Litz wire

CONSTRUCTION:

Conductor: Enamelled copper wire can be solderable or Non-solderable in Grade 1 (1 layer of enamel) or Grade 2 (2 layers of enamel).

INDEX THERMAL F155 (155º) F180 (180º) F200 (200º)

ENAMEL Polyurethane Polyester o Polyurethane Polyester o Polyamide
Stranded: Conductors arranged in concentric layers (7, 19, 37). The formation and the number of wires, depends on the section and the working frequency of this.
Insulation: Wire of tape the different material (textile or plastic) depending on the temperature and environmental conditions.

Nylon (Polyamide)	Permanent use temperature 120ºC - presentation yarn
Polyester (Polyester)	Permanent use temperature 130ºC - presentation yarn/tape
Nomex	Permanent use temperature 180ºC - presentation tape
Kapton (Polyamide)	Permanent use temperature 300ºC - presentation tape

FEATURES:

Litz Wire typically is used in applications operating within a frequency range of 10 kHz to 5 MHz. For products operating beyond this frequency range, special litz products may be supplied. Individually insulated single conductors make up the basic components of any litz construction whereby electrical current flows evenly distributed through each conductor cross section at higher frequencies.

Table Frequency – Diameter wire

Frecuency (kHz)		Recommended wire diameter (mm)
Min	Max	Aprox
0,06	1	0,320
1	10	0,250
11	20	0,180
21	50	0,120
51	100	0,100
101	350	0,060
351	850	0,050
851	1400	0,040
1401	3000	0,030

APPLICATION:

High frequency litz wire is either used for frequency or heating-related applications. Ultra fine litz wires provide solutions for both technologies regardless of frequency or impedance range. Electrical, mechanical and cost aspects need to be considered carefully during the design phase.

RF transformers
Chokes
Medical application
Sensors
Ballasts
Switching power supplies
Resistance wires for heating applications

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