WE-UNIT Off-Line Transformers

Würth Elektronik Midcom WE-UNIT Off-Line Transformers are designed for use in AC/DC switch-mode power supplies. These transformers work with a wide input voltage range from 125VDC to 375VDC with an isolation voltage of 4kV. The UNIT series uses the standard bobbins and core sizes EE13 and EE16, which guarantees short lead times. Both the EE13 and EE16 sizes are offered in a vertical and horizontal layout. Typical applications for Würth Elektronik Midcom WE-UNIT Off-Line Transformers include tiny switch ICs and SMPS with universal input from 85VAC to 265VAC.

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Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Primary Voltage Rating
Secondary Voltage Rating
Power Rating
Secondary Current Rating
Mounting Style
Primary Winding
Secondary Winding
Length
Width
Height
Series
Wurth Elektronik Power Transformers - Board Mount WE-UNIT Offline 120uH .8A 155Ohm
Datasheet
Lead-Time 19 Weeks
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 5 V 10 W 600 mA Through Hole Single Primary Winding Dual Secondary Winding 24.5 mm 20.2 mm 16.5 mm WE-UNIT
Wurth Elektronik Power Transformers - Board Mount MID-UNIT STM Offline 1.2mH 2Ohm
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1,000
Mult.: 50

Power 85 VAC to 265 VAC 12 V 6 W 500 mA Through Hole Single Primary Winding Single Secondary Winding 20.83 mm 22.35 mm 17.53 mm MID-OLSTM
Wurth Elektronik Power Transformers - Board Mount WE-UNIT Offline 3.52mH +-10%
Datasheet
Non-Stocked Lead-Time 21 Weeks
Min.: 1,000
Mult.: 50

Power 90 VAC to 305 VAC 16 V, 56 V 40 W 20 mA, 700 mA Through Hole Dual Primary Winding Dual Secondary Winding 24 mm 24 mm 18.67 mm WE-UNIT
Wurth Elektronik Power Transformers - Board Mount MID-OLTI UCC28720 960 uH 6 W
Datasheet
Non-Stocked Lead-Time 99 Weeks
Min.: 1,040
Mult.: 130

Power 85 VAC to 265 VAC 5 V 6 W 1.2 A Through Hole Single Primary Winding Dual Secondary Winding 15 mm 15.75 mm 18.5 mm MID-OLTI
Wurth Elektronik Power Transformers - Board Mount MID-TI PRI Flyback .367 uH 2.55A 5.3V
Datasheet
Non-Stocked Lead-Time 99 Weeks
Min.: 1,050
Mult.: 70

Flyback Transformers 85 VAC to 265 VAC 5.3 V 13.5 W 2.55 A Through Hole Dual Primary Winding Single Secondary Winding 20.32 mm 24.38 mm 16.51 mm MID-OLTI
Wurth Elektronik Power Transformers - Board Mount MID-UNIT NXP Offline 1.08mH 0.98Ohm
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1,078
Mult.: 49

Power 85 VAC to 265 VAC 24 V 12 W 500 mA Through Hole Dual Primary Winding Single Secondary Winding 26.04 mm 26.67 mm 13.59 mm MID-OLNXP
Wurth Elektronik Power Transformers - Board Mount MID-OLSTM NCP1060 3.9 mH 7.2 W
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1,000
Mult.: 50

Power 85 VAC to 265 VAC 12 V, 12 V 7.2 W 300 mA, 300 mA Through Hole Dual Primary Winding Dual Secondary Winding 20.2 mm 24.2 mm 15.5 mm MID-OLSTM
Wurth Elektronik Power Transformers - Board Mount MID-UNIT PI Offline 2.64mH 2.15Ohm
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1,050
Mult.: 70

Power 85 VAC to 265 VAC 6.2 V 2 W 322 mA Through Hole Dual Primary Winding Single Secondary Winding 20.32 mm 24.38 mm 16 mm MID-OLPI
Wurth Elektronik Power Transformers - Board Mount MID-UNIT PI Offline 1.07mH .118Ohm
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1,050
Mult.: 70

Power 85 VAC to 265 VAC 5 V 5 W 1 A Through Hole Single Primary Winding Single Secondary Winding 20.32 mm 24.38 mm 16 mm MID-OLPI
Wurth Elektronik Power Transformers - Board Mount MID-UNIT PI Offline 2.58mH .118Ohm
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1,050
Mult.: 70

Power 85 VAC to 265 VAC 5 V 2.8 W 555 mA Through Hole Single Primary Winding Single Secondary Winding 20.32 mm 24.38 mm 16 mm MID-OLPI
Wurth Elektronik Power Transformers - Board Mount MID-UNIT PI Offline 2.7mH 0.300Ohm
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1,000
Mult.: 50

