WATCH CRYSTALS 32.768kHz
ISSUE 9; 12 JUNE 1998
Outline in mm (inches) - (scale 3:1)
Delivery Options
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Product available from stock. Please see p4 for details
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Holder Style
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Watch crystals are press sealed. Two sizes are avail-
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able: 3 × 8.2mm & 2 × 6.2mm
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General Specifications
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Load Capacitance (CL): 6pF to 15pF
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Drive Level: 1.0mW max.
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Static Capacitance (C0): 1.6pF typical
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Standard Frequency Tolerances and Stabilities
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20ppm, 30ppm, 50ppm, 100ppm
Operating Temperature Ranges
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0 to 50°C
–20 to 70°C
–30 to 80°C
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–10 to 60°C
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Storage Temperature Range
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–55 to 125°C
Marking
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Frequency Temperature Curve
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Frequency (3 × 8.2mm only; 2 × 6.2mm product is
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unmarked)
Minimum Order Information Required
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Frequency + Holder + Frequency Tolerance @ 25°C
+ Operating Temperature Range + Circuit Condition
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Df / f0 = -0.038(T - T0 )2 ± 10%
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Electrical Specification – maximum limiting values
Frequency Range
Frequency Tolerance
@ 25°C 2°C
Operating
Temperature Range
Frequency Stability Available Over
Operating Temperature
ESR
Max
Vibration
Mode
Minimum
–25ppm
–50ppm
–85ppm
–150ppm
Maximum
–100ppm
–100ppm
–100ppm
–300ppm
32.768kHz
10ppm to 100ppm
0 to 50°C
–10 to 60°C
–20 to 70°C
–30 to 80°C
Fundamental
50kW
Europe Tel: +44 (0)1460 74433 Fax: +44 (0)1460 72578
7
Americas Tel: +1 919 941 0430 Fax: +1 919 941 0530
ETC [ ETC ]
