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 168-3109
製造零件編號749196148
TWD197.00
個 (在毎卷:500)
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 667-5969
製造零件編號Z3003E
BrandOEP
TWD875.00
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 123-7226
製造零件編號Z1680E
BrandOEP
TWD354.00
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 122-9165
製造零件編號SM-LP-5001E
BrandBourns
TWD87.00
/個 (每包:2個)
單位
600Ω - 115Ω - - 115Ω 12.8 x 7.5 x 9mm Surface Mount Solder - 9mm - 12.8mm 7.5mm
RS庫存編號 123-7210
製造零件編號A262A47E
BrandOEP
TWD708.00
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 172-8670
製造零件編號SM-LP-5001E
BrandBourns
TWD46.80
個 (在毎卷:400)
單位
- - - - - - 12.8 x 7.5 x 9mm Surface Mount Solder - 9mm - 12.8mm 7.5mm
RS庫存編號 715-6911
製造零件編號DA103C
TWD58.00
單位
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
RS庫存編號 106-8579
製造零件編號DA102C
TWD50.90
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 168-3246
製造零件編號749010310
TWD172.00
單位
- - - - - - 12.7 x 8.67 x 4mm Surface Mount Solder - 4mm - 12.7mm 8.67mm
RS庫存編號 210-6374
製造零件編號E187B
BrandOEP
TWD545.00
單位
3kΩ 250 Ω, 500 Ω 80Ω 5mW - 46Ω 27 x 20 x 21mm PCB Mount - - 21mm - 27mm 20mm
RS庫存編號 123-7200
製造零件編號A187A12C
BrandOEP
TWD1,220.00
單位
600Ω 600Ω 49.8Ω - - 48.5Ω 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
RS庫存編號 168-3206
製造零件編號749196517
TWD393.00
單位
- - 36mΩ - 2.3A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS庫存編號 172-8110
製造零件編號LM-NP-1001-B1L
BrandBourns
TWD77.70
個 (以毎袋:28)
單位
- - - - - - 17.7 x 17.7 x 12.6mm Chassis Mount - - 12.6mm - 17.7mm 17.7mm
RS庫存編號 123-7198
製造零件編號A187A10C
BrandOEP
TWD1,252.00
單位
140kΩ 1 + 1kΩ 3.2kΩ - - 314Ω 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
RS庫存編號 123-7216
製造零件編號J30A14C
BrandOEP
TWD1,866.00
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 168-3329
製造零件編號749196528
TWD393.00
單位
- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
RS庫存編號 106-8578
製造零件編號DA101C
TWD50.90
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 168-3325
製造零件編號749196148
TWD299.00
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 123-7204
製造零件編號A187A16C/1
BrandOEP
TWD1,446.00
單位
30 Ω, 100 Ω 10 kΩ, 49 kΩ 19Ω - - 647Ω 29.4 x 25 x 24.2mm Through Hole PC Pin 56g 24.2mm - 29.4mm 25mm
RS庫存編號 123-7227
製造零件編號Z1681E
BrandOEP
TWD354.00
單位
150Ω 300Ω 29.5Ω 2mW - 52.2Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm