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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Load Capacitance:
20pF
Operating Temperature:
-40℃~+85℃
Frequency:
27.12MHz
Mfr. Part #:
7U27120E20UCG
Package:
SMD3225-4P
Key Attributes
Model Number:
7U27120E20UCG
Product Description
Product Overview
The QUARTZ CRYSTAL UNIT SERIES 7U is a seam-sealed ceramic, 3.2*2.5mm surface mount package quartz crystal unit. It is designed for applications requiring precise frequency control. The product is RoHS, REACH, and HF compliant.
Product Attributes
- Brand: SJK
- Origin: Shenzhen, China
- Package: 3.2*2.5mm Surface Mount Ceramic
- Environmental Compliance: RoHS, REACH, HF
- Minimum Packaging: 3000pcs/reel
- Moisture Sensitivity Level: Level 1
Technical Specifications
| Parameter | Value | Unit | Condition |
| Product Name | QUARTZ CRYSTAL UNIT SERIES 7U | ||
| Part Number (P/N SJK) | 7U27120E20UCG | ||
| Output Frequency | 27.120000 | MHz | |
| Mode | AT/Fundamental Frequency | ||
| Frequency Tolerance | 10 | ppm max | at 25C |
| Load Capacitance (CL) | 20.0 | PF | |
| Frequency Stability Over Operating Temperature | 30 | ppm max | |
| Operating Temperature Range | -40 to +85 | C | |
| Storage Temperature Range | -40 to +125 | C | |
| Shunt Capacitance (C0) | 3.0 | PF Max | |
| Driver Level (Typical) | 10 | W | |
| Equivalent Series Resistance (ESR) | 40 | Max | |
| Aging @25C (1st year Max) | 3 | ppm/year | |
| Testing Condition - Ambient Temperature | 255 | Standard atmospheric conditions | |
| Testing Condition - Relative Humidity | 40%~70% | Standard atmospheric conditions | |
| Reliability Test - Drop | 55cm onto wood board, 3 times | Frequency change 5ppm, Resistance change 15% | |
| Reliability Test - Vibration | 10~55Hz, 1.5mm amplitude, 2 hours per axis (X,Y,Z) | Frequency change 5ppm, Resistance change 15% | |
| Reliability Test - Thermal Shock | 25 cycles, -40C (30min) to +85C (30min), 3 min transition | Frequency change 5ppm, Resistance change 15% | |
| Reliability Test - Hermeticity | He leak test: 50.5Kg/cm2, 120 min | Leak rate 110-9Pa.m3/s | |
| Reliability Test - Resistance to Soldering Heat | 260C10C, 155 sec | Frequency change 5ppm, Resistance change 15% | |
| Reliability Test - Solderability | 260C10C, 31 sec | Pin coverage 90% | |
| Reliability Test - High Temp. & Humidity | 60C2C, 90%~95% RH, 240 hours | Frequency change 5ppm, Resistance change 15%, No rust on surface | |
| Reliability Test - High Temperature Test | 85C2C, 240 hours | Frequency change 5ppm, Resistance change 15% | |
| Reliability Test - Low Temperature Test | -40C2C, 240 hours | Frequency change 5ppm, Resistance change 15% | |
| Reliability Test - Life Test | 5V, 25C, 1000 hours | Frequency change 5ppm, Resistance change 15% |
2304131800_SJK-7U27120E20UCG_C251624.pdf
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