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. 123-7199
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.A187A11C
Brand :OEP
THB982.80
Each
Units
577Ω 1 + 1kΩ 49.8Ω - - 48.5 (Secondary 1) Ω, 50 (Secondary 2) Ω 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
RS Stock No. 210-6504
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.P74A001F
Brand :OEP
THB535.16
Each
Units
- 79Ω 5W - 1.3Ω 81.5 x 45.5 x 39mm Chassis Mount - 350g 39mm - 81.5mm 45.5mm
RS Stock No. 210-6532
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.D29A100
Brand :OEP
THB817.16
Each
Units
- 4 → 16Ω 191.5Ω 1 W, 2 W, 5 W, 15 W, 30 W - 0.2Ω 105.5 x 65.5 x 58mm Chassis Mount - 1kg 58mm - 105.5mm 65.5mm
RS Stock No. 106-8577
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DA103C
THB53.909
Each (In a Tube of 50)
Units
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
RS Stock No. 667-6066
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z218A3C
Brand :OEP
THB536.49
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. 210-6425
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.A262A3E
Brand :OEP
THB472.17
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. 123-7221
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z1673E
Brand :OEP
THB254.56
Each
Units
50Ω 600Ω 10.3Ω 2mW - 150Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
RS Stock No. 800-4347
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DA101MC
THB50.02
Each
Units
- - - - - - 9.52 x 9 x 6.35mm Surface Mount - 0.9g 6.35mm - 9.52mm 9mm
RS Stock No. 210-6447
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.A262A7E
Brand :OEP
THB511.06
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. 210-6475
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.N35A002F
Brand :OEP
THB512.34
Each
Units
4 → 15kΩ 3 → 15Ω 1012Ω 3.5W 40mA 1.5Ω 74 x 41.5 x 36mm Chassis Mount - 250g 36mm - 74mm 41.5mm
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. 210-6526
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.N35A001F
Brand :OEP
THB609.93
Each
Units
- 37Ω 10W - 0.5Ω 88 x 50 x 44mm Chassis Mount - 400g 44mm - 88mm 50mm
RS Stock No. 715-6911
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DA103C
THB73.19
Each
Units
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
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
RS Stock No. 123-7218
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z1670E
Brand :OEP
THB254.56
Each
Units
50Ω 50Ω 10.3Ω 2mW - 13.3Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
RS Stock No. 106-8576
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DA101MC
THB46.387
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. 715-6914
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DA101C
THB65.02
Each
Units
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
RS Stock No. 667-5969
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z3003E
Brand :OEP
THB1,014.41
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. 123-7224
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z1677E
Brand :OEP
THB304.30
Each
Units
75Ω 300Ω 15.6Ω 2mW - 53.6Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
RS Stock No. 210-6352
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.X187B
Brand :OEP
THB1,520.03
Each
Units
600Ω 50kΩ 30.9Ω - - 1520Ω 34 (Dia.) x 31mm Chassis Mount Termination Wire 100g 31mm 34mm - -
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