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 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
N° de stock RS 106-8578
Référence fabricantDA101C
1,268 €
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 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 168-3121
Référence fabricant749196507
4,192 €
Each (On a Reel of 120)
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- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
N° de stock RS 123-7226
Référence fabricantZ1680E
MarqueOEP
8,65 €
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150Ω 150Ω 29.5Ω 2mW - 37.4Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
N° de stock RS 210-6431
Référence fabricantA262A6E
MarqueOEP
13,39 €
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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 168-3211
Référence fabricant749196538
3,91 €
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- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
N° de stock RS 168-3270
Référence fabricant749196118
2,94 €
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- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
N° de stock RS 106-8577
Référence fabricantDA103C
1,25 €
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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 €
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10kΩ 10kΩ 2.1kΩ - - 2.2kΩ 32 x 15 x 27mm Through Hole - - 27mm - 32mm 15mm
N° de stock RS 667-6048
Référence fabricantZ21806C
MarqueOEP
19,65 €
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270Ω 300Ω 270Ω - - 300Ω 25 x 18.5 x 19.3mm Through Hole - 45g 19.3mm - 25mm 18.5mm
N° de stock RS 168-3298
Référence fabricant749196128
3,20 €
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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 667-6082
Référence fabricantZ218A7E
MarqueOEP
11,00 €
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600Ω - 171Ω - - 234Ω 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
N° de stock RS 168-3111
Référence fabricant749196218
5,233 €
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- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
N° de stock RS 168-3107
Référence fabricant749196128
3,151 €
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 123-7241
Référence fabricantR35A03F
MarqueOEP
39,60 €
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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 715-6917
Référence fabricantDA102C
1,32 €
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Unité
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
N° de stock RS 168-3108
Référence fabricant749196138
3,151 €
Each (On a Reel of 500)
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- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
N° de stock RS 123-7242
Référence fabricantR35A03F/4
MarqueOEP
41,80 €
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5kΩ 8 Ω, 16 Ω 365Ω 3W - 900mΩ 87.3 x 52 x 49.5mm Panel Mount Solder 465g 49.5mm - 87.3mm 52mm
N° de stock RS 210-6469
Référence fabricantA262CAN
MarqueOEP
5,84 €
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- - - - - - 29 x 24 x 23mm - - 16g 23mm - 29mm 24mm