A through-hole tuning fork crystal oscillator,32.768 khz 12.5pf crystal
The tuning fork crystal oscillator 32.768 khz features:
1、Description: Tuning Fork Quartz Crystal
2、Nominal Frequency: 32.768KHz
3、Oscillation Mode: Fundamental
4、Cutting Mode: x +2° cut
5、Measurement Instrument: S&A 250B(Calculated FL)
Tuning fork crystal oscillator Electrical Characteristics:
Operation Conditions:3*8 mm 32.768khz watch crystal ,cylinder type
Item | Symbol | MIN | TYP | MAX | Unit | Condition |
Operating Temperature Range |
Topt |
-40 |
85 |
℃ | ||
Storage Temperature Range |
Tstg |
-40 |
85 |
℃ | ||
Load Capacitance | CL | 12.5 | pF | |||
Drive Level | DL | 0.1 | 1 | uW |
Tuning fork crystal oscillator dimension；mm
Tuning fork crystal oscillator frequency Stability:
Item | Symbol | MIN | TYP | MAX | Unit | Condition |
Tolerance |
dF/Fo |
-20 |
+20 |
ppm | Refer to Center Frequency@25±3℃ | |
The slope of the temperature curve |
dF/F25 |
-0.049 |
-0.034 |
-0.019 |
ppm/℃2 | Refer to Operating Temperature |
Aging | dF/F25 | -5 | 5 | ppm | Per ea |
dF/Fo: Frequency Deviation Refer to Center Frequency dF/F25:Frequency Deviation Refer to 25℃ Frequency
Tuning fork crystal oscillator Electrical Performance:
Item | Symbol | MIN | TYP | MAX | Unit | Condition |
Equivalent Series Resistance |
ESR |
40 |
KΩ |
@Series |
Tuning g fork crystal oscillator dimensions: mmNot recommended reflow furnace welding,
If it is to be used, the maximum temperature shall not exceed 230℃
Mounting method to PCB
When the crystal products need to be lay down please fix to PCB securely
If the crystal is used with mechanical vibration location, please put cushion in between PCB or fix with
elasticity glue (Silicon etc) as shown in below figure. Please don’t gluing hermetic seal grass
When the crystal products need to be mounted vertically, gap between crystal units and PCB
more than 3mm for 3×8 type , more than 2mm for 2×6 type is recommended
Choose more 32.768 khz crystal smd datasheet , please click this link :
http://www.xtalong.com/channel-82.html