T38 Datasheet, PDF (1/2 Pages) EPCOS – Ferrites and accessories

T38, T26, T15 32.768 KHz Tuning Fork Watch Crystals
MERCURY
Since 1973
• Micro tubular holder (cylindrical type) X-cut tuning fork crystals.
• Ideal for 1Hz timing frequency.
• Compact and high-shock.
SPECIFICATIONS
Frequency:
Crystal Holder Prefix:
MEC Part Number:
Holder Sizes:
Frequency Tolerance at 25°C:
Maximum Series Resistance:
Quality Factor (Q):
Motional Capacitance (C1):
Shunt Capacitance (Co):
Capacitance Ratio (Co/C1):
Load Capacitance (CL):
Vibration Type:
Turnover Temperature (TT):
Drive Level:
Parabolic Curvature Constant:
Operating Temperature Range:
Storage Temperature Range:
Shock:
Vibration:
Aging:
32.768 kHz
T15
T26
T38
T15-32.768K-8P
1.5^Ø mm x 5.0mm
T26-32.768K-12.5P
2.0^Ø mm x 6.0mm
T38-32.768K-12.5P
3.0^Ø mm x 8.0mm
±15 ppm; ±20 ppm (standard), ±30 ppm
40 k max.
35 k max.
35 k max.
40,000 minimum
50,000 minimum
50,000 minimum
0.0025 pf typical
0.0030 pf typical
0.0035 pf typical
1.00 pf typical
1.35 pf typical
1.60 pf typical
400 typical
450 typical
460 typical
8pF typical
6 pF or 12.5 pF
6 pF or 12.5pF
X-cut
25°C ±5°C
1 µW max.
-0.035ppm / °C² typical
-10°C to +60°C
-30°C to +70°C
3 ppm maximum 3 drops from a height of 75 cm onto hardwood
3 ppm maximum
First year: 3 ppm maximum at 25°C
MERCURY www.mercury-crystal.com
Taiwan: TEL [phone], FAX [phone], e-mail: [e-mail]
U.S.A.: TEL [phone], FAX [phone], e-mail: [e-mail]
- 26 -