HOT PRODUCTS

Crystal Oscillators

Atomic Clocks

SLIC Chips

Clock Chips

Time Server

Timing Module

OCXO

An oven-controlled crystal oscillator (OCXO) uses a constant-temperature oven to maintain the temperature of a quartz crystal resonator, minimizing fluctuations in the oscillator's output frequency caused by ambient temperature fluctuations.

OCXO

QT45

Lightweight and compact

Low power consumption

Small size

Wide operating temperature

SA.45 compatible

QT45

AS1630A

The AS1630A chip is a single-channel SLIC device with a 3-wire SSI input/output digital interface. It provides all the SLIC, codec, and DTMF detection functions required for a complete analog telephone interface.

AS1630A

AC1571

The AC1571 is a PLL-based clock generator for 5G base station applications. This chip utilizes fully digital phase-locked loop (PLL) technology to achieve optimal high-frequency, low-phase-noise performance, along with low power consumption and high PSRR.

AC1571

TS3000 (4U)

The TS3000 (4U) is a high-precision time synchronizer that supports dual-mode GPS/Beidou with dual antennas and supports master/slave configurations.

TS3000 (4U)

MOC330

The MOC330 PCI-e timing card supports multiple reference inputs and outputs, allowing for customized combinations to provide high-precision time information for computer systems.

MOC330

CORE SOLUTIONS

TelecommunicationPower UtilitiesRail TransitFinanceloT&Smart BuildingMetrology

Telecommunication

The pain points are concentrated in four major dimensions: accuracy, stability, security, and management. Traditional clock sources lack accuracy and are susceptible to interference

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Power Utilities

Strong electromagnetic environments can easily cause satellite timing signals to be interfered with or deceived. Different devices have very different requirements for synchronization accuracy and multi-protocol compatibility is complex.

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Rail Transit

Satellite timing is easily obstructed by tunnels, terrain and other environmental interference. The compatibility of multiple devices and multiple protocols is complex, and network delay jitter affects synchronization accuracy.

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Finance

Scenarios such as high-frequency trading require extremely high microsecond accuracy. The clocks of distributed system nodes are prone to deviation and network delays affect synchronization consistency.

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loT&Smart Building

Devices are highly heterogeneous and multi-protocol compatibility is complex. Delay jitter and clock drift in a mixed wireless/wired network environment can easily lead to synchronization deviations.

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Metrology

There are strict requirements for high precision at the nanosecond to microsecond level, while network delay jitter, clock drift and hardware resolution limitations exacerbate synchronization deviations.

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Cases

Saisi x Midea | High-Precision NTP Servers Empower Digital Transformation

Saisi x Midea | High-Precision NTP Servers Empower Digital Transformation

Amid the deepening 'East Data West Computing' strategy and surging AI computing demands, Midea Group's Gui' an and Nanhai cloud data centers have deployed Saisi's high-precision NTP servers. This enables precise time synchronizati

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Saisi x China Unicom | It's a new record! Saisi has won the bid for the 2025 China Unicom time synchronization equipment centralized procurement project.

Saisi x China Unicom | It's a new record! Saisi has won the bid for the 2025 China Unicom time synchronization equipment centralized procurement project.

Recently, Saisi Electronics, a leading clock synchronization company, has secured the top position in the telecom operator market. It won the 2025 centralized procurement project for time synchronization equipment from China Unicom with the highest overal

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Saisi x Alibaba Cloud | Saisi PTP Time Synchronization Solution: 30ns Precision Weaves a Boundless Global Computing Network

Saisi x Alibaba Cloud | Saisi PTP Time Synchronization Solution: 30ns Precision Weaves a Boundless Global Computing Network

Saisi Global Distributed Data Center PTP Solution: Empowering Alibaba Cloud to Accelerate the Construction of a "Unified Global Cloud Computing Network"

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Saise x Disney | Saisi Time Synchronization Server Builds a "Safety Neural Network" for Theme Parks with Microsecond-level Precision

Saise x Disney | Saisi Time Synchronization Server Builds a "Safety Neural Network" for Theme Parks with Microsecond-level Precision

As a domestic leader in the #time synchronization# field, ranging from amusement parks to the lifeline of the nation, Saisi has created over 1,000 industry benchmark cases for critical sectors such as 5G/6G communications, power energy, rail transit, and

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Saisi x Bogotá Metro | Saisi clock system sets sail overseas! Injecting precise "China heartbeat" into Bogotá Metro

Saisi x Bogotá Metro | Saisi clock system sets sail overseas! Injecting precise "China heartbeat" into Bogotá Metro

Recently, the first two trains for Bogotá's first metro line, Line 1, officially rolled off the assembly line and were delivered. As the sole supplier of clock synchronization products and solutions for the line

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Saisi x Three barrels of oil | The Saisi chip-scale atomic clock has significantly enhanced the deep-sea exploration capabilities of CNOOC, accelerating the discovery of billion-ton oil and gas fields!

Saisi x Three barrels of oil | The Saisi chip-scale atomic clock has significantly enhanced the deep-sea exploration capabilities of CNOOC, accelerating the discovery of billion-ton oil and gas fields!

oil and gas circle expansion Saisi completes its business layout in the "Big Three Oil Companies" The oil and gas industry, as the "energy backbone" of the social infrastructure sector, is crucial to the overall economic development.

