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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Load Capacitance:
15pF
Operating Temperature:
-40℃~+85℃
Equivalent Series Resistance(ESR):
-
Frequency:
25MHz
Mfr. Part #:
8DSC250G0015L
Package:
SMD3225-4P
Key Attributes
Model Number:
8DSC250G0015L
Product Description
Product Overview
The Seam3225 4PIN 25.000000MHz 8DSC250G0015L is a high-precision Quartz Crystal Resonator designed for demanding applications. It offers high frequency stability and is exceptionally effective at reducing EMI effects, making it an ideal choice for Bluetooth devices, wireless communication sets, DSCs, PDAs, and mobile phones. This product is RoHS Compliant and Pb Free.
Product Attributes
- Brand: CHANGXING ELECTRONICS CO.,LTD.
- Origin: Fujian, China
- Product Type: Quartz Crystal Resonator
- Sealing Type: Seam Sealing
- Series: 8D Series
- Compliance: RoHS Compliant / Pb Free
- Crystal Cutting Type: AT CUT (thickness shear mode)
Technical Specifications
| Parameter | Model/Value | Units | Notes |
|---|---|---|---|
| Nominal Frequency | 25.000000 | MHz | Fund |
| Frequency Tolerance at 25 3 | 10 | ppm | |
| Load Capacitance | 15 | pF | |
| Operating Temperature Range | -40+85 | ||
| Storage Temperature Range | -55+125 | ||
| Aging (1st Year) | 3 | ppm | |
| Drive Level | 100 | uW | Max. |
| Shunt Capacitance C0 | 5 | pF | Max. |
| Motional Capacitance C1 | (See Notes) | pF | DLD2 - |
| Effective Resistance Rr | 40 | Max. | |
| Pulling Sensitivity TS | (See Notes) | ppm/pF | DLD2 - DLDF - |
| Insulation Resistance | 500 | M | Min. at DC 100V |
| Spurious Response | -3.0 | dB | Max. |
| Dimensions (L x W x H) | 3.2 x 2.5 x 0.7 | mm | SMD |
| Reel Quantity | 3,000 | pcs per reel | (WHITE) |
Dimensions
| Dimension | Value | Unit |
|---|---|---|
| A | 1.40 | 0.1 mm |
| B | 3.40 | 0.1 mm |
| C | 2.70 | 0.1 mm |
| D | 4.00 | 0.1 mm |
| E | 8.0 | 0.2 mm |
| F | 4.00 | 0.11 mm |
| G | 1.55 | 0.05 mm |
| H | 1.75 | 0.1 mm |
| L | 178 | 1.0 mm |
| L1 | 13 | 0.5 mm |
| W | 11.5 | 0.2 mm |
| W1 | 8.0 | +1.0 mm |
Marking
LOGO, Nominal Frequency (MHz), Line Code, Last three digits of Batch Number, Year-Month Code (4-year cycle).
Reflow Condition
Standard Sample For Automatic Gross Leak Detector, Test Pressure: 2Kg / cm2
Packing
EIA-481-2 Standard Reel Quantity: 3,000 pcs per reel (WHITE)
Reliability Specifications
| Category | Test Item | Test Methods | Reference Document |
|---|---|---|---|
| Mechanical Endurance | Vibration | Perpendicular axes each test time 4 hours | JIS C6701 |
| Mechanical Shock | Device are shocked to half sine wave (1000 G) three mutually perpendicular axes each 3 times. 0.5m sec. duration time | MIL-STD-202F | |
| Drop Test | 150 cm height, 3 times on concrete floor. | JIS C6701 | |
| Resistance To Soldering Heat | Pre-heat time 60 120 sec. Pre-heat temperature 125 (Total test time 12 hours) | MIL-STD-883E | |
| Environmental Endurance | High Temp & Humidity | 85 3 , RH 85% , 500Hrs | JIS C5023 |
| Low Temp. Storage | - 40 3 for 500 12 hours | MIL-STD-883E | |
| Thermal Shock | Total 100 cycles of the following temperature cycle: 125 3 for 500 12 hours | MIL-STD-883E | |
| Pressure Cooker Storage | 125 3 , RH100% , 2 bar , 240Hrs | MIL-STD-883E | |
| High Temp. Storage | 260 5 Immersing depth 0.5 mm minimum | MIL-STD-883E | |
| Helium Bombing | 4.5 Kgf / cm2 for 2 hr | MIL-STD-883E | |
| Fine Leak | Flux Rosin resin methyl alcohol solvent ( 1 : 4 ) Immersion time 5 1 seconds | IEC-68-02-27 | |
| Soldering | Gross Leak Test | Test temperature 260 5 Test time 10 1 sec. | MIL-STD-202F |
| Shock Test | 150g/150cm Height, 3 times in the direction of X,Y,Z on concrete floor | MIL-STD-202F |
Material Composition Declaration
| Part Name | Material Name | Material Mass (mg) | Material Mass (%) | Constituent Element Name | CAS No. | Element Percentage (%) |
|---|---|---|---|---|---|---|
| Base () | Ceramics () | 23.09 | 23.09% | Al2O3 (Aluminum oxide) | 1344-28-1 | 92.40% |
| SiO2 (Silicon oxide) | 7631-86-9 | 4.31% | ||||
| Cr2o3 (Chromium oxide) | 1308-38-9 | 1.50% | ||||
| MgO (Magnesium oxide) | 1309-48-4 | 0.69% | ||||
| CaO (Calcium oxide) | 1305-78-8 | 1.10% | ||||
| Solder () | Metal () | 6.40 | 36.95% | Fe (Iron) | 7439-89-6 | 40.70% |
| Ni (Nickel) | 7440-02-0 | 21.80% | ||||
| Co (Cobalt) | 7440-48-4 | 12.80% | ||||
| Ag (silver) | 7440-22-4 | 21.00% | ||||
| Adhesive () | Polymer () | 0.20 | 1.15% | Cu (Copper) | 7440-50-8 | 3.70% |
| W (Tungsten) | 7440-33-7 | 62.50% | ||||
| Au (Gold) | 7440-57-5 | 4.61% | ||||
| Ni (Nickel) | 7440-02-0 | 32.89% | ||||
| Electrode () | Metal () | 0.05 | 0.29% | Fe (Iron) | 7439-89-6 | 47.71% |
| Ni (Nickel) | 7440-02-0 | 26.11% | ||||
| Co (Cobalt) | 7440-48-4 | 15.44% | ||||
| Cover () | Metallizing () | 3.62 | 20.91% | Ni (Nickel) | 7440-02-0 | 10.74% |
| Ag (Silver) | 7440-22-4 | 75.00% | ||||
| Quartz () | SiO2 (Silicon oxide) | 0.45 | 2.60% | (Element not specified) | 14808-60-7 | 100.00% |
| Cr (Chromium) | 7440-47-3 | 5.56% | ||||
| 4J29 () | Metal () | 0.20 | 1.15% | Ag (Silver) | 7440-22-4 | 94.44% |
| (Element not specified) | 5.00% | |||||
| Other | Petroleum solvent () | 5.00% | (Element not specified) | |||
| Other | Silicone resin () | 15.00% | (Element not specified) |
2504101957_CHANGXING-ELECTRONICS-8DSC250G0015L_C46613758.pdf
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