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citizen

Citizen Watch Co., Ltd., founded in 1918 and headquartered in Tokyo, Japan, is a globally renowned manufacturer of watches and precision electronic components. The company's Electronic Devices division, operating under brands such as Citizen Electronics and the merged entity Citizen Finedevice, is a leader in quartz crystal and oscillator technology. Citizen is recognized as the world's largest manufacturer of quartz crystal units and oscillators, offered in cylindrical, plastic, metal, and ceramic package types. Its core product lines include miniature tuning fork crystals (e.g., the CM series), high-precision AT-cut crystals, clock oscillators, VCXO, TCXO, and OCXO for consumer, automotive, and industrial applications. The company also produces ceramic resonators, SAW filters, and LED devices for diverse markets. Citizen's quartz components are critical for communication infrastructure, IoT devices, and automotive electronics, where they provide stable frequency control and timing solutions. Leveraging decades of in-house crystal growth and assembly technology, the company ensures ultra-miniature, high-reliability products. Its manufacturing capabilities span from crystal blank p

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SERIES

产品系列共 239 个系列

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EPLK1901 Electronic Component

The EPLK1901 series from Citizen Watch Co., Ltd. is a line of precision capacitors designed for high-reliability applications. These components are commonly used in electronic circuits requiring stable voltage regulation and filtering, such as power supplies, audio equipment, and control systems. If you're working on projects that demand consistent performance under varying conditions, these capacitors are a reliable choice. One thing worth noting is their robustness against temperature variations. Engineers tend to reach for this series when they need capacitors that can maintain their capacitance values within a tight tolerance range even as temperatures fluctuate. This makes them ideal for automotive electronics, industrial control systems, and other environments where thermal stability is crucial. Another practical observation is their suitability for high-frequency applications. The EPLK1901 series is known for its low equivalent series resistance (ESR) and low equivalent series inductance (ESL), which help minimize signal loss and improve overall circuit performance in high-speed digital designs. If your project involves fast switching circuits or RF components, these capacit

CM250S76 crystals and oscillator

The CM250S76 series from Citizen Watch Co., Ltd. is a line of Surface Mount Device (SMD) tuning fork crystals designed for applications requiring high precision in frequency stability. These crystals are commonly used in oscillators and clock circuits where timing accuracy is crucial. If you're working on systems that need reliable timekeeping or frequency generation, these crystals are a go-to choice. One thing worth noting is their robust performance under varying temperature conditions. Unlike some other crystal types, tuning forks maintain their frequency stability even when the temperature fluctuates. This makes them ideal for industrial applications where environmental conditions can be less controlled. Additionally, engineers tend to reach for this when they need a compact solution that offers both high precision and reliability without taking up much board space. The CM250S76 series is particularly popular in devices such as GPS receivers, automotive electronics, and medical equipment where precise timing is critical

CM309A3 crystals and oscillator

The CM309A3 crystal series from Citizen Watch Co., Ltd. is a line of surface-mount crystals designed for precise timing applications. These crystals feature an 18pF load capacitance, which makes them suitable for a variety of embedded systems where space is limited and high accuracy is required. If you're working on projects involving microcontrollers, FPGA boards, or any digital circuitry that needs reliable timing, these crystals could be a great fit. One thing worth noting is that the compact size of these surface-mount crystals makes them ideal for small form factor designs. They are commonly used in portable electronics, IoT devices, and medical equipment where minimizing the overall footprint is crucial. Another practical application is in automotive systems, where the stability and reliability of the timing signal are paramount. Engineers tend to reach for this when they need a precise timing reference that can be easily integrated into a PCB without taking up too much space. The 18pF load capacitance is a good middle ground, providing a balance between performance and ease of use. Overall, the CM309A3 crystals offer a reliable solution for timing applications in a wide rang

CM309S11 crystals and oscillator

The CM309S11 series from Citizen Watch Co., Ltd. are surface-mount crystals designed for precise timing applications. These crystals operate at a frequency of 32.768 kHz, which is commonly used in watchmaking and other timing devices due to its ability to provide accurate timekeeping over long periods. They feature an 18pF load capacitance, making them suitable for a variety of circuit configurations without requiring external capacitors. Engineers tend to reach for these crystals when they need a compact, reliable timing solution that doesn't require additional components. They show up in applications ranging from embedded systems and microcontrollers to various types of timing circuits in consumer electronics. For instance, in smart watches and fitness trackers, these crystals ensure accurate timekeeping even under varying environmental conditions. One thing worth noting is their surface-mount design, which makes them ideal for space-constrained PCB layouts. Additionally, the consistent performance over temperature and aging means they can maintain accuracy over the lifetime of the device. Another practical benefit is their availability in a small form factor, which is crucial fo

