Sunny Electronics, The Republic of Korea - Komachine Supplier Profile and Product List

- Sunny Electronics Co., Ltd. is a company specializing in the manufacturing and sale of crystal units and their applied products, core components for the electronics and communication industries, since its establishment in 1966. With a long history, the company supplies high-quality crystal components to domestic and international markets, contributing to the development of the electronics industry. The company focuses on developing high-reliability components for automotive electronics and high-frequency oscillators for 5G communication, meeting the demands for miniaturization and high performance in the era of the 4th Industrial Revolution. Through continuous technological innovation and quality enhancement, it secures competitiveness in the global electronic components market.Sunny Electronics Co., Ltd. is a company specializing in the manufacturing and sale of crystal units and their applied products, core components for the electronics and communication industries, since its establishment in 1966. With a long history, the company supplies high-quality crystal components to domestic and international markets, contributing to the development of the electronics industry. The company focuses on developing high-reliability components for automotive electronics and high-frequency oscillators for 5G communication, meeting the demands for miniaturization and high performance in the era of the 4th Industrial Revolution. Through continuous technological innovation and quality enhancement, it secures competitiveness in the global electronic components market.
- Crystal Unit: A diverse product line including models such as SX-A32, SX-A8, SX-21, SX-22, SX-32, SX-8, SX-6, SX-7, SX-1, SX-3, SX-5, ATS Series, UM-1, UM-5, HC-49U. Specifically, the development of small SMD type products like SX-A21 (2.0*1.6mm) and SX-16 (1.6*1.2mm). The ATS Series features a 2-pin through-hole type, utilizing AT-Cut or BT-Cut methods, and complying with Pb-free and RoHS standards.Crystal Unit: A diverse product line including models such as SX-A32, SX-A8, SX-21, SX-22, SX-32, SX-8, SX-6, SX-7, SX-1, SX-3, SX-5, ATS Series, UM-1, UM-5, HC-49U. Specifically, the development of small SMD type products like SX-A21 (2.0*1.6mm) and SX-16 (1.6*1.2mm). The ATS Series features a 2-pin through-hole type, utilizing AT-Cut or BT-Cut methods, and complying with Pb-free and RoHS standards.
- Crystal Oscillator: Modular components that output stable frequencies by combining an oscillation circuit with a crystal unit. Production of various types of oscillators including TCXO (Temperature Compensated Crystal Oscillator), VCXO (Voltage Controlled Crystal Oscillator), VCTCXO (Voltage Controlled Temperature Compensated Crystal Oscillator), and OCXO (Oven Controlled Crystal Oscillator). Possessing technology for developing high-frequency differential output oscillators (LVDS, LVPECL, CML) of 1GHz or more for 5G communication.Crystal Oscillator: Modular components that output stable frequencies by combining an oscillation circuit with a crystal unit. Production of various types of oscillators including TCXO (Temperature Compensated Crystal Oscillator), VCXO (Voltage Controlled Crystal Oscillator), VCTCXO (Voltage Controlled Temperature Compensated Crystal Oscillator), and OCXO (Oven Controlled Crystal Oscillator). Possessing technology for developing high-frequency differential output oscillators (LVDS, LVPECL, CML) of 1GHz or more for 5G communication.
- Crystal Filter: Filter products that allow only specific frequency bands to pass. Providing high-quality electronic components such as Monolithic Crystal Filters.Crystal Filter: Filter products that allow only specific frequency bands to pass. Providing high-quality electronic components such as Monolithic Crystal Filters.
- High-Reliability Crystal Unit Development Technology: Capability to develop high-reliability crystal units for automotive applications that operate stably across a wide temperature range of -40℃ to +150℃. This represents essential technical prowess for the automotive electronics market requiring stable performance in extreme environments.High-Reliability Crystal Unit Development Technology: Capability to develop high-reliability crystal units for automotive applications that operate stably across a wide temperature range of -40℃ to +150℃. This represents essential technical prowess for the automotive electronics market requiring stable performance in extreme environments.
- Over 50 Years of Unique Experience and Specialization: A deep history and accumulated technical know-how of over 50 years, focusing solely on crystal units and their applied products since its founding in 1966. This provides a competitive edge based on high reliability and expertise in the electronic components market.Over 50 Years of Unique Experience and Specialization: A deep history and accumulated technical know-how of over 50 years, focusing solely on crystal units and their applied products since its founding in 1966. This provides a competitive edge based on high reliability and expertise in the electronic components market.
- Leading Technology Development and R&D Investment: Continuous investment in developing high-value-added products that lead next-generation markets, such as high-reliability crystal units for vehicles and high-frequency oscillators of 1GHz or more for 5G communication. This demonstrates a proactive response capability to the rapidly changing electronic industry environment.Leading Technology Development and R&D Investment: Continuous investment in developing high-value-added products that lead next-generation markets, such as high-reliability crystal units for vehicles and high-frequency oscillators of 1GHz or more for 5G communication. This demonstrates a proactive response capability to the rapidly changing electronic industry environment.
