Transformers Audio & Signal

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Transformers for Audio Applications

Audio transformers can used to step up or step down a signal voltage, increase or decrease the impedance of a circuit, convert a circuit from unbalanced to balanced and vice versa, block DC current in a circuit while allowing AC current to flow, or electrically isolate one audio device from another. Learn More

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Description Datasheet Availability Pricing (CRC) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Type
Termination Style
Frequency Range
Inductance
Primary Impedance
Secondary Impedance
Isolation Voltage
Minimum Operating Temperature
Maximum Operating Temperature
Number of Channels
Application
Package / Case
Length
Width
Height
Series
Qualification
Packaging
Coilcraft Audio Transformers / Signal Transformers 1812WBT SMT Wideband 1:1 4-200 MHz
Datasheet
3 418In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 600

RF Transformers SMD/SMT 4 MHz to 200 MHz 1.25 uH 50 V - 40 C + 85 C Single Wideband 1812 (4532 metric) 4.52 mm 3.81 mm 3.43 mm 1812WBT Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers FA2470 Flyback For STMicro STLC3075
Datasheet
806In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 450

Flyback Transformers Flyback SMD/SMT 10 kHz - 40 C + 85 C Single STLC3075 STLC3085 POTS Interface 10.92 mm 8.6 mm 9.02 mm FA2470 Reel, Cut Tape, MouseReel
iNRCORE Audio Transformers / Signal Transformers
Datasheet
39In Stock
Min.: 1
Mult.: 1

High Speed SMD/SMT 3.75 uH - 55 C + 125 C 2 Channel 12.7 mm 11.05 mm 4.57 mm Tube
Coilcraft Audio Transformers / Signal Transformers PoE Plus 850uH DCR=0.24mOhms 1.9A
Datasheet
840In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 300

PoE Transformers Isolated SMD/SMT 100 kHz 850 uH 1.5 kV - 40 C + 85 C Single 15.75 mm 14.22 mm 10.8 mm HPX2126L Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers FA2805 SMT Flyback For Si341, Si3402
Datasheet
1 125In Stock
875Expected 9/21/2026
MouseReel Available
Min.: 1
Mult.: 1
: 175

Flyback Transformers Flyback SMD/SMT 200 kHz 40 uH 1.5 kV - 40 C + 85 C Single Si3402 PD Controller 13.46 mm 13 mm 12.7 mm FA2805 Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 5.0 V 6 A
Datasheet
588In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 175

PoE Transformers Flyback SMD/SMT 250 kHz - 40 C + 125 C Single PoE 21 mm 20.57 mm 11.43 mm POE300F Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers PWB Wideband RF 1:4 0.150-500 MHz
Datasheet
1 048In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

RF Transformers SMD/SMT 150 kHz to 500 MHz - 40 C + 85 C Single Wideband 6.77 mm 6.48 mm 4.45 mm PWB Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers WBC SMT Mini Wdebnd 1:4 0.500-1000 MHz
Datasheet
780In Stock
750On Order
MouseReel Available
Min.: 1
Mult.: 1
: 750

RF Transformers SMD/SMT 500 kHz to 1 GHz 20 uH 300 V - 40 C + 85 C Wideband 4.45 mm x 4.19 mm x 3.05 mm 4.45 mm 4.19 mm 3.05 mm WBC Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers WBC SMT Mini Wdebnd 1:9 0.300-500 MHz
Datasheet
645In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 750

RF Transformers SMD/SMT 300 kHz to 500 MHz 81 uH 300 V - 40 C + 85 C Wideband 4.45 mm x 4.19 mm x 3.05 mm 4.45 mm 4.19 mm 3.05 mm WBC Reel, Cut Tape, MouseReel
iNRCORE Audio Transformers / Signal Transformers XFMR LAN 10/100/1000 BASE-T
Datasheet
29In Stock
Min.: 1
Mult.: 1
Ethernet Transformers SMD/SMT 350 uH 1500 Vrms - 55 C + 125 C 2 Channel 27.94 mm 10.54 mm 8.64 mm Tube
Coilcraft Audio Transformers / Signal Transformers GA3460 for LT3751 500V 50A
Datasheet
210In Stock
1 824On Order
Min.: 1
Mult.: 1

Flyback Transformers Flyback SMD/SMT 50 kHz 2.5 uH 1.5 kV - 40 C + 125 C Single LT3751 Capacitor Charger Controller 26.75 mm 26 mm 14 mm GA3460 Tray
Coilcraft Audio Transformers / Signal Transformers PWB Wideband RF 1:1 0.0035-125 MHz
Datasheet
3 518In Stock
2 750Expected 12/14/2026
MouseReel Available
Min.: 1
Mult.: 1
: 250