CM309S19 crystals and oscillator

The CM309S19 series from Citizen Watch Co., Ltd. is a line of surface-mount crystals designed for precise frequency control in a variety of electronic devices. These crystals are commonly used in oscillators to generate stable and accurate clock signals, which are essential for the proper operation of many digital circuits. If you're working on projects that require high-frequency stability and low phase noise, these crystals are a go-to choice. They're particularly useful in applications such as communication systems, test equipment, and medical devices where timing accuracy is critical. Engineers tend to reach for this type of crystal when they need a small form factor and reliable performance without the bulk of through-hole components. One thing worth noting is the wide operating temperature range these crystals can handle—typically from -40°C to +85°C—which makes them suitable for use in a broad range of environments. Another practical observation is their excellent aging characteristics, meaning they maintain their frequency stability over time, reducing the need for recalibration. Overall, the CM309S19 series offers a solid solution for precision timing needs in modern elect

CM309S5 crystal

The CM309S5 series from Citizen Watch Co., Ltd. is a line of surface-mount crystals designed for precision timing applications. These crystals feature a 18 picofarad (pF) load capacitance, making them suitable for a variety of electronic devices that require accurate timekeeping, such as watches, clocks, and various embedded systems. If you're working on any project that demands high accuracy in timing, these crystals are a great choice. They offer reliable performance across a wide temperature range, which is crucial for maintaining consistent operation in different environments. One thing worth noting is their compact size, which makes them ideal for space-constrained designs. Engineers tend to reach for this type of crystal when they need precise time synchronization without the bulk of larger crystal packages. Another practical benefit is their stability over time. The CM309S5 series maintains its frequency stability even under varying conditions, ensuring that your system remains accurate over long periods. This reliability is particularly important in applications where timekeeping precision is critical, such as in medical devices or industrial control systems. Overall, the C

CM315D32768 crystals and oscillator

The CM315D32768 series from Citizen Watch Co., Ltd. is a line of Surface Mount Device (SMD) tuning fork crystals designed for high-precision timing applications. These crystals are commonly used in electronic devices that require accurate timekeeping, such as watches, clocks, medical equipment, and industrial control systems. If you're working on any project that demands reliable and consistent time measurements, these crystals are a solid choice. One thing worth noting is their compact SMD design, which makes them ideal for space-constrained applications. Engineers tend to reach for these when they need a small, yet highly accurate timing component. Another practical benefit is their low power consumption, which is crucial in battery-powered devices. Additionally, the tuning fork design offers excellent frequency stability over temperature variations, making them more robust compared to other crystal types in fluctuating environments

CM309S6 crystal

The CM309S6 series from Citizen Watch Co., Ltd. is a lineup of Surface Mount Device (SMD) crystals designed for a range of precision timing applications. These crystals come in different frequency options and feature a capacitance of 18 picofarads (pF). If you're working on projects that require high-stability oscillators or precise timekeeping, these crystals are a solid choice. One thing worth noting is their suitability for various embedded systems and microcontroller-based designs. Engineers tend to reach for these when they need a reliable and compact timing solution for devices such as smartphones, wearables, and industrial control systems. The smaller form factor makes them ideal for space-constrained environments where board real estate is at a premium. Another practical observation is their stability over temperature. The CM309S6 series maintains its accuracy across a wide range of temperatures, which is crucial for applications that operate in varying environmental conditions. This makes them particularly useful in outdoor equipment, automotive systems, and other devices that may experience significant temperature fluctuations. In terms of performance, these crystals offe

CMR200TB crystals and oscillator

The CMR200TB series from Citizen Watch Co., Ltd., operates as surface mount crystals running at 32.768kHz, which is a common frequency used in various timing and synchronization applications. These crystals are frequently found in portable electronics, such as GPS receivers, digital watches, and communication devices, where precise timekeeping is essential but space is limited. They are also used in microcontroller-based systems, where they serve as the primary clock source, ensuring reliable operation even under varying environmental conditions. One thing worth noting is their robustness; these crystals are designed to maintain accurate timing over a wide range of temperatures, making them ideal for use in consumer electronics that might experience significant temperature fluctuations. Engineers tend to reach for this when they need a compact, high-precision timing solution without the bulk of larger crystal packages. Additionally, their low power consumption and stable performance make them a preferred choice for battery-powered devices where every milliamp counts

CMR309T4 crystals and oscillator

The CMR309T4 series from Citizen Watch Co., Ltd. consists of surface mount crystals and oscillators designed for a range of frequencies. These components are essential in RF circuits, clock generators, and synchronization systems where precise timing is critical. If you're working on anything that requires accurate timekeeping or stable frequency generation, these crystals and oscillators are a go-to choice. One thing worth noting is their compact size—being SMD components, they fit well into space-constrained designs. Engineers tend to reach for this series when they need reliable performance in small form factor devices like smartphones, wearables, or embedded systems. Another practical benefit is their stability over temperature and voltage variations, which makes them ideal for applications where environmental factors might otherwise affect performance. The CMR309T4 series covers a broad spectrum of frequencies, allowing designers to pick the right crystal or oscillator for their specific needs. Whether you're dealing with Bluetooth modules, GPS receivers, or digital clocks, these components provide the necessary precision and reliability. Their robustness and wide availability

CMX309FLC11 oscillator

The CMX309FLC11 series from Citizen Watch Co., Ltd. is a lineup of surface-mount crystal oscillators designed for precise frequency control in a compact form factor. These oscillators are widely used in various electronic devices where stability and accuracy are critical, such as in communication equipment, industrial control systems, and automotive electronics. They provide reliable timing references that help maintain consistent performance across different operating conditions. One thing worth noting is their ability to operate over a wide temperature range, which makes them ideal for applications in harsh environments. Engineers tend to reach for these oscillators when they need a stable clock source that can handle variations in temperature without drifting significantly. Another practical benefit is their low power consumption, which is beneficial in battery-powered devices where every microamp counts. The CMX309FLC11 series is also known for its small size, fitting easily into tight PCB layouts. This is particularly useful in space-constrained designs where minimizing component footprint is crucial. Overall, these oscillators offer a balanced mix of performance, reliability

CMX309FLC3 oscillator

The CMX309FLC3 oscillator series from Citizen Watch Co., Ltd., is designed for surface-mount applications requiring precise frequency generation. These oscillators are commonly found in a variety of electronic devices, including communication equipment, medical devices, and industrial control systems, where stability and accuracy are critical. If you're working on projects that demand reliable clock signals, these oscillators are a go-to choice. One thing worth noting is their compact size, which makes them ideal for space-constrained designs. Engineers tend to reach for this when they need a stable, high-frequency signal source that can be integrated easily into a PCB without taking up too much real estate. Another practical benefit is their ability to operate over a wide temperature range, ensuring consistent performance even in harsh environments. This robustness is particularly valuable in outdoor or industrial settings where temperature fluctuations might otherwise impact system performance

CSX750FBF 3.3V CMOS components with 100P

The CSX750FBF series from Citizen Watch Co., Ltd. is a lineup of 3.3V CMOS components known for their excellent temperature stability, specifically with a drift rate of only 100 parts per million (ppm) per degree Celsius. These components are designed to maintain precision over a wide range of operating temperatures, making them ideal for applications that require high reliability and accuracy. If you're working on systems that involve signal processing, timing circuits, or any application where temperature variations could affect performance, these components are a great choice. They show up frequently in industrial control systems, medical devices, and automotive electronics where maintaining precise timing is critical. One thing worth noting is how these components handle power supply fluctuations. While they are primarily optimized for temperature stability, they also exhibit good behavior under varying supply voltages, which adds to their versatility. Engineers tend to reach for this series when they need a stable reference clock or timing element that can withstand typical environmental conditions without needing frequent recalibration

CSX750PCC3 oscillator

The CSX750PCC3 oscillator from Citizen Watch Co., Ltd. is a surface-mount device designed for precision timing applications. These oscillators are commonly used in a variety of electronic devices that require high stability and accuracy in timing, such as smartphones, laptops, and industrial control systems. If you're working on projects that demand reliable and consistent timing, these oscillators are a go-to choice. One thing worth noting is their small form factor. Despite being surface-mount components, they offer excellent frequency stability and low phase noise, which makes them ideal for space-constrained designs while still delivering top-notch performance. Engineers tend to reach for this type of oscillator when they need a compact solution that can maintain precise timing over a wide range of operating conditions. Another practical benefit is their ease of integration into existing PCB designs due to their standard SMD package. Overall, the CSX750PCC3 is a solid choice for anyone needing a reliable and precise timing solution in their design

CSX750PCC4 oscillator

The CSX750PCC4 oscillator from Citizen Watch Co., Ltd. is a surface-mount device designed for generating precise frequencies. These oscillators are commonly used in a variety of electronic circuits that require stable and accurate timing, such as microcontrollers, communication modules, and digital signal processors. If you're working on a project that demands high-frequency stability and reliability, these oscillators are a go-to component. One thing worth noting is their small footprint, which makes them ideal for space-constrained designs. Engineers tend to reach for this when they need a compact solution that can deliver consistent performance without compromising on accuracy. Another practical observation is their robustness against temperature variations, which is crucial for maintaining frequency stability across different operating conditions. Overall, the CSX750PCC4 oscillators are reliable and versatile, making them a solid choice for precision timing requirements in modern electronics

