12.288MHZ Low Frequency Cystal Oscillator HC - 49SMD PC / PC
Peripheral / IT 10PPM 12.288MHZ
Product Application
1 , Digital audio effects
2 , Network transport ADSL
product features
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.
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.
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:
A. Test surface: 30mm thick hard board;
B. Drop height: 75cm;
C. Drop times: 3 times;
D. Begins to drop posture: the leading end is upward;
E. Initial and final test items: frequency, resistance
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 | 49SMD |
| Frequency Range(MHZ) | 12.288MHZ |
| 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) |
Product Advantage
1. Our products are all original and new from manufacturer. It must be
work if the model number is correct.
2. We have advanced testing equipments
3. Get the international standard management sysem ISO9001,RoHS
4. All products before sending client,we make 72 hours aging test
5. We have 180days warranty
6. During the guarantee period, if the items you purchased from our
store are out of perfected quality, pls notify us within 3 days
after delivery, we will return the new products when we got your
message.
Dimension
4.1.5 Refluence examination
Frequency change:≤±5ppm
Packing
200pcs/bag or 1000pcs/tape.
Samples and technical support can be provided free of charge.
