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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Operating Temperature:
-40℃~+85℃
Load Capacitance:
12pF
Frequency:
27MHz
Mfr. Part #:
7U27000E12UCG
Package:
SMD3225-4P
Key Attributes
Model Number:
7U27000E12UCG
Product Description
Product Overview
The Series 7U is a seam-sealed ceramic surface mount quartz crystal unit with a 3.2*2.5mm package. It is designed for applications requiring precise frequency control.
Product Attributes
- Brand: SJK
- Origin: Shenzhen, China
- Certifications: RoHS, REACH, HF
- Package Type: 3.2*2.5mm Surface Mount Ceramic
- Minimum Packaging: 3000pcs/reel
- Moisture Sensitivity Level: Level 1
Technical Specifications
| Parameter | Specification | Conditions |
|---|---|---|
| Output Frequency | 27.000000MHz | |
| Mode | AT/Fundamental Frequency | |
| Frequency Tolerance | 10 ppm max | at 25C |
| Load Capacitance (CL) | 12.0 PF | |
| Frequency Stability Over Operating Temperature | 10ppm max | -20 C to +70 C |
| Frequency Stability Over Operating Temperature | 30ppm max | -40 C to +85 C |
| Operating Temperature Range | -40 C to +85 C | |
| Storage Temperature Range | -40 C to +125 C | |
| Shunt Capacitance (C0) | 3.0 PF Max | |
| Driver Level (Typical) | 10W | |
| Equivalent Series Resistance (ESR) | 40 Max | |
| Aging @25C (1st year Max) | 3ppm/year | |
| Testing Conditions | Ambient temperature: 255, Relative humidity: 40%~70% | Standard atmospheric conditions |
| Reliability Test - Drop | Frequency change 5ppm, Resistance change 15% | From 55cm height onto wooden board, 3 times |
| Reliability Test - Vibration | Frequency change 5ppm, Resistance change 15% | 10~55Hz, 1.5mm amplitude, 2 hours per axis (X, Y, Z) |
| Reliability Test - Thermal Shock | Frequency change 5ppm, Resistance change 15% | 25 cycles: -403 for 30 min, 852 for 30 min, 3 min transition |
| Reliability Test - Hermeticity | Leak rate 110-9Pa.m3/s | Helium pressure: 50.5Kg/cm2, 120 minutes |
| Reliability Test - Resistance to Soldering Heat | Frequency change 5ppm, Resistance change 15% | Peak temp: 260C10C, Time: 155 seconds |
| Reliability Test - Solderability | Pin coverage 90% | Temp: 260C10C, Immersion time: 31 seconds |
| Reliability Test - High Temp. & Humidity | Frequency change 5ppm, Resistance change 15% | 60C2, 90%~95% RH, 240 hours. Surface shall not rust. |
| Reliability Test - High Temperature | Frequency change 5ppm, Resistance change 15% | 85C2, 240 hours |
| Reliability Test - Low Temperature | Frequency change 5ppm, Resistance change 15% | -40C2, 240 hours |
| Reliability Test - Life Test | Frequency change 5ppm, Resistance change 15% | Voltage: 5V, Temp: 25, Time: 1000 hours |
2207271530_SJK-7U27000E12UCG_C251620.pdf
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