DATACOM TRANSFORMER Pulse & Datacom Transformers 101

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Part	Manufacturer	Transformer Type	Mounting Feature	Manufacturer Series	Approvals (V)	Terminal Finish	No. of Functions	No. of Winding (Primary)	Isolation Voltage	Insertion Loss	Inductance (Primary)	Packing Method	Output Current-1	Output Current-2	Maximum DC Unbalance Current	No. of Winding (Secondary)	Sub-Category	Dimensions	Maximum Operating Temperature	Application	Output Voltage-1	Minimum Operating Temperature	Height	Width	Load Resistance	Additional Features	Minimum Input Voltage (V)	JESD-609 Code	Minimum Operating Frequency	Length	Turns Ratio (Np:Ns)	Maximum Operating Frequency	Maximum Input Voltage (V)
H7028NL	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT				4		1500 V		120 uH							L13.72XB12.19XH5.71 (mm)	70 Cel	GENERAL PURPOSE		0 Cel	5.71 mm	12.19 mm						13.72 mm	1:1; 1:1
749020023	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT		UL	TIN OVER NICKEL	4		1500 V	1 dB	350 uH	TAPE & REEL						L15.11XB7.1XH4.00 (mm)	85 Cel	LAN; 1000 BASE-T		-40 Cel	4 mm	7.1 mm		HEIGHT DIMENSION INCLUDES TERMINALS ALSO		e3		15.11 mm	1:1; 1:1
7491192912	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT		AEC-Q200		1	2	1500 V		210 uH	TR, EMBOSSED PLASTIC, 13 INCH	.58 A			2	Other Transformers	L16.3XB12.0XH7.4 (mm)	125 Cel	ETHERNET	12 V	-40 Cel	7.4 mm	12 mm			36			16.3 mm	12:1.5:1:3.5		57
7491199212	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT				1	2	1500 V		127 uH	TR, EMBOSSED PLASTIC, 13 INCH	.55 A			2	Other Transformers	L17.75XB13.5XH12.5 (mm)	125 Cel	ETHERNET	12 V	-40 Cel	12.5 mm	13 mm			36		200 KHz	13.5 mm	4.8:1.4:1.4	500 KHz	57
PE-5760NL	Pulse Electronics	DATACOM TRANSFORMER	THROUGH HOLE MOUNTED				1		500 V		5000 uH							L12.7XB8.89XH6.35 (mm)		GENERAL PURPOSE			6.35 mm	8.89 mm						12.7 mm	1:1:1
750310988	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT	750310988			1	1	1500 V		14 uH	TAPE & REEL		.85 A	15000 mA	1		L32.31XB27.03XH13.69 (mm)	125 Cel	GENERAL PURPOSE	48 V	-40 Cel	13.69 mm	27.03 mm	.52 ohm	LENGTH DIM INCLUDES TERMINALS ALSO				32.31 mm	4.42:1		12
750311305	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT				1	2	1500 V		50 uH	TAPE & REEL	1 A		2800 mA	1	Other Transformers	L15.24XB13.34XH11.43 (mm)	125 Cel	GENERAL PURPOSE	12 V	-40 Cel	11.43 mm	13.34 mm	.028 ohm	LENGTH DIM INCLUDES TERMINALS ALSO				15.24 mm	3:1		36
750311422	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT				1	2	1500 V		50 uH	TAPE & REEL	4 A		3300 mA	1		L17.75XB13.46XH12.7 (mm)	125 Cel	GENERAL PURPOSE	5 V	-40 Cel	12.7 mm	13.46 mm		LENGTH DIM INCLUDES TERMINALS ALSO				17.75 mm	5:1		36
750311423	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT	750311423		Tin (Sn) - with Nickel (Ni) barrier	1	2	1500 V		50 uH	TAPE & REEL	4 A		3850 mA	1		L17.75XB13.46XH12.7 (mm)	125 Cel	GENERAL PURPOSE	5 V	-40 Cel	12.7 mm	13.46 mm		LENGTH DIM INCLUDES TERMINALS ALSO		e3		17.75 mm	4:1		36
750311424	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT	750311424		Tin (Sn) - with Nickel (Ni) barrier	1	2	1500 V		100 uH	TAPE & REEL	1 A		2400 mA	1		17.75mm X 13.46mm X 12.7mm	125 Cel	GENERAL PURPOSE	12 V	-40 Cel	12.7 mm	13.46 mm		LENGTH DIM INCLUDES TERMINALS ALSO		e3		17.75 mm	3:1		36
750311456	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT	750311456		TIN NICKEL	1	2	2500 V		100 uH	TAPE & REEL	1 A		2400 mA	1		L17.75XB13.46XH12.7 (mm)	125 Cel	GENERAL PURPOSE	12 V	-40 Cel	12.7 mm	13.46 mm		LENGTH DIM INCLUDES TERMINALS ALSO		e2		17.75 mm	3:1		36