HC49US5 crystals & oscillator

The HC49US5 series from Citizen Watch Co., Ltd. is a line of precision quartz crystals designed for frequency control in various electronic devices. These crystals are widely used in applications requiring high stability and accuracy in oscillation frequencies, such as communication systems, industrial controls, and test equipment. If you're working on anything that needs precise timing, these crystals are a go-to solution. One thing worth noting is their compact size and robust design, making them suitable for space-constrained environments while still maintaining excellent performance. Engineers tend to reach for this when they need reliable frequency sources that can operate over a wide temperature range without significant drift. Another practical observation is their ability to integrate seamlessly into existing designs, thanks to their standardized form factor and industry-standard electrical characteristics. Overall, the HC49US5 series provides a solid foundation for achieving precise and consistent timing in demanding applications

HCM495 Crystal

The HCM495 crystal series from Citizen Watch Co., Ltd. is a line of surface mount timing devices designed for high-precision applications. These crystals operate across a wide range of frequencies, making them suitable for everything from consumer electronics to industrial control systems. If you're working on projects that require accurate timekeeping, such as oscillators, phase-locked loops, or timing circuits, these crystals are a go-to component. One thing worth noting is their stability over temperature. The HCM495 series maintains its accuracy even under varying environmental conditions, which is crucial for reliable performance in different operating scenarios. Engineers tend to reach for these crystals when they need a compact, high-frequency solution that doesn’t compromise on stability. Another practical aspect is their ease of integration into PCB designs due to their surface mount form factor. They offer a balanced mix of performance and cost, making them an excellent choice for a variety of applications where precise timing is essential

CM200S32 crystals and oscillator

The CM200S32 crystal series from Citizen Watch Co., Ltd., is a surface-mount 32.768 kHz device designed for precision timing applications. These crystals are commonly used in watches, clocks, and various electronic devices that require accurate timekeeping. If you're working on any project involving precise timing, such as GPS receivers, digital clocks, or battery management systems, these crystals are a reliable choice. One thing worth noting is their compact size and ease of integration into modern PCB designs. Engineers tend to reach for these crystals when they need a high-quality, low-drift time reference that fits into tight spaces. They offer excellent frequency stability and are known for their long-term reliability, which is crucial in applications where accuracy over time is essential. Another practical use case is in RFID systems, where precise timing is necessary for data synchronization and signal processing. The CM200S32 crystals provide the necessary stability to ensure reliable operation in these environments. Additionally, they are often used in test equipment and medical devices, where even minor variations in timing can affect overall performance and safety

CMR250TB crystals and oscillator

The CMR250TB series from Citizen Watch Co., Ltd., is a line of surface-mount crystals designed for timing applications that require a 12.5pF capacitance. These crystals are commonly found in various electronic devices where precise timing is crucial, such as in microcontrollers, digital clocks, and other embedded systems. If you're working on a project that needs accurate timekeeping without the bulk of through-hole components, these surface-mount crystals offer a compact solution. One thing worth noting is their stability under temperature variations. Since they operate in a wide range of temperatures, they maintain consistent performance, which is essential for maintaining accuracy in timing-critical applications. Engineers tend to reach for this type of crystal when space is a premium and precision is key. For instance, in automotive electronics, where every component must be as small and reliable as possible, the CMR250TB crystals can be a go-to choice

CSX750FBC3 oscillator

The CSX750FBC3 oscillator from Citizen Watch Co., Ltd. is a surface-mount device designed for precise frequency control applications. If you're working on projects that require stable, high-frequency timing, this oscillator is a solid choice. It’s commonly found in automotive electronics, consumer devices, and medical equipment where precise timing is critical. One thing worth noting is its small footprint. As a surface-mount component, it integrates seamlessly into modern PCB designs without taking up much space. This makes it particularly useful in dense circuit boards where real estate is at a premium. Engineers tend to reach for this when they need a reliable, compact solution for frequency generation. Another practical benefit is its stability over temperature variations. The CSX750FBC3 maintains consistent performance across a wide range of temperatures, which is crucial for maintaining accurate timing in various environmental conditions. This reliability ensures that your system operates predictably, even under challenging thermal conditions. Overall, if you’re looking for a dependable, small-profile oscillator for frequency control in precision applications, the CSX750FBC3