Power 85 VAC to 265 VAC 6 V 2 W 330 mA Through Hole Single Primary Winding Single Secondary Winding 20.32 mm 24.38 mm 16 mm MID-OLPI
Wurth Elektronik Power Transformers - Board Mount MID-UNIT PI Offline 2.28mH 0.035Ohm
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1,000
Mult.: 50

Power 85 V to 265 V 8 V 2.4 W 300 mA Through Hole Single Primary Winding Single Secondary Winding 20.32 mm 24.38 mm 16 mm MID-OLPI
Wurth Elektronik Power Transformers - Board Mount MID-OLTI UCC28910D 1.5 mH 7.3 W
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1
Mult.: 1

Power 64 VAC to 265 VAC 24 V, 5 V 7.3 W 200 mA, 500 mA Through Hole Dual Primary Winding Dual Secondary Winding 20.32 mm 24.38 mm 16 mm MID-OLTI
Wurth Elektronik Power Transformers - Board Mount WE-UNIT Offline 200uH +-10%
Datasheet
Non-Stocked
Min.: 1,008
Mult.: 42

Power 314 VAC 25 V 62.5 W 2.5 A Through Hole Dual Primary Winding Dual Secondary Winding 31 mm 31 mm 25 mm WE-UNIT
Wurth Elektronik Power Transformers - Board Mount WE-UNIT Offline 1.60mH +-10%
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

Power 25 mm 21 mm 16 mm WE-UNIT
Wurth Elektronik Power Transformers - Board Mount MID-ALIT Lightg Apps 1.44mh +-10%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 1,080
Mult.: 90

Power 85 VAC to 135 VAC 26.6 V 6.7 W 250 mA Through Hole Dual Primary Winding Single Secondary Winding 16.9 mm 18.8 mm 13.31 mm MID-OLTI
Wurth Elektronik Power Transformers - Board Mount WE-UNIT Offline 1.30mh +-10%
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

Power 18.8 mm 16.9 mm 13.31 mm WE-UNIT
Wurth Elektronik Power Transformers - Board Mount MID-OLTI LM3450 1.02 mH 18 W
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1,008
Mult.: 16

Power 90 VAC to 135 VAC 50 V, 12.5 V 18 W 80 mA, 340 mA Through Hole Dual Primary Winding Dual Secondary Winding 28.58 mm 29.21 mm 22.86 mm MID-OLTI
Wurth Elektronik Power Transformers - Board Mount MID-OLTI UCC28600 6.6 mH 3.6 W
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 1,080
Mult.: 90

Power 185 VAC to 265 VAC 12 V 3.6 W 300 mA Through Hole Dual Primary Winding Single Secondary Winding 16.9 mm 18.8 mm 13.55 mm MID-OLTI
Wurth Elektronik Power Transformers - Board Mount WE-UNIT Offline 3.45mH +-10%
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

Power 18.8 mm 16.9 mm 13.31 mm WE-UNIT
Wurth Elektronik Power Transformers - Board Mount MID-ALIT Lightg Apps 1.78mH +-10%
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1,050
Mult.: 70

Power 180 VAC to 265 VAC 30 V 13.5 W 450 mA Through Hole Dual Primary Winding Single Secondary Winding 22.2 mm 25 mm 16 mm MID-OLTI
Wurth Elektronik Power Transformers - Board Mount WE-UNIT 4.6W SMD Offline Trnsfmr
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1,050
Mult.: 175
: 175

Power 55 VAC to 265 VAC 12 V 3.6 W 300 mA SMD/SMT Dual Primary Winding Single Secondary Winding 13.8 mm 23.9 mm 11 mm MID-OLEE
Wurth Elektronik Power Transformers - Board Mount WE-UNIT 6W SMD Offline Trnsfmr
Datasheet
Non-Stocked Lead-Time 20 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 175

Power 55 VAC to 265 VAC 15 V 4.7 W 310 mA SMD/SMT Dual Primary Winding Single Secondary Winding 13.8 mm 23.9 mm 11 mm MID-OLEE
Wurth Elektronik Power Transformers - Board Mount MID-MPM Offln Metng 1.6mH 1.68Ohm
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1,000
Mult.: 100

Power 88 VAC to 265 VAC 12 V, 24 V 16.8 W 350 mA, 700 mA Through Hole Single Primary Winding Dual Secondary Winding 22.2 mm 25 mm 16 mm MID-OLNXP
Wurth Elektronik Power Transformers - Board Mount MID-UNIT STM Offline 3.30mH 1.05Ohm
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1,050
Mult.: 70

Power 85 VAC to 265 VAC 5 V 5 W 1 A Through Hole Single Primary Winding Dual Secondary Winding 20 mm 24.58 mm 16 mm MID-OLSTM