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.

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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 715-6917
Référence fabricantDA102C
1,32 €
Each
Unité
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
N° de stock RS 210-6469
Référence fabricantA262CAN
MarqueOEP
5,84 €
Each
Unité
- - - - - - 29 x 24 x 23mm - - 16g 23mm - 29mm 24mm
N° de stock RS 106-8577
Référence fabricantDA103C
1,25 €
Each (In a Tube of 50)
Unité
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
N° de stock RS 210-6431
Référence fabricantA262A6E
MarqueOEP
13,39 €
Each
Unité
150Ω 150Ω 15Ω 100mW Hz @ 300, 1mW Hz @ 30 - 20Ω 28 x 22 x 23mm Through Hole Pin - 23mm - 28mm 22mm
N° de stock RS 168-3218
Référence fabricant749196228
3,37 €
Each
Unité
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
N° de stock RS 800-4347
Référence fabricantDA101MC
1,32 €
Each
Unité
- - - - - - 9.52 x 9 x 6.35mm Surface Mount - 0.9g 6.35mm - 9.52mm 9mm
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 168-3326
Référence fabricant749196507
4,26 €
Each
Unité
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
N° de stock RS 123-7209
Référence fabricantA262A45E/1
MarqueOEP
17,28 €
Each
Unité
200 Ω, 800 Ω 5 kΩ, 20 kΩ 24Ω 100mW - 1.076Ω 27.94 x 22.9 x 22.2mm Through Hole PC Pin 40g 22.2mm - 27.94mm 22.9mm
N° de stock RS 123-7227
Référence fabricantZ1681E
MarqueOEP
9,12 €
Each
Unité
150Ω 300Ω 29.5Ω 2mW - 52.2Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
N° de stock RS 715-6914
Référence fabricantDA101C
1,32 €
Each
Unité
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
N° de stock RS 667-5950
Référence fabricantZ3002E
MarqueOEP
21,37 €
Each
Unité
10kΩ 10kΩ 2.1kΩ - - 2.2kΩ 32 x 15 x 27mm Through Hole - - 27mm - 32mm 15mm
N° de stock RS 168-3130
Référence fabricant749196547
3,801 €
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 123-7203
Référence fabricantA187A15C
MarqueOEP
44,00 €
Each
Unité
110Ω 11kΩ 20.2Ω - - 1.59kΩ 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
N° de stock RS 168-3190
Référence fabricant749196208
3,37 €
Each
Unité
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
N° de stock RS 168-3298
Référence fabricant749196128
3,20 €
Each
Unité
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
N° de stock RS 123-7206
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 168-3122
Référence fabricant749196508
4,192 €
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 168-3211
Référence fabricant749196538
3,91 €
Each
Unité
- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
N° de stock RS 667-6050
Référence fabricantZ21808C
MarqueOEP
20,58 €
Each
Unité
150Ω - 45Ω - - 1.5kΩ 25 x 18.5 x 19.3mm Through Hole - - 19.3mm - 25mm 18.5mm