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Specifications
Normal temperature Frequency Tolerance:
±20ppm
Frequency Stability:
±20ppm
Operating Temperature:
-
Load Capacitance:
12.5pF
Frequency:
32.768kHz
Mfr. Part #:
7Q032768NW2
Package:
DT-38
Key Attributes
Model Number:
7Q032768NW2
Product Description
Product Overview
This specification applies to the RoHS compliance quartz crystal unit with a frequency of 32.768KHz, designed for use in crystal oscillator applications. The HD308 model offers reliable performance with defined electrical and reliability characteristics.
Product Attributes
- Brand: JIANGSU HD-CRYSTAL TECHNOLOGY CO., LTD
- Model: HD308
- Origin: China (implied by company name and location)
- Certifications: RoHS compliance
Technical Specifications
| Item | Specification | Condition | Standard |
| Electrical Characteristics | Mode of Vibration | +2X-cut , Fundamental | |
| Nominal frequency(F) | 32.768KHz | ||
| Load Capacitance(CL) | 12.5pF | ||
| Frequency Tolerance at 25 | 20ppm | ||
| Frequency Temperature Stability | -0.04* 10-6/2 Max | ||
| Series Resistance(Rr) | 50 K Max | ||
| Quality Factor(Q) | 60K TYP | ||
| Turnover Temperature(To) | 25 5 | ||
| Operation Temperature | -20~ +70 | ||
| Preservation Temperature | -40~ +85 | ||
| Shunt Capacitance(C0) | 0.8PF Typical | ||
| Capacitance Ratio(C0/C1) | 500 Typical | ||
| Insulation Resistance | at DC 100V10V | 500M | |
| Drive Level | 1 W Max | ||
| Reliability Specification | Drop characteristics | Free drop from 75cm height on a hard wooden board for 3 times. (Board is thickness more than 30 mm.) | Frequency change:5ppm Rr as specification |
| Mechanical shock | Device are shocked to half sine wave (1000g) three mutually perpendicular axes each 3 times | Frequency change:5ppm Rr as specification | |
| Shake characteristics | Shake frequency 10~55Hz, cyc1~2 minutes, swing 1.5mm, direction x/y/z, all 30 minutes, test after 1 hours. | Frequency change:5ppm Rr as specification | |
| Humidity characteristics | +402 & 90%~95% R.H. 250 hours | Frequency change:5ppm Rr as specification | |
| Low temperature characteristics | -402, 250 hours, put in room temperature, test after 1 hours. | Frequency change:5ppm Rr as specification | |
| High temperature characteristics | +852, 250 hours, put in room temperature, test after 1 hours. | Frequency change:5ppm Rr as specification | |
| Temperature cycling | -303/303 min~+852/303min, 5 cycles | Frequency change:5ppm Rr as specification | |
| Refluence examination | Frequency change:5ppm Rr as specification |
2409302201_HD-7Q032768NW2_C655213.pdf
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