SMT Inductor Unshielded

SMT Inductor Unshielded components are surface-mount power magnetics without a magnetic shield. They offer low DCR, strong efficiency, and competitive cost when PCB layout can manage fringe fields. Nanjing Infinity Technology, a China-based high-tech manufacturer, designs standard and custom options for industrial, telecom/5G, computing, medical, new energy, aerospace, and automotive electronics.

Unshielded SMT Inductor Advantages

These inductors deliver excellent copper-loss performance and high Q with the right core and winding choices. Compact SMD footprints support automated assembly with reliable reflow soldering. When field containment is not critical, unshielded parts can reduce cost and simplify thermal paths versus shielded types.

• Electrical: low DCR, suitable SRF, and high Q in target bands
• Mechanical: low profile options, stable coplanarity, consistent pick-and-place
• System: strong cost-performance where EMI is controlled by layout

Specifications for Unshielded SMT Inductors

Select values by confirming inductance at test and operating frequencies, then balancing DCR, Irms, and Isat for efficiency and thermal rise. Review SRF, impedance, and Q across the switching band to ensure stable operation and effective filtering. Match package, terminal finish, and MSL to your process.

• Inductance and tolerance for ripple and loop stability
• DCR for loss budgeting and temperature rise
• Irms/Isat with margin for continuous and transient loads
• SRF and Q aligned to switching frequency and harmonics
• Footprint and height from 0603 to 2220 and drum-core formats
• RoHS compliance; ISO9001-based quality controls

Applications of Unshielded SMT Inductors

Common uses include buck, boost, and POL converters, LED drivers, and input/output LC filters. They suit equipment that values efficiency and compact size, including automation systems, telecom/5G gear, computing hardware, medical devices, new energy platforms, aerospace modules, and automotive electronics. Verify controller compatibility, thermal limits, and layout spacing to manage coupling.

Selection Guide for Unshielded SMT Inductors

• Define electrical targets: inductance, ripple, efficiency, and switching frequency.
• Check current ratings: set Irms/Isat margins for worst-case conditions.
• Assess frequency behavior: keep SRF above key energy bands; confirm Q.
• Choose core: ferrite for low DCR; composite for soft saturation under high ripple.
• Plan layout: separate from sensitive nodes; use grounded copper where needed.

Unshielded vs. Shielded Inductors

Choose unshielded for cost, low profile, and efficiency when the PCB can handle fringe fields. Choose shielded near sensitive analog, RF, or high-impedance nodes. Prototype and measure in your real layout to confirm coupling and EMI margins.

Engineering Support, Samples & Customization for SMT Inductor Unshielded

As a manufacturer, Infinity offers customization of inductance, current rating, size, and materials, plus OEM/ODM engagement. Request free samples, datasheets, and models to accelerate validation. Documentation supports ISO9001 and RoHS; UL/CE is available where applicable. Share your specs and target volumes to receive a fast proposal and quotation.