KHz Crystals
KHZ Crystals, also called Tuning Fork Crystals, typically operate at 32.768 kHz. HCI also provides alternatives like 32 kHz and 30 kHz, serving critical timing needs across various industries. To accommodate diverse design requirements, HCI offers both SMD and Through-Hole (DIP) packages in a range of sizes, from the miniaturized 1210 to 10.4x4.1mm.
Your Professional KHz Crystals Supplier
Suzhou Hangjing Elec & Tech Co., Ltd., founded in 2014, is a technology-driven small and medium-sized enterprise (SME) specializing in the full-spectrum R&D, design, production, and sales of quartz frequency control components. Rooted in a professional team and advanced manufacturing expertise, the company has developed a robust product portfolio encompassing quartz crystals, crystal oscillators, TCXO, VCXO, OCXO, crystal filters-ranging from foundational components to tailored systems.
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32.768kHz Crystals 1610Tuning Fork Crystal 1610 FC11M2 is a compact 32.768kHz crystal unit with dimensions of 1.6mm × 1.0mm × 0.5mm. It is commonly used in real-time clock (RTC) circuits for precise timekeeping in...read more
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32.768kHz Tuning Fork Crystal 1210FC10M4 series features ultra-compact 32.768kHz Tuning Fork Crystals, designed for precision timing applications. With an ultra-small footprint of 1.2×1.0×0.3mm, it is ideal for space-constrained...read more
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SMD Type Crystals 2012SMD Type Crystals 2012 FC21M2 series is an ultra-compact crystals,with its compact dimensions (2.0 × 1.2mm) and low-power characteristics, it is an ideal choice for portable medical equipment.read more
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FC-135 Crystal 3.2 X 1.5 mmSuzhou Hangjing’s FC31M2 is a best-selling 32.768kHz tuning fork crystal in a compact 3.2×1.5×0.8mm (SMD3215-2P) package with dual solder pads, offering FC-135-compatible design and accurate...read more
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KHz Crystal Resonators 4115The 4115 FC41M2 kHz Crystal Resonator is a 32.768 kHz ultra-compact, low-profile SMD tuning fork quartz component, ideally suited for providing reference clock signals in mobile communication...read more
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MC-146 KHz Crystals 7.0 X 1.5MC-146 kHz Crystals 7.0 x 1.5 FR07S4 series features ultra-low-power 32.768kHz Tuning Fork Crystals, engineered for energy-efficient timing solutions. Suzhou Hangjing’s FR07S4 offers perfect...read more
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MC-306 Frequency Crystal 8.0 X 3.8The MC-306 Frequency Crystal 8.0 x 3.8 FR08S4 series provides high-quality 32.768kHz watch crystals in a compact 8.0×3.8mm resin-encased package. Designed as a direct pin-to-pin replacement for...read more
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MC-406 Timing Crystal 10.4 X 4.1The MC-406 Timing Crystal (10.4×4.1mm) - FR10SH Series is a surface-mount quartz crystal resonator designed primarily for 32.768kHz real-time clock (RTC) applications.read more
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SMD Cylindrical Crystal 2*6The SMD Cylindrical Crystal 2*6 FL26S2 series from Suzhou Hangjing offers a nominal frequency range covering 32.768kHz and 28-80kHz. It is well-suited for various precision frequency-control...read more
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2 Pins Through Hole Crystal 2*6Hangjing’s FL26T2 series is a high-precision 32.768kHz through-hole cylindrical clock oscillator (2×6mm DIP, 2-pin), offering exceptional stability and reliability.read more
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32.768KHz DIP Crystal 3*8The 32.768KHz DIP Crystal 3*8 FL38T2 series is a tuning fork crystal in through-hole package with 2 leads, offering standard frequency 32.768kHz and customized frequency vary from 28 ~ 100kHz ....read more
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Metal Can 49 SMD 32.768kHz CrystalMini 49 SMD 32.768kHz Crystal FL37S2 series, a surface-mount crystal with package dimensions 7.5x3.1x2.3 and 2 leads, available for 32.768kHz.read more
Why choose us
Superior Quality
A precision supply chain ensuring consistent product quality;An ultra-low failure rate validated by rigorous testing;High-quality materials and advanced technology make the product more reliable.
Service Advantages
A customer-centric service framework (covering pre-sales consultation to post-sales support) that prioritizes rapid response. 24-hour online service, timely and fast quotation for you.
Sales Market
Our Products has expanded into key international regions including Europe, Southeast Asia, the Americas, Oceania, and other major markets. This global network enables the company to provide full support to leading electronics manufacturers around the world, while maintaining a strong focus on high-quality products.
Our Certificate
All our products have passedGB/T 19001 - 2016/ISO 9001:2015 Quality Management System Standard, This demonstrates that they meet international standards for quality, safety, and performance.

The 4115 size 32.768KHz crystal resonator is an ultra-small, thin surface mount tuning fork quartz crystal resonator, suitable for mobile communication fields such as the reference clock of mobile communication terminals. The crystal oscillator has excellent heat resistance and environmental resistance, and performs well in high-end digital products such as office automation, home appliances, smart phones, wireless communications, satellite navigation, platform base stations, etc. Its size is 4.1*1.5*0.9 mm, the frequency is 32.768 kHz, and it has high precision and low jitter characteristics. The product complies with the lead-free standard, meets the reflow temperature curve requirements of lead-free soldering, and is encapsulated in a metal shell to provide better impact resistance.
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PARAMETER |
FC41M2 |
CONDITIONS / REMARKS |
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Nominal frequency range |
32.768kHz |
-- |
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Crystal mode |
Fundamental |
-- |
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Frequency tolerance |
±20ppm / ±30ppm / ±50ppm |
Other options available |
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Stability over temperature |
-0.03±0.01ppm/Δ°°C |
Parabolic coefficient |
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Operating temperature range |
-40 to +85°C |
Other options available |
|
Turning point temperature |
25±5°C |
-- |
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Equivalent series resistance |
<60kΩ |
-- |
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Shunt capacitance (TYP) |
1.5pF |
-- |
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Motional capacitance (TYP) |
3.3fF |
-- |
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Load capacitance |
6pF/ 7pF / 9pF/ 12.5pF |
Please specify |
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Drive level |
0.2μw TYP / 1.0μw MAX |
-- |
|
Aging per year |
±3ppm |
At +25°C |
|
Storage temperature range |
-55 to +125°C |
-- |
Advantages of KHz Crystal Resonators 4115
Low Power Consumption: These crystals are designed to consume minimal power, making them an optimal choice for battery-powered devices such as wearables and portable electronics. Their energy efficiency contributes to longer battery life, aligning with the growing emphasis on sustainable technology.
Cost-Effectiveness: Advances in manufacturing technology and economies of scale have driven down the costs of producing these crystals without compromising quality, positioning them as a preferred choice in a wide range of consumer and industrial electronics.
Wide Availability: Utilized across diverse fields, from wristwatches to complex industrial machinery, 32.768 kHz tuning fork crystals are readily available in various package sizes and tolerances, making them highly adaptable to different design requirements.
Reliability: Known for tight tolerance, typically within a few parts per million (ppm), and inherent stability, these crystals offer precise and consistent frequency regulation for timekeeping, even under varying environmental conditions.
Efficiency: Their design optimization for low-power consumption aligns with the global demand for energy-efficient solutions, meeting the regulatory and consumer needs for power-saving devices.
Versatility: The standard frequency of 32.768 kHz has fostered a wide array of applications, from personal wearables and laptops to IoT devices and industrial control systems. The adaptability of these crystals underscores their far-reaching significance.
Future Prospects: Continued innovation in crystal manufacturing and integration techniques ensures that 32.768 kHz tuning fork crystals will remain central to future technological advancements. Whether supporting emerging IoT technologies or driving the miniaturization trend in electronics, these crystals are poised to retain their status as an essential component in electronic design.
Types of KHz Crystal Resonators 4115
Standard Crystal Oscillators
These are the most common types, offering basic functions for transmission and timing.
Temperature Compensated Crystal Oscillators (TCXO)
Designed to maintain frequency stability over a range of temperatures, making them ideal for outdoor or variable temperature environments.
