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庫存編號 168-3301
製造零件編號749196338
HK$85.09
單位
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS庫存編號 123-7226
製造零件編號Z1680E
BrandOEP
HK$78.46
單位
150Ω 150Ω 29.5Ω 2mW - 37.4Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
RS庫存編號 168-3120
製造零件編號749196348
HK$48.05
個 (在毎卷:300)
單位
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS庫存編號 168-3118
製造零件編號749196328
HK$48.05
個 (在毎卷:300)
單位
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS庫存編號 168-3116
製造零件編號749196318
HK$48.05
個 (在毎卷:300)
單位
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS庫存編號 123-7212
製造零件編號J30A03C
BrandOEP
HK$416.42
單位
150 Ω, 600 Ω 150 Ω, 600 Ω 34.5Ω - - 40.5Ω 36 x 30 x 25mm Through Hole PC Pin 110g 25mm - 36mm 30mm
RS庫存編號 123-7232
製造零件編號Z1688E
BrandOEP
HK$78.46
單位
600Ω 2.4kΩ 117Ω 2mW - 425Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
全新
RS庫存編號 188-8842
製造零件編號2337822-4
HK$48.014
個 (在毎卷:750)
單位
- - - - - - 12.7 x 8.7 x 5.95mm PCB Mount PC Pin - 5.95mm - 12.7mm 8.7mm
RS庫存編號 123-7223
製造零件編號Z1676E
BrandOEP
HK$78.46
單位
75Ω 150Ω 15.6Ω 2mW - 36Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
RS庫存編號 123-7240
製造零件編號D29A09F
BrandOEP
HK$326.80
單位
6.6kΩ 3.75 Ω, 7.5 Ω, 15 Ω 294.7Ω 10W - 682mΩ 76.8 x 64 x 64mm Panel Mount Solder 860g 64mm - 76.8mm 64mm
RS庫存編號 168-3193
製造零件編號749196508
HK$108.99
單位
- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS庫存編號 106-8579
製造零件編號DA102C
HK$11.949
毎管:50 個
單位
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
RS庫存編號 667-6038
製造零件編號Z21807E
BrandOEP
HK$103.05
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 667-5969
製造零件編號Z3003E
BrandOEP
HK$165.25
單位
2.5 kΩ, 10 kΩ 10kΩ 2.1kΩ - - 2.2kΩ 32 x 15 x 27mm Through Hole - - 27mm - 32mm 15mm
RS庫存編號 168-3224
製造零件編號749196547
HK$108.99
單位
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS庫存編號 168-3190
製造零件編號749196208
HK$86.18
單位
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
RS庫存編號 123-7210
製造零件編號A262A47E
BrandOEP
HK$139.59
單位
150 Ω, 600 Ω 2.5 kΩ, 10 kΩ 20.6Ω 100mW - 474Ω 27.94 x 22.9 x 22.2mm Through Hole PC Pin 40g 22.2mm - 27.94mm 22.9mm
RS庫存編號 123-7242
製造零件編號R35A03F/4
BrandOEP
HK$329.09
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 168-3119
製造零件編號749196338
HK$48.05
個 (在毎卷:300)
單位
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS庫存編號 123-7237
製造零件編號V78A01F
BrandOEP
HK$488.84
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