Würth Elektronik GmbH & Co. KG- Transformers

Würth Elektronik is a leading manufacturer of electronic and electromechanical components, part of the globally renowned Würth Group, founded in 1945 and headquartered in Niedernhall, Germany. The company specializes in EMC and inductive components, including ferrites, ferrite beads, inductors, common-mode chokes, transformers, and connectors. Through its Midcom division, Würth Elektronik leverages a worldwide network of ISO-certified production plants and distribution hubs to serve diverse markets. The product portfolio also extends to PCB assembly solutions, wireless connectivity modules, and passive components such as capacitors and resistors. Known for its 'more than you expect' philosophy, the company provides extensive engineering support, from design-in to prototyping and mass production. With over 120 technical salespeople globally, customers receive rapid, localized assistance and free design samples. Würth Elektronik holds a strong market position in the EMC component segment, driven by high-quality manufacturing and continuous innovation. Its components are essential in automotive electronics, industrial automation, consumer devices, and telecommunications infrastructure. The company’s commitment to reliability and comprehensive technical documentation makes it a trusted partner for engineers worldwide.

Transformers - 型号列表

499 parts in total

Mfr Part #	Quantity Available	Price	RoHS	Inductance	Width	Height	Length	Packaging	Size / Dimension	Termination Style	Operating Temperature	Other Names	Standard Package	Voltage - Isolation	Mounting Type	Type	Height - Seated (Max)	Applications	Power - Rated	Product	Voltage - Primary	Frequency	Package / Case	Series	Intended Chipset	Chipset Manufacturer	Primary Material	DC Resistance (DCR) - Secondary	Product Type	SVHC	Tariff No	Weight	Resistance - Initial (Ri) (Min)	Current Rating (Max)	Current Rating (Per Contact)	Turns Ratio - Primary:Secondary	DC Resistance (DCR)	メーカ	Frequency - Max	End - Size	Operating Temperature - Junction	Frequency Range	Secondary Winding(s)	Mounting Style	Primary Winding(s)	Power - Peak Pulse	Voltage - Auxiliary	Voltage Rating	Voltage - Supply	Voltage - Secondary	Transformer Type	Plug Type	Size	Depth	Maximum Temperature Limit	Mechanical Life	Resistance - Input	Resistance @ 25degC	Material - Core	Other Specifications	DC Resistance (DCR) (Max)	Factory Pack Quantity	Current - Supply (Disable) (Max)	Number of Units	Impedance - Primary (Ohms)	Impedance - Secondary (Ohms)	Tolerance	Test Frequency	Current Saturation - Series	Shielding	Inductance Range	Number of Outputs	Frequency - Operating	Current - Output (Max)	Function
