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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รายละเอียดสินค้า / Description ราคา / 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
ใหม่ / New
RS Stock No. 188-8842
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2337822-4
THB218.789
Each (On a Reel of 750)
Units
- - - - - - 12.7 x 8.7 x 5.95mm PCB Mount PC Pin - 5.95mm - 12.7mm 8.7mm
RS Stock No. 210-6497
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.B18A001F
Brand :OEP
THB405.39
Each
Units
- 320Ω 2W 500mA 0.7Ω 44.5 x 36 x 32.9mm Chassis Mount - 190g 32.9mm - 44.5mm 36mm
RS Stock No. 667-6032
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z21808E
Brand :OEP
THB849.75
Each
Units
150Ω - 45Ω - - 1.5kΩ 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
RS Stock No. 168-3121
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196507
THB280.50
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. 168-3105
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196108
THB211.066
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. 123-7233
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.Z30A11C
Brand :OEP
THB1,188.00
Each
Units
150 Ω, 600 Ω 2.4 kΩ, 600 Ω 15 (Primary 1) Ω, 15 (Primary 2) Ω - - 74.2 (Secondary 1 and 2)Ω 36 x 30 x 16mm Through Hole PC Pin 57g 16mm - 36mm 30mm
RS Stock No. 168-3316
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196527
THB497.00
Each
Units
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
ใหม่ / New
RS Stock No. 188-9071
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2337824-2
THB436.00
Each: (In a Pack of 2)
Units
- - - - - - 31.3 x 12.2 x 6.99mm PCB Mount PC Pin - 6.99mm - 31.3mm 12.2mm
ใหม่ / New
RS Stock No. 188-8844
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2337824-2
THB269.434
Each (On a Reel of 350)
Units
- - - - - - 31.3 x 12.2 x 6.99mm PCB Mount PC Pin - 6.99mm - 31.3mm 12.2mm
RS Stock No. 168-3116
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196318
THB218.953
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. 168-3118
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196328
THB218.953
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. 168-3313
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196348
THB388.00
Each
Units
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS Stock No. 168-3246
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749010310
THB217.00
Each
Units
- - - - - - 12.7 x 8.67 x 4mm Surface Mount Solder - 4mm - 12.7mm 8.67mm
RS Stock No. 106-8575
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DA102MC
THB43.05
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. 123-7238
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CUI30A02E
Brand :OEP
THB1,040.00
Each
Units
70 (Parallel) Ω, 280 (Series) Ω 2.4 (Series) kΩ, 600 (Parallel) Ω 3.13 + 3.13Ω 2W - 20.8 + 20.8Ω 53.4 x 44.4 x 22.5mm Through Hole PC Pin 185g 22.5mm - 53.4mm 44.4mm
RS Stock No. 168-3301
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196338
THB388.00
Each
Units
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS Stock No. 168-3258
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196108
THB373.00
Each
Units
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
RS Stock No. 168-3128
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196537
THB280.50
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. 168-3115
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196308
THB218.953
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. 210-6368
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E187A
Brand :OEP
THB566.10
Each
Units
800Ω 800Ω 63Ω - - 84Ω 20.5 x 17 x 16mm Through Hole - - 16mm - 20.5mm 17mm
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