750311457	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT	750311457		Tin (Sn) - with Nickel (Ni) barrier	1	2	2500 V		50 uH	TAPE & REEL	4 A		3700 mA	1	Other Transformers	L17.75XB13.46XH12.7 (mm)	125 Cel	GENERAL PURPOSE	5 V	-40 Cel	12.7 mm	13.46 mm	.012 ohm	LENGTH DIM INCLUDES TERMINALS ALSO		e3		17.75 mm	4:1		36
750311589	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT				1		1500 V		6 uH	TAPE & REEL	9 A		18000 mA		Other Transformers	L32.31XB27.03XH13.69 (mm)	85 Cel	GENERAL PURPOSE	5 V	-40 Cel	13.69 mm	27.03 mm		LENGTH DIM INCLUDES TERMINALS ALSO	20			32.31 mm	3:1		48
750311590	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT				1		1500 V		8 uH	TAPE & REEL	3.8 A		18000 mA		Other Transformers	L32.31XB27.03XH13.69 (mm)	85 Cel	GENERAL PURPOSE	12 V	-40 Cel	13.69 mm	27.03 mm		LENGTH DIM INCLUDES TERMINALS ALSO	20			32.31 mm	2:1		48
750311591	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT	750311591		TIN SILVER	1		1500 V		8 uH	TAPE & REEL	3 A		20000 mA		Other Transformers	L32.31XB27.03XH13.69 (mm)	125 Cel	GENERAL PURPOSE	15 V	-40 Cel	13.69 mm	27.03 mm		LENGTH DIM INCLUDES TERMINALS ALSO	20	e2		32.31 mm	1.5:1		48
750311592	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT	750311592		TIN SILVER	1		1500 V		8 uH	TAPE & REEL	1.9 A		18000 mA		Other Transformers	L32.31XB27.03XH13.69 (mm)	85 Cel	GENERAL PURPOSE	24 V	-40 Cel	13.69 mm	27.03 mm		LENGTH DIM INCLUDES TERMINALS ALSO	20	e2		32.31 mm	1:1		48
750311593	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT				1		1500 V		15 uH	TAPE & REEL	9 A		18000 mA		Other Transformers	L32.31XB27.03XH13.69 (mm)	85 Cel	GENERAL PURPOSE	5 V	-40 Cel	13.69 mm	27.03 mm	.008 ohm	LENGTH DIM INCLUDES TERMINALS ALSO	30			32.31 mm	3.5:1		75
750311594	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT				1		1500 V		15 uH	TAPE & REEL	3.8 A		18000 mA		Other Transformers	L32.31XB27.03XH13.69 (mm)	85 Cel	GENERAL PURPOSE	12 V	-40 Cel	13.69 mm	27.03 mm	.015 ohm	LENGTH DIM INCLUDES TERMINALS ALSO	30			32.31 mm	2.33:1		75
750311595	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT				1		1500 V		12 uH	TAPE & REEL	3 A		16000 mA		Other Transformers	L32.31XB27.03XH13.69 (mm)	125 Cel	GENERAL PURPOSE	15 V	-40 Cel	13.69 mm	27.03 mm	.012 ohm	LENGTH DIM INCLUDES TERMINALS ALSO	30			32.31 mm	2:1		75
750311596	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT				1		1500 V		12 uH	TAPE & REEL	1.9 A		18000 mA		Other Transformers	L32.31XB27.03XH13.69 (mm)	125 Cel	GENERAL PURPOSE	24 V	-40 Cel	13.69 mm	27.03 mm	.03 ohm	LENGTH DIM INCLUDES TERMINALS ALSO	30			32.31 mm	1.5:1		75
750311625	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT	750311625		TIN SILVER	1	2	1500 V		9 uH	TAPE & REEL	4 A		8000 mA	1	Other Transformers	L17.75XB13.46XH12.7 (mm)	125 Cel	GENERAL PURPOSE	3.3 V	-40 Cel	12.7 mm	13.46 mm	.006 ohm	LENGTH DIM INCLUDES TERMINALS ALSO	10	e2		17.75 mm	4:1	100 KHz	40
750311675	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT			TIN SILVER	1	2	1500 V		25 uH	TAPE & REEL	2 A		2500 mA	1	Other Transformers	L15.24XB13.34XH11.43 (mm)	125 Cel	GENERAL PURPOSE	5 V	-40 Cel	11.43 mm	13.34 mm	.011 ohm	LENGTH DIM INCLUDES TERMINALS ALSO	9	e2		15.24 mm	3:1		30
750311691	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT				1	1			60 uH	TAPE & REEL	.001 A		250 mA	1	Other Transformers	L8.26XB6.6XH5.59 (mm)	125 Cel	GENERAL PURPOSE	150 V	-40 Cel	5.59 mm	6.6 mm	7.95 ohm	LENGTH DIM INCLUDES TERMINALS ALSO	8			8.26 mm	5:1	200 KHz	15