2 749118215 Power Transformers WE-UNIT Off-Line Transformer EE13/7/4 TRANSFORMER OFF LINE 4000V UNIT Offline Transformer 110-380V 5V 8W Power Transformers WE-UNIT Transformer 0.9mH 28mohm Wurth Electronics	29	1: ¥510.204	RoHS Compliant	900 uH	20.2 mm	24.5 mm	16.5 mm	Tray	24.50mm L x 20.20mm W	Through Hole	- 40 C to + 125 C	732-3622	432	4000Vrms	Through Hole	Off-Line Transformer We-Unit	16.50mm	LED Drivers, AC/DC SMPS	9 W	-	120 ~ 385V	132kHz	-	WE-UNIT	NCP101x, NCP105x	On Semiconductor	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	New At Mouser	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
3 749196510 Power Transformers Flex-Transfrmr EFD20 TRANSFORMER 9.9UH 1.91A SMD Flex Transformer WE-FLEX EFD20 Power Transformers WE-FLEX Transformer 9.9uH 1.17A TRANSFORMER, DC/DC CONV, 9.9UH 1.91A Wurth Elektronik SMPS 变压器, 9.9μH Wurth Electronics	43	120: ¥57.569	RoHS Compliant	9.9 uH	21 mm	10.8 mm	21 mm	Tray	21.00mm L x 21.00mm W	SMD/SMT	- 40 C to + 125 C	732-2457-2	120	500VDC	Surface Mount	Flex Transformer We-Flex	10.80mm	Flyback Converters	500 VA	Control Transformers	-	-	-	WE-FLEX	-	-	-	-	-	:No SVHC (20-Jun-2013)	85043180	0.01	-	-	1.91 A	:-	:0.03ohm	-	-	-	-	-	Triple Secondary Winding	SMD/SMT	Triple Primary Winding	-	-	-	-	-	-	-	-	-	-	New At Mouser	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
750311524 変圧器オーディオとシグナル Buck Inductor with Aux for Europe TRANS BUCK SSL2101 95UH RAD Transformers Audio & Signal Buck Inductor with Aux for Europe Midcom / Wurth Electronics	23	1: ¥40.256	RoHS 認証	180 uH	13.97 mm	12.7 mm	13.97 mm	Tray	13.97mm L x 13.97mm W	Through Hole	-40°C ~ 125°C	732-2900	50	1000Vrms	Through Hole	Power Transformers	12.7 mm	LED Drivers, AC/DC SMPS	-	Transformers	230V	-	13.97 mm x 13.97 mm x 12.7 mm	-	SSL2101	NXP Semiconductors	0.11 Ohms	0.3 Ohms	Transformers	-	-	-	300 mOhms	-	-	-	-	Wurth Electronics	13.97 mm	Through Hole	- 40 C to + 125 C	-	-	-	-	-	-	-	-	-	-	-	13.97 mm L x 13.97 mm W x 12.7 mm H	-	-	-	300 mOhms	0.11 Ohms	0.3 Ohms	1000 VAC	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 750871013 電力変圧器 Offline Transformer 1.80mH 5.40ohm TRANS FLYBACK NXP STARPLUG 1.8MH Power Transformers Offline Transformer 1.80mH 5.40ohm Midcom / Wurth Electronics	10	100: ¥34.34	RoHS 認証	1.8 mH	13.72 mm	10.16 mm	19.69 mm	Tray	19.69mm L x 13.72mm W	Through Hole	-40°C ~ 125°C	732-2238	100	4000Vrms	Through Hole	Off-Line Transformer We-Unit	10.16 mm	LED Drivers, AC/DC SMPS	3 W	-	115 ~ 390V	100kHz	Reel	-	TEA1521T	NXP Semiconductors	-	-	-	-	-	-	-	350 mA	350 mA	-	-	Wurth Electronics	13.72 mm	Through Hole	- 40 C to + 125 C	-	-	-	-	3 W	15V @ 