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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Operating Temperature:
-40℃~+85℃
Load Capacitance:
12pF
Frequency:
25MHz
Mfr. Part #:
7E25000E12UCG
Package:
SMD2520-4P
Key Attributes
Model Number:
7E25000E12UCG
Product Description
QUARTZ CRYSTAL UNIT SERIES 7E
The Series 7E is a seam-sealed ceramic surface mount quartz crystal unit with a 2.5*2.0mm package. It is designed for applications requiring stable frequency output within a specified operating temperature range. The product is RoHS, REACH, and HF compliant.
Product Attributes
- Brand: SJK ()
- Origin: Shenzhen, China
- Material: Ceramic, Seam Sealed
- Package: 2.5*2.0mm Surface Mount
- Certifications: RoHS, REACH, HF
Technical Specifications
| Parameter | Specification | Conditions |
|---|---|---|
| Output Frequency | 25.000000MHz | |
| Vibration Mode | AT/Fundamental | |
| Frequency Tolerance | 10 ppm max | at 25C |
| Load Capacitance (CL) | 12.0 PF | |
| Frequency Stability (Operating Temp) | 10ppm max / 30ppm max | -20 C to +70 C / -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) | 60 Max | |
| Aging @25C (1st year Max) | 3ppm/year | |
| Testing Conditions | Ambient temperature: 255, Relative humidity: 40%~70% | Standard atmospheric conditions |
| Minimum Packaging | 3000pcs/reel | |
| Moisture Sensitivity Level | Level 1 |
Reliability Test Specification
| No. | Test Item | Test Condition | Standard Requirement |
|---|---|---|---|
| 1 | Drop | 55cm height, free fall onto wooden board, 3 times | Frequency change 5ppm, Resistance change 15% |
| 2 | Vibration | 10~55Hz, 1.5mm amplitude, 2 hours per axis (X, Y, Z) | Frequency change 5ppm, Resistance change 15% |
| 3 | Thermal Shock | 25 cycles, -403 for 30 min, 852 for 30 min, 3 min transition | Frequency change 5ppm, Resistance change 15% |
| 4 | Hermeticity | Helium pressure: 50.5Kg/cm, 120 min | Leak rate 110-9Pa.m3/s |
| 5 | Resistance to Soldering Heat | Peak temp: 260C10C, 155 sec | Frequency change 5ppm, Resistance change 15% |
| 6 | Solderability Test | Temp: 260C10C, Immersion time: 31 sec | Wetted area coverage 90% |
| 7 | High Temperature High Humidity | Temp: 60C2C, Humidity: 90%~95%, 240 hours | Frequency change 5ppm, Resistance change 15%, No surface rust |
| 8 | High Temperature Test | Temp: 85C2C, 240 hours | Frequency change 5ppm, Resistance change 15% |
| 9 | Low Temperature Test | Temp: -40C2C, 240 hours | Frequency change 5ppm, Resistance change 15% |
| 10 | Life Test | Voltage: 5V, Temp: 25, 1000 hours | Frequency change 5ppm, Resistance change 15% |
2207271530_SJK-7E25000E12UCG_C524667.pdf
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