750311771	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT	750311771		TIN SILVER	1		2000 V		400 uH	TAPE & REEL						L32.31XB27.03XH13.69 (mm)	125 Cel	GENERAL PURPOSE		-40 Cel	13.69 mm	27.03 mm		LENGTH DIM INCLUDES TERMINALS ALSO		e2		32.31 mm	6:1
750311889	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT				1	1	500 V		37 uH	TAPE & REEL	.1 A		2950 mA	2	Other Transformers	L32.31XB27.03XH13.69 (mm)	125 Cel	GENERAL PURPOSE	250 V	-40 Cel	13.69 mm	27.03 mm	.175 ohm	LENGTH AND HEIGHT DIMENSION INCLUDES TERMINAL ALSO			100 KHz	32.31 mm	2.5:2.5:1	300 KHz	28
750811290	Wurth Elektronik	DATACOM TRANSFORMER	THROUGH HOLE MOUNTED				1		4500 V		461 uH	TRAY						L31.0XB31.0XH25.0 (mm)	125 Cel	GENERAL PURPOSE		-40 Cel	25 mm	31 mm						31 mm	1:1
750813134	Wurth Elektronik	DATACOM TRANSFORMER	THROUGH HOLE MOUNTED				1		4500 V		600 uH	TRAY						L16.5XB18.0XH18.0 (mm)	125 Cel	GENERAL PURPOSE		-40 Cel	18 mm	18 mm						16.5 mm	8:1
750813390	Wurth Elektronik	DATACOM TRANSFORMER	THROUGH HOLE MOUNTED				1		4500 V		100 uH	TRAY						L43.18XB39.6XH30.48 (mm)		GENERAL PURPOSE			30.48 mm	39.6 mm						43.18 mm	1:1
750871010	Wurth Elektronik	DATACOM TRANSFORMER	THROUGH HOLE MOUNTED			TIN SILVER	1		4000 V		3300 uH	TRAY						L24.0XB20.0XH16.0 (mm)	125 Cel	GENERAL PURPOSE		-40 Cel	16 mm	20 mm				e2		24 mm	14.36:1
24HSS1041A-2HF	Bothhand Usa	DATACOM TRANSFORMER	SURFACE MOUNT				4		1500 V		350 uH							L17.55XB12.2XH6.0 (mm)	70 Cel	1000 BASE-T; ETHERNET		0 Cel	6 mm	12.2 mm		HEIGHT DIMENSION INCLUDES TERMINALS ALSO				17.55 mm	1CT:1
HX2019FNL	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT				1		1500 V	1.2 dB	350 uH						Other Transformers	12.7mm x 9.09mm x 5.99mm	85 Cel	GENERAL PURPOSE		-40 Cel	5.99 mm	9.09 mm						12.7 mm	1:1
H6062FNL	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT				4		1500 V		350 uH								70 Cel	GENERAL PURPOSE		0 Cel	5.72 mm	15.24 mm		HEIGHT DIMENSION INCLUDES TERMINALS ALSO				17.5 mm	1:1
HX6098NL	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT				4		1500 V		120 uH							L18.16XB12.19XH6.6 (mm)	85 Cel	GENERAL PURPOSE		-40 Cel	6.6 mm	12.19 mm		HEIGHT DIMENSION INCLUDE TERMINAL ALSO				18.16 mm	1:1
ST7033QNL	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT				3		1500 V		90 uH								70 Cel	GENERAL PURPOSE		0 Cel	5.72 mm	6.99 mm		HEIGHT DIAMENSION INCLUDE TERMINALS ALSO				11.56 mm	1:1:1
7498011211	Wurth Elektronik	DATACOM TRANSFORMER	THROUGH HOLE MOUNTED		UL		1		1500 V		350 uH								85 Cel	10/100 BASE-T		-40 Cel	13.5 mm	15.9 mm						21.7 mm	1:1
HX5014FNLT	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT			Matte Tin (Sn) - with Nickel (Ni) barrier	4		1500 V		350 uH	TAPE & REEL						L27.81XB14.99XH7.24 (mm)	85 Cel	GENERAL PURPOSE		-40 Cel	7.24 mm	14.99 mm		HEIGHT DIMENSION INCLUDES TERMINALS ALSO		e3		27.81 mm	1:1
H1102	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT			Tin/Lead (Sn/Pb)	1		1500 V			TUBE						L12.7XB7.11XH5.97 (mm)	70 Cel	10/100 BASE-T		0 Cel	5.97 mm	7.11 mm		HEIGHT DIMENSION INCLUDE TERMINAL ALSO		e0		12.7 mm	1:1
HX1188T	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT				1		1500 V			TR							85 Cel	10/100 BASE-T		-40 Cel	5.97 mm	7.11 mm		HEGHT DIM INCLUDES TERMINAL ALSO				12.7 mm	1:1; 1:1
