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. 123-7207
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.A262A8E
Brand :OEP
THB775.51
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. 210-6532
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.D29A100
Brand :OEP
THB1,413.51
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. 123-7241
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.R35A03F
Brand :OEP
THB1,648.07
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. 106-8577
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DA103C
THB45.96
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
THB719.20
Each
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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. 800-4347
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DA101MC
THB48.10
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- - - - - - 9.52 x 9 x 6.35mm Surface Mount - 0.9g 6.35mm - 9.52mm 9mm
RS Stock No. 210-6475
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.N35A002F
Brand :OEP
THB711.42
Each
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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. 210-6504
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.P74A001F
Brand :OEP
THB802.98
Each
Units
- 79Ω 5W - 1.3Ω 81.5 x 45.5 x 39mm Chassis Mount - 350g 39mm - 81.5mm 45.5mm
RS Stock No. 123-7218
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z1670E
Brand :OEP
THB359.83
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
THB45.96
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. 210-6447
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.A262A7E
Brand :OEP
THB557.14
Each
Units
600Ω 600Ω 42Ω 100mW Hz @ 300, 1mW Hz @ 30, 2.5mW Hz @ 50 - 58Ω 28 x 22 x 23.2mm Through Hole Pin - 23.2mm - 28mm 22mm
RS Stock No. 123-7217
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.K30A06C
Brand :OEP
THB2,001.17
Each
Units
2.4 kΩ, 10 kΩ 10kΩ 450 (Primary 1) Ω, 590 (Primary 2) Ω - - 1.04kΩ 36 x 30 x 25mm Through Hole PC Pin 110g 25mm - 36mm 30mm
RS Stock No. 210-6526
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.N35A001F
Brand :OEP
THB718.29
Each
Units
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RS Stock No. 210-6425
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.A262A3E
Brand :OEP
THB659.36
Each
Units
150Ω 600Ω 20.6Ω 100mW Hz @ 300, 1mW Hz @ 30 - 1143Ω 28 x 22 x 23.2mm Through Hole Pin - 23.2mm - 28mm 22mm
RS Stock No. 123-7223
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z1676E
Brand :OEP
THB359.83
Each
Units
75Ω 150Ω 15.6Ω 2mW - 36Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
RS Stock No. 106-8578
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DA101C
THB45.96
Each (In a Tube of 50)
Units
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
RS Stock No. 715-6917
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DA102C
THB53.10
Each
Units
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
RS Stock No. 123-7225
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z1678E
Brand :OEP
THB359.83
Each
Units
75Ω 600Ω 15.6Ω 2mW - 146.7Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
RS Stock No. 172-8670
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SM-LP-5001E
Brand :Bourns
THB43.217
Each (On a Reel of 400)
Units
- - - - - - 12.8 x 7.5 x 9mm Surface Mount Solder - 9mm - 12.8mm 7.5mm
RS Stock No. 123-7229
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z1685E
Brand :OEP
THB361.20
Each
Units
600Ω 600Ω 117Ω 2mW - 151Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
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