30mA	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 7491182024 電力変圧器 WE-UNIT Off-Line Transformer EE16/7/4 TRANSFORMER OFF LINE 4000V UNIT Offline Transformer 110-380V 24V 8W Power Transformers WE-UNIT Off-Line 0.9mH 10kHz 4.3ohm TRANSFORMER, WE-UNIT E16/7/4 Wurth Electronics	10	1: ¥32.776	RoHS 認証	900 uH	18 mm	16.5 mm	18 mm	Tray	18.00mm L x 16.50mm W	Through Hole	-40°C ~ 125°C	732-3624	462	4000Vrms	Through Hole	Off-Line Transformer We-Unit	16.5 mm	LED Drivers, AC/DC SMPS	9 W	-	120 ~ 385V	132kHz	Tray	WE-UNIT	NCP101x, NCP105x	On Semiconductor	:85V to 265V	-	-	:No SVHC (20-Jun-2013)	85043180	0.012	-	-	-	-	-	Wurth Electronics	18 mm	Through Hole	- 40 C to + 125 C	-	-	-	-	9 W	-	:24V	:265V	:1 x 24V	:Off Line	:-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
3 7491181012 電力変圧器 WE-UNIT Off-Line 2.8mH 10kHz 11ohm TRANSFORMER OFF LINE 4000V UNIT Offline Transformer 110-380V 12V 3W Power Transformers WE-UNIT Off-Line 2.8mH 10kHz 11ohm 8.1:1 通孔电信变压器, 2.8mH, 11Ω Wurth Electronics	23	132: ¥38.05	RoHS 認証	2.8 mH	15 mm	11 mm	16.8 mm	Tray	15.00mm L x 11.00mm W	Through Hole	-40°C ~ 125°C	732-3639	1,056	4000Vrms	Through Hole	Off-Line Transformer We-Unit	11 mm	LED Drivers, AC/DC SMPS	3 W	-	120 ~ 385V	132kHz	Tray	WE-UNIT	NCP101x, NCP105x	On Semiconductor	-	290mΩ	-	-	-	-	-	-	-	8.1:1	-	Wurth Electronics	15 mm	Through Hole	- 40 C to + 125 C	-	-	-	-	3 W	-	-	-	-	-	-	-	16.8mm	+125°C	-	-	-	-	-	11Ω	-	-	-	-	-	-	-	-	-	-	-	-	-	-
750811116 変圧器オーディオとシグナル SMD OffLin Transfrmr 85-265V 12.75W TRANS 3000V SMD Transformers Audio & Signal SMD OffLin Transfrmr 85-265V 12.75W Midcom / Wurth Electronics	124	1: ¥112.064	RoHS 認証	1.31 mH	0.7 mm	0.543 mm	1.028 mm	Tape & Reel (TR)	26.10mm L x 17.80mm W	SMD/SMT	-40°C ~ 125°C	732-3312-2	150	3000Vrms	Surface Mount	Surface Mount Offline Transformer for LED Lighting	0.543 mm	LED Drivers, AC/DC SMPS	12.75 W	Transformers	85 ~ 265V	80 ~ 200kHz	1.028 mm x 0.7 mm x 0.543 mm	750	-	-	2.23 Ohms	0.009 Ohms	Transformers	-	-	-	2.23 Ohms	800 mA	-	-	-	Wurth Electronics	0.7 mm	SMD/SMT	- 40 C to + 125 C	80 kHz to 200 kHz	-	-	-	12.75 W	-	-	-	-	-	-	1.028 mm L x 0.7 mm W x 0.543 mm H	-	-	-	2.23 Ohms	2.23 Ohms	0.009 Ohms	3000 VAC	-	150	800 mA	150	-	-	-	-	-	-	-	-	-	-	-
760875142 変圧器オーディオとシグナル MID-T8T Transformer 2.5mH 85kHz 0.75A TRANS 4500V SMD Transformers Audio & Signal MID-T8T Transformer 2.5mH 85kHz 0.75A Midcom / Wurth Electronics	160	1: ¥156.673	RoHS 認証	2.5 mH	18.8 mm	12 mm	36.5 mm	Tape & Reel (TR)	36.50mm L x 18.80mm W	SMD/SMT	-40°C ~ 125°C	732-3322-2	160	4500Vrms	Surface Mount	-	12 mm	LED Drivers, AC/DC SMPS	20 W	General Purpose Transformers	280 ~ 380V	85kHz	Reel	-	-	-	-	-	General Purpose Transformers	-	-	-	-	-	-	-	-	Wurth Electronics	18.8 mm	SMD/SMT	- 40 C to + 125 C	-	-	-	-	20 W	19V @ 20mA	-	-	-	-	-	36.5 mm L x 18.8 mm W x 12 mm H	-	-	-	-	-	-	-	-	-	-	-	2.27 Ohms	0.026 Ohms	-	-	-	-	-	-	-	-	-
