Pulse & Datacom Transformers

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Part	Manufacturer	Transformer Type	Mounting Feature	Manufacturer Series	Approvals (V)	Terminal Finish	Impedance (Primary)	Power Rating	No. of Functions	Impedance (Secondary)	No. of Winding (Primary)	Maximum Pulse Rise Time	Isolation Voltage	Insertion Loss	Inductance (Primary)	Packing Method	Output Current-1	Minimum ET Product	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	Nominal Input Voltage (V)	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)
M21038/27-31T	Defense Logistics Agency	PULSE TRANSFORMER	THROUGH HOLE MOUNTED	M21038/27	MIL-PRF-21038/27				1				100 V										L15.88XB15.88XH6.99 (mm)	130 Cel	GENERAL PURPOSE		-55 Cel	6.99 mm	15.88 mm							15.88 mm	1:2.5; 1:1.79
PM-DB2745D	Holt Integrated Circuits	DATACOM TRANSFORMER	THROUGH HOLE MOUNTED		MIL-STD-1553	Tin/Lead (Sn/Pb)			1														L23.62XB16.0XH3.937 (mm)	130 Cel	DATA BUS INTERFACE		-55 Cel	3.937 mm	16.002 mm					e0		23.622 mm	1:2.5; 1:1.79
PM-DB2745D+	Holt Integrated Circuits	DATACOM TRANSFORMER	THROUGH HOLE MOUNTED		MIL-STD-1553	Matte Tin (Sn)			1														L23.62XB16.0XH3.937 (mm)	130 Cel	DATA BUS INTERFACE		-55 Cel	3.937 mm	16.002 mm					e3		23.622 mm	1:2.5; 1:1.79
Q1553-70	Pulse Electronics	PULSE TRANSFORMER	THROUGH HOLE MOUNTED						1	4000 OHMS	1		100 V								3		L15.86XB15.86XH6.35 (mm)	125 Cel	GENERAL PURPOSE		-55 Cel	6.35 mm	15.86 mm		3.5 ohm				75 KHz	15.86 mm	1CT:3CT; 1CT:2.15CT	1000 KHz
T4032	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT	T4032					1				1500 V		11900 uH	TRAY							L13.46XB13.11XH12.07 (mm)		ISDN			12.07 mm	13.11 mm							13.46 mm	1.25CS:1CT
78250MVC-R	Murata Manufacturing	DATACOM TRANSFORMER	SURFACE MOUNT	78250	UL	Matte Tin (Sn)			1				4000 V		1000 uH	TAPE & REEL		50 V-us					L9.0XB9.52XH6.35 (mm)	85 Cel	RS-232 DATA INTERFACE		-40 Cel	6.35 mm	9.52 mm					e3		9 mm
78602/16JC	Murata Manufacturing	PULSE TRANSFORMER	SURFACE MOUNT						1				1000 V		3350 uH	TUBE		28 V-us							GENERAL PURPOSE			6.35 mm	9 mm							12.7 mm	1:1:1
IL-10-0003	Schurter Ag	PULSE TRANSFORMER	THROUGH HOLE MOUNTED			TIN			1			1000 ns	3500 V		1500 uH	BULK		200 V-us					L18.5XB17.5XH11.1 (mm)	70 Cel	GENERAL PURPOSE		-25 Cel	11.5 mm	17.5 mm	380				e3		18.5 mm	1:1:1
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
TGM-H281NFRL	Halo Electronics	PULSE TRANSFORMER	SURFACE MOUNT						1				1500 V		198 uH			18.5 V-us					L12.07XB11.56XH8.64 (mm)	85 Cel	GENERAL PURPOSE		-40 Cel	8.64 mm	11.56 mm			HEIGHT DIMENSION INCLUDES TERMINAL ALSO				12.07 mm	1:1:2.6:2.6
750311624	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT			Tin (Sn) - with Nickel (Ni) barrier			1		2		1500 V		9 uH	TAPE & REEL	1 A				1		L17.75XB13.46XH12.7 (mm)	125 Cel	GENERAL PURPOSE	15 V	-40 Cel	12.7 mm	13.46 mm			LENGTH DIM INCLUDES TERMINALS ALSO	10	e3		17.75 mm	1.5:1		40
H5084NL	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT	H5084NL	UL	Tin (Sn)			4				1500 V	1.2 dB	350 uH	TUBE						Other Transformers	L15.11XB6.35XH4.01 (mm)	70 Cel	1000 BASE-T; ETHERNET		0 Cel	4.01 mm	6.35 mm			HEIGHT DIM INCLUDES TERMINAL ALSO		e3		15.11 mm	1:1
HCTSM80101AALE	Bourns	PULSE TRANSFORMER	SURFACE MOUNT		AEC-Q200, CUL, IEC, UL				1				5000 V		250 uH	TR, 13 INCH		11 V-us						125 Cel			-40 Cel	6.5 mm	10.8 mm							12.3 mm	1:1
