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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Description 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庫存編號 210-6481
製造零件編號TF021
BrandOEP
TWD472.00
單位
- 0.39Ω 2W - 0.47Ω 65 x 40 x 37mm Chassis Mount - 130g 37mm - 65mm 40mm
RS庫存編號 210-6419
製造零件編號A262A2E
BrandOEP
TWD733.00
單位
150Ω 600Ω 10.3Ω 1mW Hz @ 30, 100mW Hz @ 300 - 59.5Ω 27.94 x 22 x 22.9mm Through Hole Pin - 22.9mm - 27.94mm 22mm
RS庫存編號 667-5962
製造零件編號CN006
BrandOEP
TWD417.00
單位
- - - - - - 34.7 x 15.5 x 28.2mm - - - 28.2mm - 34.7mm 15.5mm
RS庫存編號 123-7237
製造零件編號V78A01F
BrandOEP
TWD2,773.00
單位
5.6kΩ 4 Ω, 8 Ω, 16 Ω 100Ω 25W - 432Ω 100 x 84 x 68.6mm Panel Mount Solder 2kg 68.6mm - 100mm 84mm
RS庫存編號 210-6425
製造零件編號A262A3E
BrandOEP
TWD760.00
單位
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庫存編號 210-6447
製造零件編號A262A7E
BrandOEP
TWD706.00
單位
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庫存編號 123-7202
製造零件編號A187A14C
BrandOEP
TWD1,400.00
單位
150 Ω, 600 Ω 10kΩ 38Ω - - 1.085kΩ 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
RS庫存編號 210-6526
製造零件編號N35A001F
BrandOEP
TWD745.00
單位
- 37Ω 10W - 0.5Ω 88 x 50 x 44mm Chassis Mount - 400g 44mm - 88mm 50mm
RS庫存編號 667-6038
製造零件編號Z21807E
BrandOEP
TWD536.00
單位
10 → 20kΩ - 1.8kΩ - - 0.715 kΩ, 1.1 kΩ 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
RS庫存編號 667-6066
製造零件編號Z218A3C
BrandOEP
TWD746.00
單位
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庫存編號 210-6497
製造零件編號B18A001F
BrandOEP
TWD468.00
單位
- 320Ω 2W 500mA 0.7Ω 44.5 x 36 x 32.9mm Chassis Mount - 190g 32.9mm - 44.5mm 36mm
RS庫存編號 210-6352
製造零件編號X187B
BrandOEP
TWD2,435.00
單位
600Ω 50kΩ 30.9Ω - - 1520Ω 34 (Dia.) x 31mm Chassis Mount Termination Wire 100g 31mm 34mm - -
RS庫存編號 667-6088
製造零件編號Z218A6E
BrandOEP
TWD452.00
單位
600Ω - 46Ω - - 60Ω 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
RS庫存編號 123-7242
製造零件編號R35A03F/4
BrandOEP
TWD1,804.00
單位
5kΩ 8 Ω, 16 Ω 365Ω 3W - 900mΩ 87.3 x 52 x 49.5mm Panel Mount Solder 465g 49.5mm - 87.3mm 52mm
RS庫存編號 667-5950
製造零件編號Z3002E
BrandOEP
TWD878.00
單位
10kΩ 10kΩ 2.1kΩ - - 2.2kΩ 32 x 15 x 27mm Through Hole - - 27mm - 32mm 15mm
RS庫存編號 168-3111
製造零件編號749196218
TWD240.90
個 (在毎卷:400)
單位
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
RS庫存編號 168-3112
製造零件編號749196228
TWD255.70
個 (在毎卷:400)
單位
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
RS庫存編號 123-7209
製造零件編號A262A45E/1
BrandOEP
TWD710.00
單位
200 Ω, 800 Ω 5 kΩ, 20 kΩ 24Ω 100mW - 1.076Ω 27.94 x 22.9 x 22.2mm Through Hole PC Pin 40g 22.2mm - 27.94mm 22.9mm
RS庫存編號 667-6032
製造零件編號Z21808E
BrandOEP
TWD576.00
單位
150Ω - 45Ω - - 1.5kΩ 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
RS庫存編號 851-3686
製造零件編號Z1604
BrandOEP
TWD517.00
單位
600Ω 600Ω 109Ω 2mW - 134Ω 18 x 12.6 x 18mm Through Hole PC Pin - 18mm - 18mm 12.6mm