Tuning Fork Crystal Manufacturer · Shenzhen, China · ISO 9001:2015

32.768kHz Tuning Fork Crystals — Low‑Power Watch Crystals for Real‑Time Clocks (RTC)

Vistar Electronics offers a complete range of 32.768kHz tuning fork crystals designed for real‑time clock (RTC) applications. These low‑power crystals are available in through‑hole cylinder packages (2×6mm, 3×8mm), ultra‑thin ceramic SMD (3.2×1.5mm), and cost‑effective plastic SMD (8.0×3.8mm). Frequency tolerance ±20ppm to ±50ppm, load capacitance 6pF, 7pF, 12.5pF. Ideal for watches, wearables, IoT devices, and any battery‑powered timing application. RoHS & REACH compliant. Free samples available.

32.768kHz Fixed Frequency Cylinder DIP / Ceramic SMD / Plastic SMD ±20~±50ppm Tolerance Load Capacitance: 6pF / 7pF / 12.5pF Ultra‑Low Power (<0.5µA) RoHS & REACH

Technical Reference

Tuning Fork Crystals – Complete Specifications

Types	Part Number	Package (mm)	Type	Frequency	Key Features	Datasheet
XB	VS-TF-0206	2×6mm	Cylinder DIP	32.768kHz	Watch crystal, low power, through-hole	Coming soon
XA	VS-TF-0308	3×8mm	Cylinder DIP	32.768kHz	Watch crystal, low power, through-hole	Coming soon
XD	VS-TF-3215	3.2×1.5 / 4.1×1.5 / 6.9×1.4mm	Ceramic SMD	32.768kHz	HOT, thin SMD tuning fork, low profile	Coming soon
XN	VS-TF-8038	8.0×3.8mm	Plastic SMD	32.768kHz	Cost-effective, automated assembly	Coming soon

Why Choose Vistar

Key Features of Tuning Fork Crystals

⌚

Standard 32.768kHz Frequency

Fixed 2^15 Hz divides perfectly to 1Hz for RTC. Compatible with DS1307, PCF8563, and most MCUs.

🔋

Ultra‑Low Power Consumption

Drive level as low as 0.1µW, consuming <0.5µA – ideal for battery-powered devices.

📦

Multiple Package Options

Cylinder DIP, ceramic SMD, plastic SMD. Supports through‑hole and automated SMT assembly.

🎯

Precision Tolerance

±20ppm to ±50ppm, load capacitance 6/7/12.5pF. Accurate timekeeping guaranteed.

✅

RoHS & REACH Compliant

ISO 9001:2015 certified. Lead‑free, halogen‑free.

⚡

Free Samples & Fast Lead Times

MOQ 1,000pcs. Engineering samples available.

Applications

Where 32.768kHz Tuning Fork Crystals Are Used

⌚ Watches & WearablesSmartwatches, fitness trackers

📱 Smartphones & TabletsReal‑time clocks

💻 Computers & LaptopsMotherboard RTC

🌡️ IoT SensorsLow‑power sensor nodes

🏥 Medical DevicesPatient monitors

🏭 Industrial TimersData loggers, energy meters

🚗 AutomotiveInfotainment, telematics

📺 Consumer ElectronicsSet‑top boxes, appliances

FAQ

Common Questions About Tuning Fork Crystals

Why is the frequency always 32.768kHz for tuning fork crystals?

32.768kHz = 2^15 Hz, allowing a simple 15‑stage binary divider to produce a precise 1Hz signal for RTC applications. The tuning fork shape provides very low power consumption.

What load capacitance do I need for my RTC?

Check your RTC datasheet. Common values: 6pF, 7pF, 12.5pF. Using the correct CL ensures accurate frequency. For CL=12.5pF and stray≈2pF, use external capacitors C1=C2=20pF.

What is the difference between cylinder DIP and SMD tuning fork crystals?

Cylinder DIP (2×6mm, 3×8mm) are through‑hole, easier for prototyping. SMD versions (ceramic or plastic) are for automated assembly.

Do you offer AEC‑Q200 automotive grade tuning fork crystals?

Yes, specific models (especially XD ceramic SMD series) are available with AEC‑Q200 qualification for automotive applications.

What is the typical lead time and MOQ?

Standard MOQ: 1,000 pieces. Lead time: 2‑3 weeks. Free samples available for qualified projects. Contact sales@vistarelectronics.com.

32.768kHz Tuning Fork Crystal Manufacturer — Low‑Power RTC Crystals

Shenzhen Vistar Electronics Co., Ltd. manufactures high‑quality 32.768kHz tuning fork crystals for real-time clock (RTC) applications. Our product line includes XB (2×6mm cylinder DIP), XA (3×8mm cylinder DIP), XD (ceramic SMD), and XN (plastic SMD). All crystals are RoHS/REACH compliant, ISO 9001 certified.

For technical design assistance, please refer to Micro Crystal tuning fork guide. Contact our team for free samples, datasheets, or custom packaging requirements.

Explore related products: Quartz Crystal Resonators, SMD Crystal Oscillators. For pricing and technical support, email sales@vistarelectronics.com or call +86 150 1925 5609.