High Voltage Shielded Inductors (SDS1608~5022 SERIES) | High Current Power Inductor Manufacturer | Coilmaster Electronics
Manufacturer of Mn-Zn High Voltage Shielded SMD Inductor for DC-DC Converter, Automotive 12V/24V Filter, SDS Series. The SDS1608~5022 series are high-voltage shielded inductors engineered for superior stability in demanding power stages. Utilizing advanced Mn-Zn ferrite cores, these inductors offer enhanced energy storage, stable performance under high current, and ultralow DCR. The closed magnetic path ensures minimal EMI leakage, making them essential for rugged automotive, industrial, and high-frequency telecom applications. Coilmaster Electronics is a high-current High Current Power Inductors, Automotive Grade Chokes & Inductors,High Frequency and Planar Transformers, LAN Magnetics (RJ45), Multilayer Chip Beads manufacturer from Taiwan since 1995. Coilmaster offers AEC-Q200 certified, high-efficiency power inductors, chokes, and transformers. Specializing in low-loss, high-current components for Automotive, 5G, and Industrial applications. Contact our experts for instant support. With more than 20 years of experience in magnetic territory, Coilmaster Electronics is specialized in the production of SMD power inductors, common mode choke, high frequency transformers.
High Voltage Shielded Inductors (SDS1608~5022 SERIES)
High-Voltage Shielded SMD Power Inductors (Mn-Zn Core, Low DCR, High Isolation)
The SDS1608~5022 series are high-voltage shielded inductors engineered for superior stability in demanding power stages. Utilizing advanced Mn-Zn ferrite cores, these inductors offer enhanced energy storage, stable performance under high current, and ultralow DCR. The closed magnetic path ensures minimal EMI leakage, making them essential for rugged automotive, industrial, and high-frequency telecom applications.
Available in package sizes from 1608 up to 5022, the SDS series provides exceptional inductance coverage and high current handling. Its unique constructionāfeaturing spot-welded terminals, a ceramic base with gold plating, and a high SRF Mn-Zn coreāmaximizes insulation reliability and mechanical strength. We offer comprehensive customization options (inductance and footprint) for seamless design integration and accelerated time-to-market.
Share your switching frequency, target inductance, and peak current to receive the most suitable SDS series recommendation.
DC Bias Stability & Rugged Mechanical Reliability
This inductor series is engineered to deliver stable inductance under high DC bias with low temperature rise, ensuring predictable current handling and minimal performance drift in real operating conditions. The low DCR design reduces conduction loss, improving power efficiency and extending battery life in DC-DC converters, automotive electronics, and energy-sensitive systems. With an inductance range from 0.1ĀµH to 1500ĀµH, it supports a wide variety of power architectures, from compact point-of-load regulators to high-current power stages.
To ensure long-term mechanical and electrical reliability, the terminals are spot-welded to provide strong solder joint integrity and vibration resistance, making the design suitable for automotive and industrial environments. The ceramic base with gold plating enhances corrosion resistance and storage stability, while the heat-resistant ferrite core is fully compatible with standard reflow soldering, ensuring consistent assembly quality and robust field performance.
Performance-Based Size Selection
This series is available in three standardized footprint options, allowing engineers to quickly select the right balance between size, current handling, and thermal performance:
- SDS1608 – Optimized for compact designs where space is limited, ideal for low-to-medium current DC-DC converters and point-of-load applications.
- SDS3316 – A balanced solution offering higher saturation current and improved thermal margin for most automotive and industrial power stages.
- SDS5022 – The highest-performance option, designed for high-current and high-reliability systems where low DCR, strong DC bias stability, and superior thermal behavior are required.
As the package size increases, current capability, DC bias stability, and thermal performance improve, allowing designers to scale power handling without changing the electrical architecture.
