WE-OLLT Offline Flyback Transformers
SizeDimen­sions3DL
(mm)
W
(mm)
H
(mm)
Mount
EE13/6/6
15 15.75 18.5 THT
EE16/7/5
- 16.5 - THT
EE20/10/6
22.25 14.6 23.24 THT
EP13
13.46 17.75 12.7 SMT
ER28/14
31 31 25 THT
ETD34
39.6 43.18 30.48 THT
RM10
31.5 31.5 20.5 THT

Characteristics

Applications

  • Offline Applications
  • High DC VIN Isolated Applications
  • Offline Bus Converter (12V, 24V or 48V Outputs)
  • Industrial power supplies
  • Medical power supplies
  • Auxiliary power supply
  • Home appliances
  • Consumer electronics

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Products

All
EE13/6/6
EE16/7/5
EE20/10/6
EP13
ER28/14
ETD34
RM10
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Order Code
Data­sheet
Simu­lation
Downloads
Status
VIN
VOut1(V)
IOut1(A)
Vaux(V)
RDC 1(Ω)
RDC 2(Ω)
RDC 3(Ω)
RDC 4(Ω)
fswitch(kHz)
L(µH)
NPRI : NSEC : NAUX
ISAT(A)
VT(V (AC))
L(mm)
W(mm)
H(mm)
Mount
Size
Samples
WE-OLLT Offline Flyback Transformers
750317464
57 - 424 V (AC), 24 V, 2 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 57 - 424 V (AC)
Output Voltage 124 V
Output Current 12 A
Auxiliary Voltage12 V
DC Resistance 10.56 Ω
DC Resistance 20.045 Ω
DC Resistance 30.175 Ω
Switching Frequency 100
Inductance440 µH
Turns Ratio4:1:0.5 
Saturation Current5.25 A
Insulation Test Voltage3000 V (AC)
Length31.5 mm
Width31.5 mm
Height20.5 mm
MountTHT 
SizeRM10 
WE-OLLT Offline Flyback Transformers
750317463
57 - 424 V (AC), 12 V, 4 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 57 - 424 V (AC)
Output Voltage 112 V
Output Current 14 A
Auxiliary Voltage12 V
DC Resistance 10.615 Ω
DC Resistance 20.025 Ω
DC Resistance 30.2 Ω
Switching Frequency 100
Inductance440 µH
Turns Ratio8:1:1 
Saturation Current5.5 A
Insulation Test Voltage3000 V (AC)
Length31.5 mm
Width31.5 mm
Height20.5 mm
MountTHT 
SizeRM10 
WE-OLLT Offline Flyback Transformers
750317589
71 - 424 V (AC), 12 V, 3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 71 - 424 V (AC)
Output Voltage 112 V
Output Current 13 A
Auxiliary Voltage12 V
DC Resistance 10.81 Ω
DC Resistance 20.025 Ω
DC Resistance 30.125 Ω
Switching Frequency 140
Inductance670 µH
Turns Ratio8:1:1 
Saturation Current3 A
Insulation Test Voltage3000 V (AC)
Length31.5 mm
Width31.5 mm
Height20.5 mm
MountTHT 
SizeRM10 
WE-OLLT Offline Flyback Transformers
7508110210
85 - 141 V (AC), 11 V, 0.35 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 141 V (AC)
Output Voltage 111 V
Output Current 10.35 A
Auxiliary Voltage15 V
DC Resistance 15.1 Ω
DC Resistance 20.092 Ω
DC Resistance 31.35 Ω
Switching Frequency 100
Inductance2000 µH
Turns Ratio6.67:1:1.67 
Saturation Current0.27 A
Insulation Test Voltage4500 V (AC)
Length15 mm
Width15.75 mm
Height18.5 mm
MountTHT 
SizeEE13/6/6 
WE-OLLT Offline Flyback Transformers
750813144
85 - 265 V (AC), 28 V, 0.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 128 V
Output Current 10.5 A
Auxiliary Voltage20 V
DC Resistance 12.4 Ω
DC Resistance 20.241 Ω
DC Resistance 31.55 Ω
Switching Frequency 100
Inductance600 µH
Turns Ratio4:1:0.71 
Saturation Current1.75 A
Insulation Test Voltage4500 V (AC)
Length18.5 mm
Width16.5 mm
Height18.8 mm
MountTHT 
SizeEE16/7/5 
WE-OLLT Offline Flyback Transformers
750811248
85 - 265 V (AC), 24 V, 2 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 124 V
Output Current 12 A
Auxiliary Voltage24 V
DC Resistance 10.155 Ω
DC Resistance 20.125 Ω
DC Resistance 30.025 Ω
DC Resistance 40.185 Ω
