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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Operating Temperature:
-40℃~+85℃
Load Capacitance:
9pF
Frequency:
25MHz
Mfr. Part #:
7E25000E09UCG
Package:
SMD2520-4P
Key Attributes
Model Number:
7E25000E09UCG
Product Description
Product Overview
The QUARTZ CRYSTAL UNIT SERIES 7E is a seam-sealed ceramic surface mount package measuring 2.5*2.0mm. It is designed for applications requiring precise frequency control.
Product Attributes
- Brand: SJK
- Origin: Shenzhen, China
- Certifications: RoHS, REACH, HF
- Package Type: 2.5*2.0mm Surface Mount, Ceramic, Seam Sealed
- Minimum Packaging: 3000pcs/reel
- Moisture Sensitivity Level: Level 1
Technical Specifications
| Parameter | Value | Condition |
|---|---|---|
| Output Frequency | 25.000000MHz | Center Frequency |
| Vibration Mode | AT/Fundamental | |
| Frequency Tolerance | 10 ppm max | at 25C |
| Load Capacitance | 9.0 PF | |
| Frequency Stability Over Operating Temperature | 10ppm max / -20 C to +70 C 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) | 60 Max | |
| Aging @25C (1st year Max) | 3ppm/year |
Reliability Test Specification
| Test Item | Test Condition | Standard Requirement |
|---|---|---|
| Drop | Free fall from 55cm height onto a wooden board, 3 times | Frequency change within 5ppm, resistance change within 15% before and after test |
| Vibration | Frequency: 10~55Hz, Amplitude: 1.5mm, Duration: 2 hours per direction (X, Y, Z) | Frequency change within 5ppm, resistance change within 15% before and after test |
| Thermal Shock | 25 cycles of high and low temperature, -403C for 30 min, 852C for 30 min, 3 min transition | Frequency change within 5ppm, resistance change within 15% before and after test |
| Hermeticity | Helium pressure: 50.5Kg/cm, Duration: 120 min | Leak rate 110-9Pa.m3/s |
| Resistance to Soldering Heat | Wave crest temp: 260C10C, Duration: 155 sec | Frequency change within 5ppm, resistance change within 15% before and after test |
| Solderability | Temperature: 260C10C, Immersion time: 31 sec | Solder coverage on pins 90% |
| High Temperature and Humidity | Temperature: 60C2C, Humidity: 90%~95%, Duration: 240 hours | Frequency change within 5ppm, resistance change within 15% before and after test; No rust on product surface |
| High Temperature Test | Temperature: 85C2C, Duration: 240 hours | Frequency change within 5ppm, resistance change within 15% before and after test |
| Low Temperature Test | Temperature: -40C2C, Duration: 240 hours | Frequency change within 5ppm, resistance change within 15% before and after test |
| Life Test | Voltage: 5V, Temperature: 25, Duration: 1000 hours | Frequency change within 5ppm, resistance change within 15% before and after test |
2207271530_SJK-7E25000E09UCG_C557155.pdf
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