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 667-6044
製造零件編號Z21805C
BrandOEP
HK$256.99
單位
500Ω 1kΩ 37Ω - - 172Ω 25 x 19.3 x 18.5mm Surface Mount - 28g 18.5mm - 25mm 19.3mm
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 168-3310
製造零件編號749196138
HK$67.50
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 168-3218
製造零件編號749196228
HK$78.47
單位
- - 200mΩ - 800mA - 16.3 x 12 x 7.4mm Surface Mount Solder - 7.4mm - 16.3mm 12mm
RS庫存編號 715-6917
製造零件編號DA102C
HK$12.06
單位
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
RS庫存編號 168-3219
製造零件編號749196518
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 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
全新
RS庫存編號 188-8844
製造零件編號2337824-2
HK$59.129
個 (在毎卷:350)
單位
- - - - - - 31.3 x 12.2 x 6.99mm PCB Mount PC Pin - 6.99mm - 31.3mm 12.2mm
RS庫存編號 123-7208
製造零件編號A262A41E
BrandOEP
HK$139.59
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 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 168-3125
製造零件編號749196518
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 168-3121
製造零件編號749196507
HK$49.21
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 123-7232
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
RS庫存編號 123-7209
製造零件編號A262A45E/1
BrandOEP
HK$139.59
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
全新
RS庫存編號 188-8841
製造零件編號2337826-1
HK$84.104
個 (在毎卷:400)
單位
- - - - - - 31 x 12.25 x 6.99mm PCB Mount PC Pin - 6.99mm - 31mm 12.25mm
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 168-3206
製造零件編號749196517
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 123-7203
製造零件編號A187A15C
BrandOEP
HK$341.47
單位
110Ω 11kΩ 20.2Ω - - 1.59kΩ 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
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 123-7230
製造零件編號Z1686E
BrandOEP
HK$78.46
單位
600Ω 900Ω 117Ω 2mW - 180Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm