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Compare Image Part No Manufacturer Description Inventory Pricing Quantity SeriesPackagingPart StatusOutput IsolationInternal Switch(s)Voltage - BreakdownTopologyVoltage - Supply (Vcc/Vdd)Duty CycleFrequency - SwitchingPower (Watts)Fault ProtectionControl FeaturesOperating TemperaturePackage / CaseSupplier Device PackageMounting Type
TOP234G

Mfr Part No.

TOP234G

Internal Code

1939-748-12487964		 Power Integrations
IC OFFLINE SWITCH FLYBACK 8SMD
Get a Quote -
TOPSwitch®-FX Tube Obsolete Isolated Yes 700V Flyback - 78% 66kHz ~ 132kHz 30 W Current Limiting, Over Temperature, Over Voltage Frequency Control -40°C ~ 150°C (TJ) 8-SMD (7 Leads), Gull Wing SMD-8B Surface Mount
TOP234G
TOP234G

1939-748-12487964 Power Integrations
RoHS :
Package: 8-SMD (7 Leads), Gull Wing
Inventory: -
1 : -
TOP234P

Mfr Part No.

TOP234P

Internal Code

1939-748-12487968		 Power Integrations
IC OFFLINE SWITCH FLYBACK 8DIP
Get a Quote -
TOPSwitch®-FX Tube Obsolete Isolated Yes 700V Flyback - 78% 66kHz ~ 132kHz 30 W Current Limiting, Over Temperature, Over Voltage Frequency Control -40°C ~ 150°C (TJ) 8-DIP (0.300", 7.62mm), 7 Leads 8-PDIP-B Through Hole
TOP234P
TOP234P

1939-748-12487968 Power Integrations
RoHS :
Package: 8-DIP (0.300", 7.62mm), 7 Leads
Inventory: -
1 : -
TOP271KG-TL

Mfr Part No.

TOP271KG-TL

Internal Code

1939-748-12488151		 Power Integrations
IC OFFLINE SWITCH FLYBACK 12ESOP
10239 Available
  • 1 : $2.13474
  • 10 : $1.94067
  • 100 : $1.78043
  • 500 : $1.64855
  • 1000 : $1.5407
  • 3000 : $1.45349
Unit Price: $2.13474
Minimum: 1 Multiple: 1
 TOPSwitch®-JX Tape & Reel (TR) Cut Tape (CT) Active Isolated Yes 725V Flyback - 78% 66kHz, 132kHz 102 W Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit Frequency Control -40°C ~ 150°C (TJ) 12-BESOP (0.350", 8.89mm Width), 11 Leads, Exposed Pad 12-ESOP Surface Mount
TOP271KG-TL
TOP271KG-TL

1939-748-12488151 Power Integrations
RoHS :
Package: 12-BESOP (0.350", 8.89mm Width), 11 Leads, Exposed Pad
Inventory: 10239
1 : $2.13474
TOP268VG

Mfr Part No.

TOP268VG

Internal Code

1939-748-12488141		 Power Integrations
IC OFFLINE SWITCH FLYBACK 12EDIP
9655 Available
  • 1 : $1.6188
  • 10 : $1.47164
  • 100 : $1.35012
  • 500 : $1.25012
  • 1000 : $1.16833
  • 3000 : $1.10221
Unit Price: $1.6188
Minimum: 1 Multiple: 1
 TOPSwitch®-JX Tube Active Isolated Yes 725V Flyback - 78% 66kHz, 132kHz 48 W Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit Frequency Control -40°C ~ 150°C (TJ) 12-SDIP (0.412", 10.46mm), 11 Leads, Exposed Pad eDIP-12 Through Hole
TOP268VG
TOP268VG

1939-748-12488141 Power Integrations
RoHS :
Package: 12-SDIP (0.412", 10.46mm), 11 Leads, Exposed Pad
Inventory: 9655
1 : $1.6188
TOP268KG-TL

Mfr Part No.

