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 123-7219
Référence fabricantZ1671E
MarqueOEP
8,65 €
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50Ω 100Ω 10.3Ω 2mW - 21.4Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
N° de stock RS 123-7212
Référence fabricantJ30A03C
MarqueOEP
46,83 €
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150 Ω, 600 Ω 150 Ω, 600 Ω 34.5Ω - - 40.5Ω 36 x 30 x 25mm Through Hole PC Pin 110g 25mm - 36mm 30mm
N° de stock RS 106-8579
Référence fabricantDA102C
1,25 €
Each (In a Tube of 50)
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- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
N° de stock RS 168-3298
Référence fabricant749196128
7,47 €
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Unité
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
N° de stock RS 667-6088
Référence fabricantZ218A6E
MarqueOEP
11,00 €
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600Ω - 46Ω - - 60Ω 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
N° de stock RS 667-6032
Référence fabricantZ21808E
MarqueOEP
14,01 €
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Unité
150Ω - 45Ω - - 1.5kΩ 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
N° de stock RS 168-3115
Référence fabricant749196308
4,833 €
Each (On a Reel of 300)
Unité
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
N° de stock RS 168-3224
Référence fabricant749196547
10,53 €
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- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
N° de stock RS 123-7241
Référence fabricantR35A03F
MarqueOEP
39,60 €
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Unité
5kΩ 4 Ω, 8 Ω 320Ω 12W - 750mΩ 87.3 x 52 x 49.5mm Panel Mount Solder 465g 49.5mm - 87.3mm 52mm
N° de stock RS 168-3310
Référence fabricant749196138
7,57 €
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Unité
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
N° de stock RS 123-7210
Référence fabricantA262A47E
MarqueOEP
17,28 €
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150 Ω, 600 Ω 2.5 kΩ, 10 kΩ 20.6Ω 100mW - 474Ω 27.94 x 22.9 x 22.2mm Through Hole PC Pin 40g 22.2mm - 27.94mm 22.9mm
N° de stock RS 168-3113
Référence fabricant749196238
5,233 €
Each (On a Reel of 400)
Unité
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
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 168-3111
Référence fabricant749196218
5,233 €
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Unité
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
N° de stock RS 168-3326
Référence fabricant749196507
9,93 €
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Unité
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
N° de stock RS 168-3130
Référence fabricant749196547
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 168-3105
Référence fabricant749196108
4,626 €
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 123-7220
Référence fabricantZ1672E
MarqueOEP
8,65 €
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50Ω 200Ω 10.3Ω 2mW - 44.3Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
N° de stock RS 106-8575
Référence fabricantDA102MC
1,284 €
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Unité
- - - - - - 9.52 x 9 x 6.35mm Surface Mount - 0.9g 6.35mm - 9.52mm 9mm
N° de stock RS 210-6497
Référence fabricantB18A001F
MarqueOEP
10,85 €
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- 320Ω 2W 500mA 0.7Ω 44.5 x 36 x 32.9mm Chassis Mount - 190g 32.9mm - 44.5mm 36mm