Quick Selection Guide – Compare Size, Inductance, and Current Capability
| Series | Package Size (mm) | Inductance Range | Isat Range | Best Use Case |
SDS1608 | 6.6*4.45*2.92 | 1.0uH ~ 10000uH | 0.021A ~ 1.4A | Compact DC-DC converters, space-constrained POL rails |
SDS3316 | 12.95*9.4*5.08 | 1.0uH ~ 1000uH | 0.32 ~ 11.0A | Automotive and industrial DC-DC with balanced thermal and current margin |
| SDS5022 (Download Datasheet) | 18.54*15.24*7.62 | 1.0uH ~ 1000uH | 0.8 ~ 18.0A | High-current power stages requiring low DCR and strong |
Characteristic
Mn-Zn ferrite shielded core for high permeability and current stability
Optimized DC bias performance with low temperature rise
High breakdown voltage for rugged DC-DC converters
Closed magnetic path for minimal EMI leakage
Features
- Superior mechanical reliability from spot-welded terminals (Long-tail: spot-welded inductors)
- Excellent insulation and anti-corrosion via ceramic gold-plated base
- Ultra-low DCR for improved efficiency and extended runtime
- High Self-Resonant Frequency (SRF) and insulation resistance
- Supports reflow soldering and automated SMT
Applications
- Automotive Power Modules (12V/24V Systems & Filtering)
- High-Voltage DC-DC Converters in Industrial & Telecom
- Backlight and Display Power Rails (TFT/USB/LCD)
- High-Current Regulated Power Supplies
- Portable Computers & Communication Devices
| Image | name | Size(mm) | Inductance(uH) | Isat(A) | Irms(A) | DCR(mĪ©) | Action |
|---|---|---|---|---|---|---|---|
| 1uH, 3A SMD Backlight Shielded Inductor | 6.6x4.45x2.92 | 1 | 1.4 | 3 | 40 | |
|
| 1.5uH, 2.3A SMD Backlight Shielded Inductor | 6.6x4.45x2.92 | 1.5 | 0.93 | 2.3 | 45 | |
|
| 2.2uH, 1.8A SMD Backlight Shielded Inductor | 6.6x4.45x2.92 | 2.2 | 0.92 | 1.8 | 50 | |
|
| 3.3uH, 1.6A SMD Backlight Interference Filter | 6.6x4.45x2.92 | 3.3 | 0.75 | 1.6 | 55 | |
|
| 4.7uH, 1.4A SMD Backlight Shielded Inductor | 6.6x4.45x2.92 | 4.7 | 0.58 | 1.4 | 60 | |
|
| 6.8uH, 1.2A SMD Backlight Shielded Inductor | 6.6x4.45x2.92 | 6.8 | 0.58 | 1.2 | 65 | |
|
| 8.2uH, 1.1A SMD Backlight Shielded Inductor | 6.6x4.45x2.92 | 8.2 | 0.47 | 1.1 | 70 | |
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| 10uH, 1A SMD Backlight Shielded Inductor | 6.6x4.45x2.92 | 10 | 0.37 | 1 | 75 | |
|
| 15uH, 0.8A SMD Display Backlight Inductor | 6.6x4.45x2.92 | 15 | 0.31 | 0.8 | 90 | |
|
| 22uH, 0.7A SMD Backlight Shielded Inductor | 6.6x4.45x2.92 | 22 | 0.3 | 0.7 | 110 | |
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| 33uH, 0.6A SMD Backlight Interference Filter | 6.6x4.45x2.92 | 33 | 0.3 | 0.6 | 190 | |
|
| 47uH, 0.5A SMD Backlight Shielded Inductor | 6.6x4.45x2.92 | 47 | 0.24 | 0.5 | 230 |
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High Voltage Shielded Inductors (SDS1608~5022 SERIES) | High Current Power Inductor Manufacturer | Coilmaster Electronics
Located in Taiwan since 1995, Coilmaster Electronics Co., Ltd. has been a manufacturer of magnetic components. Its main magnetic components include, High Voltage Shielded Inductors (SDS1608~5022 SERIES), common mode chokes, SMD molding power chokes, chock coil inductors, SMD shielded and semi-shielded power inductors, low profile and high current power inductors, high voltage power inductors, ethernet and LAN power transformers, flat wire inductors, RJ45 jacks with integrated magnetics and high frequency transformers, and ceramic or air coil multilayer chip inductors.
Coilmaster offers AEC-Q200 certified, high-efficiency power inductors, chokes, and transformers. Specializing in low-loss, high-current components for Automotive, 5G, and Industrial applications. Contact our experts for instant support. With more than 20 years of experience in magnetic territory, Coilmaster Electronics is specialized in the production of SMD power inductors, common mode choke, high frequency transformers.
Coilmaster Electronics has been providing customers with high current power inductors since 1995, with both advanced technology and 29 years of experience, Coilmaster Electronics ensures that each customer's requirements are met.