Audio Transformers

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Turns Ratio - Primary:Secondary	Impedance - Primary (Ohms)	Impedance - Secondary (Ohms)	DC Resistance (DCR) - Primary	DC Resistance (DCR) - Secondary	Transformer Type	Frequency Range	Frequency Response	Voltage - Isolation	Insertion Loss	Return Loss	Power Level	Operating Temperature	Approval Agency	Mounting Type	Size / Dimension	Height - Seated (Max)	Termination Style

#458PT-1566=P3 AUDIO XFMR SMD Murata Electronics	477 In Stock	1 : ¥13.67000 Cut Tape (CT) 1,000 : ¥7.18685 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Surface Mount	0.272" L x 0.150" W (6.90mm x 3.80mm)	0.173" (4.40mm)	Gull Wing
#458PT-1720=P3 AUDIO XFMR 75 / 50 SMD Murata Electronics	0 In Stock Check Lead Time	1,000 : ¥7.00401 Tape & Reel (TR)	-	Tape & Reel (TR)	Active	2:5	75	50	-	-	-	-	-	-	-	-	-	-40°C ~ 85°C	-	Surface Mount	0.256" L x 0.244" W (6.50mm x 6.20mm)	0.173" (4.40mm)	Flat Lead
#458PT-2078=P3 AUDIO XFMR 75 SMD Murata Electronics	0 In Stock Check Lead Time	1,000 : ¥6.70484 Tape & Reel (TR)	-	Tape & Reel (TR)	Active	1:4	75	-	-	-	-	-	-	-	-	-	-	-40°C ~ 85°C	-	Surface Mount	0.256" L x 0.244" W (6.50mm x 6.20mm)	0.173" (4.40mm)	Flat Lead
#458PT-2002=P3 AUDIO XFMR Murata Electronics	0 In Stock Check Lead Time	1,000 : ¥7.71203 Tape & Reel (TR)	*	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

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Audio Transformers

Like most other transformer products, audio transformers consist of two or more magnetically coupled coils of wire, usually wound around a magnetic core. They are distinguished from other transformer types by being adapted and characterized for use at frequencies across all or a significant portion of the human audible range spanning roughly 20 Hz to 20 kHz, and are used for isolation and transformation of information in analog format, as contrasted with transformers designed for transmission of information encoded using a digital signaling protocol. Examples include output transformers for vacuum tube amplifiers and voice coupling transformers for traditional telecom applications.