High Current Shielded 220 Power Inductor Low DCR Stable For DC Converters

The 220 marking is commonly used to represent a nominal inductance of 22 microhenries according to the three digit inductor coding system. Marking conventions may vary so the actual inductance must be confirmed through the approved drawing and electrical specification.

The pictured product is a compact shielded through hole power inductor with two radial pins. It should not be described as an EE40 transformer even though an unrelated EE40 caption appears in the image.

All values below are typical engineering inquiry references rather than guaranteed ratings. Final inductance current DCR saturation performance temperature rise dimensions and frequency characteristics depend on the approved customer requirements.

The 220 shielded through hole power inductor is designed for energy storage current smoothing ripple reduction and power filtering in switching power supplies and DC DC converters.

The 220 marking commonly identifies a nominal inductance of 22 microhenries. This inductance value is widely used in buck boost and buck boost conversion where the final component selection depends on switching frequency load current ripple target and saturation margin.

The enclosed magnetic structure helps reduce external magnetic flux compared with an unshielded open winding inductor. Its two radial pins provide secure through hole PCB mounting and can be customized for pin diameter spacing and length.

Chipsen can customize inductance rated current saturation current DCR dimensions magnetic material pins temperature range protective treatment marking and packaging according to the customer circuit.

• Nominal 22 microhenry configuration commonly represented by 220
• Compact through hole power inductor construction
• Shielded magnetic structure
• High current winding options
• Low DC resistance design available
• Controlled saturation performance
• Stable inductance under specified operating conditions
• Reduced external magnetic flux compared with open winding designs
• Suitable for high frequency switching converters
• Mechanically secure PCB mounting
• Custom pin diameter spacing and length
• Custom inductance current and dimensions
• Optional protective impregnation or encapsulation
• Suitable for industrial power electronic equipment
• Drawing based and sample based development

• Buck DC DC converters
• Boost DC DC converters
• Buck boost converters
• Industrial automation power supplies
• Telecom power equipment
• Battery charging systems
• Energy storage controllers
• Solar inverter auxiliary power
• Motor control equipment
• LED driver circuits
• Automotive auxiliary electronics
• Security and building control systems
• Medical and measurement equipment
• Commercial appliances
• Input power filtering
• Output ripple filtering
• Current smoothing circuits
• Energy storage circuits

Chipsen establishes the manufacturing and inspection plan according to the approved electrical specification mechanical drawing circuit conditions and customer quality requirements.

Incoming magnetic materials copper wire pins insulating materials and protective compounds are inspected before production. Winding core assembly pin processing treatment testing marking and packaging are controlled through documented procedures.

Final performance must be verified in the customer circuit. Current capability depends on PCB copper area airflow enclosure temperature and neighboring heat sources.

Chipsen specializes in the development and manufacturing of custom magnetic components for industrial equipment power electronics automation systems and electrical control applications.

The product range includes high-frequency transformers low-frequency transformers planar transformers power inductors high-current inductors toroidal inductors common-mode chokes EMI filter magnetics wireless charging coils custom coils and non-standard magnetic components.

Chipsen supports drawing-based development sample-based replacement development and application-requirement design. Engineering discussions can cover low DCR leakage inductance EMI insulation temperature rise winding structure footprint pinout terminals protection devices and production-testing requirements.

The objective is to provide evaluation-ready samples and a clearly defined specification before production approval.

• Customized inductance current DCR and saturation performance
• Engineering support based on actual converter operating conditions
• Drawing based and sample based replacement development
• Shielded and unshielded power inductor options
• Low DCR conductor and winding optimization
• Custom body dimensions pin diameter and PCB spacing
• Magnetic material selection according to frequency and temperature
• Optional impregnation resin and environmental protection
• OEM and ODM customization
• MOQ from 1000 pieces for eligible projects
• Fast technical evaluation and sample support
• Five year warranty with extended warranty evaluation for special industries
• Extended warranty is subject to application validation and written agreement
• Electrical and mechanical testing based on approved specifications
• Material and production traceability according to project requirements
• Clear drawing and specification approval before mass production

What does the 220 marking mean?
The 220 marking commonly represents 22 microhenries. The first two digits are significant numbers and the final digit indicates the number of zeros. The actual inductance must still be confirmed through the approved specification.

Is this an EE40 transformer?
No. The pictured component is a two terminal through hole power inductor. The EE40 transformer caption in the promotional image is unrelated and should be removed.

Is every 220 inductor interchangeable?
No. Components with the same marking may have different rated current saturation current DCR dimensions pin spacing magnetic materials temperature ratings and frequency characteristics.

What information is required for customization?
Please provide the target inductance tolerance continuous current peak current permitted inductance drop maximum DCR switching frequency ripple current operating temperature dimensions PCB hole size pin spacing and annual demand.

What is the difference between rated current and saturation current?
Rated current is commonly limited by temperature rise during continuous operation. Saturation current is the current at which inductance decreases by an agreed percentage. Both limits must be evaluated.

Can the DCR be reduced?
Yes. Conductor size winding structure turn count and terminal design can be optimized. Lower DCR may require a larger body or a different balance between inductance and current capacity.

Is this a magnetically shielded inductor?
The enclosed construction is designed to reduce external magnetic flux compared with an open winding structure. Final EMI performance should be verified on the customer PCB.

Can the pin spacing be customized?
Yes. Pin diameter spacing length and terminal treatment can be customized according to the customer PCB drawing.

Can the product operate at high frequency?
Yes. The suitable operating frequency depends on magnetic material core loss winding loss current waveform and temperature rise. The actual switching frequency must be provided during development.

Can this product be used in automotive electronics?
An application specific version can be evaluated for automotive use. Temperature vibration thermal cycling traceability and qualification requirements must be defined before development.

Can Chipsen develop a replacement from a sample?
Yes. The sample can be evaluated for dimensions inductance DCR pins and construction. Actual circuit voltage current frequency ripple and thermal conditions are also required.

What is the MOQ?
The promotional image indicates an MOQ of 1000 pieces. Final MOQ depends on magnetic material conductor terminals customization complexity and packaging requirements.

Are the specifications on this page guaranteed?
No. They are typical engineering and purchasing references. Only values confirmed in the approved drawing product specification and validation documents are guaranteed for the final product.