Passive Crystal Oscillator HC - 49S 8.000MHz 10ppm - 20ppm 20PF
product application
1 , POS machine
2 , Sound digital effect device
3, Household Electric Appliances
product features
Drive Level Dependence
Temperature-Frequency Characteristics of AT-Type Slice
Spurious Response
Notes on Operation of Quartz Crystal Resonator
Oscillation Circuit
Notes for Ordering
Equivalent Circuit of Crystal Oscillation Circuit
Load Capacitance
Equivalent Circuit
Frequency-Temperature Characteristics
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 | HC-49S |
| Frequency Range(MHZ) | 8.000MHZ |
| Frequency Tolerance(at25℃) | ±10PPm ,±5PPm at25℃+/-2℃ |
| Frequency Stability vs. Temp(FL-T) | ±10PPm,±20PPm ,±30PPm |
| Operating Temperature range | -20~+70℃ -40~+85℃ |
| Storage Temperature range | -45~+80℃ |
| Temperature Characteristics | ±10PPm ±20PPm |
| Load Capacitance | 8 to 20 Pf or Serles |
| Aging | ±3 PPm/year |
| Insulation Resistance | 500MΩ(DC100V±15V) |
Dimension
Refluence examination
Frequency change:≤±5ppm
product advantage
The new Tianyuan in R & D, design, manufacturing, marketing and
service as a whole, have a hundred grade purification workshop. The
international advanced automated production lines, special test
equipment, the latest technology and professional and technical
personnel; has been preparing for the new Tianyuan own industrial
park, to further expand the research and production of the higher
requirements of the product.
FAQ
Packing
200pcs/bag .
Samples and technical support can be provided free of charge.
