Frequently Asked Questions

What passive component categories does Sunlord offer?

Sunlord offers a comprehensive portfolio of passive electronic components including: (1) Power Inductors: Shielded and non-shielded SMD inductors for DC-DC converters, ranging from sub-1μH to 1mH+ with current ratings up to 10A+. (2) Chip Beads: Ferrite beads for EMI suppression in various sizes (0402 to 1206) with impedance ratings from 10Ω to 2000Ω. (3) Common Mode Chokes: For signal and power line filtering, with common mode impedance from 30Ω to 2000Ω and current ratings up to 6A. (4) Multilayer Ceramic Capacitors: X7R, X5R, and NP0 dielectrics in sizes from 0402 to 1206, capacitance from pF to 100μF+. Each category includes multiple series optimized for different applications and performance requirements.

Browse our product categories or use our selection guide to find the right component for your application.

Sunlord product categories passive components component selection
How do I select the right Sunlord product for my application?

Selecting the right Sunlord product involves several key steps: (1) Define Requirements: Identify electrical parameters (inductance, capacitance, impedance), current/voltage ratings, and size constraints. (2) Consider Operating Conditions: Temperature range, switching frequency, and environmental factors. (3) Review Application Notes: Sunlord provides detailed application guides for each product category. (4) Evaluate Samples: Request samples for testing in your actual circuit. (5) Consult FAE: Our applications engineers can provide recommendations based on your specific requirements. For power inductors, consider saturation current and DCR. For chip beads, match impedance to your noise frequency. For capacitors, consider dielectric type and voltage derating.

Download our selection guides or contact our FAE team for personalized recommendations.

Sunlord selection guide component selection product selection
What is the difference between Sunlord's power inductor series?

Sunlord offers several power inductor series optimized for different applications: (1) SWPA Series: Shielded SMD inductors with magnetic resin shielding, ideal for compact DC-DC converters where EMI is a concern. Available in sizes from 2.0×1.6mm to 10×10mm. (2) SPH Series: High current shielded inductors with ferrite shielding, optimized for high-efficiency applications requiring low DCR and high saturation current. (3) SDR Series: Drum core inductors with open magnetic circuit, offering highest saturation current and lowest DCR for high-power applications. (4) SDE Series: Unshielded inductors for cost-sensitive applications where EMI is not critical. Each series offers different trade-offs between size, current capability, shielding, and cost.

Use our power inductor selection guide or contact FAE to determine the best series for your application.

Sunlord inductor series power inductor types inductor comparison
How do Sunlord chip beads compare for different frequency ranges?

Sunlord chip beads are optimized for different frequency ranges: (1) Low Frequency (1-30 MHz): Standard impedance beads (GZ series) provide effective suppression for conducted EMI in power lines. (2) Mid Frequency (30-300 MHz): Higher impedance beads (600-1000Ω @ 100MHz) for digital circuit noise suppression. (3) High Frequency (300 MHz-1 GHz): Ultra-high impedance beads and specialized high-frequency series for RF and high-speed digital applications. (4) Broadband: Some beads offer flat impedance across wide frequency ranges for general-purpose filtering. The key is to match the bead's impedance curve to your noise spectrum. For digital signals, consider the signal frequency to avoid excessive attenuation of desired signals.

Refer to our chip bead selection guide for frequency-specific recommendations or contact FAE for assistance.

chip bead frequency EMI suppression ferrite bead selection
What are the key parameters to consider when selecting Sunlord MLCC capacitors?

Key parameters for Sunlord MLCC selection: (1) Capacitance Value: Choose based on your circuit requirements - 100nF-1μF for decoupling, 10μF+ for bulk capacitance. (2) Voltage Rating: Always derate - use 50% derating for reliability (e.g., 50V capacitor for 25V circuit). (3) Dielectric Type: X7R for general purpose (-55°C to +125°C, ±15%), X5R for cost-sensitive (-55°C to +85°C, ±15%), NP0/C0G for precision (±30ppm/°C). (4) Size: 0402 for compact designs, 0603/0805 for general purpose, 1206+ for higher capacitance/voltage. (5) DC Bias Effect: X7R/X5R capacitance decreases with DC voltage - check derating curves. (6) Temperature Coefficient: Consider operating temperature range and required capacitance stability.

Use our MLCC selection guide or contact FAE for help with capacitor selection and derating calculations.

MLCC selection ceramic capacitor parameters capacitor guide