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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Operating Temperature:
-40℃~+85℃
Load Capacitance:
20pF
Frequency:
16.667MHz
Mfr. Part #:
7U16667E20UCG
Package:
SMD3225-4P
Key Attributes
Model Number:
7U16667E20UCG
Product Description
Product Overview
The QUARTZ CRYSTAL UNIT SERIES 7U is a seam-sealed ceramic surface mount package measuring 3.2*2.5mm. It is designed for applications requiring precise frequency control.
Product Attributes
- Brand: SJK
- Origin: Shenzhen, China
- Certifications: RoHS, REACH, HF
- Package Type: Ceramic Surface Mount
- Sealing: Seam Sealed
- Minimum Packaging: 3000pcs/real
- Moisture Sensitivity Level: Level 1
Technical Specifications
| Part Number (P/N) | Output Frequency | Frequency Tolerance (at 25C) | Load Capacitance (CL) | Frequency Stability (Operating Temp) | Operating Temperature | Storage Temperature | Shunt Capacitance (C0) | Driver Level (Typical) | Equivalent Series Resistance (ESR) | Aging (1st year @25C) |
| 7U16667E20UCG | 16.667000MHz | 10 ppm max | 20.0 PF | 30ppm max | -40 C to +85 C | -40 C to +125 C | 3.0 PF Max | 10W | 60 Max | 3ppm/year Max |
Testing Conditions
- Standard Atmospheric Conditions: Ambient temperature: 255, Relative humidity: 40%~70%
- Measurement Equipment: S&A250B or equivalent
Reliability Test Specification
| No. | Test Item | Test Condition | Standard Requirement |
| 1 | Drop | Free fall from 55cm height onto a wooden board, 3 times | Frequency variation within 5ppm, resistance variation within 15% before and after test |
| 2 | Vibration | Frequency: 10~55Hz, Amplitude: 1.5mm, Duration: 2 hours per direction (X, Y, Z) | Frequency variation within 5ppm, resistance variation within 15% before and after test |
| 3 | Thermal Shock | 25 cycles of high and low temperature. Low temp: -403 for 30 min, High temp: 852 for 30 min. Temp change every 3 min. | Frequency variation within 5ppm, resistance variation within 15% before and after test |
| 4 | Hermeticity | Helium pressure: 50.5Kg/cm, Helium pressurization time: 120 minutes | Leak rate: 110-9Pa.m3/s |
| 5 | Resistance to Soldering Heat | Wave crest temp: 260C10C, Duration: 155 seconds | Frequency variation within 5ppm, resistance variation within 15% before and after test |
| 6 | Solderability Test | Temperature: 260C10C, Immersion time: 31 seconds | Solder coverage on pins: 90% |
| 7 | High Temperature and Humidity | Temperature: 60C2, Humidity: 90%~95%, Duration: 240 hours | 1. Frequency variation within 5ppm, resistance variation within 15% before and after test. 2. No rust on product surface. |
| 8 | High Temperature Test | Temperature: 85C2, Duration: 240 hours | Frequency variation within 5ppm, resistance variation within 15% before and after test |
| 9 | Low Temperature Test | Temperature: -40C2, Duration: 240 hours | Frequency variation within 5ppm, resistance variation within 15% before and after test |
| 10 | Life Test | Voltage: 5V, Temperature: 25, Duration: 1000 hours | Frequency variation within 5ppm, resistance variation within 15% before and after test |
2304131800_SJK-7U16667E20UCG_C524730.pdf
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