TOP268KG-TL

Internal Code

1939-748-12488140		 Power Integrations
IC OFFLINE SWITCH FLYBACK 12ESOP
8937 Available
  • 1 : $1.58384
  • 10 : $1.43985
  • 100 : $1.32096
  • 500 : $1.22312
  • 1000 : $1.1431
  • 3000 : $1.07839
Unit Price: $1.58384
Minimum: 1 Multiple: 1
 TOPSwitch®-JX Tape & Reel (TR) Cut Tape (CT) Active Isolated Yes 725V Flyback - 78% 66kHz, 132kHz 73 W Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit Frequency Control -40°C ~ 150°C (TJ) 12-BESOP (0.350", 8.89mm Width), 11 Leads, Exposed Pad 12-ESOP Surface Mount
TOP268KG-TL
TOP268KG-TL

1939-748-12488140 Power Integrations
RoHS :
Package: 12-BESOP (0.350", 8.89mm Width), 11 Leads, Exposed Pad
Inventory: 8937
1 : $1.58384
TOP265KG

Mfr Part No.

TOP265KG

Internal Code

1939-748-12488126		 Power Integrations
IC OFFLINE SWITCH FLYBACK 12ESOP
Get a Quote -
TOPSwitch®-JX Tube Discontinued Isolated Yes 725V Flyback - 78% 66kHz, 132kHz 53 W Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit Frequency Control -40°C ~ 150°C (TJ) 12-BESOP (0.350", 8.89mm Width), 11 Leads, Exposed Pad 12-ESOP Surface Mount
TOP265KG
TOP265KG

1939-748-12488126 Power Integrations
RoHS :
Package: 12-BESOP (0.350", 8.89mm Width), 11 Leads, Exposed Pad
Inventory: -
1 : -
TOP258YN

Mfr Part No.

TOP258YN

Internal Code

1939-748-12488105		 Power Integrations
IC OFFLINE SW FLYBACK TO220-7C
8817 Available
  • 1 : $2.0448
  • 10 : $1.8589
  • 100 : $1.70542
  • 500 : $1.5791
  • 1000 : $1.47579
  • 3000 : $1.39225
Unit Price: $2.0448
Minimum: 1 Multiple: 1
 TOPSwitch®-HX Tube Active Isolated Yes 700V Flyback - 78% 66kHz, 132kHz 195 W Current Limiting, Over Temperature, Over Voltage - -40°C ~ 150°C (TJ) TO-220-7 Formed Leads, 6 Leads TO-220-7C Through Hole
TOP258YN
TOP258YN

1939-748-12488105 Power Integrations
RoHS :
Package: TO-220-7 Formed Leads, 6 Leads
Inventory: 8817
1 : $2.0448
TOP258PN

Mfr Part No.

TOP258PN

Internal Code

1939-748-12488104		 Power Integrations
IC OFFLINE SWITCH FLYBACK 8DIP
15166 Available
  • 1 : $1.5904
  • 10 : $1.44582
  • 100 : $1.32643
  • 500 : $1.22818
  • 1000 : $1.14784
  • 3000 : $1.08287
Unit Price: $1.5904
Minimum: 1 Multiple: 1
 TOPSwitch®-HX Tube Active Isolated Yes 700V Flyback - 78% 66kHz 48 W Current Limiting, Over Temperature, Over Voltage - -40°C ~ 150°C (TJ) 8-DIP (0.300", 7.62mm), 7 Leads 8-PDIP-C Through Hole
TOP258PN
TOP258PN

1939-748-12488104 Power Integrations
RoHS :
Package: 8-DIP (0.300", 7.62mm), 7 Leads
Inventory: 15166
1 : $1.5904
TOP256PG

Mfr Part No.

TOP256PG

Internal Code

1939-748-12488081		 Power Integrations
IC OFFLINE SWITCH FLYBACK 8DIP
Get a Quote -
TOPSwitch®-HX Tube Obsolete Isolated Yes 700V Flyback - 78% 66kHz 34 W Current Limiting, Over Temperature, Over Voltage - -40°C ~ 150°C (TJ) 8-DIP (0.300", 7.62mm), 7 Leads 8-PDIP-C Through Hole
TOP256PG
TOP256PG

1939-748-12488081 Power Integrations
RoHS :
Package: 8-DIP (0.300", 7.62mm), 7 Leads
Inventory: -
1 : -
TOP255YN

Mfr Part No.