750311475 変圧器オーディオとシグナル Flyback Transformer for High Efficiency TRANS FLYBACK NCL30000 1.72MH Transformers Audio & Signal Flyback Transformer for High Efficiency Midcom / Wurth Electronics	10	1: ¥78.472	RoHS Compliant	1.72 mH	26.67 mm	14.81 mm	26.92 mm	Tray	26.67mm L x 26.92mm W	Through Hole	-40°C ~ 125°C	732-2899	65	4500Vrms	Through Hole	For AC/DC Converters	14.81mm	LED Drivers, AC/DC SMPS	-	Transformers	127 ~ 431V	39kHz	26.92 mm x 26.67 mm x 14.81 mm	-	NCL30000	On Semiconductor	0.235 Ohms	0.09 Ohms	Control Transformers	-	-	-	845 mOhms	1.05 A	-	-	-	-	-	-	-	39 kHz	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 750871111 電力変圧器 Offline Transformer 1.70mH 2.4ohm TRANS OFF LINE POWER ST VIPER27L Power Transformers Offline Transformer 1.70mH 2.4ohm TRANSFORMER, WE-UNIT STM VIPER, 27L Midcom / Wurth Electronics	17	1: ¥75.072	RoHS Compliant	1.7 mH	21 mm	16 mm	25 mm	Tray	23.00mm L x 21.00mm W	Through Hole	-40°C ~ 125°C	732-2259	70	4000Vrms	Through Hole	For AC/DC Converters	16.00mm	Flyback Converters	12 W	-	120 ~ 385V	60kHz	-	-	VIPER27L	STMicroelectronics	:85V to 265V	-	-	:No SVHC (20-Jun-2013)	85043180	0.035	-	-	-	-	-	-	-	-	-	-	-	-	-	-	12V @ 10mA	:5V	:265V	:1 x 5V	:Off Line	:-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
750815542 変圧器オーディオとシグナル SMD OffLin Transfrmr 195-265V 15.5W TRANS 3000V SMD Transformers Audio & Signal SMD OffLin Transfrmr 195-265V 15.5W Midcom / Wurth Electronics	147	1: ¥112.064	Lead free / RoHS Compliant	5 mH	0.7 mm	0.543 mm	1.028 mm	Tape & Reel (TR)	26.10mm L x 17.80mm W	SMD/SMT	-40°C ~ 125°C	732-3311-2	150	3000Vrms	Surface Mount	For AC/DC Converters	13.80mm	LED Drivers, AC/DC SMPS	13.32 W	Transformers	195 ~ 265V	80 ~ 200kHz	1.028 mm x 0.7 mm x 0.543 mm	750	-	-	10.67 Ohms	0.078 Ohms	Offline Transformers	-	-	-	10.67 Ohms	390 mA	-	-	-	-	-	-	-	80 kHz to 200 kHz	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	150	-	-	-	-	-	-	-	-	-	-	-	-	-
2 749118205 電力変圧器 WE-UNIT Transformer 0.9mH 26mohm TRANSFORMER OFF LINE 4000V UNIT Offline Transformer 110-380V 5V 8W Power Transformers WE-UNIT Transformer 0.9mH 26mohm 19:1:1 通孔电信变压器, 0.9mH, 4.3Ω Wurth Electronics	511	1: ¥61.676	RoHS Compliant	900 uH	18 mm	16.5 mm	18 mm	Tray	18.00mm L x 16.50mm W	Through Hole	-40°C ~ 125°C	732-3628	462	4000Vrms	Through Hole	For AC/DC Converters	18.00mm	LED Drivers, AC/DC SMPS	9 W	-	120 ~ 385V	132kHz	-	WE-UNIT	NCP101x, NCP105x	On Semiconductor	-	26mΩ	-	-	-	-	-	-	0.85 A	