Technical Support

HJC provides comprehensive selection guides for all capacitor types in our Technical Support section. You'll find detailed guides for MLCC selection (dielectric types, case sizes, voltage ratings), aluminum electrolytic capacitors (lifetime calculation, ripple current, derating), film capacitors (polyester vs polypropylene, self-healing), and supercapacitors (energy calculation, series connection, charging). Each guide includes selection criteria, application recommendations, and design tips from our FAE team.

Browse our Technical Support articles or contact our FAE team for personalized selection assistance.

HJC provides technical support through our authorized distributor network. You can access: 1) Online Resources - Selection guides, application notes, and FAQs in our Technical Support section, 2) FAE Consultation - Contact our Factory Application Engineers for complex applications, 3) Sample Requests - Evaluation samples for prototyping, 4) Spice Models - Simulation models for circuit design, 5) Custom Solutions - Engineering support for custom specifications. For urgent technical questions, contact our support hotline or email our technical team.

Start with our online technical resources; contact FAE support for application-specific questions.

HJC provides extensive design resources including: Application Notes - Detailed technical papers on capacitor selection and application, Selection Guides - Step-by-step guides for choosing the right capacitor, Spice Models - Simulation models for circuit analysis, Reference Designs - Example circuits for common applications, Evaluation Kits - Sample kits for prototyping, Thermal Calculators - Online tools for lifetime estimation, Webinars - Technical training sessions. All resources are available through our website or by contacting our technical support team.

Visit our Technical Support section to download design resources or request specific application assistance.

Capacitor lifetime calculation depends on capacitor type: For aluminum electrolytics, use the Arrhenius equation: Lifetime = Rated Lifetime × 2^((Rated Temp - Actual Temp)/10) × Voltage Factor. For film capacitors, lifetime is typically 100,000+ hours with gradual degradation. For supercapacitors, cycle life is 500,000+ cycles. Our Technical Support section includes detailed lifetime calculation guides and online calculators. For complex applications, our FAE team can provide detailed lifetime analysis based on your specific operating conditions.

Use our online lifetime calculators or contact our FAE team for application-specific lifetime analysis.

For switching power supplies, we recommend a combination of capacitor types: MLCCs (X7R, 100nF-10µF) for high-frequency decoupling and input filtering; Aluminum electrolytics for bulk capacitance and energy storage; Film capacitors for output filtering in high-frequency applications; and Solid polymer capacitors for low-ESR requirements. The specific selection depends on switching frequency, ripple current, and temperature requirements. Our MLCC Selection Guide and Electrolytic Capacitor Selection Guide provide detailed recommendations.

Review our power supply design guides or contact our FAE for application-specific recommendations.

Samples of HJC capacitors can be requested through our authorized distributor network. We offer sample kits for each product family including MLCCs, aluminum electrolytics, film capacitors, and supercapacitors. Sample requests typically take 1-2 weeks for delivery depending on location and part availability. For high-volume production qualification, we can provide larger sample quantities and engineering support. Contact our sales team or submit a sample request through our website.

Contact our sales team or distributor to request samples for your evaluation and prototyping.

Yes, HJC provides Spice models for many of our capacitor products. These models include equivalent series resistance (ESR), equivalent series inductance (ESL), and capacitance values across frequency and temperature. Models are available for MLCCs, aluminum electrolytics, and film capacitors. The models help engineers accurately simulate circuit behavior including ripple voltage, transient response, and frequency characteristics. Contact our technical support team to request Spice models for your specific part numbers.

Contact technical support to request Spice models for the specific HJC part numbers in your design.

Minimum order quantities (MOQ) for HJC capacitors vary by product type: MLCCs typically 10,000-100,000 pieces depending on case size; Aluminum electrolytics 1,000-10,000 pieces; Film capacitors 500-5,000 pieces; Supercapacitors 100-1,000 pieces. As an authorized distributor, we stock common parts for immediate delivery and can support smaller quantities. For high-volume production, contact our sales team for pricing and scheduling.

Contact our sales team with your specific requirements for MOQ and pricing information.