TOP255YN

Internal Code

1939-748-12488073		 Power Integrations
IC OFFLINE SW FLYBACK TO220-7C
9012 Available
  • 1 : $1.5336
  • 10 : $1.39418
  • 100 : $1.27907
  • 500 : $1.18432
  • 1000 : $1.10684
  • 3000 : $1.04419
Unit Price: $1.5336
Minimum: 1 Multiple: 1
 TOPSwitch®-HX Tube Active Isolated Yes 700V Flyback - 78% 66kHz, 132kHz 81 W Current Limiting, Over Temperature, Over Voltage - -40°C ~ 150°C (TJ) TO-220-7 Formed Leads, 6 Leads TO-220-7C Through Hole
TOP255YN
TOP255YN

1939-748-12488073 Power Integrations
RoHS :
Package: TO-220-7 Formed Leads, 6 Leads
Inventory: 9012
1 : $1.5336
TOP255EN

Mfr Part No.

TOP255EN

Internal Code

1939-748-12488065		 Power Integrations
IC OFFLINE SWITCH FLYBACK 7ESIP
5753 Available
  • 1 : $1.0934
  • 10 : $0.994
  • 100 : $0.91193
  • 500 : $0.84437
  • 1000 : $0.78914
  • 3000 : $0.74447
Unit Price: $1.0934
Minimum: 1 Multiple: 1
 TOPSwitch®-HX Tube Active Isolated Yes 700V Flyback - 78% 66kHz, 132kHz 81 W Current Limiting, Over Temperature, Over Voltage - -40°C ~ 150°C (TJ) 7-SSIP, 6 Leads, Exposed Pad, Formed Leads eSIP-7C Through Hole
TOP255EN
TOP255EN

1939-748-12488065 Power Integrations
RoHS :
Package: 7-SSIP, 6 Leads, Exposed Pad, Formed Leads
Inventory: 5753
1 : $1.0934
TOP254PN

Mfr Part No.

TOP254PN

Internal Code

1939-748-12488062		 Power Integrations
IC OFFLINE SWITCH FLYBACK 8DIP
12342 Available
  • 1 : $0.994
  • 10 : $0.90364
  • 100 : $0.82902
  • 500 : $0.76762
  • 1000 : $0.7174
  • 3000 : $0.67679
Unit Price: $0.994
Minimum: 1 Multiple: 1
 TOPSwitch®-HX Tube Active Isolated Yes 700V Flyback - 78% 66kHz 28 W Current Limiting, Over Temperature, Over Voltage - -40°C ~ 150°C (TJ) 8-DIP (0.300", 7.62mm), 7 Leads 8-PDIP-C Through Hole
TOP254PN
TOP254PN

1939-748-12488062 Power Integrations
RoHS :
Package: 8-DIP (0.300", 7.62mm), 7 Leads
Inventory: 12342
1 : $0.994
TOP254PG

Mfr Part No.

TOP254PG

Internal Code

1939-748-12488061		 Power Integrations
IC OFFLINE SWITCH FLYBACK 8DIP
Get a Quote -
TOPSwitch®-HX Tube Active Isolated Yes 700V Flyback - 78% 66kHz 28 W Current Limiting, Over Temperature, Over Voltage - -40°C ~ 150°C (TJ) 8-DIP (0.300", 7.62mm), 7 Leads 8-PDIP-C Through Hole
TOP254PG
TOP254PG

1939-748-12488061 Power Integrations
RoHS :
Package: 8-DIP (0.300", 7.62mm), 7 Leads
Inventory: -
1 : -
TOP254GN

Mfr Part No.

TOP254GN

Internal Code

1939-748-12488058		 Power Integrations
IC OFFLINE SWITCH FLYBACK 8SMD
Get a Quote -
TOPSwitch®-HX Tube Discontinued Isolated Yes 700V Flyback - 78% 66kHz 28 W Current Limiting, Over Temperature, Over Voltage - -40°C ~ 150°C (TJ) 8-SMD (7 Leads), Gull Wing SMD-8C Surface Mount
TOP254GN
TOP254GN

1939-748-12488058 Power Integrations
RoHS :
Package: 8-SMD (7 Leads), Gull Wing
Inventory: -
1 : -
TOP253EN

Mfr Part No.

