32.768KHz 20ppm MC-146 Tuning Fork Crystal 32.768 khz Crystal
Oscillato
product application
1 , Blood glucose meter
2 , Credit card clearing machine
3 , Preparatory clock for various microcomputers
product features
Wide Frequency range
2pin Resonator, small size.
Lead-free production and RoHS compliance
Standard Environmental Condition:
Environmental Temperature:15℃~35℃
Humidity:45%~85%
Atmospheric pressure:86~106KPa
Operating Temperature Range:-20℃~70℃
Crystal Frequency & Resistance will be tested under the following
conditions,
Unless extra requirments:
standard temperature(25±2℃) after heat balance.
Storage Temperature Range:-40℃~+85℃
Mechanical test:
The quartz crystal unit shall be subjected to normal atmospheric
conditions for 1hr before being tested.
Dropping Test:
The Units are measured for its frequency and resistance in
accordance with Table1 & without mechanical damage,after allowing
the crystal to fall freely.
From 75 cm of height 3 times on the firmed wood.
Vibration Test:
The Units are measured for its frequency and resistance in
accordance with Table 1&without mechanical damage afer
subjectiong to 2hrs of vibration with 0.75mm amplitude with 10~55Hz
frequency sweep 20 times.
Sealing Tightness
Find Lead Test:≤1×10-8atm·cc/S by Helium mass-mass-spectrometer detector,and vacuum and
reach 1×10-3Pa；
Resistance to Soldering Heat:
The Units are measured for its frequency and resistance in
accordance with Table 1 after dipping into molten solder with the
temperature of 320℃±10℃；For 3~4 secs and at a depth up to a point
2.0mm from the base root.
Product specification
| Type | MC-146 |
| Frequency Range(KHZ) | 32.768KHZ |
| Frequency Tolerance(at25℃) | ±20PPm at25℃+/-2℃ |
| Frequency Stability vs. Temp(FL-T) | -0.04×10-6/℃2 Max |
| Operating Temperature range | -20~+70℃ -40~+85℃ |
| Storage Temperature range | -45~+80℃ |
| Temperature Characteristics | ±20PPm |
| Load Capacitance | 8 to 20 Pf or Serles |
| Aging | ±3 PPm/year |
| Insulation Resistance | 500MΩ(DC100V±15V) |
Refluence examination
Frequency change:≤±5ppm
4.2.3 Temperature Shock:
The Units are measured for its frequency and resistance in
accordance
with Table 1 .
FAQ
Packing
9000pcs/tape.
Samples and technical support can be provided free of charge.