- Diversified High-Quality Product Lineup: Possession of a wide range of crystal components, from small SMD types to high-precision, high-frequency, and temperature-compensated types, satisfying diverse customer requirements. Specifically, providing products optimized for various applications such as microprocessor clocks and communication RF.Diversified High-Quality Product Lineup: Possession of a wide range of crystal components, from small SMD types to high-precision, high-frequency, and temperature-compensated types, satisfying diverse customer requirements. Specifically, providing products optimized for various applications such as microprocessor clocks and communication RF.
- Global Standard Quality Certifications and Management System: Acquisition of international quality and environmental management system certifications including ISO 9001, ISO 14001, IATF 16949 (formerly ISO/TS 16949), and AEC-Q200. This signifies stringent quality control and reliability assurance capabilities for customer satisfaction.Global Standard Quality Certifications and Management System: Acquisition of international quality and environmental management system certifications including ISO 9001, ISO 14001, IATF 16949 (formerly ISO/TS 16949), and AEC-Q200. This signifies stringent quality control and reliability assurance capabilities for customer satisfaction.
- Global Production and Sales Network: Operating production facilities in China in addition to its headquarters in Chungju, and maintaining offices in Singapore and the United States, strengthening its position in the global market. Capability to stably supply products to domestic and international electronic product manufacturers.Global Production and Sales Network: Operating production facilities in China in addition to its headquarters in Chungju, and maintaining offices in Singapore and the United States, strengthening its position in the global market. Capability to stably supply products to domestic and international electronic product manufacturers.
- Electronics and Communication Industry: Used as core components in various electronic devices such as TVs, computers, mobile phones, and communication equipment.Electronics and Communication Industry: Used as core components in various electronic devices such as TVs, computers, mobile phones, and communication equipment.
- Automotive Electronics Industry: Supplying high-reliability crystal units and oscillators to meet the demands of the automotive electronics market.Automotive Electronics Industry: Supplying high-reliability crystal units and oscillators to meet the demands of the automotive electronics market.
- 5G Communication Infrastructure: Providing essential components for areas requiring precise frequency control, such as 5G base stations, network switches, and broadcasting equipment.5G Communication Infrastructure: Providing essential components for areas requiring precise frequency control, such as 5G base stations, network switches, and broadcasting equipment.
- Internet of Things (IoT) and Mobile Devices: Applied in fields requiring miniaturization and high performance, including small base stations, vehicle internet, and mobile devices.Internet of Things (IoT) and Mobile Devices: Applied in fields requiring miniaturization and high performance, including small base stations, vehicle internet, and mobile devices.
- Aerospace and Precision Instruments: Supplying components for applications requiring high-precision frequency control, such as aircraft, satellites, and watches.Aerospace and Precision Instruments: Supplying components for applications requiring high-precision frequency control, such as aircraft, satellites, and watches.
- China, SingaporeChina, Singapore
- United StatesUnited States
- ISO 9001 Quality Certification: Acquired from the Korea Research Institute of Industrial Technology on September 21, 1995.ISO 9001 Quality Certification: Acquired from the Korea Research Institute of Industrial Technology on September 21, 1995.
- ISO 14001 Environmental Management System Certification: Establishment of an environmental management system in accordance with international standards.ISO 14001 Environmental Management System Certification: Establishment of an environmental management system in accordance with international standards.
- IATF 16949 (formerly ISO/TS 16949) Automotive Quality Management System Certification: Meeting the stringent quality requirements of the automotive industry.IATF 16949 (formerly ISO/TS 16949) Automotive Quality Management System Certification: Meeting the stringent quality requirements of the automotive industry.
- AEC-Q200 Certification: Compliance with reliability and quality standards for automotive components.AEC-Q200 Certification: Compliance with reliability and quality standards for automotive components.
- Patent Application for Cleaning and Drying Method of Crystal Blanks for High-Reliability Crystal Units: An effort towards technological innovation in August 2022.Patent Application for Cleaning and Drying Method of Crystal Blanks for High-Reliability Crystal Units: An effort towards technological innovation in August 2022.
- Selected as 'Excellent Quality Competitiveness Company' at the National Quality Management Convention for 4 consecutive times: Recognition of excellence in quality management from the Minister of Trade, Industry and Energy (as of November 2025).Selected as 'Excellent Quality Competitiveness Company' at the National Quality Management Convention for 4 consecutive times: Recognition of excellence in quality management from the Minister of Trade, Industry and Energy (as of November 2025).