WE-OLSTM Offline Flyback Transformers
SizeDimen­sions3DL
(mm)
W
(mm)
H
(mm)
Mount
EE13/7/4
13.72 20.45 10.8 THT
EE13/7/6
15 15.75 18.5 THT
EE16/7/5
- - - THT
EE16/8/5
- - - THT
EE20/10/6
- 25 16 THT
RM8
24.64 24.64 17.32 THT

Characteristics

Applications

  • Offline-switch mode power supplies
  • Especially designed for several ICs from STMicroelectronics
  • Auxiliary power supply
  • Home appliances
  • Consumer electronics

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Products

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EE13/7/4
EE13/7/6
EE16/7/5
EE16/8/5
EE20/10/6
RM8
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Order Code
Data­sheet
Simu­lation
Downloads
Status
VIN
VOut1(V)
IOut1(A)
VOut2(V)
IOut2(mA)
Vaux(V)
ISAT(A)
VT(V (AC))
fswitch(kHz)
L(mH)
NPRI : NSEC : NAUX
L(mm)
W(mm)
H(mm)
Mount
Size
Samples
WE-OLSTM Offline Flyback Transformers
750370702
60 - 187 V (AC), 12 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 60 - 187 V (AC)
Output Voltage 112 V
Output Current 11 A
Auxiliary Voltage20 V
Saturation Current1.2 A
Insulation Test Voltage3200 V (AC)
Switching Frequency 67 - 97
Inductance1.5 mH
Turns Ratio5.6:1:0.52:0.8 
Length22.2 mm
Width25 mm
Height16 mm
MountTHT 
SizeEE20/10/6 
WE-OLSTM Offline Flyback Transformers
7508110351
64 - 265 V (AC), 12 V, 0.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 64 - 265 V (AC)
Output Voltage 112 V
Output Current 10.5 A
Auxiliary Voltage15 V
Saturation Current0.53 A
Insulation Test Voltage3000 V (AC)
Switching Frequency 54 - 66
Inductance2.5 mH
Turns Ratio5.57:1:1.24 
Length15 mm
Width15.75 mm
Height18.5 mm
MountTHT 
SizeEE13/7/6 
WE-OLSTM Offline Flyback Transformers
750370024
85 - 424 V (AC), 12 V, 0.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 424 V (AC)
Output Voltage 112 V
Output Current 10.5 A
Auxiliary Voltage16 V
Saturation Current0.34 A
Insulation Test Voltage4000 V (AC)
Switching Frequency 115
Inductance1.6 mH
Turns Ratio8:1:1.33 
Length13.72 mm
Width20.45 mm
Height10.8 mm
MountTHT 
SizeEE13/7/4 
WE-OLSTM Offline Flyback Transformers
750310660
85 - 265 V (AC), 12 V, 0.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 112 V
Output Current 10.5 A
Auxiliary Voltage12 V
Insulation Test Voltage3600 V (AC)
Switching Frequency 120
Inductance1.2 mH
Turns Ratio7.87:1:1 
Length20.83 mm
Width22.35 mm
Height17.53 mm
MountTHT 
SizeEE16/8/5 
WE-OLSTM Offline Flyback Transformers
750871011
85 - 272 V (AC), 5 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 272 V (AC)
Output Voltage 15 V
Output Current 11 A
Switching Frequency 50 - 140
Inductance4 mH
Turns Ratio21.9:1:2.9 
Length20 mm
Width24 mm
Height16 mm
MountTHT 
SizeEE16/8/5 
WE-OLSTM Offline Flyback Transformers
750871010
85 - 272 V (AC), 5 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 272 V (AC)
Output Voltage 15 V
Output Current 11 A
Auxiliary Voltage12 V
Insulation Test Voltage4000 V (AC)
Switching Frequency 60
Inductance3.3 mH
Turns Ratio14.36:1:2.27 
Length20.32 mm
Width24.58 mm
Height16 mm
MountTHT 
SizeEE16/8/5 
WE-OLSTM Offline Flyback Transformers
750370026
85 - 272 V (AC), 12 V, 0.3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 272 V (AC)
Output Voltage 112 V
Output Current 10.3 A
Output Voltage 212 V
Output Current 2300 mA
Auxiliary Voltage12 V
Saturation Current0.44 A
Insulation Test Voltage3200 V (AC)
Switching Frequency 70 - 134
Inductance3.9 mH
Turns Ratio8.96:1:1:1 
Length20.2 mm
Width24.2 mm
Height15.5 mm
MountTHT 
SizeEE16/8/5 
WE-OLSTM Offline Flyback Transformers
750871110
85 - 272 V (AC), 5 V, 2.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 272 V (AC)
Output Voltage 15 V
Output Current 12.5 A
Auxiliary Voltage10 V
Insulation Test Voltage4000 V (AC)
Switching Frequency 60
Inductance1.6 mH
Turns Ratio14.4:1:2 
Length21 mm
Width25 mm
Height16 mm
MountTHT 
SizeEE20/10/6 
WE-OLSTM Offline Flyback Transformers
