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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Load Capacitance:
9pF
Operating Temperature:
-40℃~+85℃
Equivalent Series Resistance(ESR):
-
Frequency:
26MHz
Mfr. Part #:
8DSC260G0009L
Package:
SMD3225-4P
Key Attributes
Model Number:
8DSC260G0009L
Product Description
Product Overview
The Seam3225 is a high-precision Quartz Crystal Resonator from CHANGXING ELECTRONICS CO.,LTD. designed for applications requiring high frequency stability and excellent EMI reduction. It is an ideal choice for Bluetooth devices, wireless communication sets, DSCs, PDAs, and mobile phones. This RoHS Compliant and Pb Free product offers reliable performance within a wide operating temperature range.
Product Attributes
- Brand: CHANGXING ELECTRONICS CO.,LTD.
- Product Model: Seam3225 4PIN
- Series: 8D Series
- Certifications: RoHS Compliant / Pb Free
- Origin: Fujian, China
Technical Specifications
Standard Atmospheric Conditions for Measurement:
- Ambient Temperature: 22 5
- Relative Humidity: 40%~70%
Measurement Limits:
- Ambient Temperature: 22 1
- Relative Humidity: 40%~70%
Measurement Equipment: HP E5100A or equivalent
Crystal Cutting Type: AT CUT (thickness shear mode)
| Parameter | Units | Min. | Max. | Notes |
|---|---|---|---|---|
| Nominal Frequency | MHz | 26.000000 | ||
| Frequency Tolerance at 25 3 | ppm | 10 | ||
| Load Capacitance | pF | 9 | ||
| Oscillation Mode | - | Fund | ||
| Drive Level | uW | 100 | ||
| Shunt Capacitance C0 | pF | 5 | ||
| Operating Temperature Range | -40 | +85 | ||
| Aging (1st Year) | ppm | 3 | ||
| Frequency Tolerance Over Operating Temp. Range | ppm | -1000 | +5000 | |
| Pulling Sensitivity TS | ppm/pF | 125 at DC 100V | ||
| Insulation Resistance | M | 500 | Min. | |
| Spurious Response | dB | -3.0 | ||
| Effective Resistance Rr | 40 | Max. | ||
| Motional Capacitance C1 | fF | |||
| Storage Temperature Range | -55 | +125 | ||
| DLDF | 40 Max. | () | ||
| DLD2 | 10 Max. | () | ||
| FDLD | 10 Max. |
Dimensions
| Dimension | Value (mm) |
|---|---|
| A | 1.40 0.1 |
| B | 3.40 0.1 |
| C | 2.70 0.1 |
| D | 4.00 0.1 |
| E | 8.0 0.2 |
| F | 4.00 0.11 |
| G | 1.55 0.05 |
| H | 1.75 0.1 |
| L | 178 1.0 |
| L1 | 13 0.5 |
| W | 11.5 0.2 |
| W1 | 8.0+1.0 |
Marking
- LOGO
- Nominal Frequency (MHz)
- Line Code
- Last three digits of Production Batch Number
- Year-Month Code (Four-year cycle)
Reflow Condition
Pre-heat time: 60 120 sec.
Pre-heat temperature: 125
Test temperature: 260 5
Test time: 10 1 sec.
Packing
- Standard Reel Quantity: 3,000 pcs per reel (WHITE)
- Packaging Standard: EIA-481-2
Reliability Specifications
1. Mechanical Endurance
- Vibration: Perpendicular axes, 4 hours each test time (Frequency range: 10 2000 Hz)
- Mechanical Shock: Half sine wave (1000 G), 0.5 m sec. duration time, three mutually perpendicular axes, 3 times each.
- Drop Test: 150 cm height, 3 times on concrete floor.
- Resistance To Soldering Heat: Test temperature 260 5 , Test time 10 1 sec.
2. Environmental Endurance
- High Temp. & Humidity: 85 3, RH 85%, 500 Hrs
- 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)
- Pressure Cooker Storage: 125 3, RH 100%, 2 bar, 240Hrs
- High Temp. Storage: 125 (Total test time 12 hours)
- Helium Bombing: 4.5 Kgf / cm2 for 2 hr
- Fine Leak: Flux Rosin resin methyl alcohol solvent (1:4), Immersion time 5 1 seconds
- Gross Leak Test: Automatic Gross Leak Detector, Test Pressure: 2Kg / cm2
Material Composition Declaration
| Part Name | Material Name | CAS No. | Material Mass (%) | Constituent Name | Material Analysis (%) |
|---|---|---|---|---|---|
| Base ( Ceramics) | Al2O3 Aluminum oxide | 1344-28-1 | 23.09% | Al2O3 | 92.40% |
| SiO2 Silicon oxide | 7631-86-9 | SiO2 | 4.31% | ||
| Cr2o3 Chromium oxide | 1308-38-9 | Cr2o3 | 1.50% | ||
| MgO Magnesium oxide | 1309-48-4 | MgO | 0.69% | ||
| CaO Calcium oxide | 1305-78-8 | CaO | 1.10% | ||
| Electrode () | Metal | 36.95% | Fe | 40.70% | |
| Ni Nickel | 7440-02-0 | Ni | 21.80% | ||
| Co Cobalt | 7440-48-4 | Co | 12.80% | ||
| Ag silver | 7440-22-4 | Ag | 21.00% | ||
| Metallizing () | W Tungsten | 7440-33-7 | 6.40% | W | 62.50% |
| Au Gold | 7440-57-5 | Au | 4.61% | ||
| Ni Nickel | 7440-02-0 | Ni | 32.89% | ||
| Fe Iron | 7439-89-6 | Fe | 47.71% | ||
| Cover () | Ni Nickel | 7440-02-0 | 15.01% | Ni | 26.11% |
| Co Cobalt | 7440-48-4 | Co | 15.44% | ||
| Ni Nickel () | 7440-02-0 | Ni | 10.74% | ||
| Solder () | Metal | 20.91% | Ag Silver | 75.00% | |
| SiO2 | 5.00% | ||||
| 5.00% | |||||
| Silicone resin | 15.00% | ||||
| Quartz () | SiO2 Silicon oxide | 14808-60-7 | 2.60% | SiO2 | 100.00% |
| Cr Chromium | 7440-47-3 | Cr | 5.56% | ||
| Adhesive () | Ag Silver | 7440-22-4 | 1.15% | Ag | 94.44% |
| SiO2 | 100.00% | ||||
| 4J29 () | 0.29% |
2504101957_CHANGXING-ELECTRONICS-8DSC260G0009L_C46613761.pdf
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