Our Products

Air Core Inductor / Flat Wire

Edgewise-wound flat wire air core coil. The flat section lowers resistance at high frequency, where skin effect confines current to the conductor surface and a round wire's centre stops contributing.

Inductance: 0.05uH - 50uH

Air Core Inductor / Round Wire

Self-supporting air core coil wound in round copper or aluminium. With no core there is nothing to saturate and no core loss, so inductance holds constant with current — which is why they persist in RF and crossover work.

Inductance: 0.05uH - 100uH

Custom Air Core Inductor

Precision air core inductors built to a target inductance and Q, free from core loss. Specify the operating frequency and the mechanical envelope and we will work out the diameter, pitch and turns.

Inductance: To Specification

CMC / 20 µH / 0.7 A

Compact common mode choke around 20 µH at 0.7 A for 250 V class adapter and small SMPS EMI stages.

Inductance: 20 µH class

CMC / Compact / Appliance EMI

Compact common mode choke for appliance and power-supply EMI filters. Wound and tested in-house for L and DCR.

Style: Compact THT CMC

CMC / High-µ / Power Line

High-µ ferrite common mode choke for power-line EMI filtering. Wound and 100% tested for L and DCR in-house.

Core: High-µ ferrite

CMC / ~10 A / Line Filter

Common mode choke for general-purpose line filtering around the 10 A class. Wound and tested in-house for L and DCR.

Rated Current: ~10 A class

EE2506 / 4P / Horizontal

EE2506 based common mode choke, offering a low profile horizontal solution for EMI suppression.

Inductance: 0.57mH - 47mH

EE2506 / 4P / Vertical

Vertical EE2506 common mode choke, combining standard EE core geometry with line filtering capabilities.

Inductance: 0.57mH - 47mH

EE3007 / 4P / Vertical

Heavy-duty EE30/7 common mode choke for demanding power line filtering. The largest EE-core choke in the range, for line currents where a toroid of equivalent impedance would not fit the board.

Inductance: 1mH - 68mH

ET24 / 4P / Vertical

ET24 common mode choke with excellent attenuation characteristics for broad frequency ranges.

Mounting: THT

ET28 / 4P / Vertical

Robust ET28 common mode choke for higher current applications requiring reliable noise suppression.

Mounting: THT

ET35 / 4P / Vertical

Large ET35 common mode choke for high-power industrial equipment line filtering.

Mounting: THT

Ring Core CMC / 2×0.57 mH / 50 A

Very high current ring-core CMC for EV, UPS and industrial bus filtering where 50 A class common-mode suppression is required.

Inductance: 2×0.57 mH class

Ring Core CMC / 2×5 mH / 10 A

High-current ring-core common mode choke, 2×5 mH class at 10 A, for conducted EMI on power lines and charger inputs.

Inductance: 2×5 mH class

T10

Smallest toroidal choke in the range, for adapters and low-power supplies where board area is the binding constraint. Bifilar wound so common mode impedance stays high without choking the differential current.

Inductance: 0.5mH - 10mH

T12.5

Compact T12.5 toroidal common mode choke. Excellent for minimizing leakage flux in tightly packed supplies.

Inductance: 0.7mH - 15mH

T14

T14 toroidal choke for LED drivers and small SMPS front ends. A common step up when a T12.5 runs out of window area before it runs out of impedance.

Inductance: 1mH - 22mH

T16

T16 toroidal common mode choke for appliance and lighting power inputs, wound to hold impedance across the 150kHz-30MHz conducted band.

Inductance: 1mH - 33mH

T20

T20 toroidal choke for mid-power industrial supplies and battery chargers. Larger window allows heavier wire where the line current rules out a smaller core.

Inductance: 1mH - 47mH

T23

T23 toroidal common mode choke for three-phase auxiliaries and higher-current single-phase inputs.

Inductance: 1mH - 47mH

T25

Standard T25 toroidal common mode choke. Provides high impedance over a wide frequency band.

Inductance: 1mH - 68mH

T30

T30 toroidal choke for inverter and drive inputs, where both the line current and the emissions target are high.

Inductance: 2mH - 68mH

T35

Largest toroidal choke in the standard range, for solar inverters and industrial drives. Wound to order in round or flat wire depending on the current and the space available.

Inductance: 2mH - 100mH

UT20 / 4P / Vertical

UT20 common mode choke offering high inductance in a compact vertical package.

Mounting: THT

UU10.5 / 4P / Vertical

UU10.5 vertical common mode choke for mains line filtering in consumer electronics.

Mounting: THT

UU9.8 / 4P / Horizontal

Compact UU9.8 common mode choke for effective EMI filtering in small power supplies.

Mounting: THT

UU9.8 / 4P / Vertical

Vertical UU9.8 common mode choke designed to save PCB space while suppressing line noise.

Mounting: THT

UU9.8 / 8.2 mH / 250 mA

UU9.8 common mode choke wound to ~8.2 mH at 250 mA for compact SMPS and adapter EMI stages.

Inductance: 8.2 mH class

Copper Foil

Litz Wire

Copper Drum Coil / 8×12

Copper drum-coil inductor on an 8×12 mm core for filtering and energy storage in compact assemblies.

Core: 8×12 mm drum

Drum Core / 33 µH / Shielded

Shielded drum-core inductor around 33 µH for compact DC-DC stages where EMI from an open drum is unacceptable.

Inductance: 33 µH class

Drum Core 10x12

Medium size 10x12 drum core inductor. Offers a good balance of inductance and current rating.

Inductance: 3.3uH - 52.0uH

Drum Core 12x15

Large 12x15 drum core inductor for higher power applications requiring significant energy storage.

Inductance: 3.0uH - 120uH

Drum Core 4x6

Smallest drum core inductor in the range, for compact assemblies where a few hundred milliamps is the whole budget.

Inductance: 1.0uH - 10uH

Drum Core 5x7

5 x 7mm drum core inductor for general-purpose filtering on space-constrained boards.

Inductance: 2.2uH - 12.0uH

Drum Core 6x8

Compact 6x8 drum core inductor with shrink sleeve. Ideal for general purpose filtering and energy storage.

Inductance: 3.3uH - 13.0uH

Drum Core 8x10

8 x 10mm drum core inductor, a step up in current handling while staying through-hole.

Inductance: 3.3uH - 33.0uH

SMD Drum Core / Shielded

Shielded surface mount drum inductor, the core encapsulated in ferrite resin to close the magnetic path. Choose this over the unshielded part when the inductor sits near an antenna, an ADC or anything else that will pick up the field.

Inductance: 1.0uH - 1000uH

SMD Drum Core / Unshielded

Unshielded surface mount drum inductor. Leaving the core open lets it carry a higher peak current before saturating and costs less than a shielded part, which is the right trade wherever the surrounding circuitry tolerates the stray field.

Inductance: 1.0uH - 1000uH

EE1306 / 10P / Vertical

Compact EE1306 ferrite transformer with 10-pin vertical bobbin. Ideal for low-power switching applications, auxiliary power supplies, and LED drivers requiring high efficiency in a small footprint.

Core: EE13/6

EE1605 / 10P / Vertical

10-pin vertical EE1605 transformer offering maximum connectivity options in a minimal footprint. Suitable for multi-output power supplies.

Core: EE16/5

EE1605 / 6P / Horizontal

High-efficiency EE1605 ferrite transformer with 6-pin horizontal bobbin. Designed for compact switching power supplies and consumer electronics.

Core: EE16/5

EE1605 / 6P / Vertical

Vertical mount EE1605 transformer for space-constrained PCB layouts. Excellent thermal performance and magnetic shielding properties.

Core: EE16/5

EE1605 / 8P / Horizontal

Versatile EE1605 transformer with 8-pin horizontal configuration, allowing for multiple output windings and complex circuit designs.

Core: EE16/5

EE2005 / 10P / Horizontal

High-pin-count EE2005 horizontal transformer, perfect for complex control circuits and feedback loops.

Core: EE20/5

EE2005 / 10P / Vertical

Vertical EE2005 transformer with 10 pins, providing flexibility for auxiliary windings and shielding connections.

Core: EE20/5

EE2005 / 6P / Vertical

Robust EE2005 vertical transformer for medium-power applications. Features enhanced insulation and creepage distances.

Core: EE20/5

EE2005 / 8P / Horizontal

Horizontal EE2005 transformer optimized for low-profile power adapters and chargers.

Core: EE20/5

EE22 / 10P / Vertical

EE22 high-frequency ferrite transformer for compact SMPS up to about 15W. Suitable for auxiliary supplies, LED drivers and adapter designs that need a smaller footprint than EE25.

Power: up to ~15W

EE22 / 8P / Horizontal

Low-profile EE22 horizontal transformer for slim adapters and board-edge power stages where height is constrained.

Power: up to ~15W

EE2507 / 10P / Horizontal

Horizontal EE2507 transformer offering a balance of power handling and low profile for telecommunications equipment.

Core: EE25/7

EE2507 / 10P / Vertical

Vertical EE2507 transformer with 10 pins, suitable for offline switching power supplies with multiple outputs.

Core: EE25/7

EE2507 / 8P / Vertical

EE2507 vertical transformer designed for higher power density. Ideal for industrial control power supplies.

Core: EE25/7

EE3007 / 10P / Horizontal

Large EE3007 horizontal transformer for high-power applications. Excellent saturation characteristics.

Core: EE30/7

EE3007 / 12P / Vertical

Vertical EE3007 transformer with 12 pins, designed for complex industrial power supplies requiring isolation and multiple voltage rails.

Core: EE30/7

EE4215 / 16P / Vertical

Heavy-duty EE4215 vertical transformer. Capable of handling significant power levels for inverters and large power supplies.

Core: EE42/15

EE4220 / 12P / Vertical

EE4220 vertical transformer optimized for high-frequency switching and low core loss.

Core: EE42/20

EF12.6 / 9P / Horizontal

Compact EF12.6 horizontal transformer. Ideal for lighting ballasts and small power adapters.

Mounting: THT

EFD12 / 8P / Horizontal / SMD

Ultra-low profile EFD12 surface mount transformer. Perfect for high-density DC-DC converters.

Bobbin Material: LCP

EFD20 / 10P / Horizontal / SMD

Surface mount EFD20 transformer with 10 pins. Combines low profile with high throughput power capability.

Bobbin Material: LCP

EFD20 / 12P / Horizontal / SMD

High-connectivity EFD20 SMD transformer. Ideal for complex automotive and industrial electronics.

Bobbin Material: LCP

EFD20 / 8P / Horizontal

Low-profile EFD20 transformer for flat-panel displays and slim power supply units.

Mounting: THT

EFD25 / 10P / Horizontal

EFD25 horizontal transformer offering a flat design without compromising on power handling.

Mounting: THT

EFD25 / 12P / Horizontal / SMD

Robust EFD25 surface mount transformer for automated assembly and high-reliability applications.

Bobbin Material: LCP

EFD30 / 12P / Horizontal

Large EFD30 low-profile transformer. Delivers high power in a package suitable for 1U rack-mount equipment.

Mounting: THT

EI30 / 10P / Vertical

Standard EI30 vertical transformer. A cost-effective solution for general-purpose switching power supplies.

Mounting: THT

EI33 / 12P / Vertical

EI33 vertical transformer known for its ease of winding and consistent performance.

Mounting: THT

EI35 / 12P / Vertical

EI35 vertical transformer providing a good balance of core area and winding window for medium power.

Mounting: THT

EI40 / 12P / Vertical

Large EI40 vertical transformer for higher power applications requiring robust construction.

Mounting: THT

EP13 / 10P / Horizontal

EP13 transformer providing excellent magnetic shielding in a compact cube shape. Ideal for telecommunications.

Mounting: THT

EP13 / 10P / Horizontal / SMD

Surface mount EP13 transformer. Combines shielding with automated assembly compatibility.

Shielding: High

ETD29 / 14P / Horizontal

ETD29 horizontal transformer optimized for power throughput and thermal management.

Mounting: THT

ETD29 / 14P / Vertical

Vertical ETD29 transformer for designs requiring a smaller footprint with high power capability.

Mounting: THT

ETD49 / 20P / Horizontal

Massive ETD49 horizontal transformer for high-power industrial supplies and welding equipment.

Mounting: THT

Input Choke PQ 50/50

Output Choke Toroidal

PQ2620 / 12P / Vertical

PQ2620 transformer designed for high efficiency and minimal EMI. Ideal for modern switching power supplies.

Core: PQ26/20

PQ3220 / 12P / Vertical

PQ3220 transformer with optimized core geometry to maximize power throughput and minimize losses.

Core: PQ32/20

PQ3230 / 12P / Vertical

High-power PQ3230 transformer. The preferred choice for high-density, high-efficiency power conversion.

Core: PQ32/30

RM10 / 12P / Vertical

RM10 transformer offering high packing density and low magnetic leakage for sensitive audio and instrumentation circuits.

Mounting: THT

RM8 / 12P / Vertical

RM8 transformer featuring a space-saving square footprint and magnetic shielding clips.

Mounting: THT

Single Phase Ferrite Transformer / Custom

Custom single-phase ferrite transformer wound to your turns ratio, isolation and mechanical envelope — sample before bulk.

Core: EE / PQ / RM / ETD to specification

Transformer PQ65/65

UU9.8 LFC / 5 VA

Small UU9.8 line-frequency / low-power ferrite transformer around 5 VA for control supplies and isolation where EE cores are oversized.