750871111
85 - 272 V (AC), 5 V, 2.4 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 272 V (AC)
Output Voltage 15 V
Output Current 12.4 A
Auxiliary Voltage12 V
Insulation Test Voltage4000 V (AC)
Switching Frequency 60
Inductance1.7 mH
Turns Ratio13.9:1:2.6 
Length21 mm
Width25 mm
Height16 mm
MountTHT 
SizeEE20/10/6 
WE-OLSTM Offline Flyback Transformers
760871131
85 - 297 V (AC), 12 V, 0.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 297 V (AC)
Output Voltage 112 V
Output Current 10.5 A
Output Voltage 212 V
Output Current 2500 mA
Auxiliary Voltage15 V
Saturation Current0.7 A
Insulation Test Voltage4000 V (AC)
Switching Frequency 60
Inductance1.396 mH
Turns Ratio9.6:1:1:1.2 
Length22.2 mm
Width25 mm
Height16 mm
MountTHT 
SizeEE20/10/6 
WE-OLSTM Offline Flyback Transformers
750370228
85 - 265 V (AC), 12 V, 1.25 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 112 V
Output Current 11.25 A
Auxiliary Voltage12 V
Saturation Current1.325 A
Insulation Test Voltage3900 V (AC)
Switching Frequency 50 - 60
Inductance1.5 mH
Turns Ratio8:1:1 
Length22.2 mm
Width25 mm
Height16 mm
MountTHT 
SizeEE20/10/6 
WE-OLSTM Offline Flyback Transformers
750314352
85 - 265 V (AC), 15 V, 0.7 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 115 V
Output Current 10.7 A
Output Voltage 26 V
Output Current 2100 mA
Auxiliary Voltage12 V
Saturation Current0.82 A
Insulation Test Voltage1500 V (AC)
Switching Frequency 115
Inductance0.9 mH
Turns Ratio11.9:1.33:1:2.11 
Length18.5 mm
Width16.5 mm
Height18.8 mm
MountTHT 
SizeEE16/7/5 
WE-OLSTM Offline Flyback Transformers
750314288
85 - 265 V (AC), -5 V, 0.8 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 1-5 V
Output Current 10.8 A
Output Voltage 27 V
Output Current 2420 mA
Saturation Current0.5 A
Insulation Test Voltage2000 V (AC)
Switching Frequency 60
Inductance2.5 mH
Turns Ratio14.2:1.4:1 
Length18.5 mm
Width16.5 mm
Height18.8 mm
MountTHT 
SizeEE16/7/5 
WE-OLSTM Offline Flyback Transformers
750871012
85 - 272 V (AC), 5 V, 2.4 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 272 V (AC)
Output Voltage 15 V
Output Current 12.4 A
Auxiliary Voltage14 V
Insulation Test Voltage4500 V (AC)
Switching Frequency 50 - 140
Inductance0.9 mH
Turns Ratio14.75:1:2.75 
Length20.32 mm
Width24.38 mm
Height16 mm
MountTHT 
SizeEE16/8/5 
WE-OLSTM Offline Flyback Transformers
750370423
85 - 265 V (AC), 5 V, 0.6 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 15 V
Output Current 10.6 A
Auxiliary Voltage13.3 V
Saturation Current0.6 A
Insulation Test Voltage3900 V (AC)
Switching Frequency 115
Inductance1.5 mH
Turns Ratio13.33:1:2.78 
Length15 mm
Width15.75 mm
Height18.5 mm
MountTHT 
SizeEE13/7/6 
WE-OLSTM Offline Flyback Transformers
7508110341
85 - 265 V (AC), 12 V, 0.35 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 112 V
Output Current 10.35 A
Auxiliary Voltage15 V
Saturation Current0.52 A
Insulation Test Voltage4000 V (AC)
Switching Frequency 115
Inductance1.5 mH
Turns Ratio6.87:1:1.27 
Length15 mm
Width15.75 mm
Height18.5 mm
MountTHT 
SizeEE13/7/6 
WE-OLSTM Offline Flyback Transformers
7508110342
85 - 265 V (AC), 12 V, 0.35 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 112 V
Output Current 10.35 A
Auxiliary Voltage12 V
Saturation Current0.58 A
Insulation Test Voltage4000 V (AC)
Switching Frequency 60
Inductance1.2 mH
Turns Ratio7.86:1:1.07 
Length20.32 mm
Width24.38 mm
Height16 mm
MountTHT 
SizeEE16/8/5 
WE-OLSTM Offline Flyback Transformers
7508110110
85 - 265 V (AC), 5 V, 1.2 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 15 V
Output Current 11.2 A
Auxiliary Voltage12 V
Saturation Current0.6 A
Switching Frequency 115
Inductance1.23 mH
Turns Ratio15:1:2.3 
Length20.32 mm
Width24.38 mm
Height16 mm
MountTHT 
SizeEE16/8/5 
WE-OLSTM Offline Flyback Transformers
750315363
85 - 265 V (AC), 12 V, 0.6 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 112 V
