Ultra-Compact, Ultra-Low Voltage: Kyocera Unveils the KC1210A Series Clock Oscillators
Enabling Energy-Efficient Design for Next-Generation Smartphones and Wearables
November 11, 2025 – Kyocera Corporation (President: Hideo Tanimoto; hereinafter “Kyocera”) announces the development of the KC1210A Series clock oscillators. These oscillators offer the world’s smallest size*1 and operate at an ultra-low voltage of 0.9V, which is approximately 50% lower than Kyocera’s previous conventional clock oscillator models. Sample shipments are now available, with full-scale mass production planned for the summer of 2026.
KC1210A Series
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Key Features:
- Ultra-compact design and low profile: 1.25mm × 1.05mm × 0.5mm max.
- Low-voltage operation: 0.9V, about 50% lower than previous models.
■ Background of Development
With the increasing functionality of smartphones and wearables, including AI, high-speed communication, and large-scale data processing, power consumption is also rising. This leads to faster battery depletion and more frequent charging. To address these issues, demand is rising for compact, low-voltage oscillators. In response, Kyocera developed the KC1210A Series. Kyocera will continue to innovate to meet market needs and support the evolution of advanced devices.
■ Features of the KC1210A Series
1. Ultra-compact design and low profile: 1.25mm × 1.05mm × 0.5mm max.
Kyocera’s proprietary compact element design technology*2 enables the KC1210A Series to deliver strong performance in a smaller form factor. The mounting area is reduced by approximately 60% to 1.31 mm², and the volume is about one-quarter of that of Kyocera’s KC2016K clock oscillator model, supporting high-density mounting for advanced devices.
Size comparison of Kyocera’s conventional KC2016K (left) and the new KC1210A (right)
2. Low-voltage operation: 0.9V, about 50% lower than previous models
The KC1210A Series utilizes a newly developed low-voltage oscillator IC, enabling operation at 0.9V, approximately 50% lower than the voltage required by Kyocera’s previous models. This is expected to reduce power consumption by approximately 50% compared to earlier Kyocera oscillator models, supporting energy savings in smartphones and wearable devices.
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Main Applications
- Smartphones
- VR Goggles / VR Headsets
- Wearable Devices
- IoT modules, etc.
■ KC1210A Series – Product Overview
| Product Name | Clock Oscillators |
| Model | KC1210A Series |
| Dimensions | 1.25mm × 1.05mm × 0.5mm (Max.) |
| Production Site | Higashine Plant, Yamagata, Japan |
| Mass Production | Scheduled for Summer 2026 |
| Operating Temperature Range | -40 to +85°C / -40 to +105°C |
■ Electrical Characteristics
| Specification | |
| Output Frequency Range | 9.6MHz to 100MHz |
| Output Type | CMOS |
| Frequency Tolerance* | ±25 × 10⁻⁶ (-40 to +85°C), ±50 × 10⁻⁶ (-40 to +105°C) |
| Supply Voltage | 0.8V to 1.8V |
| Current Consumption | 3.5mA (Max.) / 50MHz, 0.9V, CL = 15pF |
* Frequency tolerance includes initial tolerance 25C, operating temperature characteristics, supply voltage variation, load capacitance variation, aging (1st year 25C), and effects of vibration and shock.
*1 – Based on Kyocera research as of August 2025, among clock oscillators utilizing a ceramic package.
*2 – Kyocera’s proprietary technology for designing compact crystal elements.
ABOUT KYOCERA
Kyocera Corporation (TOKYO:6971, the parent and global headquarters of the Kyocera Group, was founded in 1959 as a producer of fine ceramics (also known as “advanced ceramics”). By combining these engineered materials with metals and integrating them with other technologies, Kyocera has become a leading supplier of industrial and automotive components, semiconductor packages, electronic devices, smart energy systems, printers, copiers, and mobile phones. During the year ended March 31, 2025, the company’s consolidated sales revenue totaled 2 trillion yen (approx. US$13.5 billion*). Kyocera is ranked #1,123 on Forbes magazine’s 2025 “Global 2000” list of the world’s largest publicly traded companies, and has been named among “The World’s 100 Most Sustainably Managed Companies” by The Wall Street Journal *Conversion is provided based on TTM as of March 31, 2025
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