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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Load Capacitance:
10pF
Operating Temperature:
-40℃~+85℃
Equivalent Series Resistance(ESR):
-
Frequency:
25MHz
Mfr. Part #:
8DSC250G0010L
Package:
SMD3225-4P
Key Attributes
Model Number:
8DSC250G0010L
Product Description
Product Overview
The Seam3225 4PIN 25.000000MHz 8DSC250G0010L is a Quartz Crystal Resonator designed for high-precision and high-frequency stability applications. It offers excellent EMI reduction and is 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 Model: Seam3225 4PIN 25.000000MHz 8DSC250G0010L
- Series: 8D Series
- Type: SMD Seam Sealing Crystals
- Crystal Cutting Type: AT CUT (thickness shear mode)
- Certifications: RoHS Compliant / Pb Free
Technical Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Nominal Frequency | 25.000000 | MHz | Fund |
| Frequency Tolerance at 25 3 | 10 | ppm | |
| Load Capacitance | 10 | pF | |
| Frequency Tolerance | 30 | ppm | at DC 100V |
| Operating Temperature Range | -40+85 | ||
| Storage Temperature Range | -55+125 | ||
| Shunt Capacitance C0 | 5 | Max. | pF |
| Motional Capacitance C1 | - | ||
| Effective Resistance Rr | 40 | Max. | |
| Drive Level | 100 | uW | |
| Aging (1st Year) | 3 | ppm | |
| Pulling Sensitivity TS | - | ppm/pF | |
| Insulation Resistance | 500 | Min. | M |
| Spurious Response | -3.0 | Max. | dB |
| Dimensions (L x W x H) | 3.2 x 2.5 x 0.7 | mm | |
| Reel Quantity | 3,000 | pcs per reel | (WHITE) |
| Product Weight | 17.322 | mg |
Packing
EIA-481-2 Standard Reel Quantity: 3,000 pcs per reel (WHITE).
Material Composition Declaration
| Part | Material Name | Material Mass (mg) | Material Mass (%) | Constituent Name | CAS No. | Material Analysis (%) |
|---|---|---|---|---|---|---|
| 1. Base | Ceramics | 23.09 | 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 | 4.00 | 15.01% | Silicone resin | - | 15.00% |
| Petroleum solvent | - | 5.00% | ||||
| Crystalline silica | 14808-60-7 | 5.00% | ||||
| 4. Blank | Quartz | 0.45 | 2.60% | SiO2 | 14808-60-7 | 100.00% |
| 5. Electrode | Metal | 0.20 | 1.15% | W | 7440-33-7 | 62.50% |
| Au | 7440-57-5 | 4.61% | ||||
| Ni | 7440-02-0 | 32.89% | ||||
| 6. Solder | Metal | 20.91 | Fe | 7439-89-6 | 47.71% | |
| Ni | 7440-02-0 | 26.11% | ||||
| Co | 7440-48-4 | 15.44% | ||||
| Ni (Plating) | 7440-02-0 | 10.74% | ||||
| Ag | 7440-22-4 | 75.00% |
Reflow Condition
Standard conditions apply.
Reliability Specifications
1. Mechanical Endurance:
- Vibration: 10 2000 Hz, Perpendicular axes, 4 hours each test time.
- Drop Test: 150 cm height, 3 times on concrete floor.
- Mechanical Shock: Half sine wave (1000 G), 0.5m sec. duration time, three mutually perpendicular axes, 3 times each.
- Resistance To Soldering Heat: Pre-heat time 60 120 sec, Pre-heat temperature 125 , Test temperature 260 5 , Test time 10 1 sec.
- Solderability: Flux Rosin resin methyl alcohol solvent (1:4), Immersion time 5 1 seconds, Test temperature 260 5 .
2. Environmental Endurance:
- High Temp & Humidity: 85 3, RH 85%, 500Hrs.
- Low Temp. Storage: -40 3 for 500 12 hours.
- Temperature Cycle: Total 100 cycles of 125 3 for 500 12 hours.
- Pressure Cooker Storage: 125 3, RH100%, 2 bar, 240Hrs.
- High Temp. Storage: 125 (Total test time 12 hours).
- Helium Bombing: 4.5 Kgf / cm2 for 2 hr.
- Fine Leak: Test Pressure: 2Kg / cm2.
- Gross Leak Test: Standard Sample For Automatic Gross Leak Detector.
2504101957_CHANGXING-ELECTRONICS-8DSC250G0010L_C46613756.pdf
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