19:1:1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	18mm	+125°C	-	-	-	-	-	4.3Ω	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 750310660 変圧器オーディオとシグナル Offline Transformer TRANS OFF LINE POWER ST VIPER17H Transformers Audio & Signal Offline Transformer TRANSFORMER, WE-UNIT STM VIPER, 17H Midcom / Wurth Electronics	10	1: ¥23.936	RoHS Compliant	1.2 mH	20.83 mm	17.53 mm	22.35 mm	Tray	22.35mm L x 20.83mm W	Through Hole	-40°C ~ 125°C	732-2253	500	4000Vrms	Through Hole	For AC/DC Converters	17.53mm	Flyback Converters	6 W	Transformers	85 ~ 265V	120kHz	22.35 mm x 20.83 mm x 17.53 mm	-	VIPER17H	STMicroelectronics	2 Ohms	0.06 Ohms	Flyback Transformers	:No SVHC (20-Jun-2013)	85043180	0.012	2 Ohms	20 mA	-	-	-	-	-	-	-	120 kHz	-	-	-	-	12V @ 20mA	:12V	:265V	:1 x 12V	:Off Line	:-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 749196331 電力変圧器 WE-FLEX Transformer 9.3uH 1.09A TRANSFORMER 9.3UH .97A SMD Flex Transformer WE-FLEX EFD15 Power Transformers WE-FLEX Transformer 9.3uH 1.09A TRANSFORMER, DC/DC CONV, 9.3UH 0.97A Wurth Electronics	10	1: ¥30.668	Lead free / RoHS Compliant	9.3 uH	16 mm	8.3 mm	17.5 mm	Tape & Reel (TR)	17.50mm L x 16.00mm W	SMD/SMT	-40°C ~ 125°C	732-2455-2	300	500VDC	Surface Mount	Configurable (For DC/DC)	8.30mm	Flyback Converters	500 VA	Control Transformers	-	-	-	WE-FLEX	-	-	-	-	-	:No SVHC (20-Jun-2013)	85043180	0.01	-	-	0.97 A	:-	:0.14ohm	-	-	-	-	-	Triple Secondary Winding	SMD/SMT	Triple Primary Winding	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 749196541 電力変圧器 WE-FLEX Transformer 7.6uH 2.46A TRANSFORMER 7.6UH 1.7A SMD Flex Transformer WE-FLEX EFD20 Power Transformers WE-FLEX Transformer 7.6uH 2.46A TRANSFORMER, DC/DC CONV, 7.6UH 1.7A Wurth Elektronik 开关式电源变压器, 7.6μH Wurth Electronics	95	1: ¥54.36	Lead free / RoHS Compliant	7.6 uH	21 mm	10.8 mm	21 mm	Tape & Reel (TR)	21.00mm L x 21.00mm W	SMD/SMT	-40°C ~ 125°C	732-2453-2	120	500VDC	Surface Mount	Configurable (For DC/DC)	10.80mm	Flyback Converters	1500 VA	Control Transformers	-	-	-	WE-FLEX	-	-	-	-	-	:No SVHC (20-Jun-2013)	85043180	0.01	-	-	1.7 A	:-	:0.071ohm	-	-	-	-	-	Triple Secondary Winding	SMD/SMT	Triple Primary Winding	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 750370024 変圧器オーディオとシグナル Offline Transformer TRANS OFF LINE POWER ST VIPER17H Transformers Audio & Signal Offline Transformer TRANSFORMER, WE-UNIT STM VIPER, 17H Midcom / Wurth Electronics	17	1: ¥45.30	RoHS Compliant	1.6 mH	13.72 mm	10.8 mm	19.69 mm	Tray	19.69mm L x 13.72mm W	Through Hole	-40°C ~ 125°C	732-2252	500	4000Vrms	Through Hole	For AC/DC Converters	10.80mm	Flyback Converters	6 W	Transformers	120 ~ 600V	115kHz	19.69 mm x 13.72 mm x 10.8 mm	-	VIPER17H	STMicroelectronics	6.2 Ohms	0.1 Ohms	Offline Transformers	:No SVHC (20-Jun-2013)	85043180	0.01	6.2 Ohms	500 mA	-	-	-	-	-	-	-	115 kHz	-	-	-	-	16V @ 50mA	:12V	:265V	:1 x 12V	:Off Line	:-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