Switching Frequency 60 - 400
Inductance300 µH
Turns Ratio2:2:1:1 
Saturation Current3.5 A
Insulation Test Voltage4500 V (AC)
Length31 mm
Width31 mm
Height25 mm
MountTHT 
SizeER28/14 
WE-OLLT Offline Flyback Transformers
750811290
85 - 265 V (AC), 125 V, 0.36 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 1125 V
Output Current 10.36 A
Auxiliary Voltage21.25 V
DC Resistance 10.6 Ω
DC Resistance 20.254 Ω
DC Resistance 30.11 Ω
Switching Frequency 150
Inductance461 µH
Turns Ratio1:1:0.17 
Saturation Current3.15 A
Insulation Test Voltage4500 V (AC)
Length31 mm
Width31 mm
Height25 mm
MountTHT 
SizeER28/14 
WE-OLLT Offline Flyback Transformers
750811291
85 - 265 V (AC), 85 V, 0.4 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 185 V
Output Current 10.4 A
Auxiliary Voltage20 V
DC Resistance 10.55 Ω
DC Resistance 21.23 Ω
DC Resistance 31.1 Ω
Switching Frequency 60
Inductance400 µH
Turns Ratio1:1:0.24 
Saturation Current5.7 A
Insulation Test Voltage4500 V (AC)
Length31 mm
Width31 mm
Height25 mm
MountTHT 
SizeER28/14 
WE-OLLT Offline Flyback Transformers
750312646
85 - 304 V (AC), 33 V, 2.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 304 V (AC)
Output Voltage 133 V
Output Current 12.5 A
Auxiliary Voltage22 V
DC Resistance 10.11 Ω
DC Resistance 20.01 Ω
DC Resistance 30.133 Ω
Switching Frequency 70
Inductance200 µH
Turns Ratio3.3:1:5:1 
Saturation Current6 A
Insulation Test Voltage1500 V (AC)
Length31 mm
Width31 mm
Height25 mm
MountTHT 
SizeER28/14 
WE-OLLT Offline Flyback Transformers
750811330
85 - 265 V (AC), 18 V, 5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 118 V
Output Current 15 A
Auxiliary Voltage18 V
DC Resistance 10.15 Ω
DC Resistance 20.008 Ω
DC Resistance 30.042 Ω
Switching Frequency 200
Inductance300 µH
Turns Ratio6:1:1 
Saturation Current4 A
Insulation Test Voltage4500 V (AC)
Length39.6 mm
Width43.18 mm
Height30.48 mm
MountTHT 
SizeETD34 
WE-OLLT Offline Flyback Transformers
750813390
85 - 265 V (AC), 90 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 190 V
Output Current 11 A
Auxiliary Voltage19.8 V
DC Resistance 10.15 Ω
DC Resistance 20.223 Ω
DC Resistance 30.055 Ω
Switching Frequency 75
Inductance100 µH
Turns Ratio1:1:0.22 
Saturation Current9 A
Insulation Test Voltage4500 V (AC)
Length39.6 mm
Width43.18 mm
Height30.48 mm
MountTHT 
SizeETD34 
WE-OLLT Offline Flyback Transformers
750811351
85 - 265 V (AC), 36 V, 3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 136 V
Output Current 13 A
Auxiliary Voltage25 V
DC Resistance 10.135 Ω
DC Resistance 20.027 Ω
DC Resistance 30.055 Ω
Switching Frequency 75
Inductance180 µH
Turns Ratio4:1:0.67 
Saturation Current7.4 A
Insulation Test Voltage4500 V (AC)
Length39.6 mm
Width43.18 mm
Height30.48 mm
MountTHT 
SizeETD34 
WE-OLLT Offline Flyback Transformers
750817251
85 - 305 V (AC), 48 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 305 V (AC)
Output Voltage 148 V
Output Current 11 A
Auxiliary Voltage24 V
DC Resistance 10.12 Ω
DC Resistance 20.1 Ω
DC Resistance 30.05 Ω
DC Resistance 40.05 Ω
Switching Frequency 60
Inductance250 µH
Turns Ratio2:2:1:1:1 
Saturation Current4.5 A
Insulation Test Voltage4500 V (AC)
Length31 mm
Width31 mm
Height25 mm
MountTHT 
SizeER28/14 
WE-OLLT Offline Flyback Transformers
750813002
90 - 265 V (AC), 3.4 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 90 - 265 V (AC)
Output Voltage 13.4 V
Output Current 11 A
Auxiliary Voltage17 V
DC Resistance 16.25 Ω
