Eaton’s precision timing devices are passive components that create reliable clock signals through the piezoelectric effect and are ideal for mobile phones, wearables, and AV/PC applications for continuous performance and accuracy. These devices are used in various markets including automotive and consumer electronics, and industrial systems.
Eaton’s portfolio consists of crystal resonators which play a crucial role in maintaining accurate timekeeping and synchronization across diverse technologies and devices. Whether it’s a smartwatch, navigation system, or communication equipment, crystal-based timing devices ensure precise operation and reliable performance.
E9X: 0806 (2016 metric) 16 MHz to 60 MHz surface mount crystal resonator
E2X: 1008 (2520 metric) 16 MHz to 54 MHz surface mount crystal resonator
E3X: 1210 (3225 metric) 12 MHz to 54 MHz surface mount crystal resonator
E5X: 2012 (5032 metric) 8 MHz to 48 MHz surface mount crystal resonator
E9XA: 0806 (2016 metric) 16 MHz to 50 MHz automotive surface mount crystal resonator
E3XA: 1210 (3225 metric) 12 MHz to 48 MHz automotive surface mount crystal resonator
E3K: 1206 (3215 metric) 32.768 kHz surface mount crystal resonator
Crystal resonators are made of high stability piezoelectric quartz crystal that function as a mechanical resonator. They can generate clock signals which are essential for ICs and LSIs to operate, achieving high stability, adjustment-free performance and miniaturization. At present, crystal resonators are found in a broad range of applications such as communication satellites, mobile communication devices, automotive electronics, TVs, computing and smart home information appliances.
Frequency stability: This ensures a crystal maintains a consistent output frequency over time, despite temperature variations and aging. It’s essential for applications requiring long-term precision.
Temperature range: Crystals must perform over the device’s entire operating temperature range. For products used in varying environments, a wide temperature range ensures reliability.
Size and packaging: The physical dimensions of the crystal might be critical for portable and space-constrained applications. Smaller crystals are beneficial for miniaturised electronic devices. Some crystal manufacturers also integrate LDO power circuitry to further reduce overall product size.
Aging – frequency shift over time: For the most reliable long-term performance to ensure a system stays within its operating tolerances the aging of crystals should be considered, choosing a device with the right aging tolerances at the onset can reduce costs by not having to over spec a device.
Long-term reliability: Crystals with high reliability reduce maintenance costs and extend the product lifecycle, which is vital for mission-critical systems.
Shock and vibration resistance: Important for military, aerospace, industrial and automotive applications where crystals may be subjected to harsh conditions.
This defines the cutting type of the crystal blank utilized in the crystal resonator. AT-cut is the most commonly used cutting type in crystal resonator.
The temperature characteristics are dependent to the cutting types and angles.
This defines the moisture sensitivity level of the product according to the definition of IPC/JEDEC J-STD-020. The higher the level number, the easier it is to absorb moisture.
The crystal generally defines to level 1 due to the hermeticity by using ceramic package.
This defines the operating temperature range of a crystal that can work under a specified stability (ppm) within a minimum to maximum temperature range. This is an external factor that most affect the crystal’s frequency stability.
This temperature stability is related to the cutting angle of the crystal blank and can be manipulated by adjusting the cutting angle. Basically, the wider the temperature range, the more difficult to maintain the stability.
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E9X: 0806 (2016 metric) 16 MHz to 60 MHz surface mount crystal resonator
E2X: 1008 (2520 metric) 16 MHz to 54 MHz surface mount crystal resonator
E3X: 1210 (3225 metric) 12 MHz to 54 MHz surface mount crystal resonator
E5X: 2012 (5032 metric) 8 MHz to 48 MHz surface mount crystal resonator
E9XA: 0806 (2016 metric) 16 MHz to 50 MHz automotive surface mount crystal resonator
E3XA: 1210 (3225 metric) 12 MHz to 48 MHz automotive surface mount crystal resonator
E3K: 1206 (3215 metric) 32.768 kHz surface mount crystal resonator
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