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 anotherThere 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 doesnt 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 123-7205
製造零件編號A187A17C
BrandOEP
HK$325.24
單位
200Ω 600Ω 11.5Ω - - 42Ω 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
RS庫存編號 168-3121
製造零件編號749196507
HK$77.822
個 (在毎卷:120)
單位
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS庫存編號 123-7242
製造零件編號R35A03F/4
BrandOEP
HK$434.72
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 123-7220
製造零件編號Z1672E
BrandOEP
HK$89.92
單位
50Ω 200Ω 10.3Ω 2mW - 44.3Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
RS庫存編號 168-3257
製造零件編號749196308
HK$77.44
單位
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS庫存編號 168-3270
製造零件編號749196118
HK$74.70
單位
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
RS庫存編號 123-7208
製造零件編號A262A41E
BrandOEP
HK$179.72
單位
1 kΩ, 4 kΩ 1 kΩ, 4 kΩ 132Ω 100mW - 190Ω 27.94 x 22.9 x 22.2mm Through Hole PC Pin 40g 22.2mm - 27.94mm 22.9mm
RS庫存編號 123-7210
製造零件編號A262A47E
BrandOEP
HK$179.72
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 168-3313
製造零件編號749196348
HK$77.44
單位
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
RS庫存編號 123-7223
製造零件編號Z1676E
BrandOEP
HK$89.92
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 106-8579
製造零件編號DA102C
HK$12.583
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 123-7238
製造零件編號CUI30A02E
BrandOEP
HK$277.88
單位
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庫存編號 168-3316
製造零件編號749196527
HK$99.26
單位
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS庫存編號 123-7231
製造零件編號Z1687E
BrandOEP
HK$89.92
單位
600Ω 1.2kΩ 117Ω 2mW - 262Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
RS庫存編號 123-7218
製造零件編號Z1670E
BrandOEP
HK$89.92
單位
50Ω 50Ω 10.3Ω 2mW - 13.3Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
RS庫存編號 168-3232
製造零件編號749196548
HK$99.26
單位
- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS庫存編號 851-3686
製造零件編號Z1604
BrandOEP
HK$84.31
單位
600Ω 600Ω 109Ω 2mW - 134Ω 18 x 12.6 x 18mm Through Hole PC Pin - 18mm - 18mm 12.6mm
RS庫存編號 168-3298
製造零件編號749196128
HK$73.21
單位
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
RS庫存編號 168-3118
製造零件編號749196328
HK$55.684
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 168-3112
製造零件編號749196228
HK$51.234
個 (在毎卷:400)
單位
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm