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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Load Capacitance:
20pF
Operating Temperature:
-40℃~+85℃
Equivalent Series Resistance(ESR):
-
Frequency:
25MHz
Mfr. Part #:
9ASC250G0020L
Package:
SMD5032-2P
Key Attributes
Model Number:
9ASC250G0020L
Product Description
Product Overview
The CHANGXING ELECTRONICS CO.,LTD. Glass 5032 2PIN 25.000000MHz Quartz Crystal Resonator (Model: 9ASC250G0020L) is a 5.0x3.2x1.2mm SMD glass-sealed crystal unit designed for automatic mounting and reflow soldering. It offers high reliability, tight tolerance, and stability, making it an ideal choice for portable PCs, PDAs, DSCs, and USB interface cards. The product features Pb in sealing glass, exempted by RoHS directive, and provides reasonable cost with good delivery performance.
Product Attributes
- Brand: CHANGXING ELECTRONICS CO.,LTD.
- Product Line: 9A Series
- Product Type: SMD Glass Sealing Crystals / Quartz Crystal Resonator
- Origin: Fujian, China
- RoHS Exemption: Contains Pb in sealing glass exempted by RoHS directive.
Technical Specifications
| Electrical Specifications | ||
|---|---|---|
| Parameter | Notes | Value |
| Nominal Frequency | 25.000000 MHz | |
| Oscillation Mode | Fund | - |
| Load Capacitance | 20 pF | - |
| Frequency Tolerance | 10 ppm at 25 | - |
| Frequency Tolerance Over Operating Temp. Range | 30 ppm | -40+85 |
| Aging 1st Year | 100 ppm | - |
| Drive Level | 100 uW Max. | - |
| Effective Resistance (Rr) | 40 Max. | - |
| Shunt Capacitance (C0) | 5 pF Max. | - |
| Motional Capacitance (C1) | - | - |
| Pulling Sensitivity (TS) | - | ppm/pF |
| Spurious Response | -3.0 dB Max. | - |
| Insulation Resistance | 500 M Min. at DC 100V | - |
| Storage Temperature Range | -55+125 | - |
| DLDF | 10 Max. | - |
| DLD2 | 0.0130W/15 steps | - |
| FDLDH | 5 Max. | - |
| RLD2 | 40 Max. | - |
| FDLD | 10 Max. | - |
| DLDH2 | 5 Max. | - |
| Dimensions | |
|---|---|
| Dimension | Value (mm) |
| A | 1.450.1 |
| B | 5.400.1 |
| C | 3.600.1 |
| D | 8.000.1 |
| E | 12.00.2 |
| F | 4.000.1 |
| G | 1.550.05 |
| H | 1.750.1 |
| L | 1801.0 |
| L1 | 130.5 |
| W | 16.50.2 |
| W1 | 12.0+1.0 |
| Marking | Details |
|---|---|
| LOGO | CX25.0 **** |
| Nominal Frequency (MHz) | 25.0 |
| Line Code | **** |
| Last Three Digits of Production Batch No. | **** |
| Year-Month Code (4-year cycle) | **** |
| Packing | Details |
|---|---|
| Standard Reel Quantity | 1,000 pcs per reel (WHITE) |
| Standard | EIA-481-2 |
| Reliability Specifications | ||
|---|---|---|
| Category | Test Item | Test Methods / Reference |
| Mechanical Endurance | Resistance To Soldering Heat | MIL-STD-202F (Pre-heat 125, 60-120s; Test 2605, 101s) |
| Mechanical Shock | MIL-STD-202F (1000G, 0.5ms, 3 axes) | |
| Vibration | MIL-STD-883E (10-2000Hz, 1.52mm/20G, 4 hrs per axis) | |
| Drop Test | JIS C6701 (75cm height, 3 times on concrete floor) | |
| Environmental Endurance | Gross Leak | MIL-STD-883E (Test Pressure: 2Kg/cm) |
| Fine Leak | MIL-STD-883E (Helium Bombing 4.5 Kgf/cm for 2 hr) | |
| Solderability | MIL-STD-883E (2605, 51s, 0.5mm depth) | |
| High Temp & Humidity | JIS C5023 (853, RH 85%, 1000Hrs) | |
| Thermal Shock | MIL-STD-883E (100 cycles) | |
| High Temp. Storage | MIL-STD-883E (+1253 for 100012 hours) | |
| Low Temp. Storage | MIL-STD-883E (-403 for 100012 hours) | |
| Material Composition Declaration | ||||
|---|---|---|---|---|
| Part | Material Name | CAS No. | Material Mass (%) | Constituent Element (%) |
| Base (Ceramics) | Al2O3 | 1344-28-1 | 92.41% | Al2O3: 92.41%, SiO2: 4.30%, Cr2O3: 1.51%, MgO: 0.69%, CaO: 1.09% |
| Metalization (Metal) | W | 7440-33-7 | 4.05% | W: 100.00% |
| Plating | Au | 7440-57-5 | 17.69% | Au: 17.69%, Ni: 82.31% |
| Cover (Glass) | PbO | 1317-36-8 | 57.29% | PbO: 57.29%, PbF2: 19.29%, Bi2O3: 5.30%, Nb2O5: 4.30%, B2O3: 2.30%, ZnO: 2.30%, CuO: 1.30%, CaO: 0.30%, TiO2: 5.30%, Fe2O3: 2.30% |
| Electrode (Metal) | Ag | 7440-22-4 | 75.00% | Ag: 75.00%, Cr: 5.56%, Ag: 94.44% |
| Adhesive (Polymer) | Silicone resin | - | 15.00% | - |
| Chip (Quartz) | SiO2 | 14808-60-7 | 100.00% | SiO2: 100.00% |
2504101957_CHANGXING-ELECTRONICS-9ASC250G0020L_C46613811.pdf
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