Systems, Subsystems & Solutions

Inductors / Transformers / Magnetics

API produces a broad range of passive magnetic including transformers, inductors, chokes, coils and passive filters. These magnetic span from a 60 Hz plug-in to 400 Hz for aircraft and shipboard – all the way up to 100 Khz for switching power supplies and even RF for specialized military applications.

The company also manufacturers audio transformers (up to RF) which are designed to work in various broadband, telecom, datacom, and other signaling applications.

Inductors

API is a prime contractor of precision, tunable and tapped inductors.  These inductors include Miniature Drum Core units, Input/Output differential mode filters and Common Mode filter inductors.  API can provide customized versions of inductors where stability over a wide temperature range is of utmost importance, using specialized automatic temperature cycling equipment.

API’s Inductors Include:  Adjustable Inductors, Torodial (Input/Output Filter) Inductors, Switching Inductors, Common Mode Inductors, DC Reactors, Power Inductors, Filter Inductors, Chip Inductors, Miniature Drum Core Inductors, Multilayer Ceramic Chip Inductors, Thin Film Ceramic Chip Inductors, Wire Wound Ceramic Chip Inductor, and Coil Suppressor Assembly.

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TLA-0839 Series Hybrid Transformer

TLA 0839 is designed to be used in a “Single Coil” hybrid configuration.

Applications: Interfacing the Central Office to 900W 2-wire subscriber loop in a CODEC system where DC loop feed is required.

Features: 
  • Low loss.
  • High Return loss.
  • DC capability.

TLA-0814 Series Line Matching Transformer

TLA-0814 is a 1 : 1 line matching transformer.

Applications: Interfacing of Telecommunications equipment to telephone lines where DC loop current handling capability is required.

Features: 
  • Low cost.
  • Conforming to FCC part 68 and CS03 regulations.
  • Split primary and secondary windings.
  • DC capability.

CBP-1537 Series Cylindrical Coil Forms

High current R.F. chokes on cylindrical coil forms with axial leads.

Features: 
  • 1537 is ideally suited for filtering in Switch Mode Power Supplies.
  • Overall coil length, 1.25”.
  • Lead length, 1.5” long.
  • Shrink sleeve as outer cover for mechanical protection and electrical insulation.
  • Optimum frequency range, 10 KHZ to 2 MHz.
  • Other values are available upon request.

CBP-1536 Series Cylindrical Coil Forms

Heavy duty hash chokes on cylindrical coil forms with axial leads.

Features: 
  • Powered iron cores.
  • High inductance and high current.  
  • Varnish impregnated for moisture protection.
  • Can be supplied with proctective sleeving or encapsulant.
  • Lead length, 1.5”.
  • Dual chokes are also available.
  • Other values are available upon request.

CBP-1531 and CBP-1532 Series Cylindrical Coil Forms

R.F. Chokes on cylindrical coil forms with axial leads.

Features: 
  • 1531 is wound on a 0.75” long phenolic coilform.
  • 1532 is wound on a 0.87” long powdered iron core.
  • Single layer windings for lowest winding capacitance.
  • Impregnated with varnish for moisture protection.
  • Other values are available upon request
  • Can be supplied with protective sleeving or encapsulant.
  • Lead length, 1.5”.
  • Lead wire gauge, #20.

CBP-1530 Series Cylindrical Coil Forms

Sub-miniture R.F. Chokes on cylindrical coil forms with axial leads. The CBP1530 series is ideally suited for network and filter designs, delay lines and computer applications.

Features: 
  • Impregnated with varnish for moisture protection.
  • Other values are available upon request.
  • Can be supplied with protective sleeving or encapsulant.
  • Lead length, 1.5”.
  • Lead wire gauge, #20 AWG.

CPB-1256 Series Drum Core Inductor

The CBP1256 series Inductors are wound on “Drum” style ferrite cores and are ideal for use as Input/Output filter Inductors in Switch Mode Power Supplies.

Other applications include:
Line Filters, Speaker Crossover Networks, SCR and Triac Controls etc.

Features: 
  • High DC levels.
  • Compact size.
  • Low loss Ferrite material.
  • Cost effective.
  • Available with heat shrink vinyl cover.

CPB-1255 Series Drum Core Inductor

The CBP1255 series Inductors are wound on “Drum” style ferrite cores and are ideal for use as Input/Output filter Inductors in Switch Mode Power Supplies.

Other applications include:
Line Filters, Speaker Crossover Networks, SCR and Triac Controls etc.

Features: 
  • High DC levels.
  • Compact size.
  • Low loss Ferrite material.
  • Cost effective.
  • Available with heat shrink vinyl cover.
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