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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RS Stock No. 123-7222
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z1675E
Brand :OEP
THB295.05
Each
Units
75Ω 75Ω 15.6Ω 2mW - 19.6Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
RS Stock No. 123-7234
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z30A18C
Brand :OEP
THB1,285.58
Each
Units
150 Ω, 600 Ω 150 Ω, 600 Ω 36.4Ω - - 44.4Ω 36 x 30 x 16mm Through Hole PC Pin 57g 16mm - 36mm 30mm
RS Stock No. 667-6035
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z21806E
Brand :OEP
THB385.12
Each
Units
- - 270Ω - - 300Ω 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
RS Stock No. 123-7212
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.J30A03C
Brand :OEP
THB1,532.64
Each
Units
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
RS Stock No. 210-6431
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.A262A6E
Brand :OEP
THB398.92
Each
Units
150Ω 150Ω 15Ω 1mW Hz @ 30, 100mW Hz @ 300 - 20Ω 28 x 22 x 23mm Through Hole Pin - 23mm - 28mm 22mm
RS Stock No. 123-7237
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.V78A01F
Brand :OEP
THB1,852.50
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. 123-7226
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z1680E
Brand :OEP
THB304.30
Each
Units
150Ω 150Ω 29.5Ω 2mW - 37.4Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
RS Stock No. 667-6088
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z218A6E
Brand :OEP
THB335.29
Each
Units
600Ω - 46Ω - - 60Ω 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
RS Stock No. 123-7239
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CUI30A04E
Brand :OEP
THB842.40
Each
Units
150 (Parallel) Ω, 600 (Series) Ω 150 (Parallel) Ω, 600 (Series) Ω 9 + 9Ω 2W - 11.4 + 11.4Ω 53.4 x 44.4 x 22.5mm Through Hole PC Pin 185g 22.5mm - 53.4mm 44.4mm
RS Stock No. 667-6048
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z21806C
Brand :OEP
THB812.13
Each
Units
270Ω 300Ω 270Ω - - 300Ω 25 x 18.5 x 19.3mm Through Hole - 45g 19.3mm - 25mm 18.5mm
RS Stock No. 123-7200
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.A187A12C
Brand :OEP
THB914.45
Each
Units
600Ω 600Ω 49.8Ω - - 48.5Ω 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
RS Stock No. 123-7242
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.R35A03F/4
Brand :OEP
THB1,259.61
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. 123-7210
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.A262A47E
Brand :OEP
THB570.90
Each
Units
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
RS Stock No. 123-7202
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.A187A14C
Brand :OEP
THB1,035.00
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. 123-7205
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.A187A17C
Brand :OEP
THB961.88
Each
Units
200Ω 600Ω 11.5Ω - - 42Ω 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
RS Stock No. 123-7215
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.J30A11C
Brand :OEP
THB1,554.44
Each
Units
150 Ω, 600 Ω 3.75 kΩ, 15 kΩ 99Ω - - 308Ω 36 x 30 x 25mm Through Hole PC Pin 110g 25mm - 36mm 30mm
RS Stock No. 667-6038
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z21807E
Brand :OEP
THB551.37
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. 123-7240
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.D29A09F
Brand :OEP
THB1,247.49
Each
Units
6.6kΩ 3.75 Ω, 7.5 Ω, 15 Ω 294.7Ω 10W - 682mΩ 76.8 x 64 x 64mm Panel Mount Solder 860g 64mm - 76.8mm 64mm
RS Stock No. 123-7241
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.R35A03F
Brand :OEP
THB1,262.84
Each
Units
5kΩ 4 Ω, 8 Ω 320Ω 12W - 750mΩ 87.3 x 52 x 49.5mm Panel Mount Solder 465g 49.5mm - 87.3mm 52mm
RS Stock No. 123-7207
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.A262A8E
Brand :OEP
THB699.12
Each
Units
2.5 kΩ, 10 kΩ 2.5 kΩ, 10 kΩ 424Ω 100mW - 464Ω 27.94 x 22.9 x 22.2mm Through Hole PC Pin 40g 22.2mm - 27.94mm 22.9mm
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