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Saisi x Hangzhou Metro Line 6 | Saisi Time Server Steadily Expands on the "Railway"

Saisi x Hangzhou Metro Line 6 | Saisi Time Server Steadily Expands on the "Railway"

Recently, Hangzhou Metro Group Co., Ltd. partnered with Saisi for the Phase I project of Hangzhou Metro Line 6, requesting the company to supply a DCS clock server for the engineering signaling system. The Hangzhou Metro Line 6 project marks another coll

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Saisi x Mexico City Metro Line 1 | Achieving a Comprehensive Breakthrough in Overseas Markets! Saisi Provides Clock Systems for Mexico City Metro Line 1

Saisi x Mexico City Metro Line 1 | Achieving a Comprehensive Breakthrough in Overseas Markets! Saisi Provides Clock Systems for Mexico City Metro Line 1

As Saisi's product competitiveness and reputation have grown, it has gradually established a strong brand and customer base within the industry. In particular, in areas of strength, Saisi's timing and frequency products are increasingly exported

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Saisi x Volcano Engine | High-precision synchronization clock helps ByteDance's first computing power center in East China come into operation

Saisi x Volcano Engine | High-precision synchronization clock helps ByteDance's first computing power center in East China come into operation

Saisi's synchronous clock provides all-round support to the Volta Engine Yangtze River Delta Computing Power Center, helping ByteDance's Volta Engine to create a "new universe in the cloud".

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Saisi x Huawei | Collaborate with Huawei to jointly create an accurate network testing environment for the 5G era

Saisi x Huawei | Collaborate with Huawei to jointly create an accurate network testing environment for the 5G era

Based on years of technological advantages, Zhejiang Saisi has secured a position in the field of high-precision time-frequency. Since its launch, Saisi's Gigabit Ethernet tester has received extensive inquiries and attention from users. Recently, Hu

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70%

Electric Energy

50%

Transportation Track

1000+

Cooperation Case

100+

R&D Personnel

About Us

Committed To Providing Customized Time And Frequency Benchmarks For All Industries In Society

Since 2013, the company has established over 10 time-frequency product lines, developed more than 100 time-frequency complete machines/systems, and created benchmark customers such as China Mobile in the civilian market, becoming a core supplier in various key fields. In 2015, a number of high-precision time-frequency board cards/modules were finalized

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OUR ADVANTAGES

For over a decade, we have been continuously building a "time and frequency service network", providing global customers with a full range of time and frequency product services. Currently, Saisi leads the industry in terms of comprehensive market share. It has a large pre-sale and after-sale team as well as a globally leading R&D team, ensuring reliable services and business coverage across four continents around the world.

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AdvantagesAdvantages

NEWS CENTER

New Release | Saisi's ultra-low jitter differential crystal oscillator empowers high-speed interconnection of AI servers and optical modules.

Feb. 06, 2026

New Release | Saisi's ultra-low jitter differential crystal oscillator empowers high-speed interconnection of AI servers and optical modules.

The exponential growth of AI computing power is driving comprehensive technological upgrades in computing infrastructure. Next-generation AI servers and 800G/1.6T optical modules now demand higher precision in timing synchronization. Saisi has launched its groundbreaking ultra-low-jitter differential crystal oscillator series, delivering high-perfo

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Strive, Accumulate, Set Sail | The 2025 Annual Summary Conference of Saisi Marketing Center Concluded Successfully

Feb. 05, 2026

Strive, Accumulate, Set Sail | The 2025 Annual Summary Conference of Saisi Marketing Center Concluded Successfully

As the golden snake bids farewell to the year and the steed heralds spring, Saisi Marketing Center held its 2025 Annual Summary Conference with great pomp at its Jiaxing headquarters on January 24. Senior executives and all marketing team members gathered to review the remarkable achievements of the past year and chart the course for 2026. 01 Revie

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The sole Chinese participant! The Saisi ISPCS 2023 London Exhibition has successfully concluded. Exploring the broader boundaries of time-frequency applications with global partners!

Jan. 27, 2026

The sole Chinese participant! The Saisi ISPCS 2023 London Exhibition has successfully concluded. Exploring the broader boundaries of time-frequency applications with global partners!

The annual IEEE1588 International Symposium on Clock Synchronization Measurement, Control and Communication (ISPCS) was held at the National Physical Laboratory in London, UK, from September 18 to 22,2023. Saisi attended as scheduled, collaborating with global partners to explore clock synchronization technologies and distributed applications based

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Intelligent Chain Data Exchange, anchoring industry trends! Saisi showcases new products at the 11th China (Western) Electronics Information Expo 2023

Jan. 26, 2026

Intelligent Chain Data Exchange, anchoring industry trends! Saisi showcases new products at the 11th China (Western) Electronics Information Expo 2023

From July 13 to 15,2023, Saisi showcased its high-precision clock chips, OCXO, clock systems and other products at the "11th China (Western) Electronics Information Expo" in Chengdu Century City New International Convention and Exhibition Center.

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The Application of Atomic Clocks in Airports

Nov. 24, 2025

The Application of Atomic Clocks in Airports

In the field of modern air transportation, the accuracy of time is not only a technical issue but also a key link related to safety. Among numerous high-precision timekeeping devices, atomic clocks, with their outstanding stability and precision, have become an indispensable technical support for airports worldwide.

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The Importance of Time Synchronization Servers in the Financial Sector

Sep. 26, 2025

The Importance of Time Synchronization Servers in the Financial Sector

With the continuous advancement of technology, the financial industry is undergoing a continuous digital transformation. In this process, the application of time synchronization technology has become particularly important. As an efficient and reliable time synchronization device

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Call Me

+86 173 6733 7390

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No. 1376, Shunze Road, Nanhu District, Jiaxing City, Zhejiang Province