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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Operating Temperature:
-40℃~+85℃
Load Capacitance:
20pF
Frequency:
26MHz
Mfr. Part #:
7U26000E20UCG
Package:
SMD3225-4P
Key Attributes
Model Number:
7U26000E20UCG
Product Description
Product Overview
The 7U Series Quartz Crystal Unit is a seam-sealed ceramic surface mount component with a 3.2x2.5mm package. It is designed for applications requiring precise frequency control.
Product Attributes
- Brand: SJK
- Origin: Shenzhen, China
- Certifications: RoHS, REACH, HF
- Package Type: 3.2x2.5mm Surface Mount
- Sealing: Seam Sealed Ceramic
- Moisture Sensitivity Level: Level 1
- Minimum Packaging: 3000pcs/reel
Technical Specifications
| Part Number (P/N SJK) | Output Frequency | Frequency Tolerance (@25C) | Load Capacitance (CL) | Frequency Stability (Operating Temp) | Operating Temperature | Storage Temperature | Shunt Capacitance (C0) | Driver Level (Typical) | ESR (Max) | Aging (1st Year @25C Max) |
| 7U26000E20UCG | 26.000000MHz | 10 ppm | 20.0 PF | 30ppm max | -40 C to +85 C | -40 C to +125 C | 3.0 PF | 10W | 40 | 3ppm/year |
Reliability Test Specification
| No. | Test Item | Test Condition | Standard Requirement |
| 1 | Drop | Free fall from 55cm height onto a wooden board, 3 times. | Frequency change within 5ppm, resistance change within 15% before and after test. |
| 2 | 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. |
| 3 | Thermal Shock | 25 cycles of high and low temperature: -403C for 30 min, 852C for 30 min. Temperature change every 3 minutes. | Frequency change within 5ppm, resistance change within 15% before and after test. |
| 4 | Hermeticity | Helium pressure: 50.5Kg/cm, duration: 120 minutes. | Leak rate: 110-9Pa.m3/s |
| 5 | Resistance to Soldering Heat | Wave crest temperature: 260C10C, duration: 155 seconds. | Frequency change within 5ppm, resistance change within 15% before and after test. |
| 6 | Solderability Test | Temperature: 260C10C, immersion time: 31 seconds. | Solder coverage on pins: 90%. |
| 7 | High Temperature High Humidity | Temperature: 60C2C, Humidity: 90%~95%, duration: 240 hours. | 1. Frequency change within 5ppm, resistance change within 15% before and after test. 2. Product surface should not be rusted. |
| 8 | High Temperature Test | Temperature: 85C2C, duration: 240 hours. | Frequency change within 5ppm, resistance change within 15% before and after test. |
| 9 | Low Temperature Test | Temperature: -40C2C, duration: 240 hours. | Frequency change within 5ppm, resistance change within 15% before and after test. |
| 10 | Life Test | Voltage: 5V, Temperature: 25, duration: 1000 hours. | Frequency change within 5ppm, resistance change within 15% before and after test. |
2304131800_SJK-7U26000E20UCG_C524751.pdf
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