750311907 変圧器オーディオとシグナル Boost Inductor IND BOOST CY8CLEDAC02 1.2MH RAD Transformers Audio & Signal Boost Inductor Midcom / Wurth Electronics	600	1: ¥54.508	RoHS Compliant	1.2mH	10.18 mm	9.78 mm	8.26 mm	Tray	0.580" Dia x 0.365" W (14.73mm x 9.27mm)	Through Hole	- 40 C to + 125 C	732-2905	300	-	Through Hole	Wirewound	-	-	-	Transformers	-	-	Radial	-	-	-	1.1 Ohms	-	Control Transformers	-	-	-	1.1 Ohms	200mA	-	-	1.1 Ohm	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	±10%	10kHz	200mA	Unshielded	-	-	-	-	-
2 749196521 電力変圧器 WE-FLEX Transformer 12.0uH 1.73A TRANSFORMER 12UH 1.7A SMD Flex Transformer WE-FLEX EFD20 Power Transformers WE-FLEX Transformer 12.0uH 1.73A TRANSFORMER, DC/DC CONV, 12UH 1.7A Wurth Elektronik SMPS 变压器, 12μH Wurth Electronics	10	1: ¥65.39	Lead free / RoHS Compliant	12 uH	21 mm	10.8 mm	21 mm	Tape & Reel (TR)	21.00mm L x 21.00mm W	SMD/SMT	-40°C ~ 125°C	732-2445-2	120	500VDC	Surface Mount	Configurable (For DC/DC)	10.80mm	Flyback Converters	500 VA	Control Transformers	-	-	-	WE-FLEX	-	-	-	-	-	:No SVHC (20-Jun-2013)	85043180	0.01	-	-	1.7 A	:-	:0.071ohm	-	-	-	-	-	Triple Secondary Winding	SMD/SMT	Triple Primary Winding	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 749196321 電力変圧器 WE-FLEX Transformer 14.2uH 0.63A TRANSFORMER 14.2UH .97A SMD Flex Transformer WE-FLEX EFD15 Power Transformers WE-FLEX Transformer 14.2uH 0.63A Wurth Elektronik 3输出 SMPS 变压器, 14.2μH Wurth Electronics	29	300: ¥40.58	Lead free / RoHS Compliant	14.2 uH	16 mm	8.3 mm	17.5 mm	Tape & Reel (TR)	17.50mm L x 16.00mm W	SMD/SMT	-40°C ~ 125°C	732-2446-2	300	500VDC	Surface Mount	Configurable (For DC/DC)	8.30mm	Flyback Converters	500 VA	Control Transformers	-	-	-	WE-FLEX	-	-	-	-	-	-	-	-	-	-	0.97 A	1:1:1:1:1:1	140mΩ	-	-	-	-	-	Triple Secondary Winding	SMD/SMT	Triple Primary Winding	-	-	-	-	-	-	-	-	8.3mm	+125°C	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	14.2µH	3	1MHz	0.97A	Y
750811016 変圧器オーディオとシグナル Offline Transformer Transformers Audio & Signal Offline Transformer Midcom / Wurth Electronics	128	1: ¥81.257	RoHS Compliant	1.67 mH	16.9 mm	13 mm	18.8 mm	Tray	18.8 mm L x 16.9 mm W x 13 mm H	Through Hole	- 40 C to + 125 C	-	-	4500 VAC	-	Off-Line Transformer We-Unit	-	-	6 W	Transformers	-	-	18.8 mm x 16.9 mm x 13 mm	-	-	-	2.77 Ohms	0.024 Ohms	Offline Transformers	-	-	-	2.77 Ohms	450 mA	-	-	-	-	-	-	-	100 kHz	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-