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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Load Capacitance:
18pF
Operating Temperature:
-40℃~+85℃
Equivalent Series Resistance(ESR):
-
Frequency:
50MHz
Mfr. Part #:
8DSC500G0018L
Package:
SMD3225-4P
Key Attributes
Model Number:
8DSC500G0018L
Product Description
Product Overview
The Seam3225 is a high-precision Quartz Crystal Resonator designed for demanding applications. It offers high frequency stability and is particularly effective in reducing EMI effects, making it an ideal choice for Bluetooth, wireless communication sets, DSC, PDA, and mobile phones. This product is RoHS Compliant and Pb Free.
Product Attributes
- Brand: CHANGXING ELECTRONICS CO.,LTD. ()
- Product Series: 8D Series
- Sealing Type: Seam Sealing
- Compliance: RoHS Compliant / Pb Free
- Crystal Cutting Type: AT CUT (thickness shear mode)
Technical Specifications
| Parameter | Model/Value | Units | Notes |
|---|---|---|---|
| Nominal Frequency | 50.000000 | MHz | |
| Frequency Tolerance (at 25 3 ) | 10 | ppm | |
| Load Capacitance | 18 | pF | |
| Oscillation Mode | Fund | - | |
| Frequency Tolerance (Standard) | 30 | ppm | |
| Operating Temperature Range | -40+85 | ||
| Storage Temperature Range | -55+125 | ||
| Aging (1st Year) | 3 | ppm | |
| Shunt Capacitance (C0) | 5 Max. | pF | |
| Motional Capacitance (C1) | - | ||
| Effective Resistance (Rr) | 40 Max. | ||
| Pulling Sensitivity (TS) | - | ppm/pF | |
| Drive Level | 100 | uW | |
| Insulation Resistance | 500 Min. | M | at DC 100V |
| Spurious Response | -3.0 Max. | dB | |
| Over Operating Temp. Range | -1000+5000 | ppm | |
| DLD2 (Low) | 125 | ||
| DLDF | 0.01100W/Step | ||
| DLD2 | 30 | ||
| DLDF | 10 Max. | ||
| DLD2 | 40 Max. |
Dimensions
| Dimension | Value (mm) |
|---|---|
| A | 1.400.1 |
| B | 3.400.1 |
| C | 2.700.1 |
| D | 4.000.1 |
| E | 8.00.2 |
| F | 4.000.1 |
| G | 1.550.05 |
| H | 1.750.1 |
| L | 1781.0 |
| L1 | 130.5 |
| W | 11.50.2 |
| W1 | 8.0+1.0 |
Marking
- LOGO
- Nominal Frequency (MHz)
- Line Code
- Last three digits of Batch Number
- Year-Month Code (4-year cycle)
Reflow Condition
Standard Reel Quantity: 3,000 pcs per reel (WHITE)
Packing
(EIA-481-2)
Reliability Specifications
1. Mechanical Endurance:
- Vibration: 10 2000 Hz, Amplitude 1.52 mm/20G, Perpendicular axes each test time 4 hours
- Mechanical Shock: Half sine wave (1000 G), 0.5m sec. duration time, three mutually perpendicular axes each 3 times.
- Drop Test: 150 cm height, 3 times on concrete floor.
2. Environmental Endurance:
- High Temp & Humidity: 85 3, RH 85%, 500Hrs
- Low Temp. Storage: - 40 3 for 500 12 hours
- Thermal Shock: Total 100 cycles of temperature cycle (+125 3 for 500 12 hours to -40 3 for 500 12 hours)
- Resistance To Soldering Heat: Pre-heat time 60 120 sec., Test temperature 260 5 , Test time 10 1 sec.
- High Temp. Storage: 125 (Total test time 12 hours)
- Pressure Cooker Storage: 125 3, RH100%, 2 bar, 240Hrs
- Helium Bombing: 4.5 Kgf / cm2 for 2 hr
- Gross Leak Test: Standard Sample For Automatic Gross Leak Detector, Test Pressure: 2Kg / cm2
- Fine Leak: Flux Rosin resin methyl alcohol immersion time 5 1 seconds
- Solderability: Test temperature 260 5 , Pre-heat temperature 125
Material Composition Declaration
Product Name: Seam 3225
Product Weight(mg): 17.322
| No. | Name of Part | Material Name | Material Mass(mg) | Material Mass (%) | Constituent Name | CAS No. | Material Analysis (%) |
|---|---|---|---|---|---|---|---|
| 1 | Base | Ceramics | 23.09% | Al2O3 | 1344-28-1 | 92.40% | |
| SiO2 | 7631-86-9 | 4.31% | |||||
| Cr2o3 | 1308-38-9 | 1.50% | |||||
| MgO | 1309-48-4 | 0.69% | |||||
| CaO | 1305-78-8 | 1.10% | |||||
| 2 | Cover | Metallizing | 6.40 | 36.95% | Fe | 7439-89-6 | 40.70% |
| Ni | 7440-02-0 | 21.80% | |||||
| Co | 7440-48-4 | 12.80% | |||||
| Ag | 7440-22-4 | 21.00% | |||||
| Cu | 7440-50-8 | 3.70% | |||||
| 3 | Adhesive | Polymer | 0.05 | 0.29% | |||
| 4 | Electrode | Metal | 3.62 | 20.91% | W | 7440-33-7 | 62.50% |
| Au | 7440-57-5 | 4.61% | |||||
| Ni | 7440-02-0 | 32.89% | |||||
| Fe | 7439-89-6 | 47.71% | |||||
| Ni | 7440-02-0 | 26.11% | |||||
| Co | 7440-48-4 | 15.44% | |||||
| 4J29 (Substrate) | Wafer | Quartz | 0.45 | 2.60% | SiO2 | 14808-60-7 | 100.00% |
| Cr | 7440-47-3 | 5.56% | |||||
| Ag | 7440-22-4 | 94.44% | |||||
| 5 | Electrode | Ni (Plating) | 0.20 | 1.15% | Ni | 7440-02-0 | 10.74% |
| 6 | Solder | Metal | 15.01% | Ag | 7440-22-4 | 75.00% | |
| Crystalline Silica | 5.00% | ||||||
| Petroleum Solvent | 5.00% | ||||||
| Silicone resin | 15.00% |
2504101957_CHANGXING-ELECTRONICS-8DSC500G0018L_C46613774.pdf
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