Voltage Controlled Crystal Oscillators (VCXO)
These oscillators provide frequency adjustment capabilities through voltage changes, suitable for frequency modulation applications.
Microprocessor-Compatible Crystal Oscillators
Optimized for integration with microcontrollers and microprocessors, these are smaller and more efficient.
Applications of KHz Crystal Resonators 4115
IoT Devices: In the rapidly growing Internet of Things (IoT) ecosystem, synchronized communication is vital. KHz Crystal Resonators 4115facilitate this synchronization, allowing devices to communicate and interact seamlessly. Whether it's smart home devices or industrial IoT sensors, these crystals ensure accurate timing, enabling efficient data exchange and coordination.
Industrial Equipment: Precision is key in industrial automation. KHz Crystal Resonators 4115 are used to ensure precise timing in various industrial equipment, from manufacturing robots to conveyor belts. Their reliability and accuracy contribute to the smooth operation of complex machinery, minimizing errors and enhancing productivity.
Consumer Electronics: These crystals are at the heart of many consumer electronics, powering everything from smart speakers to gaming consoles. Their low power consumption and compact size make them ideal for portable devices, while their cost-effectiveness allows manufacturers to deliver high-quality products at competitive prices. Whether it's a smartwatch or a tablet, KHz Crystal Resonators 4115are likely playing a crucial role in its operation.
Medical Devices: In the medical field, timing can be a matter of life and death. KHz Crystal Resonators 4115 are used in various medical devices, such as infusion pumps and monitoring equipment, to ensure accurate timing and control. Their reliability and precision are vital in delivering consistent and safe patient care.
Security Systems: Smart Security systems, such as access control and smart security cameras, rely on accurate timing to function effectively. KHz Crystal Resonators 4115 provide the necessary timing solutions, ensuring that security measures are coordinated and responsive. - Smart Meters and Energy Management: In the era of smart homes and energy efficiency, smart meters utilize KHz Crystal Resonators 4115 to accurately measure and manage energy consumption. Their precision helps in optimizing energy usage, contributing to sustainability efforts.
Other Relevant Applications: The versatility of KHz Crystal Resonators 4115 extends to microcontrollers, wireless communications, metering, wearables, portables, and ultra-thin devices. The availability of SMD package options such as 3.2 x 1.5 mm, 2.0 x 1.2 mm, and 1.6 x 1.0 mm allows for integration into various designs, accommodating different sizes and performance requirements.
Load Capacitor Matching
• Incorrect matching can cause frequency offset (e.g., using a 9pF crystal when designed for 12.5pF).
• Solution: Adjust the values of C1 and C2 based on the circuit's stray capacitance (usually 3-5pF).
Drive Power Control
• Overdriving (e.g., power > 1mW) can accelerate aging and even damage the crystal.
• Solution: When using an inverter (such as the 74HC04), ensure the drive level is ≤ 0.5μW.
Soldering and Installation
• Avoid mechanical stress: Do not bend the pins during installation, and allow ample space on the circuit board.
• Anti-static Measures: Wear an anti-static wrist strap during operation, and ground the soldering equipment.
Noise and Interference
• Power supply noise can cause malfunction; add a filter capacitor at the input.
• The output load should be close to the crystal (recommended ≤ 20mm) to minimize signal attenuation.

Installation and Soldering Process
Reflow soldering: Peak temperature ≤ 240°C, time ≤ 10 seconds. Excessively high temperatures or prolonged heating can degrade the internal characteristics of the crystal.
Manual soldering: Soldering iron temperature 300°C–350°C, time ≤ 3 seconds. Avoid prolonged contact with the pins.
During installation, avoid applying external forces to the crystal (such as bending or twisting the pins) to prevent package cracking or internal chip breakage.
When designing the circuit board, allow sufficient mounting space to avoid collisions with other components.
When working, wear an anti-static wrist strap and use an anti-static work surface or mat to prevent static electricity from penetrating the crystal's internal circuitry.
Soldering equipment (such as soldering irons and reflow soldering machines) must be well grounded.
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We're professional khz crystals manufacturers and suppliers in China, providing high quality customized products with low price. If you're going to wholesale discount khz crystals, welcome to get quotation and free sample from our factory.
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