THROUGH HOLE MOUNTED Audio Transformers 25

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Part	Manufacturer	Transformer Type	Mounting Feature	Manufacturer Series	Approvals (V)	Terminal Finish	Impedance (Primary)	Impedance (Secondary)	No. of Winding (Primary)	Isolation Voltage	Insertion Loss	Maximum DC Unbalance Current	No. of Winding (Secondary)	Sub-Category	Dimensions	Maximum Operating Temperature	Application	Minimum Operating Temperature	Height	Width	Diameter	Load Resistance	Additional Features	JESD-609 Code	Minimum Operating Frequency	Length	Turns Ratio (Np:Ns)	Maximum Operating Frequency
SP-70	Triad Magnetics	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				600 OHMS	600 OHMS	1	1000 V		3000 mA	1	Other Transformers	L10.41XB7.87XH11.81 (mm)	85 Cel	SIGNAL	-40 Cel	11.81 mm	7.87 mm		92 ohm			.3 KHz	10.41 mm	1:1	100 KHz
L-8345	Pico Electronics	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED		MIL-PRF-27	Tin/Lead (Sn/Pb)	500 OHMS CT	50 OHMS CT							D12.7XH8.9 (mm)	130 Cel	AUDIO	-55 Cel			12.7 mm			e0	.3 KHz	8.9 mm		75 KHz
TY-145P	Triad Magnetics	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				600 OHMS CT	600 OHMS CT	1		1.5 dB	15 mA	1		L20.57XB14.99XH15.75 (mm)	105 Cel	INPUT	0 Cel	15.75 mm	14.99 mm		58 ohm			.2 KHz	20.57 mm	1:1	15 KHz
108E	Hammond Manufacturing	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				600 OHMS CT	3.2 OHMS								85 Cel	AUDIO		19.558 mm	19.558 mm					.3 KHz	26.162 mm		50 KHz
MET-46-T	Triad Magnetics	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				600 OHMS	600 OHMS							L10.41XB7.87XH11.81 (mm)				11.81 mm	7.87 mm			TURNS RATIO:1:1		.3 KHz	10.41 mm		3.5 KHz
108K	Hammond Manufacturing	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				1500 OHMS CT	600 OHMS CT								85 Cel	AUDIO		19.558 mm	19.558 mm					.3 KHz	26.162 mm		50 KHz
SP-67	Triad Magnetics	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED			GOLD OVER NICKEL	600 OHMS CT	600 OHMS CT	1	1000 V			1		L10.41XB7.87XH11.81 (mm)		SIGNAL		11.81 mm	7.87 mm		92 ohm		e4	.3 KHz	10.41 mm	1:1	100 KHz
107V	Hammond Manufacturing	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				25000 OHMS CT	600 OHMS CT								105 Cel	AUDIO	-40 Cel	16.002 mm	14.8844 mm					.3 KHz	16.002 mm		50 KHz
109K	Hammond Manufacturing	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				1500 OHMS CT	600 OHMS CT								85 Cel	AUDIO		23.368 mm	23.622 mm					.3 KHz	33.401 mm		50 KHz
106EE	Hammond Manufacturing	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				600 OHMS CT	600 OHMS CT									INPUT		22.352 mm	22.352 mm						27.432 mm
108G	Hammond Manufacturing	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				600 OHMS CT	250 OHMS CT								85 Cel	AUDIO		19.558 mm	19.558 mm					.3 KHz	26.162 mm		50 KHz
SP-13	Triad Magnetics	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED			Gold (Au) - with Nickel (Ni) barrier	25000 OHMS CT	1000 OHMS CT	1	1000 V			1		L10.41XB7.87XH11.81 (mm)		SIGNAL		11.81 mm	7.87 mm		115 ohm		e4	.3 KHz	10.41 mm	5:1	100 KHz
TY-141P	Triad Magnetics	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				10000 OHMS CT	10000 OHMS CT	1		1.5 dB	4 mA	1		L20.57XB14.99XH15.75 (mm)	105 Cel	INPUT	0 Cel	15.75 mm	14.99 mm		107 ohm			.2 KHz	20.57 mm	1:1	15 KHz
