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 210-6425
製造零件編號A262A3E
BrandOEP
HK$114.07
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 168-3128
製造零件編號749196537
HK$61.557
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 123-7216
製造零件編號J30A14C
BrandOEP
HK$396.50
單位
200 Ω, 800 Ω 10 kΩ, 39 kΩ 118Ω - - 1.384kΩ 36 x 30 x 25mm Through Hole PC Pin 110g 25mm - 36mm 30mm
RS庫存編號 168-3246
製造零件編號749010310
HK$47.68
單位
- - - - - - 12.7 x 8.67 x 4mm Surface Mount Solder - 4mm - 12.7mm 8.67mm
RS庫存編號 168-3129
製造零件編號749196538
HK$61.557
個 (在毎卷:120)
單位
- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS庫存編號 168-3267
製造零件編號749196318
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 168-3130
製造零件編號749196547
HK$61.557
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 123-7211
製造零件編號A262A48E
BrandOEP
HK$155.10
單位
150 Ω, 600 Ω 1.25 kΩ, 5 kΩ 20.6Ω 100mW - 220Ω 27.94 x 22.9 x 22.2mm Through Hole PC Pin 40g 22.2mm - 27.94mm 22.9mm
RS庫存編號 168-3205
製造零件編號749196218
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 123-7217
製造零件編號K30A06C
BrandOEP
HK$377.49
單位
2.4 kΩ, 10 kΩ 10kΩ 450 (Primary 1) Ω, 590 (Primary 2) Ω - - 1.04kΩ 36 x 30 x 25mm Through Hole PC Pin 110g 25mm - 36mm 30mm
RS庫存編號 800-4338
製造零件編號DA102MC
HK$14.61
單位
- - - - - - 9.52 x 9 x 6.35mm Surface Mount - 0.9g 6.35mm - 9.52mm 9mm
RS庫存編號 168-3115
製造零件編號749196308
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
全新
RS庫存編號 188-9074
製造零件編號2337822-5
HK$100.905
/個 (每包:2個)
單位
- - - - - - 18.25 x 12.24 x 6.99mm PCB Mount PC Pin - 6.99mm - 18.25mm 12.24mm
RS庫存編號 123-7201
製造零件編號A187A13C
BrandOEP
HK$227.61
單位
10kΩ 10kΩ 469 (Primary 1) Ω, 580 (Primary 2) Ω - - 591Ω 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
RS庫存編號 667-6066
製造零件編號Z218A3C
BrandOEP
HK$135.41
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 210-6380
製造零件編號R/Z1606
BrandOEP
HK$80.50
單位
800Ω 800Ω 109Ω 2mW - 134Ω 18 x 12.7 x 18mm Through Hole - - 18mm - 18mm 12.7mm
RS庫存編號 106-8578
製造零件編號DA101C
HK$11.95
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 168-3122
製造零件編號749196508
HK$61.557
個 (在毎卷:120)
單位
- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS庫存編號 168-3316
製造零件編號749196527
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 851-3686
製造零件編號Z1604
BrandOEP
HK$75.47
單位
600Ω 600Ω 109Ω 2mW - 134Ω 18 x 12.6 x 18mm Through Hole PC Pin - 18mm - 18mm 12.6mm