Power Inductors & Chokes

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AlfaMag offers an extensive range of inductors and chokes in many different package sizes and shapes, both in surface mount and through-hole types. Applications include output inductors in SMPS filters, DC/DC converters, energy storage, differential mode and common mode filtering. Custom designs are available.

AM Series SMT Power Inductors

FEATURES

Designed for low profile and high performance
High energy storage and low resistance
Ideal for DC-DC converter applications, such as pagers, notebook computers, PDAs, etc.

DJ Series Low Cost Linear Storage Chokes

DJ Series Storage Chokes offer high storage capacity in a compact, low cost design. Used primarily in switch mode power supplies where low losses are essential at high pulse frequencies.

DJ Series Low Cost Linear Storage Chokes

Features

High storage capacity (to 5000μJoules) in compact size
Low losses at high pulse frequencies
Operating frequency to 100 kHz
Low leakage
Small mounting area due to vertical design
Competitive pricing due to high volume production
Manufactured in an ISO 9001:2008 TS-15949:2002 and ISO-14001:2004 certified facilities
Fully RoHS compliant

Electrical Specifications at 25°C

Test frequency: Inductance measured @ 10kHzand 10mV Test voltage between windings: 500Vrms
Operating temperature: -40°C to +125°C
Climatic category: IEC68-1 40/125/56

DP Series Low Cost Power Inductors

DP Series Power Inductors provide an excellent, low cost alternative to conventional chokes or inductors. Used in EMI filtering and energy storage, these compact, low radiation inductors are extremely effective in controlling AC output ripple of Switch Mode Power Supplies.

DP Series Low Cost Power Inductors

Features

Broad range of inductance values and current ratings
Low cost, no radiation design
Hot Solder, pre-tinned leads for easy PC board mounting
Operating frequency to 100kHz
Competitive pricing due to high volume production
Manufactured in ISO-9001:2000, TS-16949:2002 and ISO-14001:2004 certified facility
Fully RoHS compliant

Electrical Specifications @ 25°C

Test frequency: Inductance measured @ 10kHz/10mV Test voltage between windings: 500Vrms
Operating temperature: -40°C to +125°C
Climatic category: IEC68-1 40/125/56

Applications

Switching Power Supplies
EMI/RFI filtering
Output Chokes

LC Series Miniature Low Cost Toroidal Inductors

LC Series surface mount toroidal inductors are designed for use in applications where energy storage is required for maintenance of a highly stable inductance when a rapid change in load current occurs. These inductors are excellent for filtering high frequency signals while supporting a substantial DC current as well as for AC ripple, switch mode power supplies and for use with DC-DC Converters.

LC Series Miniature Low Cost Toroidal Inductors

Features

Operating frequency to 1 MHz
High energy storage with minimum saturation
High stability from no load to full load
Pick and place compatible
Designed as 1:1 Coupled Inductor (Series or Parallel) or as 1:1 Isolation Transformer
Meets lead free reflow level J-STD-020C
Fully RoHS compliant

Electrical Specifications at 25°C

Test frequency: Inductance measured @ 10kHz/10mV Test Voltage between windings: 500Vrms
Operating Temperature: -40°C to +125°C
Climatic category: IEC68-1 40/125/56

Applications

DC-DC Converters Common Mode Filter Computer Note Books Pulse Modulation Switching Regulators: Step-up, Step-down, Inverting or dual output Filtering Battery Powered Equipment

LCP Series Miniature Low Cost Toroidal Inductors

LCP Series surface mount toroidal inductors are designed for use in applications where energy storage is required for maintenance of a highly stable inductance when a rapid change in load current occurs. These inductors are excellent for filtering high frequency signals while supporting a substantial DC current as well as for AC ripple, switch mode power supplies and for use with DC-DC Converters.

LCP Series Miniature Low Cost Toroidal Transformers

Features

Operating frequency to 1 MHz
High energy storage with minimum saturation
High stability from no load to full load
Designed as 1:1 Coupled Inductor (Series or Parallel) or as 1:1 Isolation Transformer
Meets lead free reflow level J-STD-020C
Fully RoHS compliant

Applications

DC-DC Converters Common Mode Filter Computer Note Books Pulse Modulation Switching Regulators: Step-up, Step-down, Inverting or dual output Filtering Battery Powered Equipment

Electrical Specifications @ 25°C

Test voltage between windings: 500 Vrms
Operating temperature range: -40°C to +125°C
Climatic Category: IEC68-1 40/125/56
Test frequency: Inductance measured @ 10kHz/10mV

SA Series High Efficiency - High Stability Storage Chokes

SA Series storage chokes have been designed with Febased amorphous alloy which provides high flux density and low core loss which is ideal for optimizing choke design. Providing exceptional efficiency and field modulation when used as loading coils for interim energy storage with SMPS, the use of amorphous cores gives a highly stable inductance over a wide DC bias current range and high "Q" with operating frequencies to 500kHz.

SA Series High Efficiency - High Stability Storage Chokes

Features

Fe-based amorphous alloy cores
Operating frequencies to 500kHz
Small size and high "Q"
Highly stable inductance with changing DC bias current
Low temperature rise
Fully encapsulated styles available meeting class GFK (-40°C to +125°C, humidity class F) per DIN 40040
Fully RoHS compliant

Electrical Specifications @ 25°C

Test frequency: Inductance measured@ 10kHz / 10mV
Test voltage between windings: 500Vrms
Operating temperature: -40°C to +125°C
Climatic category: IEC68-1 40/125/56

SC Series Low Profile Power Inductors SMD & THT

Features

Operating frequency to 1 MHz
High energy storage with minimum saturation
High stability from no load to full load
Pick and place compatible
Designed as 1:1 Coupled Inductor (Series or Parallel) or as 1:1 Isolation Transformer
Meets lead free reflow level J-STD-020C
Fully RoHS compliant

Electrical Specifications at 25°C

Test frequency: Inductance measured @ 10kHz/10mV
Test Voltage between windings: 500Vrms
Operating Temperature: -40°C to +130°C
Climatic category: IEC68-1 40/130/56

SD Series Storage Chokes

SD Series storage chokes provide excellent efficiency and field modulation when used as loading coils for interim energy storage with switch mode power supplies. The use of MPP cores allows compact size, a highly stable inductance over a wide bias current range and high "Q" with operating frequencies to 200kHz.

SD Series High Efficiency Storage Chokes

Features

Operating frequency to 200kHz
Small size and high "Q"
Highly stable inductance with changing bias current
Fully encapsulated styles available meeting class GFK (-40°C to +125°C, humidity class F) per DIN 40040.
Fully RoHS compliant

Electrical Specifications @ 25°C

Test frequency: Inductance measured@ 10kHz / 10mV
Test voltage between windings: 500Vrms
Operating temperature: -40°C to +125°C
Climatic category: IEC68-1 40/125/56

SL Series Toroidal Power Inductors

Features

Operating frequency to 1 MHz
High energy storage with minimum saturation
High stability from no load to full load
Available in both SMD and TH versions
Manufactured in ISO-9001:2000, TS-16949:2002 and ISO-14001:2004 certified facility
Meets lead free reflow level J-STD-020C
Fully RoHS compliant

Electrical Specifications @ 25°C

Test voltage between windings: 500 Vrms
Operating temperature range: -40°C to +130°C
Climatic Category: IEC68-1 40/125/56
Test frequency: Inductance measured @ 10kHz / 10mV

Contact our qualified experts today when you're ready to place an order, or dial 1-800-413-6693 to receive a detailed quote for your high frequency magnetic components.