HCTSM80101AALE1	Bourns	PULSE TRANSFORMER	SURFACE MOUNT		AEC-Q200, CUL, IEC, UL				1				5000 V		250 uH	TR, 13 INCH		11 V-us						125 Cel			-40 Cel	6.5 mm	10.8 mm							12.3 mm	1:1
IT234	Schaffner Holding Ag	PULSE TRANSFORMER	THROUGH HOLE MOUNTED						1			1000 ns			17000 uH								L27.0XB22.5XH13.7 (mm)	70 Cel	GATE DRIVE		-25 Cel	13.7 mm	22.5 mm							27 mm	3:1:1
IT242	Schaffner Holding Ag	PULSE TRANSFORMER	THROUGH HOLE MOUNTED						1			900 ns			2500 uH								L17.6XB16.7XH11.3 (mm)	70 Cel	GATE DRIVE		-25 Cel	11.3 mm	16.7 mm							17.6 mm	1:1:1
IT249	Schaffner Holding Ag	PULSE TRANSFORMER	THROUGH HOLE MOUNTED						1			4000 ns			17000 uH								L17.6XB16.7XH11.3 (mm)	70 Cel	GATE DRIVE		-25 Cel	11.3 mm	16.7 mm							17.6 mm	2:1:1
IT253	Schaffner Holding Ag	PULSE TRANSFORMER	THROUGH HOLE MOUNTED						1			1300 ns			1100 uH								L17.6XB16.7XH11.3 (mm)	70 Cel	GATE DRIVE		-25 Cel	11.3 mm	16.7 mm							17.6 mm	1:1:1
1017C	Murata Manufacturing	PULSE TRANSFORMER	THROUGH HOLE MOUNTED						1				4000 V		800 uH	TUBE		130 V-us							GENERAL PURPOSE			15.75 mm	15.06 mm							15.06 mm	1:1
74981104402	Wurth Elektronik	DATACOM TRANSFORMER	THROUGH HOLE MOUNTED		CUL; UL				4				2250 V		350 uH									85 Cel	LAN		-40 Cel	16.9 mm	16.05 mm							16.7 mm	1:1
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
78613/3MC	Murata Manufacturing	PULSE TRANSFORMER	SURFACE MOUNT	786	UL	Matte Tin (Sn)			1				1000 V		200 uH	TUBE		6 V-us					L9.52XB9.0XH6.35 (mm)	70 Cel	GENERAL PURPOSE		0 Cel	6.35 mm	9 mm					e3		9.52 mm	1CT:1
CR7983-CLD	Coilcraft	DATACOM TRANSFORMER	SURFACE MOUNT			Tin/Silver/Copper -Matte Tin -with Nickel barrier			1				5000 V		256 uH	TR, EMBOSSED PLASTIC, 13 INCH		18 V-us						125 Cel	GENERAL PURPOSE		-40 Cel	10.8 mm	21 mm	5						21.85 mm	1:2
HX1260NLT	Pulse Electronics	DATACOM TRANSFORMER	SURFACE MOUNT						1				1500 V			TAPE & REEL							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
IL-20-0001	Schurter Ag	PULSE TRANSFORMER	THROUGH HOLE MOUNTED			TIN		1.1 W	1			1500 ns	4000 V		3000 uH	BULK		300 V-us					L28.0XB23.0XH14.0 (mm)	70 Cel	GENERAL PURPOSE		-25 Cel	14.5 mm	23 mm	380	.6 ohm			e3		28 mm	1:1:1
ISRF-0239-D502	Schurter Ag	PULSE TRANSFORMER	SURFACE MOUNT			TIN			1			500 ns	3200 V		1600 uH	BULK		350 V-us					L22.7XB22.3XH14.0 (mm)	100 Cel	GENERAL PURPOSE		-25 Cel	14 mm	22.3 mm			HEIGHT DIMENSION INCLUDES TERMINAL ALSO		e3		22.7 mm	1:1:1
ISRF-0249-D101	Schurter Ag	PULSE TRANSFORMER	SURFACE MOUNT			TIN			1			50 ns	3200 V		1200 uH	BULK		250 V-us					L18.2XB17.8XH13.5 (mm)	100 Cel	GENERAL PURPOSE		-25 Cel	13.5 mm	17.8 mm			HEIGHT DIMENSION INCLUDES TERMINAL ALSO		e3		18.2 mm	1:1:1
1002C	Murata Manufacturing	PULSE TRANSFORMER	THROUGH HOLE MOUNTED						1				2000 V		3000 uH	TUBE		200 V-us							GENERAL PURPOSE			15.75 mm	15.06 mm							15.06 mm	1:1:1
1013C	Murata Manufacturing	PULSE TRANSFORMER	THROUGH HOLE MOUNTED						1				500 V		3000 uH	TUBE		200 V-us							GENERAL PURPOSE			15.75 mm	15.06 mm							15.06 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
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
78601/9JC	Murata Manufacturing	PULSE TRANSFORMER	SURFACE MOUNT						1				1000 V		10000 uH	TUBE		56 V-us							GENERAL PURPOSE			6.35 mm	9 mm							12.7 mm	1:1
78601/9JC-R	Murata Manufacturing	PULSE TRANSFORMER	SURFACE MOUNT						1				1000 V		10000 uH	TAPE & REEL		56 V-us					L9.52XB9.0XH6.65 (mm)	85 Cel	GENERAL PURPOSE		-40 Cel	6.65 mm	9 mm			CENTER TAPPED SECONDARY				9.52 mm	1:1
