Telecom Transformers

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Part	Manufacturer	Transformer Type	Mounting Feature	Manufacturer Series	Approvals (V)	Terminal Finish	Impedance (Primary)	Impedance (Secondary)	No. of Winding (Primary)	Maximum Pulse Rise Time	Isolation Voltage	Insertion Loss	Inductance (Primary)	Packing Method	Minimum ET Product	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-65812NL	Pulse Electronics	TELECOM TRANSFORMER	SURFACE MOUNT		UL	Tin/Silver (Sn/Ag) - hot dipped			1	25 ns	2000 V	3 dB	2500 uH	TUBE	20 V-us		1	Other Transformers	L12.06XB10.16XH8.64 (mm)	70 Cel	SIGNAL	0 Cel	8.64 mm	10.16 mm		TURNS RATIO: 1:1, HEIGHT INCLUDES TERMINAL ALSO		100 KHz	12.06 mm	1:1	55000 KHz
PE-65870NL	Pulse Electronics	TELECOM TRANSFORMER	SURFACE MOUNT		UL	Matte Tin (Sn)								TUBE					L12.83XB7.11XH6.22 (mm)	70 Cel		0 Cel	6.22 mm	7.11 mm		HEIGHT DIM INCLUDES TERMINAL ALSO, TURNS RATIO: 1CT:1.15CT; 1CT:1.15CT	e3		12.83 mm
T1231	Pulse Electronics	TELECOM TRANSFORMER	SURFACE MOUNT	T1231	BABT									TUBE					L28.57XB16.26XH5.84 (mm)	85 Cel		-40 Cel	5.84 mm	16.26 mm		TURNS RATIO: 1:2.4;1:1 HEIGHT DIM INCLUDES TERMINAL ALSO			28.57 mm
TG04-1505NSLF	Halo Electronics	TELECOM TRANSFORMER	SURFACE MOUNT		CUL; EN; UL															85 Cel		-40 Cel	5.08 mm	7.11 mm		HEIGHT DIM INCLUDE TERMINAL ALSO			8.13 mm
TTC-5036	Tamura	TELECOM TRANSFORMER	SURFACE MOUNT		EN, UL		600 OHMS	287 OHMS												85 Cel		-20 Cel	7.6 mm	9.6 mm		TURNS RATIO: 1:1		.2 KHz	12.5 mm		4 KHz
TTPC-2	Stancor Products	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED				600 OHMS	600 OHMS								0 mA				105 Cel			12.45 mm	16.51 mm				.3 KHz	19.84 mm		3.5 KHz
TTPC-8	Stancor Products	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED				600 OHMS CT	600 OHMS CT											L19.84XB16.51XH18.8 (mm)	105 Cel			18.8 mm	16.51 mm				.3 KHz	19.84 mm		3.5 KHz
B1056	Pulse Electronics	TELECOM TRANSFORMER	SURFACE MOUNT	B1056										TRAY		100 mA			17.65mm X 13.46mm X 12.32mm	85 Cel		-40 Cel	12.32 mm	13.46 mm		LENGTH DIMENSION INCLUDES TERMINAL ALSO; TURNS RATIO: 1CT:3CS			17.65 mm
EMIT-1200L	Sumida	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED	MT	UL; BABT		600 OHMS	560 OHMS											18.3mm X 18.3mm X 12.6mm				12.6 mm	18.3 mm					18.3 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
TG07-0356NSRL	Halo Electronics	TELECOM TRANSFORMER	SURFACE MOUNT		EN, UL															85 Cel		-40 Cel	5.08 mm	7.112 mm		TURNS RATIO: 1:2CT			8.128 mm
TGSP-S024NXRL	Halo Electronics	TELECOM TRANSFORMER	SURFACE MOUNT																L27.94XB12.19XH5.84 (mm)	85 Cel		-40 Cel	5.84 mm	12.19 mm					27.94 mm
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
TTPC-6	Stancor Products	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED				600 OHMS	600 OHMS CT								90 mA				105 Cel			19.05 mm	16.51 mm				.3 KHz	20.7 mm		3.5 KHz
AS7787-A	Coilcraft	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED	AS7787-A	UL														13.97mm X 13.97mm X 12.7mm	85 Cel		-40 Cel	12.7 mm	13.97 mm		DESIGNED TO USE WITH ANLG DVC AD20MSP910/918 CO/CPE, TURNS RATIO: 1:1			13.97 mm
LM-LP-1001L	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
SM-LP-5002E	Bourns	TELECOM TRANSFORMER	SURFACE MOUNT		UL	TIN SILVER	600 OHMS							TAPE & REEL					L12.5XB9.6XH7.36 (mm)	85 Cel		-20 Cel	7.36 mm	9.6 mm		TURNS RATIO: 1:1, HEIGHT DIMENSIONS INCLUDE TERMINALS ALSO	e2	.2 KHz	12.5 mm		4 KHz
X8390-A	Coilcraft	TELECOM TRANSFORMER	SURFACE MOUNT	X8390-A	UL									TAPE & REEL					L17.75XB13.46XH12.7 (mm)	85 Cel		-40 Cel	12.7 mm	13.46 mm		LENGTH AND HEIGHT DIM INCLUDES TERMINALS ALSO, TURNS RATIO: 1:1			17.75 mm
B1060	Weitron Technology	TELECOM TRANSFORMER		B1060
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-NP-1003L	Bourns	TELECOM TRANSFORMER	THROUGH HOLE MOUNTED		UL		600 OHMS	600 OHMS	1			1.5 dB	2800000 uH				2	Other Transformers	L17.7XB17.7XH12.6 (mm)	60 Cel	SIGNAL	-10 Cel	12.6 mm	17.7 mm	66 ohm	TURNS RATIO: 1:1		.2 KHz	17.7 mm	1:1	3.5 KHz

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.