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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Load Capacitance:
8pF
Operating Temperature:
-40℃~+85℃
Frequency:
12MHz
Mfr. Part #:
7U12000E08UCG
Package:
SMD3225-4P
Key Attributes
Model Number:
7U12000E08UCG
Product Description
QUARTZ CRYSTAL UNIT SERIES 7U, SEAM SEALED CERAMIC 3.2*2.5MM SURFACE MOUNT PACKAGE
This document outlines the specifications for the QUARTZ CRYSTAL UNIT SERIES 7U, 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
- Package Type: 3.2*2.5mm Surface Mount Ceramic
- Environmental Certifications: RoHS, REACH, HF
- Moisture Sensitivity Level: Level 1
- Minimum Packaging: 3000pcs/reel
Technical Specifications
| Parameter | Specification | Unit | Notes |
| Product Name | |||
| Model | SMD3225 | ||
| Part Number (P/N SJK) | 7U12000E08UCG | ||
| Output Frequency | 12.000000 | MHz | Center Frequency |
| Vibration Mode | AT/Fundamental Frequency | ||
| Frequency Tolerance | 10 | ppm max | at 25C |
| Load Capacitance (CL) | 8.0 | 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 | Standard atmospheric conditions | |
| Testing Condition - Relative Humidity | 40%~70% | Standard atmospheric conditions | |
| Measurement Equipment | S&A250B or equivalent |
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 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 and low temperature in a test chamber. Low temp: -403 for 30 min, High temp: 852 for 30 min. Temp change: 3 min. | Frequency change 5ppm, Resistance change 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 temperature: 260C10C, Time: 155 seconds | Frequency change 5ppm, Resistance change 15% before and after test |
| 6 | Solderability Test | Temperature: 260C10C, Immersion time: 31 seconds | Solder coverage 90% of lead surface |
| 7 | High Temperature & High Humidity | Temperature: 60C2C, Humidity: 90%~95%, Duration: 240 hours | 1. Frequency change 5ppm, Resistance change 15% before and after test. 2. No rust on product surface. |
| 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 |
2303170930_SJK-7U12000E08UCG_C5375503.pdf
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