Power: ~5 VA

Copper Toroidal Line Filter

Copper-wound toroidal line filter for AC input EMI. Available as choke-only or with X/Y capacitors as a complete filter block.

Inductance: 100 µH – 10 mH class

Custom Line Filter

Built to your measured emissions profile. Send the scan that failed and the current rating, and we design the filter around the frequencies that actually need attenuating rather than a generic curve.

Rated Current: To Specification

Line Filter 10A

10A line filter for drives, welding supplies and larger industrial equipment, wound on a core sized so the winding does not saturate at rated line current.

Common Mode Inductance: 1.5mH - 10mH

Line Filter 1A

Single-phase AC line filter rated 1A, for adapters, smart meters and small instrumentation. Attenuates conducted noise in both directions, so it also stops the supply polluting the mains.

Common Mode Inductance: 10mH - 33mH

Line Filter 3A

3A single-phase line filter for LED lighting, control panels and bench equipment. The usual first fix when a supply fails conducted emissions in the low megahertz.

Common Mode Inductance: 5mH - 22mH

Line Filter 6A

6A line filter for industrial supplies and motor controllers. Available single or dual stage where a single stage leaves too little margin.

Common Mode Inductance: 3mH - 15mH

Line Filter Choke / 1 mH / 0.95 A

Common-mode line filter choke around 1 mH at 0.95 A for compact EMI stages. Wound and tested in-house.

Inductance: 1 mH class

Toroidal Line Filter / 48 µH / 2 A

Compact toroidal line-filter inductor around 48 µH at 2 A for differential / hybrid filtering stages.

Inductance: 48 µH class

Custom Power Inductor

Wound to your inductance, saturation current and DC resistance targets on a ferrite or iron powder core. Tell us the converter topology, switching frequency and ripple budget and we will size the core and the gap around them.

Inductance: To Specification

Radial Power Inductor / 150 µH / 4.6 A

Through-hole radial power inductor around 150 µH at 4.6 A with low DCR for DC-DC and output filtering.

DCR: ~69 mΩ class

Radial Power Inductor / 220 µH / 330 mA

Through-hole radial power inductor around 220 µH at 330 mA for compact filtering and low-current converter stages.

DCR: ~1.1 Ω class

Radial Power Inductor 0608

Through-hole radial power inductor in a 6 x 8mm body, epoxy coated. Suited to boards that are wave soldered or that need the mechanical robustness of leaded parts.

Inductance: 1.0uH - 1000uH

Radial Power Inductor 0810

8 x 10mm radial power inductor for general-purpose DC filtering and energy storage on through-hole assemblies.

Inductance: 1.0uH - 1000uH

Radial Power Inductor 1012

10 x 12mm radial power inductor, the largest standard leaded body, for higher-current buck and boost stages.

Inductance: 1.0uH - 1000uH

SMD Power Inductor / Flat Wire

Surface mount power inductor wound in flat copper on edge. The rectangular cross-section fills the winding window far better than round wire, which is where the low DC resistance and high current rating come from.

Inductance: up to 50uH

SMD Power Inductor CD104

10.0 x 10.0mm SMD power inductor, the largest of the standard drum footprints. Used on main rails and in automotive DC-DC stages.

Inductance: 3.3uH - 1000uH

SMD Power Inductor CD32

3.2 x 3.2mm SMD power inductor for point-of-load regulators and portable devices. Open drum construction, so keep it clear of small-signal traces — the shielded SMD drum core is the alternative where that matters.

Inductance: 1.0uH - 470uH

SMD Power Inductor CD43

4.8 x 4.3mm SMD power inductor on an open drum core. The common workhorse size for buck stages in the one to two amp range.

Inductance: 1.0uH - 1000uH

SMD Power Inductor CD54

5.4 x 5.4mm SMD power inductor for set-top boxes, networking gear and instrumentation rails.

Inductance: 1.5uH - 1000uH

SMD Power Inductor CD75

7.5 x 7.5mm SMD power inductor for higher-current rails where a CD54 would run hot.

Inductance: 2.2uH - 1000uH

Rod Core 3x10

3 x 10mm rod core choke for signal-line filtering and small supplies, where a few microhenries in series is all that is needed.

Inductance: 0.5uH - 10uH

Rod Core 4x10

4 x 10mm rod core choke for general-purpose line conditioning on compact boards.

Inductance: 1.0uH - 22uH

Rod Core 5x12

5 x 12mm rod core choke, the most widely used size in the range. A cost-effective series element for supply and output filtering.

