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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Operating Temperature:
-40℃~+85℃
Load Capacitance:
8pF
Frequency:
25MHz
Mfr. Part #:
7U25000E08UCG
Package:
SMD3225-4P
Key Attributes
Model Number:
7U25000E08UCG
Product Description
Product Overview
The Series 7U Quartz Crystal Unit is a seam-sealed ceramic, 3.2*2.5mm surface mount package designed for reliable frequency control. It offers precise frequency stability and a wide operating temperature range, making it suitable for various electronic applications.
Product Attributes
- Brand: SJK
- Origin: Shenzhen, China
- Certifications: RoHS, REACH, HF
- Package Type: 3.2*2.5mm Surface Mount
- Sealing: Seam Sealed Ceramic
- Minimum Packaging: 3000pcs/real
- Moisture Sensitivity Level: Level 1
Technical Specifications
| Parameter | Specification | Conditions |
|---|---|---|
| Output Frequency | 25.000000MHz | |
| Mode | AT/Fundamental Frequency | |
| Frequency Tolerance | 10 ppm max | at 25C |
| Load Capacitance (CL) | 8.0 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 | |
| Drop Test | Frequency change 5ppm, Resistance change 15% | 55cm height onto wood board, 3 times |
| Vibration Test | Frequency change 5ppm, Resistance change 15% | 10~55Hz, 1.5mm amplitude, 2 hours per axis (X, Y, Z) |
| Thermal Shock Test | Frequency change 5ppm, Resistance change 15% | 25 cycles: -403C (30min) to 852C (30min), 3 min transition |
| Hermeticity Test | Leak rate 110-9Pa.m3/s | Helium pressure: 50.5Kg/cm2, 120 min |
| Resistance to Soldering Heat | Frequency change 5ppm, Resistance change 15% | Wave crest temperature: 260C10C, 155 seconds |
| Solderability Test | Pin coverage 90% | Temperature: 260C10C, Immersion time: 31 seconds |
| High Temperature and Humidity Test | Frequency change 5ppm, Resistance change 15%, No rust on surface | 60C2C, 90%~95% RH, 240 hours |
| High Temperature Test | Frequency change 5ppm, Resistance change 15% | 85C2C, 240 hours |
| Low Temperature Test | Frequency change 5ppm, Resistance change 15% | -40C2C, 240 hours |
| Life Test | Frequency change 5ppm, Resistance change 15% | Voltage: 5V, Temperature: 25, Time: 1000 hours |
2207271530_SJK-7U25000E08UCG_C524744.pdf
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