<
>
Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Operating Temperature:
-40℃~+85℃
Load Capacitance:
12pF
Frequency:
20MHz
Mfr. Part #:
7U20000E12UCG
Package:
SMD3225-4P
Key Attributes
Model Number:
7U20000E12UCG
Product Description
QUARTZ CRYSTAL UNIT SERIES 7U
The 7U Series Quartz Crystal Unit is a seam-sealed ceramic surface mount component in a 3.2*2.5mm package. It is designed for applications requiring precise frequency control and offers a combination of stability and reliability.
Product Attributes
- Brand: SJK (implied by P N/ SJK)
- Origin: Shenzhen, China
- Package Type: 3.2*2.5mm Surface Mount Ceramic
- Sealing: Seam Sealed
- Certifications: RoHS, REACH, HF
- Minimum Packaging: 3000pcs/real
- Moisture Sensitivity Level: Level 1
Technical Specifications
| Parameter | Value | Condition |
|---|---|---|
| Output Frequency | 20.000000MHz | |
| Vibration Mode | AT/Fundamental Frequency | |
| Frequency Tolerance | 10 ppm max | at 25C |
| Load Capacitance (CL) | 12.0 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) | 60 Max | |
| Aging @25C 1st year (Max) | 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 orientation (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. Low temp: -403 for 30 min, High temp: 852 for 30 min. Temp change every 3 min. | Frequency change within 5ppm, resistance change within 15% before and after test |
| 4 | Hermeticity | Helium pressure: 50.5Kg/cm, Helium pressurization time: 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 and 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 |
2207271530_SJK-7U20000E12UCG_C524732.pdf
Request A Quote
Please Use Our Online Inquiry Contact Form Below If You Have Any Questions, Our Team Will Get Back To You As Soon As Possible