Inductance: 1.0uH - 33uH

Rod Core 5x20

5 x 20mm rod core choke. The longer rod raises inductance without increasing diameter, useful where the footprint is fixed but the filtering is not enough.

Inductance: 3.3uH - 68uH

Rod Core 6x20

6 x 20mm rod core choke for higher-current supply lines in industrial and lighting equipment.

Inductance: 3.3uH - 100uH

Rod Core 8x20

8 x 20mm rod core choke, the largest standard size. Takes heavier wire for line-side filtering where the current would saturate a smaller rod.

Inductance: 4.7uH - 150uH

Custom Solenoid Coil

Wound to your bore, stack height, resistance and pull force. Send the valve or actuator drawing and the duty cycle; we work back from the force curve to the turns, wire gauge and thermal class.

Rated Voltage: To Specification

Encapsulated Solenoid Coil / IP67

Fully encapsulated coil for washdown, agricultural and outdoor duty. The winding is potted solid, so there is no air path for moisture to condense in and no void for vibration to work against.

Rated Voltage: 12V / 24V DC

Laboratory Induction Coil Set

Primary and secondary coil pair with a removable soft iron core, for teaching Faraday's law and Lenz's law. Sliding the core changes the coupling, which is the whole demonstration — students see induced EMF rise and fall as flux linkage changes.

Core: Soft Iron, 85mm

Laboratory Solenoid / 500 Turn

Search coil wound to a counted 500 turns over a 50mm length, two layers, for magnetic field measurement and induction experiments. The turn count is held exactly because the calculation students perform depends on it.

Turns: 500 (counted)

Proportional Solenoid Coil / 12V DC

Stepless 12V DC coil for proportional valves. Force tracks the drive current instead of snapping between two states, so flow follows the command signal continuously. Wound to a tight resistance tolerance, because on a proportional valve a resistance error is a calibration error.

Control: PWM Current Controlled

Proportional Solenoid Coil / 24V DC

24V DC proportional coil for infinitely variable flow and pressure control. Used where a machine has to modulate rather than switch — pump displacement, closed-loop pressure, coordinated axis motion.

Control: PWM Current Controlled

Solenoid Coil / Flying Lead

Coil terminated in flying leads rather than a connector body, for OEM harnesses that are crimped and sealed at assembly. Lead length and gauge to your drawing.

Rated Voltage: 12V / 24V DC

Switching Solenoid Coil / 110V AC

110V AC switching coil for fixed plant where the valve is driven straight from the control transformer rather than through a DC supply.

Rated Voltage: 110V AC 50/60Hz

Switching Solenoid Coil / 12V DC

On/off actuation coil for 12V DC directional control valves. Energising it pulls the armature to its working position; a return spring restores it when the current drops. The workhorse of mobile hydraulics.

Duty Cycle: 100% ED

Switching Solenoid Coil / 230V AC

230V AC switching coil for panel-fed machinery and process equipment, wound and impregnated for continuous duty at line voltage.

Rated Voltage: 230V AC 50/60Hz

Switching Solenoid Coil / 24V DC

24V DC switching coil for industrial and mobile valve blocks. The most widely specified rating in machine hydraulics, and the first coil most maintenance stores hold as a spare.

Duty Cycle: 100% ED

Custom Toroidal Power Inductor

Fully custom toroidal power inductor — send L, ISat, DCR and outline. Sample before bulk with full electrical test.

Core: Powder / ferrite toroid

High Current Toroidal Inductor

Custom high-current toroidal inductor wound for your saturation current, temperature rise and footprint — prototype to production.

Inductance: To specification

SMD Toroidal Power Inductor / 8.4 µH / 10.4 A

Low-inductance high-current SMD toroidal power inductor (~8.4 µH, ~10 A) for dense POL and converter boards.

Rated Current: 10.4 A class

T33 Copper Toroidal Inductor

T33-size copper toroidal inductor for power filtering and energy storage. Turns and wire gauge to your L and ISat targets.

Mounting: THT / chassis

Toroidal Power Choke / 1220 µH / 12.3 A

High-energy toroidal power choke around 1.22 mH at 12 A class for solar, UPS and high-current converters.

Rated Current: 12.3 A class

Toroidal Power Inductor / 100 µH / 2 A

100 µH class toroidal power inductor rated around 2 A — a common radial energy-storage footprint for converters and filters.

Tolerance: ±20% class

Toroidal Power Inductor / 100 µH / 6 A

100 µH class toroidal power inductor rated around 6 A for buck/boost energy storage and output filtering.

Mounting: THT radial