Audio Transformers

Audio Transformers are transformers designed to be used in the amplifiers and high-frequency audio and voice circuits, for coupling ad impendence matching applications. The transformers allow an AC input signal to produce a related AC output signal without the input and the output being physically connected together. This is accomplished by having two or more coils of insulated wire wound around a magnetic metal core. When the AC signal passes through the input winding, a related AC signal appears on the output winding via the inductive coupling.
Audio Transformers perform several functions:
• They can step up (increase) or step down (decrease) a signal voltage
• They can increase or decrease the impedance of circuit
• Convert the circuit from unbalanced to balanced and from balanced to unbalanced
• Block DC current in a circuit while allowing the AC current flow
• They electrically isolate one audio device from another

There are two main types of transformers:
• Step-up / Step-down transformers – The primary and the secondary coils have a different number of windings, that means they have different impedances. Different impedances cause the signal level changed as it goes through the transformer.
• 1:1 transformers – Each coil has exactly the same number of windings which makes the impedance identical. This transformer doesn’t change the signal level but guarantees the physical electrical insulation between coils. These transformers are usually called Isolation Transformers.

...
Voir plus Voir moins

Filtres

Afficher 21 - 40 des 153 produits
Nombre de résultats par page
Description Prix Primary Impedance Secondary Impedance Primary DC Resistance Power Rating Current Rating Secondary DC Resistance Dimensions Mounting Type Termination Type Weight Depth Diameter Length Width
N° de stock RS 123-7238
Référence fabricantCUI30A02E
MarqueOEP
26,72 €
Each
Unité
70 (Parallel) Ω, 280 (Series) Ω 2.4 (Series) kΩ, 600 (Parallel) Ω 3.13 + 3.13Ω 2W - 20.8 + 20.8Ω 53.4 x 44.4 x 22.5mm Through Hole PC Pin 185g 22.5mm - 53.4mm 44.4mm
N° de stock RS 210-6425
Référence fabricantA262A3E
MarqueOEP
14,15 €
Each
Unité
150Ω 600Ω 20.6Ω 1mW Hz @ 30, 100mW Hz @ 300 - 1143Ω 28 x 22 x 23.2mm Through Hole Pin - 23.2mm - 28mm 22mm
N° de stock RS 123-7220
Référence fabricantZ1672E
MarqueOEP
8,65 €
Each
Unité
50Ω 200Ω 10.3Ω 2mW - 44.3Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
N° de stock RS 210-6497
Référence fabricantB18A001F
MarqueOEP
10,85 €
Each
Unité
- 320Ω 2W 500mA 0.7Ω 44.5 x 36 x 32.9mm Chassis Mount - 190g 32.9mm - 44.5mm 36mm
N° de stock RS 123-7218
Référence fabricantZ1670E
MarqueOEP
8,65 €
Each
Unité
50Ω 50Ω 10.3Ω 2mW - 13.3Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
N° de stock RS 800-4347
Référence fabricantDA101MC
1,35 €
Each
Unité
- - - - - - 9.52 x 9 x 6.35mm Surface Mount - 0.9g 6.35mm - 9.52mm 9mm
N° de stock RS 123-7239
Référence fabricantCUI30A04E
MarqueOEP
26,72 €
Each
Unité
150 (Parallel) Ω, 600 (Series) Ω 150 (Parallel) Ω, 600 (Series) Ω 9 + 9Ω 2W - 11.4 + 11.4Ω 53.4 x 44.4 x 22.5mm Through Hole PC Pin 185g 22.5mm - 53.4mm 44.4mm
N° de stock RS 210-6431
Référence fabricantA262A6E
MarqueOEP
13,39 €
Each
Unité
150Ω 150Ω 15Ω 1mW Hz @ 30, 100mW Hz @ 300 - 20Ω 28 x 22 x 23mm Through Hole Pin - 23mm - 28mm 22mm
N° de stock RS 168-3128
Référence fabricant749196537
7,938 €
Each (On a Reel of 120)
Unité
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
N° de stock RS 123-7206
Référence fabricantA187A18C
MarqueOEP
31,27 €
Each
Unité
200Ω 5kΩ 13.5Ω - - 352Ω 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
N° de stock RS 168-3107
Référence fabricant749196128
4,978 €
Each (On a Reel of 500)
Unité
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
N° de stock RS 123-7221
Référence fabricantZ1673E
MarqueOEP
8,65 €
Each
Unité
50Ω 600Ω 10.3Ω 2mW - 150Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
N° de stock RS 667-6082
Référence fabricantZ218A7E
MarqueOEP
11,00 €
Each
Unité
600Ω - 171Ω - - 234Ω 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
N° de stock RS 168-3129
Référence fabricant749196538
6,712 €
Each (On a Reel of 120)
Unité
- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
N° de stock RS 123-7225
Référence fabricantZ1678E
MarqueOEP
8,65 €
Each
Unité
75Ω 600Ω 15.6Ω 2mW - 146.7Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
N° de stock RS 168-3232
Référence fabricant749196548
9,93 €
Each
Unité
- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
N° de stock RS 210-6504
Référence fabricantP74A001F
MarqueOEP
19,29 €
Each
Unité
- 79Ω 5W - 1.3Ω 81.5 x 45.5 x 39mm Chassis Mount - 350g 39mm - 81.5mm 45.5mm
N° de stock RS 168-3126
Référence fabricant749196527
6,712 €
Each (On a Reel of 120)
Unité
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
N° de stock RS 168-3313
Référence fabricant749196348
8,28 €
Each
Unité
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
N° de stock RS 172-8110
Référence fabricantLM-NP-1001-B1L
MarqueBourns
1,348 €
Each (In a Bag of 28)
Unité
- - - - - - 17.7 x 17.7 x 12.6mm Chassis Mount - - 12.6mm - 17.7mm 17.7mm