Inductors CMC, DMC, PFC

Inductances CMC, DMC, PFC Suitable for suppression of electromagnetic interference on switching converters and power supplies. Made on ferrite cores, iron powder, Molypermalloy, Sendust, Megaflux, High Flux, etc. in horizontal, vertical version Made on E, C and Toroidali geometries Enamelled copper wire windings, Litz, enamelled copper plate. Insulation between windings up to 2KV...

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Power chokes and output inductances

Inductances suitable for use on Inverter, UPS, rectifiers, battery chargers Made on ferrites, nanocrystalline, amorphous, Fe-Si, iron powder, molypermalloy, sendust, megaflux, High flux, etc. Construction with ferrite core type E-RM-Toroid, DRUM CORE, AIR COIL, etc. Enamelled copper wire windings, Litz, enamelled copper flat. The windings can be linear, on toroid, flat wire on edge.

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High frequency transformers

Elmi manufactures high frequency transformers in all possible combinations.

  • Frequency:
    • working from 20 to 300 kHz.
    • Switching frequency and resonance frequency as per requirement.
  • Cores:
    • ferrite cores
    • any requested shape available on the market: E, ETD, toroid, etc...
  • Shape-typology:
    • in version horizontal, vertical, PTH or SMD.
  • Option for wire:
    • Single or multi-strand enameled wire,
    • Litz wire,
    • Wire in double or triple TIW insulation,
    • Copper flat wire,
    • Insulated copper flat wire,
    • Grade as per IEC60317.
  • Class:
    • Components can be provided in class F or H,
    • with UL certificates on request.
  • Winding:
    • can be linear, on toroid.
    • Creepage and clearing distance primary-secondary as per standards or request,
    • Dielectric insulation between windings: as per requirement.
  • Supports/bobbins:
    • Availability of supports suitable for respecting air gaps and standards required by safety regulations.
    • Bobbin can be provided in all suitable standard to respect standards. Best catalog bobbins, from Europe or China.
  • Applicable standards on request:
    • Flammability: UL94V0, V1or HB,
    • Soldering Compliance according IPC610,
    • Packaging ESD:  as per IEC 61340-5,
    • Storage temperature and HR: usually -40°c +85°c @ 95%,
    • Ionic contamination as per IPC650-2.3.25.
  • If quantity does request and allows it, we can let them produce in China via our partner company Traftor and manage final quality checking and logistic accordingly.

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Low frequency transformers

Single-phase transformers for power supply with working frequency 20 ÷ 400Hz built with double insulation. Available with impregnated varnish and / or incorporated in a container. Made on EI, EE or Toroidal geometries in Fe-Si laminations Versions on PCB or with mechanical support on request. Possibility to customize power, voltages and terminations.

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SMD Transformers and Inductors

Transformers, inductances, current transformers for small powers on flyback converters, forward, push-pulland other converter topologies, suitable to assembly with pick and place. Made on E, EFD and Toroid ferrites even on supports suitable for respecting air and surface distances required by safety regulations. Possibility to supply components on reel as requested by the customer.

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