Features
Applications
The 3mm×9mm MHz crystal (ATLF309) is ideal for industrial automation, automotive electronics (e.g., ECUs, sensors), smart meters, and wireless modules (LoRa/ZigBee), delivering stable clock references.
Type :
AD4Model :
ATLF309Package size :
3.0*9.0mmFrequency :
4.000M~6.000M3MM*9MM AT-39 Cylinder Quartz Crystal ATLF309
A-CRYSTAL's 3mm×9mm MHz quartz crystal resonator(Φ3.0×9.0mm metal package) supports Fundamental/3rd/5th Overtone modes with 4.000-6.000MHz frequency range and ±10ppm to ±50ppm tolerance(at 25℃±3℃). Features include: customizable load capacitance(from 6pF), excellent temperature stability(±30ppm~±50ppm), wide operating temperature(-20℃~70℃, extendable to -40℃~85℃), 100μW drive level(max 200μW), ≥500MΩ insulation resistance(100VDC), and ±5ppm/year aging(first year). Ideal for industrial controls, automotive electronics and communication equipment. RoHS compliant with AEC-Q200 options available.
1. ELECTRICAL SPECIFICATIONS
| No. | Item | Symb | Electrical Specification | Remark | |||
| Min. | Type | Max. | Units | ||||
| 1 | Nominal Frequency | F0 | 4.000 | 6.000 | MHz | ||
| 2 | Mode of Vibration | |
|||||
| 3 | Frequency Tolerance | △F/F0 | ±10 | ±30 | ±50 | ppm | at 25℃±3℃ |
| 4 | Operating Temperature Range | TOPR | -20~70 -40~85 |
℃ | |||
| 5 | Frequency Stability | TC | ±30 | ±50 | ppm | ||
| 6 | Storage Temperature | TSTG | -40 | 85 | ℃ | ||
| 7 | Load capacitance | L | 6~specify | pF | |||
| 8 | Equivalent Series Resistance | ESR | Seepage 1 | Ω | |||
| 9 | Drive Level | DL | 100 | 200 | μW | ||
| 10 | Insulation Resistance | IR | 500 | MΩ | At 100VDC | ||
| 11 | Shunt Capacitance | Co | 5 | pF | |||
| 12 | Aging Per Year | Fa | -5 | - | 5 | ppm | First Yea |
| 13 | Package type | Φ3.0*9.0 | |||||
2. Dimension (Unit: mm)

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