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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Load Capacitance:
20pF
Operating Temperature:
-40℃~+85℃
Frequency:
12MHz
Mfr. Part #:
7U12000E20UCG
Package:
SMD3225-4P
Key Attributes
Model Number:
7U12000E20UCG
Product Description
Product Overview
The Series 7U Quartz Crystal Unit is a seam-sealed ceramic surface mount component with a 3.2*2.5mm package. It is designed for applications requiring stable frequency output and is suitable for a wide operating temperature range.
Product Attributes
- Brand: SJK
- Origin: Shenzhen, China
- Material: Ceramic
- Certifications: RoHS, REACH, HF
- Package Type: 3.2*2.5mm Surface Mount
- Minimum Packaging: 3000pcs/reel
- Moisture Sensitivity Level: Level 1
Technical Specifications
| Parameter | Value | Unit | Condition |
|---|---|---|---|
| Output Frequency | 12.000000 | MHz | Center Frequency |
| Vibration Mode | AT/Fundamental | ||
| Frequency Tolerance | 10 | ppm max | at 25C |
| Load Capacitance (CL) | 20.0 | PF | |
| Frequency Stability Over Operating Temperature | 30 | ppm max | |
| Operating Temperature Range | -40 to +85 | C | |
| Storage Temperature Range | -40 to +125 | C | |
| Shunt Capacitance (C0) | 3.0 | PF Max | |
| Driver Level (Typical) | 10 | W | |
| Equivalent Series Resistance (ESR) | 100 | Max | |
| Aging @25C (1st year Max) | 3 | ppm/year | |
| Testing Condition - Ambient Temperature | 255 | C | Standard atmospheric conditions |
| Testing Condition - Relative Humidity | 40~70 | % | Standard atmospheric conditions |
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 in a test chamber. Low temp: -403C for 30 min, High temp: 852C for 30 min. Transition time: 3 min. | Frequency variation within 5ppm, resistance variation within 15% before and after test |
| 4 | Hermeticity | Helium pressure: 50.5Kg/cm2, Pressurization time: 120 minutes | Leak rate: 110-9Pa.m3/s |
| 5 | Resistance to Soldering Heat | Wave crest temperature: 260C10C, Duration: 155 seconds | Frequency variation within 5ppm, resistance variation within 15% before and after test |
| 6 | Tinning Test | Temperature: 260C10C, Immersion time: 31 seconds | Tinning coverage of pins 90% |
| 7 | High Temperature High Humidity | Temperature: 60C2C, Humidity: 90%~95%, Duration: 240 hours | 1. Frequency variation within 5ppm, resistance variation within 15% before and after test. 2. Product surface shall not rust. |
| 8 | High Temperature Test | Temperature: 85C2C, Duration: 240 hours | Frequency variation within 5ppm, resistance variation within 15% before and after test |
| 9 | Low Temperature Test | Temperature: -40C2C, 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-7U12000E20UCG_C251604.pdf
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