Z1604	Oep Walters Group Holdings	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				600 OHMS	600 OHMS							L18.0XB18.0XH12.6 (mm)	75 Cel		-20 Cel	12.6 mm	18 mm					.06 KHz	18 mm		25 KHz
104L	Hammond Manufacturing	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				25000 OHMS	600 OHMS CT									INTERSTAGE
107J	Hammond Manufacturing	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				1000 OHMS CT	600 OHMS CT								105 Cel	AUDIO	-40 Cel	16.002 mm	14.8844 mm					.3 KHz	16.002 mm		50 KHz
108H	Hammond Manufacturing	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				600 OHMS CT	600 OHMS CT								85 Cel	AUDIO		19.558 mm	19.558 mm					.3 KHz	26.162 mm		50 KHz
109G	Hammond Manufacturing	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				600 OHMS CT	250 OHMS CT								85 Cel	AUDIO		23.368 mm	23.622 mm					.3 KHz	33.401 mm		50 KHz
109J	Hammond Manufacturing	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				1000 OHMS CT	600 OHMS CT								85 Cel	AUDIO		23.368 mm	23.622 mm					.3 KHz	33.401 mm		50 KHz
148T	Hammond Manufacturing	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				500 OHMS CT	3.2 OHMS									OUTPUT		17.526 mm	17.272 mm					.2 KHz	20.828 mm		15 KHz
1650PP	Hammond Manufacturing	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				6600 OHMS CT	16 OHMS									AUDIO		107.95 mm	84.07 mm					.03 KHz	98.55 mm		30 KHz
MG-25	Tamura	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED	MG			600 OHMS CT	12 OHMS							L10.4XB7.87XH11.8 (mm)				11.8 mm	7.87 mm					.1 KHz	10.4 mm		100 KHz
TY-146P	Triad Magnetics	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED				600 OHMS CT	600 OHMS CT	2		1.5 dB		2		L34.8XB28.45XH28.45 (mm)	105 Cel	INPUT	0 Cel	28.45 mm	28.45 mm					.2 KHz	34.8 mm	1:1	15 KHz
SP-51	Triad Magnetics	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED			Gold (Au) - with Nickel (Ni) barrier	900 OHMS CT	600 OHMS	1	1000 V		4 mA	1	Other Transformers	L10.41XB7.87XH11.81 (mm)		SIGNAL		11.81 mm	7.87 mm		96 ohm		e4	.3 KHz	10.41 mm	1.22:1	100 KHz
L-8730	Pico Electronics	GENERAL PURPOSE AUDIO TRANSFORMER	THROUGH HOLE MOUNTED		MIL-PRF-27	Tin/Lead (Sn/Pb)	30000 OHMS CT	1200 OHMS CT							D12.7XH8.9 (mm)	130 Cel	AUDIO	-55 Cel			12.7 mm			e0	.3 KHz	8.9 mm		75 KHz

Audio Transformers

Audio transformers are electronic components used in audio systems to provide signal isolation, impedance matching, and voltage level adjustment. They convert audio signals from one impedance level to another, allowing for efficient transmission and reception of audio signals. Audio transformers use electromagnetic induction to transfer the audio signal from one circuit to another, and they consist of two or more coils of wire wound around a magnetic core.

Audio transformers provide electrical isolation between input and output circuits, eliminate ground loop hum and other interference, match the impedance of input and output circuits, and adjust the voltage level of the audio signal. They have a frequency response that matches the frequency range of the audio signal, ensuring accurate and clear reproduction of sound. Audio transformers are used in recording studios, broadcast systems, musical instrument amplifiers, and telecommunication systems.