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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Operating Temperature:
-40℃~+85℃
Load Capacitance:
8pF
Frequency:
38.4MHz
Mfr. Part #:
7E38400E08UCG
Package:
SMD2520-4P
Key Attributes
Model Number:
7E38400E08UCG
Product Description
QUARTZ CRYSTAL UNIT SERIES 7E, SEAM SEALED CERAMIC 2.5*2.0MM SURFACE MOUNT PACKAGE
The Series 7E is a seam-sealed ceramic surface mount quartz crystal unit with a 2.5*2.0mm package. It is designed for various electronic applications requiring precise frequency control.
Product Attributes
- Brand: SJK
- Origin: Shenzhen, China
- Package: 2.5*2.0mm Surface Mount Ceramic
- Certifications: RoHS, REACH, HF
- Minimum Packaging: 3000pcs/reel
- Moisture Sensitivity Level: Level 1
Technical Specifications
| Part Number (P/N SJK) | Output Frequency | Mode | Frequency Tolerance (at 25C) | Load Capacitance (CL) | Frequency Stability Over Operating Temp. | Operating Temperature Range | Storage Temperature Range | Shunt Capacitance (C0) | Driver Level (Typical) | Equivalent Series Resistance (ESR) | Aging @ 25C (1st year, Max) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 7E38400E08UCG | 38.400000MHz | AT/Fundamental | 10 ppm max | 8.0 PF | 10ppm max / -20C to +70C; 30ppm max/ -40C to +85C | -40C to +85C | -40C to +125C | 3.0 PF Max | 10W | 40 Max | 3ppm/year |
Reliability Test Specification
| No. | Test Item | Test Conditions | Standard Requirements |
|---|---|---|---|
| 1 | Drop | Free fall from 55cm height onto a wooden board, 3 times | Frequency change within 5ppm, Resistance change within 15% before and after test |
| 2 | Vibration | Frequency: 10~55Hz, Amplitude: 1.5mm, Time: 2 hours per each of the three orientations (X, Y, Z) | Frequency change within 5ppm, Resistance change within 15% before and after test |
| 3 | Thermal Shock | 25 cycles of high and low temperature in a test chamber. Low temp: -403C for 30 min, High temp: 852C for 30 min. Temp change: 3 min. | Frequency change within 5ppm, Resistance change within 15% before and after test |
| 4 | Hermeticity | Helium pressure: 50.5Kg/cm, Helium pressurization time: 120 min | Leak rate: 110-9Pa.m3/s |
| 5 | Resistance to Soldering Heat | Wave peak temp: 260C10C, Time: 155 sec | Frequency change within 5ppm, Resistance change within 15% before and after test |
| 6 | Solderability Test | Temperature: 260C10C, Immersion time: 31 sec | Solder coverage on pins: 90% |
| 7 | High Temp & Humidity | Temperature: 60C2C, Humidity: 90%~95%, Duration: 240 hours | 1. Frequency change within 5ppm, Resistance change within 15% before and after test. 2. No rust on product surface. |
| 8 | High Temperature Test | Temperature: 85C2C, Duration: 240 hours | Frequency change within 5ppm, Resistance change within 15% before and after test |
| 9 | Low Temperature Test | Temperature: -40C2C, Duration: 240 hours | Frequency change within 5ppm, Resistance change within 15% before and after test |
| 10 | Life Test | Voltage: 5V, Temperature: 25, Duration: 1000 hours | Frequency change within 5ppm, Resistance change within 15% before and after test |
Contact Information:
Phone: 0755-82507042
Fax: 0755-88353718
Website: http://www.q-crystal.com.cn
2207271530_SJK-7E38400E08UCG_C524679.pdf
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