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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±20ppm
Operating Temperature:
-
Load Capacitance:
20pF
Frequency:
31.25MHz
Mfr. Part #:
7B031250R01
Package:
SMD3225-4P
Key Attributes
Model Number:
7B031250R01
Product Description
Product Overview
This specification applies to the RoHS compliant quartz crystal unit with a frequency of 31.25MHz, designed for crystal oscillator applications. It features a SMD3225-4pads construction and operates in the fundamental mode.
Product Attributes
- Brand: JIANGSU HD-CRYSTAL TECHNOLOGY CO., LTD
- Product Name: SMD3225-4 Crystal Resonator
- Certifications: RoHS
Technical Specifications
| Item | Specification | Value |
| Nominal Frequency (f) | 31.25MHz | |
| Load Capacitance (CL) | 20pF | |
| Frequency Tolerance (f/f) | 10ppm | |
| Frequency Temperature Stability | 20ppm | |
| Resonance Resistance (ohm) | Max | 25 ohms |
| Oscillation Mode | Fundamental mode | |
| Shunt Capacitance (C0) | Max | 2pF |
| Drive Level (DL) | Max | 100W |
| Operating Temperature Range (TOPR) | -20 to +70C | |
| Storage Temperature Range (TSTG) | -55 to +125C | |
| Insulation Resistance (IR) | 500M ohms | |
| Aging (fA) | Max | 3ppm/Year |
Reliability Specification
| Item | Condition | Standard |
| Drop characteristics | Free drop from 75cm height on a hard wooden board for 3 times. | 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 |
Dimensions
| View | Dimension (mm) |
| Overall (L x W) | 3.20 0.10 x 2.50 0.10 |
| Height | 0.70 MAX |
| Pad Pitch (X) | 1.20.10 |
| Pad Width (Y) | 0.70.10 |
| Pad Size (A x B) | 0.65 0.10 x 0.9 0.10 |
| Internal View (L x W) | 1.4 x 1.2 |
| Internal View (L x W) | 1.2 x 0.8 |
Packing Specification
| Item | Quantity |
| Pieces per Reel | 3000Pcs |
2411121141_HD-7B031250R01_C655021.pdf
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