78602/3JC-R	Murata Manufacturing	PULSE TRANSFORMER	SURFACE MOUNT						1				1000 V		180 uH	TAPE & REEL		6 V-us					L9.52XB9.0XH6.65 (mm)	85 Cel	GENERAL PURPOSE		-40 Cel	6.65 mm	9 mm			CENTER TAPPED SECONDARY				9.52 mm	1:1:1
B82804A0264A210	TDK	PULSE TRANSFORMER	SURFACE MOUNT						1						264 uH	TR, BLISTER, 13 INCH		22.4 V-us						125 Cel	GATE DRIVE		-40 Cel	5.4 mm	6.1 mm							6.7 mm	1:1:1
CEP99-102	Sumida	PULSE TRANSFORMER	SURFACE MOUNT		AEC-Q200				2				2500 V		618 uH	TR								125 Cel	BATTERY MANAGEMENT SYSTEM		-40 Cel	10 mm	9 mm	0.02		HEIGHT DIAMENSION INCLUDE TERMINALS ALSO				9.2 mm	1:1:1:1
PA0264NLT	Pulse Electronics	PULSE TRANSFORMER	SURFACE MOUNT			Tin (Sn)			1				1500 V		1140 uH	TAPE & REEL		12.7 V-us					L8.6XB6.7XH3.6 (mm)	130 Cel	GATE DRIVE		-40 Cel	3.6 mm	6.7 mm			LENGTH AND BREADTH DIMENSION INCLUDES TERMINAL ALSO		e3		8.6 mm	1:1:1
TST-9007	Data Device	DATACOM TRANSFORMER	THROUGH HOLE MOUNTED				3000 OHMS		1	3000 OHMS	1	200 ns	100 V			TR, 13 INCH						Other Transformers	L15.88XB15.88XH7.11 (mm)	130 Cel	GENERAL PURPOSE		-55 Cel	7.11 mm	15.88 mm		4 ohm	STANDARD: MIL-PRF-21038				15.88 mm	1:2.5; 1:1.79
U6982-CLD	Coilcraft	PULSE TRANSFORMER	SURFACE MOUNT			Tin/Silver - Matte Tin - with Nickel barrier			1		1		1500 V		59 uH	TR, EMBOSSED PLASTIC, 13 INCH		22 V-us			1	Other Transformers	L6.99XB6.6XH5.46 (mm)	85 Cel	GATE DRIVE		-40 Cel	5.46 mm	6.6 mm	3.3	1.8 ohm					6.99 mm	1CT:2.1CT
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
749010013	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT		UL; CSA	TIN COPPER			1		2		1500 V	1.1 dB	350 uH	TAPE & REEL					22		L12.95XBW7.11XH5.23 (mm)	85 Cel	GENERAL PURPOSE		-40 Cel	5.23 mm	7.11 mm					e2	500 KHz	12.95 mm	1:1; 1:1	100000 KHz
7490100161A	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT	7490100161A	UL	Tin/Copper (Sn/Cu)			1				1500 V	1.1 dB	350 uH	TR, 13 INCH						Other Transformers	L12.7XB8.8XH6.35 (mm)	125 Cel	10/100 BASE-TX; AUTOMDIX; LAN		-40 Cel	6.35 mm	8.8 mm			HEIGHT DIMENSION INCLUDES TERMINALS ALSO		e2		12.7 mm	1:1; 1:1
749010310	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT						1				1500 V		350 uH	TR, EMBOSSED PLASTIC, 13 INCH								85 Cel	10/100 BASE-T		-40 Cel	4.25 mm	8.67 mm							12.7 mm	1:1
749014010	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT	749014010	IEEE	Tin (Sn)			2				4500 V		350 uH	TAPE & REEL						Other Transformers	L17.1XB14.75XH8.4 (mm)	70 Cel	GENERAL PURPOSE		0 Cel	8.4 mm	14.75 mm		.9 ohm	HEIGHT DIMENSION INCLUDES TERMINALS ALSO		e3		17.1 mm	1:1; 1:1
7490220120	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT			TIN OVER NICKEL			4				1500 V		350 uH	TR, 13 INCH								105 Cel	1000 BASE-T		-40 Cel	6.15 mm	14.7 mm			HEIGHT DIM INCLUDE TERMINAL ALSO		e3		18.29 mm	1CT:1CT; 1CT:1CT
7490220121	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT						4				1500 V		350 uH	TR, 13 INCH								105 Cel	1000 BASE-T		-40 Cel	7.2 mm	14.7 mm			HEIGHT DIAMENSION INCLUDE TERMINALS ALSO				18.29 mm	1CT:1CT
749022310	Wurth Elektronik	DATACOM TRANSFORMER	SURFACE MOUNT						4				1500 V		150 uH	TR, EMBOSSED PLASTIC, 13 INCH								85 Cel	10/100/1000 BASE-T		-40 Cel	4.1 mm	10.3 mm							16.5 mm	1:1
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

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.