RF Transformers SMD/SMT 3.5 kHz to 125 MHz - 40 C + 85 C Single Wideband 6.77 mm 6.48 mm 4.45 mm PWB Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers 1000Base-T SMD PoE 350uH .65Ohms 1-Port
Datasheet
447In Stock
Min.: 1
Mult.: 1
: 300

LAN Transformers Module SMD/SMT 1 MHz to 100 MHz 350 uH 1.5 kV 0 C + 70 C Single 1000 Base-T PoE 17.5 mm 15.24 mm 5.72 mm Reel, Cut Tape
Pulse Electronics Audio Transformers / Signal Transformers 10/100Base-T SMD 1-Port
Datasheet
417In Stock
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 10/100 Base-T 25.4 mm 12.83 mm 6.22 mm Tube


Pulse Electronics Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .65Ohms 1-Port
Datasheet
944In Stock
Min.: 1
Mult.: 1
: 600

LAN Transformers Module SMD/SMT 1 MHz to 125 MHz - 40 C + 85 C Single 10/100 Base-T PoE 12.7 mm 9.09 mm 5.99 mm HX Reel, Cut Tape
Pulse Electronics Audio Transformers / Signal Transformers 100Base-T SMD NonPoE .6Ohms 1-Port
Datasheet
1 829In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 160

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 1.5 kV 0 C + 70 C Single 10/100 Base-T 25.4 mm 12.95 mm 9.4 mm Reel, Cut Tape, MouseReel
HALO Electronics Audio Transformers / Signal Transformers SMD ISOLATION MODULE GigE 2-Port Gigabit
Datasheet
615In Stock
Min.: 1
Mult.: 1

LAN Isolation Transformers Module SMD/SMT - 40 C + 85 C Gigabit Interface 27.94 mm 7.62 mm 8.64 mm TG1G Tube


Pulse Electronics Audio Transformers / Signal Transformers BALUN RF SGL RAC 1:1CT 1 713In Stock
Min.: 1
Mult.: 1
: 2 000

RF Transformers SMD/SMT - 40 C + 85 C Single Wideband 3.81 mm 3.81 mm 2.79 mm CX Reel, Cut Tape
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 1-Port
Datasheet
636In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 700

LAN Transformers Module SMD/SMT 1 MHz to 100 MHz 1.5 kV 0 C + 70 C Single 1000 Base-T 19.81 mm 19.56 mm 2.54 mm Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers 1000Base-T SMD PoE+ 350uH .3Ohms 1-Port
Datasheet
286In Stock
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 1 MHz to 125 MHz - 40 C + 125 C Single 1000 Base-T 18.2 mm 16 mm 6.6 mm Tube
Pulse Electronics Audio Transformers / Signal Transformers 1000Base-T PoE SMD 1-Port 325uH/350uH
Datasheet
602In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 300

LAN Transformers SMD/SMT 1 MHz to 125 MHz - 40 C + 85 C Quad 1000 Base-T PoE 17.5 mm 15.24 mm 5.72 mm LAN 10/100/1000 Base-T Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Por
Datasheet
1 098In Stock
Min.: 1
Mult.: 1

ISDN Transformers Module SMD/SMT 1 MHz to 100 MHz 1.5 kV 0 C + 70 C Dual T1/CEPT/ISDN-Pri 12.83 mm 7.11 mm 6.22 mm Tube
Pulse Electronics Audio Transformers / Signal Transformers Wideband RF 75 Ohm 1:1CT 50-450MHz SMD
Datasheet
3 509In Stock
Min.: 1
Mult.: 1

RF Transformers SMD/SMT 50 kHz to 450 MHz 75 Ohms - 40 C + 85 C Single Wideband 3.81 mm 3.81 mm 2.79 mm CX20xxNL/LNL Tray
Pulse Electronics Audio Transformers / Signal Transformers XFMR,RF,SGL,RAC,1:4CT, T&R NPB
Datasheet
1 561In Stock
Min.: 1
Mult.: 1
: 2 000
RF Transformers SMD/SMT - 40 C + 85 C 3.81 mm 3.81 mm 2.79 mm Reel, Cut Tape
Pulse Electronics Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .65Ohms 2-Port
Datasheet
233In Stock
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 1 MHz to 100 MHz 350 uH 1.5 kV 0 C + 70 C Dual 100 Base-TX 15.11 mm 13.16 mm 6.12 mm H2009 Tube