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.

...
Read more Read less

Filters

Viewing 1 - 20 of 155 products
Results per page
Description Price Primary Impedance Secondary Impedance Primary DC Resistance Power Rating Current Rating Secondary DC Resistance Dimensions Mounting Type Termination Type Weight Depth Diameter Length Width
RS Stock No. 210-6481
Mfr. Part No.TF021
BrandOEP
TWD347.00
Each
units
- 0.39Ω 2W - 0.47Ω 65 x 40 x 37mm Chassis Mount - 130g 37mm - 65mm 40mm
RS Stock No. 210-6419
Mfr. Part No.A262A2E
BrandOEP
TWD634.00
Each
units
150Ω 600Ω 10.3Ω 1mW Hz @ 30, 100mW Hz @ 300 - 59.5Ω 27.94 x 22 x 22.9mm Through Hole Pin - 22.9mm - 27.94mm 22mm
RS Stock No. 667-5962
Mfr. Part No.CN006
BrandOEP
TWD366.00
Each
units
- - - - - - 34.7 x 15.5 x 28.2mm - - - 28.2mm - 34.7mm 15.5mm
RS Stock No. 123-7237
Mfr. Part No.V78A01F
BrandOEP
TWD1,908.00
Each
units
5.6kΩ 4 Ω, 8 Ω, 16 Ω 100Ω 25W - 432Ω 100 x 84 x 68.6mm Panel Mount Solder 2kg 68.6mm - 100mm 84mm
RS Stock No. 210-6425
Mfr. Part No.A262A3E
BrandOEP
TWD513.00
Each
units
150Ω 600Ω 20.6Ω 1mW Hz @ 30, 100mW Hz @ 300 - 1143Ω 28 x 22 x 23.2mm Through Hole Pin - 23.2mm - 28mm 22mm
RS Stock No. 210-6526
Mfr. Part No.N35A001F
BrandOEP
TWD479.00
Each
units
- 37Ω 10W - 0.5Ω 88 x 50 x 44mm Chassis Mount - 400g 44mm - 88mm 50mm
RS Stock No. 210-6352
Mfr. Part No.X187B
BrandOEP
TWD1,445.00
Each
units
600Ω 50kΩ 30.9Ω - - 1520Ω 34 (Dia.) x 31mm Chassis Mount Termination Wire 100g 31mm 34mm - -
RS Stock No. 123-7202
Mfr. Part No.A187A14C
BrandOEP
TWD1,053.00
Each
units
150 Ω, 600 Ω 10kΩ 38Ω - - 1.085kΩ 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
RS Stock No. 106-8576
Mfr. Part No.DA101MC
TWD41.00
Each (In a Tube of 50)
units
- - - - - - 9.52 x 9 x 6.35mm Surface Mount - 0.9g 6.35mm - 9.52mm 9mm
RS Stock No. 667-6038
Mfr. Part No.Z21807E
BrandOEP
TWD468.00
Each
units
10 → 20kΩ - 1.8kΩ - - 0.715 kΩ, 1.1 kΩ 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
RS Stock No. 800-4347
Mfr. Part No.DA101MC
TWD45.00
Each
units
- - - - - - 9.52 x 9 x 6.35mm Surface Mount - 0.9g 6.35mm - 9.52mm 9mm
RS Stock No. 210-6447
Mfr. Part No.A262A7E
BrandOEP
TWD499.00
Each
units
600Ω 600Ω 42Ω 1mW Hz @ 30, 2.5mW Hz @ 50, 100mW Hz @ 300 - 58Ω 28 x 22 x 23.2mm Through Hole Pin - 23.2mm - 28mm 22mm
RS Stock No. 667-6066
Mfr. Part No.Z218A3C
BrandOEP
TWD582.00
Each
units
1.8 kΩ, 600 Ω - 47Ω - - 1.34 kΩ, 1.46 kΩ 25.2 x 17.8 x 19mm Through Hole - - 19mm - 25.2mm 17.8mm
RS Stock No. 210-6497
Mfr. Part No.B18A001F
BrandOEP
TWD302.00
Each
units
- 320Ω 2W 500mA 0.7Ω 44.5 x 36 x 32.9mm Chassis Mount - 190g 32.9mm - 44.5mm 36mm
RS Stock No. 123-7242
Mfr. Part No.R35A03F/4
BrandOEP
TWD1,231.00
Each
units
5kΩ 8 Ω, 16 Ω 365Ω 3W - 900mΩ 87.3 x 52 x 49.5mm Panel Mount Solder 465g 49.5mm - 87.3mm 52mm
RS Stock No. 667-6088
Mfr. Part No.Z218A6E
BrandOEP
TWD365.00
Each
units
600Ω - 46Ω - - 60Ω 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
RS Stock No. 168-3205
Mfr. Part No.749196218
TWD281.00
Each
units
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
RS Stock No. 168-3313
Mfr. Part No.749196348
TWD307.00
Each
units
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS Stock No. 168-3206
Mfr. Part No.749196517
TWD355.00
Each
units
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS Stock No. 210-6504
Mfr. Part No.P74A001F
BrandOEP
TWD621.00
Each
units
- 79Ω 5W - 1.3Ω 81.5 x 45.5 x 39mm Chassis Mount - 350g 39mm - 81.5mm 45.5mm