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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Operating Temperature:
-40℃~+85℃
Load Capacitance:
20pF
Frequency:
20MHz
Mfr. Part #:
7U20000E20UCG
Package:
SMD3225-4P
Key Attributes
Model Number:
7U20000E20UCG
Product Description
Product Overview
The QUARTZ CRYSTAL UNIT SERIES 7U is a seam-sealed ceramic surface mount crystal oscillator in a 3.2*2.5mm package. It offers stable frequency performance across a wide operating temperature range, making it suitable for various electronic applications.
Product Attributes
- Brand: SJK
- Origin: Shenzhen, China
- Material: Ceramic
- Package: 3.2*2.5mm Surface Mount
- Certifications: RoHS, REACH, HF
- Minimum Packaging: 3000pcs/real
- Moisture Sensitivity Level: Level 1
Technical Specifications
| Parameter | Specification |
| Output Frequency | 20.000000MHz |
| Vibration Mode | AT/Fundamental |
| Frequency Tolerance (@ 25C) | 10 ppm max |
| Load Capacitance (CL) | 20.0 PF |
| Frequency Stability Over Operating Temperature | 10ppm max / -20 C to +70 C; 30ppm max/ -40 C to +85 C |
| Operating Temperature Range | -40C to +85C |
| Storage Temperature Range | -40 C to +125 C |
| Shunt Capacitance (C0) | 3.0 PF Max |
| Driver Level (Typical) | 10W |
| Equivalent Series Resistance (ESR) | 60 Max |
| Aging @ 25C (1st year Max) | 3ppm/year |
| Testing Conditions | Ambient temperature: 255, Relative humidity: 40%~70% |
| Reliability Test - Drop | Frequency change 5ppm, Resistance change 15% after 3 drops from 55cm |
| Reliability Test - Vibration | Frequency change 5ppm, Resistance change 15% after 2 hours per axis (10~55Hz, 1.5mm amplitude) |
| Reliability Test - Thermal Shock | Frequency change 5ppm, Resistance change 15% after 25 cycles (-40C to +85C) |
| Reliability Test - Hermeticity | Leakage rate 110-9Pa.m3/s (Helium pressure: 50.5Kg/cm2, 120 min) |
| Reliability Test - Resistance to Soldering Heat | Frequency change 5ppm, Resistance change 15% (Peak temp: 260C10C, Time: 155 sec) |
| Reliability Test - Solderability | Pin solder coverage 90% (Temp: 260C10C, Immersion time: 31 sec) |
| Reliability Test - High Temp/High Humidity | Frequency change 5ppm, Resistance change 15% (60C2C, 90%~95% RH, 240 hours) |
| Reliability Test - High Temperature | Frequency change 5ppm, Resistance change 15% (85C2C, 240 hours) |
| Reliability Test - Low Temperature | Frequency change 5ppm, Resistance change 15% (-40C2C, 240 hours) |
| Reliability Test - Life Test | Frequency change 5ppm, Resistance change 15% (5V, 25, 1000 hours) |
2207271530_SJK-7U20000E20UCG_C524735.pdf
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