<
>
Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Operating Temperature:
-40℃~+85℃
Load Capacitance:
18pF
Frequency:
48MHz
Mfr. Part #:
7U48000E18UCG
Package:
SMD3225-4P
Key Attributes
Model Number:
7U48000E18UCG
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 applications requiring precise frequency control and offers reliable performance across a wide operating temperature range.
Product Attributes
- Brand: SJK
- Origin: Shenzhen, China
- Material: Ceramic
- Certifications: RoHS, REACH, HF
- Package Type: 3.2*2.5mm Surface Mount
- Sealing: Seam Sealed
- Moisture Sensitivity Level: Level 1
- Minimum Packaging: 3000pcs/reel
Technical Specifications
| Part Number | Output Frequency | Frequency Tolerance (@25C) | Load Capacitance | Frequency Stability (Operating Temp) | Operating Temperature | Storage Temperature | Shunt Capacitance | Equivalent Series Resistance | Aging (1st Year @25C) |
| 7U48000E18UCG | 48.000000MHz | 10 ppm max | 18.0 PF | 10ppm max / -20C to +70C 30ppm max/ -40C to +85C | -40C to +85C | -40C to +125C | 3.0 PF Max | 40 Max | 3ppm/year |
Reliability Test Specification
| Test Item | Test Condition | Standard Requirement |
| Drop | Free fall from 55cm height onto wooden board, 3 times | Frequency change within 5ppm, resistance change within 15% before and after test |
| 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 |
| Thermal Shock | 25 cycles of high and low temperature in a test chamber. Low temp: -403C for 30 min, High temp: 852C for 30 min. Transition time: 3 min. | Frequency change within 5ppm, resistance change within 15% before and after test |
| Hermeticity | Helium pressure: 50.5Kg/cm, Helium pressurization time: 120 minutes | Leak rate: 110-9Pa.m3/s |
| Resistance to Soldering Heat | Wave crest temperature: 260C10C, Duration: 155 seconds | Frequency change within 5ppm, resistance change within 15% before and after test |
| Solderability Test | Temperature: 260C10C, Immersion time: 31 seconds | Solder coverage on pins 90% |
| High Temperature & Humidity | Temperature: 60C2C, Humidity: 90%~95%, Duration: 240 hours | 1. Frequency change within 5ppm, resistance change within 15% before and after test. 2. No rust on product surface. |
| High Temperature Test | Temperature: 85C2C, Duration: 240 hours | Frequency change within 5ppm, resistance change within 15% before and after test |
| Low Temperature Test | Temperature: -40C2C, Duration: 240 hours | Frequency change within 5ppm, resistance change within 15% before and after test |
| Life Test | Voltage: 5V, Temperature: 25, Duration: 1000 hours | Frequency change within 5ppm, resistance change within 15% before and after test |
2207271530_SJK-7U48000E18UCG_C524772.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
