Global Leader in Frequency Control & Timing Devices

Connect the world with smaller size, higher frequency, and higher reliability frequency products

Siward & Digi-Key Store is now live on 2022

Explore Siward's portfolio on Digi-key

Crystal

Our wide range of crystal units include MHz crystal, 32.768 kHz tuning fork crystal, and thermistor crystal in applications such as consumer electronics, wearable devices, and mobile phone.

Oscillator

A wide range of high performance XO (Crystal Oscillator) features various output logic, low jitter, and low phase noise for 5G network infrastructure, data center, server, and automotive application.

Enhance your wireless communication systems with Siward's low phase noise TCXO, engineered for optimal frequency and temperature stability. Designed for optimal performance, our TCXO excels in low phase noise, tight frequency, and temperature stability, making it ideal for Wi-Fi, GPS, GNSS, IoT, 5G telecommunication, and connected consumer devices.

Our TCXO series features a noise floor of -165dBc/Hz at 100 kHz and supports various output formats, including CMOS and Clipped-sine. Available in industry-standard miniature sizes of 2.0 x 1.6 mm and 1.6 x 1.2 mm, these oscillators cover a frequency range from 26 MHz to 80 MHz. They offer a stability of ±0.5ppm and operate within a temperature range of -40°C to +85°C.

VCTCXO

A series of VCTCXO (Voltage Controlled Temperature Compensated Crystal Oscillator) with great stability in compact package size range from 2.5 x 2.0 to 1.6 x 1.2 mm, widely used in GNSS/GPS, 5G network infrastructure, and automotive.

VCXO

Our VCXO (Voltage Controlled Crystal Oscillator) supports a set of standard frequencies with any combination of voltage (1.8V, 2.5V, to 3.3V) and it's ideal for applications in 5G network infrastructure, data center, and industrial markets.

RF Bonded Wafer

Siward engineered Piezoelectric multi layered wafer for RF filter components in requirements demanded by mobile, and other high speed communication.

Pulsing for Next-gen Networking

Siward has wide range of applications in the network communication industry, Wi-Fi, BT, UWB, and Rora, in order to meet technical requirements of next-generation of networking, providing higher transmission speed, longer transmission distance, and more stable network.

Learn more

Every Second Counts when Everything Connected

With rapid development of technology and COVID-19 pandemic, IoT products and wearable device have penetrate into our daily life and work. Siward provides specific product with miniaturization in size, low power consumption, flexibility and durability to meet the requirement.

Learn more

Young man with mobile phone enjoying time with friends

Capture Every Moment Over Time

Siward has been working in mobile industry for many years, supporting tier 1 mobile IC design house customers, and providing high-stability, high-precision, high-frequency products to meet various customer needs.

Learn more

Timeless Heartbeat of Electronics

Siward has a comprehensive product portfolio, diverse in types, and a wide frequency and package sizes range to meet the needs of various market characteristics. We always pay close attention to the cusotmer needs and market trends, and respond quickly to accelerate time-to-market.

Learn more

Automotive fast-driving car with light reflections

Driving the Future of Timing

All automotive products have passed the AEC-Q200 certification standard and comply with the IATF16949 automotive industry quality management system, which can provide highly stable and accurate clocks in extreme and high temperature environments.

Learn more

Networking Communication

IoT & Wearable

Mobile

PC & Consumers

Automotive

News & Activities

2023-09-08

Investor News

2023 / 08 Statement of Operating Revenue

2023-08-25

ESG

The First Time in Taiwan - Carbon Neutral Industry-University Cooperation Signing Ceremony

The first in the country - carbon neutral industry-university cooperation signing ceremony. Siward C...

2023-08-08

Investor News

2023 / 07 Statement of Operating Revenue

See all news and activities

Blog

The Integral Role of Oscillators in Modern Automotive Industry

Explore the vital role of oscillators in modern automotive tech. Learn how they power key features i...

Load Capacitance: The Key to Precision in Crystal Units

Unlock the precision in crystal units by knowing the role of load capacitance, debunking misconcepti...

Why Are 32.768 kHz Crystals So Important?

Delve into the unique properties, applications, and role of 32.768 kHz crystals in real-time clocks,...

Learn more

Industry Leader in Frequency Control & Timing Devices

In response to the rapid-growing demand for global telecommunications, Siward was established in 1988. We are world leading manufacturer in crystals and oscillators industry, providing products range from synthetic quartz to in-house design and manufacture crystal units. We focus on cutting-edge photolithography technology development and engage actively in research and development to deliver best-in-class products with excellent reliability and stability. We are able to supply a broad product portfolio, including quartz crystal, crystal oscillator (XO), TCXO, VCXO and VCTCXO to meet customers demand from different industries and applications.

About Siward