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
101F AUDIO XFMR 600CT / 600CT TH Hammond Manufacturing	285 In Stock 1,114 Factory	1 : ₹1,993.39000 Bulk	101	Bulk	Active	1:1	600CT	600CT	44Ohm	52Ohm	Miniature Epoxy Potted	200Hz ~ 100kHz	±0.5dB	100VRMS	-	-	100mW	-40°C ~ 85°C	-	Through Hole	0.450" L x 0.450" W (11.43mm x 11.43mm)	0.480" (12.19mm)	PC Pin
101D AUDIO XFMR 300CT / 600CT TH Hammond Manufacturing	255 In Stock 492 Factory	1 : ₹2,013.91000 Bulk	101	Bulk	Active	-	300CT	600CT	20.4Ohm	54Ohm	Miniature Epoxy Potted	200Hz ~ 100kHz	±0.5dB	-	-	-	100mW	-	-	Through Hole	0.450" L x 0.450" W (11.43mm x 11.43mm)	0.480" (12.19mm)	PC Pin
101H AUDIO XFMR 1.2KCT / 600CT TH Hammond Manufacturing	8 In Stock 148 Factory	1 : ₹1,993.39000 Bulk	101	Bulk	Active	-	1.2kCT	600CT	80Ohm	53Ohm	Miniature Epoxy Potted	200Hz ~ 100kHz	±0.5dB	-	-	-	100mW	-	-	Through Hole	0.450" L x 0.450" W (11.43mm x 11.43mm)	0.480" (12.19mm)	PC Pin
101P AUDIO XFMR 300CT / 50CT TH Hammond Manufacturing	56 In Stock 16 Factory	1 : ₹1,994.25000 Bulk	101	Bulk	Active	-	300CT	50CT	20.4Ohm	4.8Ohm	Miniature Epoxy Potted	200Hz ~ 100kHz	±0.5dB	-	-	-	100mW	-	-	Through Hole	0.450" L x 0.450" W (11.43mm x 11.43mm)	0.480" (12.19mm)	PC Pin
101J AUDIO XFMR 2.5KCT / 600CT TH Hammond Manufacturing	3 In Stock 29 Factory	1 : ₹1,994.25000 Bulk	101	Bulk	Active	-	2.5kCT	600CT	150Ohm	54Ohm	Miniature Epoxy Potted	200Hz ~ 100kHz	±0.5dB	-	-	-	100mW	-	-	Through Hole	0.450" L x 0.450" W (11.43mm x 11.43mm)	0.480" (12.19mm)	PC Pin
101R AUDIO XFMR 600CT / 50CT TH Hammond Manufacturing	3 In Stock 25 Factory	1 : ₹1,994.25000 Bulk	101	Bulk	Active	-	600CT	50CT	44Ohm	4.7Ohm	Miniature Epoxy Potted	200Hz ~ 100kHz	±0.5dB	-	-	-	100mW	-	-	Through Hole	0.450" L x 0.450" W (11.43mm x 11.43mm)	0.480" (12.19mm)	PC Pin
101V AUDIO XFMR 2.5KCT / 50CT TH Hammond Manufacturing	1 In Stock 183 Factory	1 : ₹1,994.25000 Bulk	101	Bulk	Active	-	2.5kCT	50CT	150.7Ohm	4.9Ohm	Miniature Epoxy Potted	200Hz ~ 100kHz	±0.5dB	-	-	-	100mW	-	-	Through Hole	0.450" L x 0.450" W (11.43mm x 11.43mm)	0.480" (12.19mm)	PC Pin
101V-BULK TRANSFORMER Hammond Manufacturing	0 In Stock	Active	101	Bulk	Active	-	-	50CT	150.7Ohm	4.9Ohm	General Purpose	200Hz ~ 100kHz	±0.5dB	-	-	-	100mW	-	-	Through Hole	0.450" L x 0.450" W (11.43mm x 11.43mm)	0.480" (12.19mm)	PC Pin

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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.