Quartz Crystal Resonator
Professional manufacturer of quartz crystal. This product is designed for various electronic applications requiring precise frequency control. Key advantages include high quality, reliability, and adherence to international standards. Suitable for a wide range of electronic circuits and devices.
Product Attributes
- Brand: LUCKI CM ELECTRONICS Co.,Ltd
- Origin: ZHEJIANG A-CRYSTAL ELECTRONIC TECHNOLOGY CO., LTD.
- Certifications: RoHS (Pb-Free)
Technical Specifications
| Parameter | Symbol | Value | Condition |
| Hold Type | PMX-145 | ||
| Frequency | FO | 32.768KHz | |
| Frequency Tolerance | f/fo | 20PPM | REF TO 25 |
| Temperature Coefficient | K | -0.0340.006 ppm/()2 | |
| Turnover Temperature | TTO | 255 | |
| Operating Temperature Range | TOP | -40 to 85 | |
| Storage Temperature Range | TST | -55 to 125 | |
| Quality Factor | Q | 60,000 TYP | |
| Series Resistance | R1 | 65 K | REF TO 25 |
| Shunt Capacitance | CO | 1.8PF TYP | 0.9~2.0PF |
| Motional Capacitance | C1 | 1.9 TYP | |
| Load Capacitance | CL | 12.5 PF | |
| Insulator Resistance | IR | 500 M | DC100V15V |
| Drive Level | DL | 1W | |
| Capacitance Ratio | R | 450 TYP | |
| Aging Rate | /f | 5PPM | at 253 |
Reliability (Mechanical and Environmental Endurance)
| No. | Test | Test Method and Condition | Requirements |
| 1 | Vibration | Frequency: 10 to 55Hz; Amplitude: 1.5mm; Cycle Time: 1~2min(10-55-10Hz); Direction: X.Y.Z; Duration: 2H/EACH DIRECTION; G-Force: 5G | Frequency Change: 10PPM MAX.; Resistance Change: 15%RRMAX |
| 2 | Shock | 3 Times free drop from 75cm height to hard wooden board of thickness more than 30mm. | Frequency Change: 10PPM MAX.; Resistance Change: 15%RRMAX. |
| 3 | Leakage | Put crystal units into a hermetic container and helium for 0.5-0.6. MPA, and keep it for 1H; check the leakage by a helium leak detector. | Leakage: 1X10-8MBAR.L/S MAX. |
| 4 | Solderability | Dip the leads into flux (Rojin Methanol) for 3~5S. Dip the leads into 2455 99% Sn dipping solution for 5S. | The dipped part of the leads should have 95% Sn coating. |
| 5 | Soldering Heat Resistance Test | Perform electrical characteristics test before starting. Dip leads into flux (Rojin Methanol) 50.5S. Dip leads into 2605 99% Sn dipping solution for 5S. Take unit out, store at room temperature for 30S then measure electrical characteristics. | Should pass sealing and visual test. Frequency Change: 10PPM MAX. |
| 6 | Leak Test | Use helium leak detector. Bombing pressure: 5KG/CM; Bombing time: 2 Hours | Leak should be less than 1E-8 ATM.CC/SEC. Gas or air should not be detected. |
| 7 | High Temperature Endurance | Crystal units shall be put in some where for 500 hours at temperature of 1255, then keep it for 1 to 2 hours under room temperature. | Frequency Change: 10PPM MAX.; Resistance Change: 15%RRMAX. |
| 8 | Low Temperature Endurance | Crystal units shall be put in some where for 500 hours at temperature of -40, then keep it for 1 to 2 hours under room. | Frequency Change: 10PPM MAX.; Resistance Change: 1 5%RRMAX |
| 9 | Humidity Endurance | Somewhere at 405 in relative humidity of 90%~95% for 72 hours, then keep it for one or two hours under room temperature | Frequency Change: 10PPM MAX.; Resistance Change: 1 5%RRMAX. |
| 10 | Temperature Cycle | Temperature shift from low(-40) to high(100, keep 30 minutes), satisfy high(100) to low(-40, keep 30 minutes), then go up to room temperature for 10 cycles. | Frequency Change: 10PPM MAX.; Resistance Change: 1 5%RRMAX. |
| 11 | Lead Tensility | Fix the unit. Apply 2LB of weight axis to the leads. Time: 5S | Should pass sealing and visual test. |
| 12 | Lead Bending | Attach 1LB of weight to each of the leads. Bending angle: 90(from the normal position to 45opposedirection). Bending time: 3S(each direction). Number of bending: 2 times. | Should pass sealing and visual test. |
| 13 | Marking Erase | Submerge the unit into IPA [Isopropyl Alcohol] solution for 10 minutes and brush the marking 10 times with a tooth brush. | Marking should not be erased. |
Packing
| Packing Method | Quantity Pcs/reel | a | b | c | e | f | h | j | k |
| 3k/reel & 9k/reel | 16.0 | 7.5 | 4.0 | 7.2 | 0.15 | 0.5 | 1.65 | 3 |
| Reel Dimensions | Pieces per reel | m | n | L | Carrier tape size |
| 3000/reel | 1803 | 60min | 17.5 | 16 | |
| 9000/reel | 3303 | 80min | 17.5 | 16 |
Package is made of corrugated paper with thickness of 0.8cm. Package has 10 inner boxes, each box has 1 reel.
Quantity of package:
- Per plastic reel: 3000 pieces of Crystal Resonators
- Per inner box: 3k/reel & 9k/reel
- Per package: 20 inner boxes (60000 pieces of Crystal Resonators) & 10 inner boxes (90000 pieces of Crystal Resonators)
Caution
- Shock: Avoid dropping units above the recommended height (500mm) as specific characteristics and appearance can change.
- Environmental: Avoid storing next to high temperature heaters (above +85C) or below -40C, and strong light sources for long periods. Do not store in humid environments as lead terminals can be damaged. Avoid environments with vibration as operating characteristics can be altered.
- Leads: Do not bend leads more than 2 times at 90 from its axis, as the terminal could be disconnected. After soldering, avoid impacting the unit from any side, which can shatter the glass portion.
- Assembly Method: Use ultrasonic frequency less than 20KHz for cleaning. Soldering should be done using IEC 61760-1 or Pb-Free Products.
- Storage: Avoid storing in humid or salty environments. Do not store crystal units for more than 3 months.
Pb-Free Products
A-crystal implements a Pb-free program in accordance with European Union (EU) Legislation titled "Restriction of the use of certain Hazardous Substances (RoHS)", banning the use of Pb in electronic assemblies after July 1, 2006.
Pb-Free Classification: Component and Assembly Pb content shall be less than 0.1% by weight of the device (in accordance to IPC/EIA J-STD-006) and shall not be intentionally introduced.
Components: A-crystal's definition of components apply to quartz crystal devices.
Assemblies: A-crystal's definition of assemblies apply to oscillator devices (XO, VCXO and TCXO's).
Recommended Solder Composition: Alloy range Sn-Ag(3.4-4.1)-Cu(0.45-0.9) for reflow and wave soldering.
Pb-free Part Number Identification: When applicable, the A-crystal specification sheet shall indicate if the device is classified as Pb-free.
Marking and Labeling: A-crystal has a Pb-free labeling method for the packaging of all Pb-free products. The lowest level shipping container shall identify the products as Pb-free.
2410122010_Lucki-L146HS32768ML_C5917280.pdf
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