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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Operating Temperature:
-40℃~+85℃
Load Capacitance:
7.5pF
Frequency:
48MHz
Mfr. Part #:
7U48000E07AUCG
Package:
SMD3225-4P
Key Attributes
Model Number:
7U48000E07AUCG
Product Description
Product Overview
The Series 7U is a seam-sealed ceramic quartz crystal unit with a 3.2x2.5mm surface mount package. It is designed for applications requiring stable frequency output within a specified operating temperature range.
Product Attributes
- Brand: SJK ()
- Origin: China
- Material: Ceramic
- Certifications: RoHS, REACH, HF
- Minimum Packaging: 3000pcs/reel
- Moisture Sensitivity Level: Level 1
Technical Specifications
| Part Number | Output Frequency | Frequency Tolerance (@25C) | Load Capacitance | Operating Temperature | Storage Temperature | Shunt Capacitance (Max) | Driver Level (Typical) | ESR (Max) | Aging (1st Year @25C Max) | Frequency Stability Over Operating Temp |
| 7U48000E07AUCG | 48.000000MHz | 10 ppm | 7.5 PF | -40C to +85C | -40C to +125C | 3.0 PF | 10W | 40 | 3ppm/year | 30ppm max |
Reliability Test Specification
| No. | Test Item | Test Condition | Standard Requirement |
| 1 | Drop | Free fall from 55cm height onto a wooden board, 3 times. | Frequency change 5ppm, Resistance change 15% before and after test. |
| 2 | Vibration | Frequency: 10~55Hz, Amplitude: 1.5mm. Duration: 2 hours per direction (X, Y, Z). | Frequency change 5ppm, Resistance change 15% before and after test. |
| 3 | Thermal Shock | 25 cycles of high/low temperature. Low temp: -403C for 30 min, High temp: 852C for 30 min. Transition time: 3 min. | Frequency change 5ppm, Resistance change 15% before and after test. |
| 4 | Hermeticity | Helium leak test: 50.5Kg/cm, 120 minutes. | Leak rate 110-9Pa.m/s |
| 5 | Resistance to Soldering Heat | Wave crest temp: 260C10C, Duration: 155 seconds. | Frequency change 5ppm, Resistance change 15% before and after test. |
| 6 | Solderability Test | Temperature: 260C10C, Immersion time: 31 seconds. | Solder coverage 90% on pins. |
| 7 | High Temp. & Humidity | Temperature: 60C2C, Humidity: 90%~95%, Duration: 240 hours. | 1. Frequency change 5ppm, Resistance change 15% before and after test. 2. Product surface shall not be rusted. |
| 8 | High Temperature Test | Temperature: 85C2C, Duration: 240 hours. | Frequency change 5ppm, Resistance change 15% before and after test. |
| 9 | Low Temperature Test | Temperature: -40C2C, Duration: 240 hours. | Frequency change 5ppm, Resistance change 15% before and after test. |
| 10 | Life Test | Voltage: 5V, Temperature: 25, Duration: 1000 hours. | Frequency change 5ppm, Resistance change 15% before and after test. |
2304131800_SJK-7U48000E07AUCG_C524771.pdf
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