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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Operating Temperature:
-40℃~+85℃
Load Capacitance:
9pF
Frequency:
40MHz
Mfr. Part #:
7E40000E09UCG
Package:
SMD2520-4P
Key Attributes
Model Number:
7E40000E09UCG
Product Description
Product Overview
The QUARTZ CRYSTAL UNIT SERIES 7E is a seam-sealed ceramic, surface mount crystal unit with a 2.5*2.0mm package. It offers a center frequency of 40.000000MHz and operates in AT/Fundamental mode. This series is designed for applications requiring stable frequency performance over a wide operating temperature range and is available in a compact SMD package.
Product Attributes
- Brand: SJK ()
- Origin: Shenzhen, China
- Package: 2.5*2.0mm Surface Mount, Ceramic, Seam Sealed
- Certifications: RoHS, REACH, HF
- Minimum Packaging: 3000pcs/real
- Moisture Sensitivity Level: Level 1
Technical Specifications
| Parameter | Specification | Conditions |
|---|---|---|
| Center Frequency | 40.000000MHz | |
| Mode | AT/Fundamental | |
| Frequency Tolerance | 10 ppm max | at 25C |
| Load Capacitance (CL) | 9.0 PF | |
| Frequency Stability Over Operating Temperature | 10ppm max / 30ppm max | -20 C to +70 C / -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 |
Reliability Test Specification
| No. | Test Item | Test Condition | Standard Requirement |
|---|---|---|---|
| 1 | Drop | 55cm height, free fall onto wooden board, 3 times | Frequency change 5ppm, Resistance change 15% |
| 2 | Vibration | 10~55Hz, 1.5mm amplitude, 2 hours per axis (X, Y, Z) | Frequency change 5ppm, Resistance change 15% |
| 3 | Thermal Shock | 25 cycles: -403 (30 min) to 852 (30 min), 3 min transition | Frequency change 5ppm, Resistance change 15% |
| 4 | Hermeticity | Helium pressure: 50.5Kg/cm, 120 min | Leak rate 110-9Pa.m3/s |
| 5 | Resistance to Soldering Heat | Wave peak temp: 260C10C, 155 sec | Frequency change 5ppm, Resistance change 15% |
| 6 | Solderability Test | Temp: 260C10C, Immersion time: 31 sec | Solder coverage 90% |
| 7 | High Temperature & Humidity | Temp: 60C2C, Humidity: 90%~95%, 240 hours | Frequency change 5ppm, Resistance change 15%, No rust on surface |
| 8 | High Temperature Test | Temp: 85C2C, 240 hours | Frequency change 5ppm, Resistance change 15% |
| 9 | Low Temperature Test | Temp: -40C2C, 240 hours | Frequency change 5ppm, Resistance change 15% |
| 10 | Life Test | Voltage: 5V, Temp: 25, 1000 hours | Frequency change 5ppm, Resistance change 15% |
2207271530_SJK-7E40000E09UCG_C557159.pdf
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