
High-Reliability Electrolytic Capacitor for Communication,
Automotive & Industrial Applications
About KOSHIN International (Hong Kong)
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Founded in 1984 and headquartered in Hong Kong, KOSHIN International Ltd., under the brands KOSHIN and KOAS, is a leading global manufacturer of aluminum electrolytic and polymer (solid) capacitors.
With fully automated factories in Shenzhen and Hunan producing up to 7 billion capacitors annually, KOSHIN is recognized as a national high-tech enterprise and trusted OEM supplier to major telecom and automotive players like Huawei and Ericsson.
Product Categories
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Design Consultancy & Engineering Support
At McKinsey Electronics, we partner with you to integrate KOSHIN’s capacitors seamlessly into your designs, ensuring optimal performance and long-term reliability:
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Component Specification & Selection: Advising on capacitance, voltage rating, ESR/impedance and thermal derating to meet your design criteria.
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System Integration & Layout Optimization: PCB best practices for minimizing ESR/ESL, proper thermal management and mechanical stability.
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Reliability Modeling & Testing: Utilize KOSHIN’s published endurance and ripple-current data for accurate lifetime prediction and validation.
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Compliance & Quality Assurance: Assurance of IECQ certification, RoHS compliance, conflict-mineral policies and automotive-grade qualifications
Why Choose McKinsey Electronics
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High-Volume Expertise: We understand component behavior at scale for communication infrastructure and industrial systems.
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Advanced Material Technologies: Combining aluminum electrolytic and polymer capacitors for application-specific optimization.
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Performance-Driven Partnerships: Aligned with KOSHIN’s automated manufacturing and stringent quality standards.
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Faster Time-to-Market: Our support accelerates design-to-production timelines leveraging KOSHIN’s established supply chain.
Let’s Build the Future Together
Need expert capacitor engineering for telecom, industrial, automotive, or power-electronics applications?
Contact McKinsey Electronics today to explore how KOSHIN’s high-quality electrolytic and polymer capacitors can reliably elevate your system.
Recent Products
KOSHIN Radial Electrolytic Capacitors (e.g., 1000 µF/25 V)
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Standard components featuring low ESR and long-life performance for general power applications.
KOAS Polymer Solid Capacitors (KS Series)
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Solid-state capacitors with low ESR tailored for switching power supply and digital equipment.


Featured Product Categories
Radial Electrolytic Capacitors
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Robust and cost-effective energy storage solutions.
Surface-Mount Polymer Capacitors
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Low ESR and compact size for dense power modules.


Automotive & High-Reliability Capacitors
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AEC-Q200 compliant offerings with long endurance.
