|Place of Origin:||China|
|Certification:||SGS REACH ISO9001:2008|
|Model Number:||49SMD 27.000MHZ|
|Minimum Order Quantity:||1|
|Supply Ability:||1 week|
|Frequency Stability:||10PPM||Load Capacitance:||8~20Pf|
|Operating Temperature:||-20℃~+70℃||Package Type:||Surface Mount|
watch crystal oscillator,
audio frequency oscillator
27.000MHZ Passive Cystal Oscillator 10PPM 20PF HC - 49SMD 2PIN
1, The clock generator oscillator and clock chip composed of the main board, most of the components on the motherboard, the clock signal provided by the clock generator, clock generator, clock circuit is the core of the motherboard, the motherboard. The motherboard as the heart of the crystal main clock oscillator, crystal oscillator and real-time sound card, NIC crystal
Standard Environmental Condition:
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℃
1 Mechanical test:
The quartz crystal unit shall be subjected to normal atmospheric conditions for 1hr before being tested.
1.1 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.
1.2 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.
1.3 Sealing Tightness:
Find Lead Test:≤1×10-8atm·cc/S by Helium mass-mass-spectrometer detector,and vacuum and reach 1×10-3Pa；
1.4 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.
|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|
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.
Samples and technical support can be provided free of charge.