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. 123-7231
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z1687E
Brand :OEP
THB359.83
Each
Units
600Ω 1.2kΩ 117Ω 2mW - 262Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
RS Stock No. 168-3121
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196507
THB289.198
Each (On a Reel of 120)
Units
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS Stock No. 168-3258
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196108
THB281.56
Each
Units
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
RS Stock No. 168-3206
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196517
THB361.50
Each
Units
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS Stock No. 168-3131
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196548
THB289.198
Each (On a Reel of 120)
Units
- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS Stock No. 168-3120
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196348
THB203.45
Each (On a Reel of 300)
Units
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS Stock No. 168-3325
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196148
THB281.56
Each
Units
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
RS Stock No. 123-7211
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.A262A48E
Brand :OEP
THB719.20
Each
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150 Ω, 600 Ω 1.25 kΩ, 5 kΩ 20.6Ω 100mW - 220Ω 27.94 x 22.9 x 22.2mm Through Hole PC Pin 40g 22.2mm - 27.94mm 22.9mm
RS Stock No. 168-3108
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196138
THB181.378
Each (On a Reel of 500)
Units
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
RS Stock No. 168-3219
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196518
THB361.50
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Units
- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS Stock No. 168-3257
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196308
THB291.88
Each
Units
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS Stock No. 168-3109
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196148
THB181.378
Each (On a Reel of 500)
Units
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
RS Stock No. 168-3316
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196527
THB374.13
Each
Units
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS Stock No. 168-3313
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196348
THB291.88
Each
Units
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS Stock No. 123-7198
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.A187A10C
Brand :OEP
THB1,272.68
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. 123-7235
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z30A23C
Brand :OEP
THB1,817.92
Each
Units
200 Ω, 800 Ω 5kΩ 42 Ω, 45 Ω - - 929Ω 36 x 30 x 16mm Through Hole PC Pin 57g 16mm - 36mm 30mm
RS Stock No. 168-3326
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196507
THB361.50
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Units
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS Stock No. 168-3107
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196128
THB178.32
Each (On a Reel of 500)
Units
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
RS Stock No. 667-6032
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z21808E
Brand :OEP
THB583.23
Each
Units
150Ω - 45Ω - - 1.5kΩ 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
RS Stock No. 168-3111
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196218
THB190.414
Each (On a Reel of 400)
Units
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
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