 - 32.768K D12.5
CPTA
SERIES
CPTA
CPTB
Z
ADDED FEATURES
BLANK = BULK PACK
Z = TAPE AND REEL
A1*
OPERATING TEMP.
A0 = -10°C ~ +60°C
A1 = -10°C ~ +70°C
A2 = -40°C ~ +85°C
A3 = -55°C ~ +125°C
B2
STABILITY
B1 = ±100
B2 = ± 50
B3 = ± 30
B4 = ± 10
C5
TOLERANCE
C1 = ±100
C2 = ± 50
C3 = ± 30
C4 = ± 10
C5 = ± 20
32.768K
FREQUENCY
D12.5
LOAD CAP.
D12.5 pF
*NOTE:
The above ABC combinations cover basic specification options. We tailor our crystal specifications
to meet customer requirements. Please contact our sales department if you don’t see exactly what you need.
Specifications:
CPT
Frequency Range:
Operating Temperature:
Temperature Coefficient:
Frequency Tolerance:
(at 25°C)
Load Capacitance:
Shunt Capacitance:
Resistance:
Standard:
32.768 KHz
Custom frequencies available.
-40°C ~ +85°C
± 20 ppm
12.5 pF
Other values are available.
1.35 pF
Standard
-(0.035 ± 0.008) ppm/°C
2
Typical
50,000Ω Max
Shunt Capacitance: 0.85 pF typ.
Motional Capacitance: 2.0 fF typ.
Aging: ± 3 ppm/year Max
Drive Level: 1.0 µW Max
Packaging: Tape & Reel (2K per Reel)
Cardinal Components, Inc., 155 Rt. 46 W, Wayne, NJ. 07470 TEL: (973)785-1333 FAX: (973)785-0053
http://www.cardinalxtal.com
E-Mail: cardinal@cardinalxtal.com
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