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

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.