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Premo Inductive – Passive Components

Premo InductiveThe Premo Group (Grupo Premo, S.A.) is a Spanish holding company consisting of five 5 different business units which develop, manufacture and sell products and solutions in the inductive component business.

Headquarters are located in Barcelona. They have R&D facilities and factories in Málaga (on the Costa del Sol, Spain), Tanger (Marocco), Wuxi (China, near Shanghai), as well as in Barcelona(Spain).

Products:

  • EMC Filters
  • Inductive Components
  • PLC Products
  • RFID Components
  • RFID Systems
Inductive Components
  • Chokes
  • Custom designed
  • General Application IC´s
  • Transformers

Applications:

 

Electromagnetic compatibility
Premo Inductive - Passive Parts and Components IBS Electronics Global Electronics Components Distributor The electromagnetic compatibility is the ability of an electronic device to function satisfactorily in its electromagnetic environment (Inmunity or Susceptibility) without disturbing other equipments (Emission). An interference source generates two kind of electromagnetic interferences: conducted emission, electrical noise through the lines, or radiated emission, generation of electromagnetic fields. At high frequencies, characterized by the fact that the equipment dimensions are in the order of the magnitud of the wavelength associated to this frequency, the interference energy is mainly radiated.

EMC Components

At lower frequency ranges, the EMC components are used to reduce conducted electromagnetic interferences, to assure the good devices working and to comply the legal regulations. These components can be installed in the interference source or in the disturbed device. In order to choose the suitable interference suppression component, the way in which the interference is propagated needs to be known: The electrical noise which comes in one line wire and returns to the noise source through the other line wire is differential noise (symmetrical interference). This mode of interference occurs mainly at low frequencies (up to several hundred of kHz). Some types of capacitors (X capacitors) and single chokes are suitable for suppressing the differencial mode interferences. Due to the mechanical configuration and parasitic capacitances, a current with the ground circuit can be created. These parasitic currents can flow through the power line cables and return through the ground cable. This kind of interference is the common mode noise (asymmetrical interference). As the effects of parasitic capacitance and inductance between the conductors increase with frequency, this interference occurs at high frequencies (starting approximately from 1MHz). When the common mode interferences have to be reduced, the common mode chokes and Y capacitors are used.

Common Mode Chokes


Common Mode Chokes

The closed core topology and the windings distribution make these components especially suitable for the common mode noise suppression. The continuos path of the toroids maximizes the magnetic coupling between windings thereby minimizing the leakage inductance. Also, two windings are connected in such a way that the magnetic flux induced by the operating current flowing in one winding is opposite to the flux induced by the current flowing through the another one, that is to say, both fluxes cancel each other. Therefore, the problem of core saturation is solved. This allows to use high permeability cores so that high inductance values are obtained. Premo has a wide range of CMCs for their use in different applications. The chokes are based in a toroidal core and they are mounted in boxes or bases facilitating their direct assembly in the printed circuit board. The magnetic core material is either high permeability ferrite (PC, PM, SC) or nanocrystalline (HC). We can offer different formats and sizes in order to cover all the necessities in the electromagnetic compatibility field.

Characteristics:

 

Specifications:

 

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Product List:

