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 anotherThere 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 doesnt change the signal level but guarantees the physical electrical insulation between coils. These transformers are usually called Isolation Transformers.

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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. 106-8577
Mfr. Part No.DA103C
MYR6.14
Each (In a Tube of 50)
units
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
RS Stock No. 800-4347
Mfr. Part No.DA101MC
MYR6.42
Each
units
- - - - - - 9.52 x 9 x 6.35mm Surface Mount - 0.9g 6.35mm - 9.52mm 9mm
RS Stock No. 106-8576
Mfr. Part No.DA101MC
MYR6.017
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. 123-7198
Mfr. Part No.A187A10C
BrandOEP
MYR165.41
Each
units
140kΩ 1 + 1kΩ 3.2kΩ - - 314Ω 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
RS Stock No. 715-6911
Mfr. Part No.DA103C
MYR6.42
Each
units
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
RS Stock No. 667-5950
Mfr. Part No.Z3002E
BrandOEP
MYR115.61
Each
units
10kΩ 10kΩ 2.1kΩ - - 2.2kΩ 32 x 15 x 27mm Through Hole - - 27mm - 32mm 15mm
RS Stock No. 168-3245
Mfr. Part No.749196248
MYR37.51
Each
units
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
RS Stock No. 168-3291
Mfr. Part No.749196328
MYR37.01
Each
units
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS Stock No. 123-7206
Mfr. Part No.A187A18C
BrandOEP
MYR169.16
Each
units
200Ω 5kΩ 13.5Ω - - 352Ω 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
RS Stock No. 168-3257
Mfr. Part No.749196308
MYR37.01
Each
units
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS Stock No. 667-5969
Mfr. Part No.Z3003E
BrandOEP
MYR115.61
Each
units
2.5 kΩ, 10 kΩ 10kΩ 2.1kΩ - - 2.2kΩ 32 x 15 x 27mm Through Hole - - 27mm - 32mm 15mm
RS Stock No. 123-7220
Mfr. Part No.Z1672E
BrandOEP
MYR46.77
Each
units
50Ω 200Ω 10.3Ω 2mW - 44.3Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
RS Stock No. 667-6032
Mfr. Part No.Z21808E
BrandOEP
MYR75.80
Each
units
150Ω - 45Ω - - 1.5kΩ 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
RS Stock No. 106-8575
Mfr. Part No.DA102MC
MYR6.017
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. 168-3325
Mfr. Part No.749196148
MYR35.71
Each
units
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
RS Stock No. 168-3298
Mfr. Part No.749196128
MYR35.71
Each
units
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
RS Stock No. 168-3267
Mfr. Part No.749196318
MYR37.01
Each
units
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS Stock No. 168-3112
Mfr. Part No.749196228
MYR24.99
Each (On a Reel of 400)
units
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
RS Stock No. 168-3301
Mfr. Part No.749196338
MYR37.01
Each
units
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS Stock No. 123-7214
Mfr. Part No.J30A09C
BrandOEP
MYR269.48
Each
units
600Ω 1.5 + 1.5 + 1.5kΩ 83Ω - - 89Ω 36 x 30 x 25mm Through Hole PC Pin 110g 25mm - 36mm 30mm
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