Output Current 10.6 A
Auxiliary Voltage5.1 V
Saturation Current0.625 A
Insulation Test Voltage3000 V (AC)
Switching Frequency 60
Inductance2 mH
Turns Ratio5.86:1:0.586 
Length17 mm
Width13.4 mm
Height21.5 mm
MountTHT 
SizeEE16/7/5 
WE-OLSTM Offline Flyback Transformers
7508110345
85 - 265 V (AC), 12 V, 0.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 112 V
Output Current 10.5 A
Auxiliary Voltage6 V
Saturation Current0.48 A
Insulation Test Voltage4000 V (AC)
Switching Frequency 60
Inductance2 mH
Turns Ratio5.78:1:0.52 
Length17 mm
Width13.4 mm
Height21.5 mm
MountTHT 
SizeEE16/7/5 
WE-OLSTM Offline Flyback Transformers
750316413
85 - 450 V (AC), 15 V, 0.6 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 450 V (AC)
Output Voltage 115 V
Output Current 10.6 A
Output Voltage 26 V
Output Current 2100 mA
Auxiliary Voltage13 V
Saturation Current0.7 A
Insulation Test Voltage1500 V (AC)
Switching Frequency 60
Inductance1.5 mH
Turns Ratio11.67:1.5:1:2.17 
Length18.5 mm
Width16.5 mm
Height18.8 mm
MountTHT 
SizeEE16/7/5 
WE-OLSTM Offline Flyback Transformers
750810014
85 - 265 V (AC), 5 V, 1.2 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 15 V
Output Current 11.2 A
Saturation Current0.53 A
Insulation Test Voltage1875 V (AC)
Switching Frequency 60
Inductance2 mH
Turns Ratio12.36:1 
Length15 mm
Width15.75 mm
Height18.5 mm
MountTHT 
SizeEE13/7/6 
WE-OLSTM Offline Flyback Transformers
750316878
85 - 265 V (AC), 13 V, 0.7 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 113 V
Output Current 10.7 A
Output Voltage 24.5 V
Output Current 2100 mA
Auxiliary Voltage15 V
Saturation Current0.47 A
Insulation Test Voltage4000 V (AC)
Switching Frequency 80
Inductance2.2 mH
Turns Ratio23.33:1.67:1:2.83 
Length17.04 mm
Width13.84 mm
Height22.55 mm
MountTHT 
SizeEE16/7/5 
WE-OLSTM Offline Flyback Transformers
750318330
85 - 265 V (AC), 12 V, 2.25 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 265 V (AC)
Output Voltage 112 V
Output Current 12.25 A
Auxiliary Voltage12 V
Saturation Current4.8 A
Insulation Test Voltage4000 V (AC)
Switching Frequency 56 - 138
Inductance0.15 mH
Turns Ratio5:1:3.5 
Length24.64 mm
Width24.64 mm
Height17.32 mm
MountTHT 
SizeRM8 
WE-OLSTM Offline Flyback Transformers
750871030
85 - 272 V (AC), 12 V, 0.6 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 85 - 272 V (AC)
Output Voltage 112 V
Output Current 10.6 A
Auxiliary Voltage12 V
Insulation Test Voltage4000 V (AC)
Switching Frequency 60
Inductance2.38 mH
Turns Ratio9.55:1:1 
Length20 mm
Width24 mm
Height16 mm
MountTHT 
SizeEE16/8/5 
WE-OLSTM Offline Flyback Transformers
760871431
88 - 265 V (AC), 4.5 V, 0.15 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 88 - 265 V (AC)
Output Voltage 14.5 V
Output Current 10.15 A
Output Voltage 213 V
Output Current 2420 mA
Auxiliary Voltage12 V
Insulation Test Voltage4500 V (AC)
Switching Frequency 55
Inductance2 mH
Turns Ratio27.67:1:3.17:1.22 
Length18 mm
Width16.5 mm
Height18 mm
MountTHT 
SizeEE16/7/5 
WE-OLSTM Offline Flyback Transformers
750344353
90 - 265 V (AC), 20 V, 2.25 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 90 - 265 V (AC)
Output Voltage 120 V
Output Current 12.25 A
Auxiliary Voltage12 V
Saturation Current2 A
Insulation Test Voltage4000 V (AC)
Switching Frequency 60 - 150
Inductance0.4 mH
Turns Ratio7.5:1:2.33 
Length24.64 mm
Width24.64 mm
Height17.32 mm
MountTHT 
SizeRM8 
WE-OLSTM Offline Flyback Transformers
750817436
265 - 297 V (AC), 5 V, 0.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 265 - 297 V (AC)
Output Voltage 15 V
Output Current 10.5 A
Output Voltage 212 V
Output Current 2220 mA
Auxiliary Voltage15 V
Saturation Current0.42 A
Insulation Test Voltage3000 V (AC)
Switching Frequency 115
Inductance2.3 mH
Turns Ratio19.14:1:2.43:3 
Length18.5 mm
Width16.5 mm
Height18.8 mm
MountTHT 
SizeEE16/7/5