Part Number Product Name Qty Price (US$)  
P3189 ETAL P3189 Telecom Transformer v.22bis 25,701 8.3600
P2824 ETAL P2824 Telecom Transformer 0 4.0000
P3801 ETAL P3801 Telecom Transformer V.34+/V90 5 4.8000
P3181TR ETAL P3181TR Low Distortion Telecom Line Matching Transformer ( 1 : 1.1 ) 1,545 9.3200
P2781 ETAL P2781 Telecom Transformer v.22bis / v.32bis 64 7.1400
P1165 ETAL P1165 Line Matching Telecom Transformer v.34 858 9.1900
P3000 ETAL P3000 Telecom Transformer v.90 / v.92 5 7.1400
P3181 ETAL P3181 Telecom / Pick-Off Transformer v.90 / v.92 15 7.4100
P3191 ETAL P3191 Telecom Transformer v.22bis / v.32bis SMT RoHS 2 5.0000
P3324 ETAL P3324 Isolation Transformer, Line Matching, 100 ľA 0 6.7300
100smd ETAL 100SMD Line Matching Transformer 5 9.1000
9035 ETAL 9035 Transformer 0 5.1100
P2769 ETAL P2769 Pick-Off / Telecom Transformer 336 8.2500
9856 ETAL 9856 Transformer 5 8.2500
9025 ETAL 9025 Transformer 0 7.1000
P2152 ETAL P2152 Pick-Off / Telecom Transformer 5 8.2500
9004 ETAL 9004 Transformer 0 7.1000
300SMD ETAL 300SMD Transformer 0 7.1000
320SMD ETAL 320SMD Transformer 0 7.1000
P9003 ETAL P9003 Pick-Off / Telecom Transformer v.34 5 7.1000
P1727 ETAL P1727 Telecom / Pick-Off Transformer 5 6.8000
P7614-0603-6R8M ETAL P7614-0603-6R8M Inductor 0 7.0000
P7614-0603-8R2M ETAL P7614-0603-8R2M Power Inductor 50 7.0000
P2782 ETAL P2782 Pick-Off / Telecom Transformer 0 6.8300
P2782TR ETAL P2782TR Telecom / Pick-Off Transformer v.22bis / v.32bis 49 6.5000
P3800 ETAL P3800 Telecom Transformer v.22bis / v.34bis 3 5.2300
P3900 ETAL P3900 Telecom ADSL Transformer 0 0.0000
P3410 ETAL P3410 Telecom Transformer v.90bis / v.92bis RoHS 0 5.2300
P5056 ETAL P5056 Transformer 5,005 3.9600
P5122 ETAL P5122 Transformer 5 3.9700
P7636-1205-R33M ETAL P7636-1205-R33M Inductor 5 4.9700
P7636-1205-R56M ETAL P7636-1205-R56M Inductor 5 4.9700
P7636-1205-R47M ETAL P76361205R47M Inductor 5 3.9700
P3065 ETAL P3065 Low Profile Line Matching Telecom Transformer v.34 25 8.8900
P2001 ETAL P2001 Telecom / Pick-Off Transformer v.34bis 765 9.1000
P2781TR ETAL P2781TR Telecom Transformer v.22bis / v.32bis 500 7.3600
P3188TR ETAL P3188TR Matching Telecom Transformer 0 7.3600
P3356 ETAL P3356 Telecom Transformer v.90bis / v.92bis 0 7.6900
P1200 ETAL P1200 Line Matching Transformer 2,678 7.1000
P3188 ETAL P3188 Telecom Transformer v.22bis / v.32bis 104 7.3600
P5011 ETAL P5011 Transformer 5 4.4100
P2769T/R ETAL P2769TR MICROPROFILE PICK-OFF TRANSFORMER 1,000 8.2500
P5230 ETAL P5230 Transformer 60 1.2500
P5231 ETAL P5231 TRANSFORMER SMD V.22BIS RoHS 66 7.0000
P5233 P5233 ETAL TRANSFORMER 5 3.7000
P8002 ETAL 8002 Pick-Off / Telecom Transformer Bulk Through Hole 5 7.0000
P2602 ETAL P2602 Telecom / Pick-Off Transformer FOR V.32bis / V.22bis 911 7.8900
P3190 ETAL P3190 MICROPROFILE PICK-OFF TRANSFORMER 1,005 6.1500
P3432TR ETAL P3432 TR LINE MATCHING Telecom Transformer 0 7.1200
P5100 ETAL P5100 LINE MATCHING TRANSFORMER 0 8.0000
P3191TR ETAL P3191TR Telecom Transformer V.22 V.34 RoHS 1,500 6.2200
100SMDTR ETAL 100SMD TR Line Matching Transformer 250 5.0000
P3081 ETAL P3081 Telecom Transformer 0 7.2500
P7646-0603-3R3 P7646-0603-3R3 ETAL POWER INDUCTOR 3.3uH RoHS 0 0.0000
P7101 ETAL P7101 Moulded Wirewound CHIP Inductor 0 0.9900
P3081TR ETAL P3081TR ETAL Line Matching Transformers 0 7.2500
P3176 ETAL P3176 TRANSFORMER 0 0.0000
P6140 P6140 ETAL PLANAR POWER TRANSFORMER 0 0.0000
P520X P520X ETAL TRANSFORMER 0 0.0000
P7101-5650-2R2KT ETAL P7101-5650-2R2KT Wirewound Inductor 0 0.9900