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Glass sealed SMD (Surface Mount Device) crystal units with 8.0x4.5mm dimensions (often referred to by their case codes, such as
SMD 8045 or similar manufacturer-specific codes) are compact, high-precision frequency control devices used extensively in modern electronics. They offer high reliability due to their completely sealed construction. Key Features and SpecificationsÂ
- Dimensions: Standardized footprint of approximately 8.0mm in length and 4.5mm in width.
- Sealing Type: Glass sealing ensures a hermetic, reliable enclosure that protects the quartz crystal element from environmental factors like moisture.
- Mounting Type: Designed for surface mount technology (SMD), making them suitable for modern, automated PCB assembly processes (including IR reflow soldering).
- Frequency Range: These units are available across a wide range of frequencies, typically from a few MHz up to over 100 MHz.
- Pins/Pads: Often feature 2 or 4 pads/pins for connection to the circuit board.
- Reliability: Known for high precision and stability, with typical frequency tolerances around ±20ppm to ±30ppm.
- Non-Polarized: Crystal oscillators themselves are not polarized, meaning they can be oriented in any direction on the PCB (if they are a 2-pin passive crystal).Â
Common ApplicationsÂ
These crystal units are widely used in applications where precise timing is essential, including:Â
- Mobile telecommunications
- Automotive electronics
- Notebooks and computer peripherals (e.g., hard disks)
- PC cards
- Audio devices and MP3 players
- Microcontroller clock sourcesÂ
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SMD Quartz Crystal Units,Surface Mount MHz- ... - Acrystals
zhejiang a-crystal electronic technology co.,ltd.
https://www.acrystals.com › smd-crystal-units
zhejiang a-crystal electronic technology co.,ltd.
https://www.acrystals.com › smd-crystal-units
Explore our high-precision SMD Crystal Units. They are small, reliable, and cost-effective. Ideal for IoT, wearable devices, and tough environments.
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What is the value of a crystal oscillator?
A typical Q value for a quartz oscillator ranges from 104 to 106, compared to perhaps 102 for an LC oscillator. The maximum Q for a high stability quartz oscillator can be estimated as Q = 1.6 × 107/f, where f is the resonant frequency in megahertz.
Crystal oscillator - Wikipedia
Wikipedia, the free encyclopedia
https://en.wikipedia.org › wiki › Crystal_oscillator
Wikipedia, the free encyclopedia
https://en.wikipedia.org › wiki › Crystal_oscillator
What is the price of 4 MHz crystal oscillator?
4 MHz Crystal Oscillator at ₹ 3.5/piece | Crystal Oscillators in New Delhi | ID: 19702795155.
4 MHz Crystal Oscillator - IndiaMART
IndiaMART
https://www.indiamart.com › proddetail › 4-mhz-crystal-...
IndiaMART
https://www.indiamart.com › proddetail › 4-mhz-crystal-...
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Smd Quartz Crystal Resonator Factory ...
Made-in-China.com
https://www.made-in-china.com › factory › smd-quartz...
Made-in-China.com
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SMD5032 Glass Sealed Crystal. US$0.12 - 0.15 · Yuechung International Corp. (YIC). Taiwan ...
High-Reliability Quartz Crystals
Microchip Technology
https://www.microchip.com › ... › Space Oscillators
Microchip Technology
https://www.microchip.com › ... › Space Oscillators
We design and manufacture cold weld and resistance weld crystals for a wide variety of space, military and high-reliability applications.Read more
Missing: Glass ‎8.0X4.5mm
SMD Crystals
PMD Way
https://pmdway.com › collections › smd-crystals
PMD Way
https://pmdway.com › collections › smd-crystals
Quality 12Mhz SMD Crystal Oscillators in packs of ten from PMD Way with free delivery worldwide. $10.95. No reviews. 12Mhz SMD Crystal Oscillator - 10 Pack. Now ...Read more
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Missing: Glass ‎Sealed ‎Units ‎8.0X4.5mm
SMD Crystal Resonators (ceramic and metal package
FCD-Tech
https://www.fcd-tech.com › quartz-crystals › smd-crystal...
FCD-Tech
https://www.fcd-tech.com › quartz-crystals › smd-crystal...
For Surface Mounting, FCD-Tech offers a range of various types SMD Crystals. Available package styles are: Small size 4 pad SMD sealed ceramic package.Read more
Missing: Glass ‎Units ‎8.0X4.5mm
smd resonator factories & companies
VWM - project
https://vwm-project.de › ... › Resonator
VWM - project
https://vwm-project.de › ... › Resonator
Looking for smd resonator factory direct sale? You can buy factory price smd resonator from a great list of reliable China smd resonator manufacturers, ...
Euroquartz 8MHz Crystal ±30ppm SMD 2-Pin 12.4 x 4.5 ...
RS Components
https://uk.rs-online.com › ... › Crystal Units
RS Components
https://uk.rs-online.com › ... › Crystal Units
Euroquartz 8MHz Crystal ±30ppm SMD 2-Pin 12.4 x 4.5 x 4.2mm ; Bulk discount available. Subtotal (1 unit)*. £0.46. (exc. VAT). £0.55. (inc. VAT) ; Plus 144 unit(s) ...Read more
£0.44 to £0.55In stock7-day delivery10-day returns
Crystal 8MHz, ±30ppm, HC49S SMD - High Stability
ampul.eu
https://ampul.eu › ... › Crystals
ampul.eu
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Frequency: 8 MHz. Frequency stability: ±30ppm. Capacitance: 20pF. Temperature range: -20 to 70 °C. Housing: HC49S SMD. Dimensions: 12.9x4.7x4mm.Read more
€0.19In stock14-day returns
Missing: Sealed ‎8.0X4.5mm
Crystal | Best Electronic Components Online
Sharvielectronics
https://sharvielectronics.com › ... › SMD Component
Sharvielectronics
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12 Mhz Crystal YSX531SL –YXC SMD Package Compare 8 Mhz Crystal YSX531SL –YXC SMD Package ₹28.49 (Excluding All Taxes)Read more
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Missing: Sealed ‎8.0X4.5mm
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