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
RS Stock No. 168-3109
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196148
THB173.60
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. 168-3218
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196228
THB258.80
Each
Units
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
RS Stock No. 168-3124
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196517
THB277.29
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. 168-3111
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196218
THB182.27
Each (On a Reel of 400)
Units
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
RS Stock No. 168-3326
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196507
THB304.92
Each
Units
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS Stock No. 168-3205
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196218
THB241.04
Each
Units
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
RS Stock No. 168-3127
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196528
THB277.29
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. 168-3121
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196507
THB277.29
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. 168-3329
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196528
THB304.92
Each
Units
- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS Stock No. 168-3112
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196228
THB182.27
Each (On a Reel of 400)
Units
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
RS Stock No. 168-3206
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196517
THB304.92
Each
Units
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS Stock No. 168-3246
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749010310
THB133.27
Each
Units
- - - - - - 12.7 x 8.67 x 4mm Surface Mount Solder - 4mm - 12.7mm 8.67mm
RS Stock No. 168-3325
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.749196148
THB292.14
Each
Units
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm