Power Integrations TOP261EG
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.93 | $2.93 |
| 15+ | $2.83 | $42.45 |
| 25+ | $2.77 | $69.25 |
| 50+ | $2.62 | $131.00 |
| 100+ | $2.31 | $231.00 |
| N+ | $0.46 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | TOPSwitch®-HX |
| Packaging | Tube | |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 700V |
| Topology | Flyback |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | - |
| Duty Cycle | 78% |
| Frequency - Switching | 66kHz, 132kHz |
| Power (Watts) | 333 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage |
| Control Features | - |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 7-SSIP, 6 Leads, Exposed Pad, Formed Leads |
| Supplier Device Package | eSIP-7C |
| ROHS |
The TOP261EG from Power Integrations is a flyback offline switcher delivering up to 333 W of isolated output. It features a 700 V breakdown voltage, an integrated switch, selectable 66 kHz or 132 kHz switching, and a 78% maximum duty cycle. Current limiting, over temperature, and over voltage protection are included across a -40°C to 150°C junction temperature range in a 7-SSIP package.
- 333 W output power supports high-power isolated flyback designs.
- 700 V breakdown voltage with integrated switch reduces external components.
- Selectable 66 kHz / 132 kHz frequency and 78% max duty cycle offer design flexibility.
- Current limiting, over temperature, and over voltage protection improve reliability.
- -40°C to 150°C junction range suits harsh environments.
High-Power AC-DC Supplies
The 333 W rating and 700 V breakdown voltage make the TOP261EG suitable for high-power isolated flyback designs.
Industrial Equipment Power
The -40°C to 150°C junction temperature range supports reliable operation in harsh industrial environments.
Set-Top Boxes and Appliances
Dual 66 kHz / 132 kHz frequency options and 78% max duty cycle allow flexible flyback design for appliance power.
Telecom and Networking
Integrated switch and over voltage, over temperature, and current limiting protection support robust offline power conversion.
- Q: What topology does the TOP261EG use?
- A: It is a flyback offline switcher providing galvanically isolated output.
- Q: What is the maximum output power?
- A: Up to 333 W.
- Q: What is the breakdown voltage?
- A: 700 V with an integrated switch.
- Q: What switching frequencies are available?
- A: 66 kHz and 132 kHz, with a maximum duty cycle of 78%.
- Q: What protections and temperature range apply?
- A: Current limiting, over temperature, and over voltage protection across -40°C to 150°C (TJ).
- Q: What topology does the TOP261EG use?
- A: It is a flyback offline switcher providing galvanically isolated output.
- Q: What is the maximum output power?
- A: Up to 333 W.
- Q: What is the breakdown voltage?
- A: 700 V with an integrated switch.
- Q: What switching frequencies are available?
- A: 66 kHz and 132 kHz, with a maximum duty cycle of 78%.
- Q: What protections and temperature range apply?
- A: Current limiting, over temperature, and over voltage protection across -40°C to 150°C (TJ).

TOP261EG.pdf