THROUGH HOLE MOUNTED Telecom Transformers 11

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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	Inductance (Primary)	Packing Method	Maximum DC Unbalance Current	No. of Winding (Secondary)	Sub-Category	Dimensions	Maximum Operating Temperature	Application	Minimum Operating Temperature	Height	Width	Load Resistance	Additional Features	JESD-609 Code	Minimum Operating Frequency	Length	Turns Ratio (Np:Ns)	Maximum Operating Frequency
PE-65415	Pulse Electronics	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED	PE-65415	UL							TUBE				L12.7XB8.89XH6.35 (mm)	70 Cel		0 Cel	6.35 mm	8.89 mm		TURNS RATIO: 1CT:2CT			12.7 mm
PE-65389NL	Pulse Electronics	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED		UL				1	1500 V	1500 uH	TUBE		1	Other Transformers	L12.7XB8.89XH6.35 (mm)	70 Cel	SIGNAL	0 Cel	6.35 mm	8.89 mm	.9 ohm	TURNS RATIO: 1:1/1.26			12.7 mm	1:1/1.26
PE-65415NL	Pulse Electronics	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED		UL							TUBE				L12.7XB8.89XH6.35 (mm)	70 Cel		0 Cel	6.35 mm	8.89 mm		TURNS RATIO: 1CT:2CT			12.7 mm
MET-31	Tamura	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED			Tin (Sn)	600 OHMS CT	600 OHMS CT									85 Cel		-20 Cel	11.8 mm	7.87 mm		TURNS RATIO : 1:1	e3	.3 KHz	10.4 mm		100 KHz
MET-42	Tamura	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED				150 OHMS										85 Cel		-20 Cel	11.8 mm	7.87 mm		TURNS RATIO: 3.54:1		.3 KHz	10.4 mm		100 KHz
MET-59	Tamura	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED				600 OHMS	600 OHMS CT					3 mA			L10.4XB7.87XH11.8 (mm)				11.8 mm	7.87 mm				.3 KHz	10.4 mm		100 KHz
TTC-02	Tamura	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED		CSA, UL		600 OHMS													12.4 mm	16.5 mm				.3 KHz	20.3 mm		3.5 KHz
TTC-105-1	Tamura	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED		CSA, UL		600 OHMS													19 mm	16 mm		TURNS RATIO: 1:1		.66 KHz	20.7 mm		3.5 KHz
TTC-5020	Tamura	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED		CSA, UL		600 OHMS													13.8 mm	22.5 mm		TURNS RATIO: 1:1		.6 KHz	23.1 mm		3.5 KHz
C2202	TE Connectivity	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED	C2202	BABT; CSA; IEC; UL											L13.97XB13.97XH12.7 (mm)				12.7 mm	13.97 mm		BREADTH DIMENSION INCLUDES TERMINAL ALSO; TURNS RATIO: 1:1			13.97 mm
LM-LP-1004L	Bourns	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED		UL		600 OHMS	600 OHMS								L17.7XB17.7XH12.6 (mm)	60 Cel		-10 Cel	12.6 mm	17.7 mm		TURNS RATIO: 1:1		.2 KHz	17.7 mm		3.5 KHz

Telecom Transformers

Telecom transformers are a type of transformer used in telecommunications equipment to isolate and match impedance between different parts of a circuit. They are commonly used in applications such as modems, routers, switches, and telephone systems.

The primary function of a telecom transformer is to isolate the AC signal from the equipment to prevent noise and interference from other components in the circuit. Telecom transformers are also used to match impedance between the input and output stages of the circuit to ensure maximum power transfer and signal integrity.

Telecom transformers are typically designed to operate at low frequencies, ranging from a few Hz to several kHz, depending on the specific application. They are designed to handle low power levels and have low losses. The design of a telecom transformer is usually optimized for a specific frequency range and bandwidth.

Telecom transformers are typically constructed with a magnetic core made of ferrite or powdered iron, and one or more coils wound around the core. The coils are usually made of copper wire with a thin insulating layer. The number of turns and the size of the wire are determined by the required impedance transformation and the frequency range of the circuit.