32.768kHz Series
Tuning Fork Crystal Units
The 32.768kHz turning fork crystal unit is the most widely used frequency control product.
TAITIEN’s tuning-fork-type crystals have low power consumption ideal for portable
application. Their different package sizes provide the customers more choices for time
management. TAITIEN’s tuning-fork-type crystals are cost effective real time clock products.
Type
Size (mm)
Package
RoHS
XA
3x8
DIP
Yes
1x4
DIP
Yes
XB
2x6
DIP
Yes
2.0 x 1.2
SMD
Yes
XD
3.2 x 1.5
SMD
Yes
4.1 x 1.5
SMD
Yes
6.9 x 1.4
SMD
Yes*
XN
8.0 x 3.8
SMD
Yes*
Outline
* Pb in high temperature solder (exempt per RoHS 2002/95/EC Annex (7)) and suitable for RoHS compliant reflow
ELECTRICAL SPECIFICATION
Nominal Frequency
Mode of Vibration
Storage Temp. Range (T
STR
)
Turnover Temperature (TM)
Temperature Coefficient (β)
β
Frequency vs. Temperature (△f / fM)
△
Series Resistance (R1)
Level of Drive (DL)
Aging (first year) (△f / f0)
△
Quality Factor (Q)
Shunt Capacitance (C0)
Load Capacitance (CL)
Frequency Tolerance(f_tol)
Insulation Resistance
32.768000 kHz
Fundamental
-55°C ~+125 °C
25±5 °C
-(0.03±0.01) ppm/°C
2
βx
(T-TM)
2
ppm
65~90 KΩ Max.
0.1±0.01 uW Typ, 0.5 uW Max.
±3 ppm Max.
30000~60000 Typ.
3~7 pF Max.
6, 7, 9, 12.5 pF (Please contact us)
±20 ppm @ 25±5 °C
500 MΩ Min. @ DC 100±15 V
Specifications subject to change without notice
FREQ. vs. CAPACITANCE RATIO (C0/C1)
FREQ. vs. LOAD CAPACITANCE (TYP.)
FREQ. vs. TEMPERATURE (TYP.)
Page 1 of 2
Specifications subject to change without notice
Rev(4) 04/2019
DIMENSION (mm) – XA / XB Type
DIMENSION (mm) – XD Type
SOLDER PAD LAYOUT (mm)
DIMENSION (mm) – XN Type
SOLDER PAD LAYOUT (mm)
DIMENSION (mm) – XN Type
SOLDER PAD LAYOUT (mm)
Page 2 of 2
Specifications subject to change without notice
Rev(4) 04/2019
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