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Key Characteristics
- Size: 8.0mm x 3.8mm (often called 8038 package).
- Frequency: Most commonly 32.768kHz (32.768 kilohertz).
- Type: Passive crystal resonator (needs an oscillator circuit to generate signals).
- Pins: Usually 4 pins for connection.
- Applications: Real-Time Clocks (RTCs), watches, timers, smart devices, low-power applications needing precise time.
- Stability: Offers high precision and stability (e.g., ±10ppm to ±20ppm).
How it Works (Passive vs. Active)
- Passive: This crystal provides the stable frequency, but an external IC (like a microcontroller with a clock circuit) must provide power and feedback to create the actual oscillating signal.
- Active: (For contrast) An active oscillator includes the crystal and the driving circuit in one package, outputting a ready-to-use clock signal.
Where to Find Them
You can find these components on electronic component marketplaces like Global Sources, eBay, Amazon, and AliExpress, often sold in lots for hobbyists and engineers.
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QHMGYLAE 10pcs/lot 8038 32.768kHz 32.768 kHz 32.768k Hz ...
Amazon.com
https://www.amazon.com › QHMGYLAE-32-768kHz-...
Amazon.com
https://www.amazon.com › QHMGYLAE-32-768kHz-...
10pcs/lot 8038 32.768kHz 32.768 kHz 32.768k Hz SMD Passive Crystal Oscillator Resonator ± 20ppm 6pF X803832768KID4GI ; Shipped & Sold by. gaodanshangmao ; Returns.
10pcs 8038 SMD 32.768kHz Crystal Oscillator Resonator
eBay
https://www.ebay.com › ... › Crystals & Oscillators
eBay
https://www.ebay.com › ... › Crystals & Oscillators
10pcs 8038 SMD 32.768kHz Crystal Oscillator Resonator ; Condition. New ; Quantity. 5 available ; Item number. 135162476912 ; Brand. Unbranded ; UPC. Does not apply ...Read more
$9.35In stock$8.29 delivery
8038 SMD Passive Crystal Oscillator Resonator
Acrystals
https://www.acrystals.com › 8038-smd-passive-crystal-o...
Acrystals
https://www.acrystals.com › 8038-smd-passive-crystal-o...
In electronic device design, the 32.768KHz crystal oscillator serves as the core component of Real Time Clocks (RTC), where stability andreliability are ...
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5pcs 3215 1610 2012 7015 8038 SMD Passive Crystal ...
AliExpress
https://www.aliexpress.com › item
AliExpress
https://www.aliexpress.com › item
5pcs 3215 1610 2012 7015 8038 SMD Passive Crystal Oscillator 32.768kHz 32.768 kHz 32.768k Hz ± 20ppm 12.5pF 6pF 7pF Resonator. 3 sold. US $0.53/lot.Read more
$0.5315-day returns
5 pcs 3215 1610 2012 7015 8038 SMD Passive Crystal ...
Amazon.com
https://www.amazon.com › Passive-Oscillator-32-768k...
Amazon.com
https://www.amazon.com › Passive-Oscillator-32-768k...
5 pcs 3215 1610 2012 7015 8038 SMD Passive Crystal Oscillator 32.768kHz 32.768 KHz 32.768k Hz ‚± 20ppm 12.5pF 6pF 7pF Resonator Replacement for OEM ; Returns.
Lcc—8038 32.768khz, Crystal Passive, Quartz ...
Global Sources
https://www.globalsources.com › ... › Crystal resonators
Global Sources
https://www.globalsources.com › ... › Crystal resonators
32.768KHz crystal resonator is a commonly used crystal oscillator model, mainly used in real-time clock (RTC) circuits to provide stable clock signals.Read more
$0.10
Manufacturing Passive Component 32.768kHz SMD8038 ...
Made-in-China.com
https://crystal-oscillator.en.made-in-china.com › product
Made-in-China.com
https://crystal-oscillator.en.made-in-china.com › product
Manufacturing Passive Component 32.768kHz SMD8038 Xtal Piezo Oscillator MHz Ppm PF Quartz Crystal Resonator for PCB Printed Circuit Board ; Drive Level: 1-200μw.Read more
· Review by MIC_BUYER
OEM/ODM 8038 SMD Passive Crystal Oscillator 32.768kHz
Acrystals
https://www.acrystals.com › 8038-smd-passive-crystal-o...
Acrystals
https://www.acrystals.com › 8038-smd-passive-crystal-o...
Customized 8038 SMD Passive Crystal Oscillator 32.768kHz at factory price from Acrystals.com. We are best 8038 SMD Passive Crystal Oscillator 32.768kHz ...
10pcs 8038 SMD Passive Crystal Oscillator Resonator 32.768 ...
Amazon.ca
https://www.amazon.ca › Passive-Oscillator-Resonator-3...
Amazon.ca
https://www.amazon.ca › Passive-Oscillator-Resonator-3...
10pcs 8038 SMD Passive Crystal Oscillator Resonator 32.768kHz 32.768 kHz ± 32.768k Hz 20ppm 12.5pF X803832768KGD4GI ; Returns. Returnable until 31 Jan 2026.
SMD Quartz Crystal Units,Surface Mount MHz-level ...
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.