HX5401NL	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT				4		1500 V										85 Cel	ETHERNET		-40 Cel	11.18 mm	17.27 mm		HEIGHT DIMENSION INCLUDES TERMINALS ALSO				28.45 mm	1:1; 1:1
B78476A1889A003	TDK	DATACOM TRANSFORMER	SURFACE MOUNT	B78476A1889A003			2		1500 V		350 uH	TAPE & REEL, BLISTER						L13.64XB11.94XH6.22 (mm)	70 Cel	10/100 BASE-T; ETHERNET		0 Cel	6.22 mm	11.94 mm		HEIGHT DIMENSION INCLUDES TERMINAL ALSO				13.64 mm	1CT:1CT
T-1231	Rhombus Industries	DATACOM TRANSFORMER	THROUGH HOLE MOUNTED	T-1231			1		500 V		7680 uH							14.22mm X 11.93mm X 12.19mm		GENERAL PURPOSE			12.19 mm	11.93 mm						14.22 mm	1.7:1.6
7440	Api Technologies	DATACOM TRANSFORMER	SURFACE MOUNT	7440			8		1500 V									L1.13XB0.51XH0.3 (inch)		100/1000 BASE-T; ETHERNET			7.62 mm	12.954 mm		HEIGHT DIMENSION INCLUDES TERMINAL ALSO				28.702 mm	1:1
H5200NL	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT		UL		8		1500 V		350 uH								70 Cel	GENERAL PURPOSE		0 Cel	11.18 mm	14.73 mm						17.27 mm	1:1
E2023NL	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT		UL	Matte Tin (Sn)	1	2	2000 V		200 uH	TUBE				22	Other Transformers	L12.7XB7.24XH5.08 (mm)	70 Cel	10 BASE-T		0 Cel	5.08 mm	7.24 mm	.6 ohm	HEIGHT DIM INCLUDES TERMINALS ALSO		e3		12.7 mm	1CT:2.5CT; 1CT:1CT
H1164NL	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT		IEEE	Tin (Sn)	4	88	1500 V	1 dB		TUBE					Other Transformers	L28.58XB12.19XH5.84 (mm)	70 Cel	10/100 BASE-TX		0 Cel	5.84 mm	12.19 mm		HIGHT DIMENSION INCLUDES TEMINAL ALSO		e3	100 KHz	28.58 mm	1CT:1CT	100000 KHz
H1183NLT	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT				1		1500 V			TR						L12.7XB7.11XH5.59 (mm)	70 Cel	10/100 BASE-T; AUTOMDIX		0 Cel	5.59 mm	7.11 mm		HEIGHT DIMENSION INCLUDES TERMINALS ALSO				12.7 mm	1:1; 1:1
H1260NL	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT				1		1500 V		350 uH	TUBE						L12.7XB7.11XH6.0 (mm)	70 Cel	10/100 BASE-TX; ETHERNET		0 Cel	6 mm	7.11 mm		HEIGHT DIMENSION INCLUDES TERMINALS ALSO				12.7 mm	1:1
HX1234NL	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT		IEEE	Matte Tin (Sn)	4	88	1500 V	1 dB		TUBE					Other Transformers	L28.58XB12.19XH7.11 (mm)	85 Cel	10/100 BASE-TX		-40 Cel	7.11 mm	12.19 mm		HIGHT DIMENSION INCLUDES TEMINAL ALSO		e3	100 KHz	28.58 mm	1CT:1CT	200000 KHz

Pulse & Datacom Transformers

Pulse transformers and datacom transformers are two types of transformers used in electronic circuits for signal isolation and transmission.

Pulse transformers are used to transmit short-duration electrical pulses between two circuits, while providing electrical isolation between them. They are commonly used in applications such as digital communication, pulse amplifiers, and switching power supplies. Pulse transformers are typically designed to handle high voltage and high-frequency signals, and have a low turns ratio. They are also designed to minimize signal distortion and provide high signal integrity.

Datacom transformers, also known as isolation transformers, are used to provide electrical isolation and impedance matching between two circuits in data communication applications, such as Ethernet and other networking protocols. They are used to eliminate ground loops, reduce electromagnetic interference (EMI), and provide surge protection. Datacom transformers are typically designed to handle low voltage and low-frequency signals, and have a high turns ratio. They are also designed to provide high common-mode rejection and low insertion loss.