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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Load Capacitance:
9pF
Operating Temperature:
-40℃~+85℃
Frequency:
50MHz
Mfr. Part #:
7U50000E09UCG
Package:
SMD3225-4P
Key Attributes
Model Number:
7U50000E09UCG
Product Description
Product Overview
The QUARTZ CRYSTAL UNIT SERIES 7U is a seam-sealed ceramic surface mount package, measuring 3.2*2.5mm. It is designed for reliable operation within a wide temperature range and offers precise frequency stability.
Product Attributes
- Brand: SJK
- Origin: China
- Certifications: RoHS, REACH, HF
- Package Type: 3.2*2.5mm Surface Mount Ceramic
- Minimum Packaging: 3000pcs/real
- Moisture Sensitivity Level: Level 1
Technical Specifications
| Item | Specification | Value |
| Output Frequency | Center Frequency | 50.000000MHz |
| Vibration Mode | AT/Fundamental | |
| Frequency Tolerance | at 25C | 10 ppm max |
| Load Capacitance (CL) | 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) | Max | 40 |
| Aging @25C | 1st year (Max) | 3ppm/year |
Reliability Test Specification
| No. | Test Item | Test Condition | Standard Requirement |
| 1 | Drop | Free drop from 55cm 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/low temperature: Low temp -403 (30 min), High temp 852 (30 min), transition 3 min | Frequency change within 5ppm, resistance change within 15% before and after test |
| 4 | Hermeticity | Helium pressure: 50.5Kg/cm, Duration: 120 min | Leak rate: 110-9Pa.m3/s |
| 5 | Soldering Heat Resistance | Wave crest temp: 260C10C, Duration: 155 sec | Frequency change within 5ppm, resistance change within 15% before and after test |
| 6 | Tinning Test | Temp: 260C10C, Immersion time: 31 sec | Tinning coverage of pins 90% |
| 7 | High Temp & Humidity | Temp: 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 rust. |
| 8 | High Temperature Test | Temp: 85C2C, Duration: 240 hours | Frequency change within 5ppm, resistance change within 15% before and after test |
| 9 | Low Temperature Test | Temp: -40C2C, Duration: 240 hours | Frequency change within 5ppm, resistance change within 15% before and after test |
| 10 | Life Test | Voltage: 5V, Temp: 25, Duration: 1000 hours | Frequency change within 5ppm, resistance change within 15% before and after test |
2207271530_SJK-7U50000E09UCG_C252257.pdf
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