TOP253EN

Internal Code

1939-748-12488049		 Power Integrations
IC OFFLINE SWITCH FLYBACK 7ESIP
18752 Available
  • 1 : $0.923
  • 10 : $0.8391
  • 100 : $0.76981
  • 500 : $0.71278
  • 1000 : $0.66616
  • 3000 : $0.62845
Unit Price: $0.923
Minimum: 1 Multiple: 1
 TOPSwitch®-HX Tube Active Isolated Yes 700V Flyback - 78% 66kHz, 132kHz 25 W Current Limiting, Over Temperature, Over Voltage - -40°C ~ 150°C (TJ) 7-SSIP, 6 Leads, Exposed Pad, Formed Leads eSIP-7C Through Hole
TOP253EN
TOP253EN

1939-748-12488049 Power Integrations
RoHS :
Package: 7-SSIP, 6 Leads, Exposed Pad, Formed Leads
Inventory: 18752
1 : $0.923
TOP246Y

Mfr Part No.

TOP246Y

Internal Code

1939-748-12488020		 Power Integrations
IC OFFLINE SW FLYBACK TO220-7C
Get a Quote -
TOPSwitch®-GX Bulk Obsolete Isolated Yes 700V Flyback - 66.5% 66kHz ~ 132kHz 125 W Current Limiting, Over Temperature, Over Voltage Frequency Control -40°C ~ 150°C (TJ) TO-220-7 Formed Leads, 6 Leads TO-220-7C Through Hole
TOP246Y
TOP246Y

1939-748-12488020 Power Integrations
RoHS :
Package: TO-220-7 Formed Leads, 6 Leads
Inventory: -
1 : -
TOP245PN

Mfr Part No.

TOP245PN

Internal Code

1939-748-12488009		 Power Integrations
IC OFFLINE SWITCH FLYBACK 8DIP
5591 Available
  • 1 : $2.3051
  • 10 : $2.09555
  • 100 : $1.92252
  • 500 : $1.78011
  • 1000 : $1.66365
  • 3000 : $1.56949
Unit Price: $2.3051
Minimum: 1 Multiple: 1
 TOPSwitch®-GX Tube Not For New Designs Isolated Yes 700V Flyback - 66.5% 66kHz ~ 132kHz 30 W Current Limiting, Over Temperature, Over Voltage Frequency Control -40°C ~ 150°C (TJ) 8-DIP (0.300", 7.62mm), 7 Leads 8-PDIP-B Through Hole
TOP245PN
TOP245PN

1939-748-12488009 Power Integrations
RoHS :
Package: 8-DIP (0.300", 7.62mm), 7 Leads
Inventory: 5591
1 : $2.3051
TOP245GN

Mfr Part No.

TOP245GN

Internal Code

1939-748-12488006		 Power Integrations
IC OFFLINE SWITCH FLYBACK 8SMD
Get a Quote -
TOPSwitch®-GX Tube Discontinued Isolated Yes 700V Flyback - 66.5% 66kHz ~ 132kHz 30 W Current Limiting, Over Temperature, Over Voltage Frequency Control -40°C ~ 150°C (TJ) 8-SMD (7 Leads), Gull Wing SMD-8B Surface Mount
TOP245GN
TOP245GN

1939-748-12488006 Power Integrations
RoHS :
Package: 8-SMD (7 Leads), Gull Wing
Inventory: -
1 : -
TOP244GN

Mfr Part No.

TOP244GN

Internal Code

1939-748-12487996		 Power Integrations
IC OFFLINE SWITCH FLYBACK 8SMD
17257 Available
 -
TOPSwitch®-GX Tube Discontinued Isolated Yes 700V Flyback - 66.5% 66kHz ~ 132kHz 28 W Current Limiting, Over Temperature, Over Voltage Frequency Control -40°C ~ 150°C (TJ) 8-SMD (7 Leads), Gull Wing SMD-8B Surface Mount
TOP244GN
TOP244GN

1939-748-12487996 Power Integrations
RoHS :
Package: 8-SMD (7 Leads), Gull Wing
Inventory: 17257
1 : -
TOP244G

Mfr Part No.

TOP244G

Internal Code

1939-748-12487995		 Power Integrations
IC OFFLINE SWITCH FLYBACK 8SMD
Get a Quote -
TOPSwitch®-GX Bulk Obsolete Isolated Yes 700V Flyback - 66.5% 66kHz ~ 132kHz 28 W Current Limiting, Over Temperature, Over Voltage Frequency Control -40°C ~ 150°C (TJ) 8-SMD (7 Leads), Gull Wing SMD-8B Surface Mount
TOP244G
TOP244G

1939-748-12487995 Power Integrations
RoHS :
Package: 8-SMD (7 Leads), Gull Wing
Inventory: -
1 : -