DC Resistance 20.016 Ω
DC Resistance 31.7 Ω
Switching Frequency 100
Inductance2000 µH
Turns Ratio20:1:5 
Saturation Current0.35 A
Insulation Test Voltage4500 V (AC)
Length15 mm
Width15.75 mm
Height18.5 mm
MountTHT 
SizeEE13/6/6 
WE-OLLT Offline Flyback Transformers
750813134
90 - 265 V (AC), 14 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 90 - 265 V (AC)
Output Voltage 114 V
Output Current 11 A
Auxiliary Voltage18 V
DC Resistance 11.85 Ω
DC Resistance 20.06 Ω
DC Resistance 31.35 Ω
Switching Frequency 100
Inductance600 µH
Turns Ratio8:1:1.29 
Saturation Current1.75 A
Insulation Test Voltage4500 V (AC)
Length18 mm
Width16.5 mm
Height18 mm
MountTHT 
SizeEE16/7/5 
WE-OLLT Offline Flyback Transformers
7508111417
90 - 265 V (AC), 28 V, 0.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 90 - 265 V (AC)
Output Voltage 128 V
Output Current 10.5 A
Auxiliary Voltage24 V
DC Resistance 11.34 Ω
DC Resistance 20.058 Ω
DC Resistance 32 Ω
Switching Frequency 100
Inductance700 µH
Turns Ratio4:1:0.86 
Saturation Current1.5 A
Insulation Test Voltage4500 V (AC)
Length22.25 mm
Width14.6 mm
Height23.24 mm
MountTHT 
SizeEE20/10/6 
WE-OLLT Offline Flyback Transformers
750817220
90 - 650 V (AC), 8 V, 3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 90 - 650 V (AC)
Output Voltage 18 V
Output Current 13 A
Auxiliary Voltage28 V
DC Resistance 11.3 Ω
DC Resistance 20.015 Ω
DC Resistance 30.794 Ω
Switching Frequency 60
Inductance1000 µH
Turns Ratio14.28:1:3.28 
Saturation Current3.2 A
Insulation Test Voltage5500 V (AC)
Length31 mm
Width31 mm
Height25 mm
MountTHT 
SizeER28/14 
WE-OLLT Offline Flyback Transformers
7508111324
99 - 269 V (AC), 12 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 99 - 269 V (AC)
Output Voltage 112 V
Output Current 11 A
Auxiliary Voltage12 V
DC Resistance 11.725 Ω
DC Resistance 20.037 Ω
DC Resistance 30.41 Ω
Switching Frequency 50
Inductance2750 µH
Turns Ratio10:1:1 
Saturation Current0.5 A
Insulation Test Voltage4000 V (AC)
Length22.25 mm
Width14.6 mm
Height23.24 mm
MountTHT 
SizeEE20/10/6 
WE-OLLT Offline Flyback Transformers
7508111518
99 - 269 V (AC), 48 V, 0.3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 99 - 269 V (AC)
Output Voltage 148 V
Output Current 10.3 A
Auxiliary Voltage12 V
DC Resistance 11.4 Ω
DC Resistance 20.425 Ω
DC Resistance 30.32 Ω
Switching Frequency 50
Inductance2400 µH
Turns Ratio2.5:1:0.25 
Saturation Current0.49 A
Insulation Test Voltage4000 V (AC)
Length22.25 mm
Width14.6 mm
Height23.24 mm
MountTHT 
SizeEE20/10/6 
WE-OLLT Offline Flyback Transformers
750316022
99 - 269 V (AC), 5 V, 1.6 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 99 - 269 V (AC)
Output Voltage 15 V
Output Current 11.6 A
Auxiliary Voltage20 V
DC Resistance 14.55 Ω
DC Resistance 20.015 Ω
DC Resistance 30.695 Ω
Switching Frequency 100
Inductance3300 µH
Turns Ratio24:1:4 
Saturation Current0.36 A
Insulation Test Voltage1500 V (AC)
Length13.46 mm
Width17.75 mm
Height12.7 mm
MountSMT 
SizeEP13 
WE-OLLT Offline Flyback Transformers
750817020
141 - 318 V (AC), 10 V, 0.15 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 141 - 318 V (AC)
Output Voltage 110 V
Output Current 10.15 A
Auxiliary Voltage12 V
DC Resistance 124.8 Ω
DC Resistance 20.235 Ω
DC Resistance 30.4 Ω
Switching Frequency 150
Inductance4000 µH
Turns Ratio9.33:1:1.17 
Saturation Current0.34 A
Insulation Test Voltage4600 V (AC)
Length15 mm
Width15.75 mm
Height18.5 mm
MountTHT 
SizeEE13/6/6