Find Clock Oscillators Here

Handling Notes for Clock Oscillators

1. Shock & Drop / Vibration

Do not inflict excessive shock and mechanical vibration thatexceeds the norm, such as hitting or mistakenly dropping,when transporting and mounting on a board. There are cases
when pieces of crystal break, and pieces that are used become
damaged, and become inoperable. When a shock or vibrationthat exceeds the norm has been inflicted, make sure to check thecharacteristics.

2. Cleaning

Since a crystal piece can be broken by resonance when a crystaldevice is cleaned by ultrasonic cleaning, be careful when carrying
out ultrasonic cleaning.

3. Soldering conditions

To maintain the product reliability, please follow recommended conditions.

Standard soldering iron conditions

Clock Oscillators

Soldering iron

280°C to 340°C

3+1/ −0 sec. max.

Time

Reflow conditions (Example)+0
Peak: 260−10°C

Temperature (°C)

10 sec. max.

+0
180 −10°C

230°C min.
40 sec. max.
120 sec. max.

Time (sec.)

Clock Oscillators

Recommended reflow Conditions vary depending upon products.
Please check with the respective specification for details.

4. Mounting Precautions

5. Storage Condition

Since the long hour high temperature and low temperature storage, as well as the storage at high humidity are causes of deterioration in
frequency accuracy and solderability.
Parts should be stored in temperature range of −5 to +40°C, humidity 40 to 60% RH, and avoid direct sunlight. Then use within 6 months.

As of October 2023

Clock Oscillators

The lead of the device and the pattern of the board is soldered on the surface. Since extreme deformation of the board tears off the pattern,
tears off the lead metal, cracks the solder and damages the sealed part of the device and there are cases in which performance deteriorates
and operation fails, use it within the stipulated bending conditions. Due to the small cracks in the board resulting from mounting, please pay
sufficient attention when attaching a device at the position where the warping of the board is great.
When using an automatic loading machine, as far as possible, select a type that has a small impact and use it while confirming that there is nodamage.
Surface mount devices are NOT flow soldering compatible.

Handling Notes for Clock Oscillators

Find Clock Oscillators Here

6. In order to use clock oscillators(1) The miniature oscillator for the clock utillzes a CMOS IC and incorporates a protective circuit against static electricity. However, exercise
care in the same manner as for a normal CMOS IC.
(2) Internal capacitor is not provided in the power supply section (+DC-GND).
To serve as overimpressed voltage and overcurrent protective device, place a bypass capacitor (0.01μF) as near as possible to the (+DC-GND)
terminal. However, the capacitance value is meant as a guideline. Depending on the capacitor type, frequency characteristics vary. Accordingly,
use a capacitor that matches the frequency characteristics.
(3) A pplying reverse voltage could result in damage to internal parts. Take care not to connect terminals incorrectly.
(4) P lease do not use oscillators under unfavorable condition such as beyond specified range in catalog or specification sheet.
(5) P lease keep oscillators away from water, salt water or harmful gas.
(6) Frequency drift may occur as a result of application of light such as direct sunlight or LED light etc when operating clock oscillator Z series
MC-Z series.
Please use in a design and environment that consider light shielding.
Note the frequency drift will not occur if used in a light-shielded environment.

Clock Timing Chart[CMOS Output]

Tr

Tf

VCC
90% VCC

VOH

50% VCC

10% VCCVOLGNDT1
T0=1/ FOUT

Symmetry=T1/ T0×100 (%)

Clock Oscillators

Test Circuits
CMOS Output Test Circuits

Test PointPad4APad3Oscillator+Power
Supply−Pad1

Pad2

VCL
0.01µF
INHNote) Maximum load (Includes capacitances of fixture and probe)

As of October 2023