Power Integrations TOP271KG-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.94 | $2.94 |
| 15+ | $2.84 | $42.60 |
| 25+ | $2.78 | $69.50 |
| 50+ | $2.63 | $131.50 |
| 100+ | $2.32 | $232.00 |
| N+ | $0.46 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | TOPSwitch®-JX |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 725V |
| Topology | Flyback |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | - |
| Duty Cycle | 78% |
| Frequency - Switching | 66kHz, 132kHz |
| Power (Watts) | 102 W |
| Fault Protection | Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit |
| Control Features | Frequency Control |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 12-BESOP (0.350", 8.89mm Width), 11 Leads, Exposed Pad |
| Supplier Device Package | 12-ESOP |
| ROHS |
The TOP271KG-TL from Power Integrations is an offline flyback switcher with an integrated power switch rated to 725 V breakdown, delivering up to 102 W. It offers a 78% maximum duty cycle and selectable 66 kHz or 132 kHz switching frequency with frequency control. Protection includes current limiting, over load, over temperature, over voltage, and short circuit. It operates across a -40°C to 150°C junction temperature range in a 12-BESOP package.
- Integrated 725 V switch simplifies isolated flyback design and reduces external components.
- 102 W output capability supports higher-power offline applications.
- Selectable 66 kHz / 132 kHz frequency with frequency control optimizes size and efficiency.
- Comprehensive fault protection (over load, over voltage, short circuit, over temperature) enhances reliability.
- Wide -40°C to 150°C junction temperature range suits demanding environments.
Higher-Power Offline Adapters
With up to 102 W output, this isolated flyback switcher suits higher-power adapters and power supplies where an integrated 725 V switch reduces external parts.
Industrial Power Supplies
The -40°C to 150°C junction temperature range and comprehensive fault protection support reliable operation in industrial environments.
Networking and Telecom Auxiliary Rails
Galvanically isolated flyback topology with short circuit and over load protection provides safe bias supplies for networking equipment.
Display and Appliance Power
Selectable 66 kHz / 132 kHz frequency control helps balance transformer size and efficiency in space-constrained designs.
- Q: What topology does the TOP271KG-TL use?
- A: It is a flyback converter providing galvanically isolated output.
- Q: Does it have an integrated switch?
- A: Yes, the power switch is integrated with a 725 V breakdown rating.
- Q: What is the maximum output power?
- A: Up to 102 W.
- Q: What switching frequencies are available?
- A: 66 kHz and 132 kHz, with frequency control.
- Q: What is the maximum duty cycle?
- A: 78%.
- Q: What protections are included?
- A: Current limiting, over load, over temperature, over voltage, and short circuit protection.
- Q: What topology does the TOP271KG-TL use?
- A: It is a flyback converter providing galvanically isolated output.
- Q: Does it have an integrated switch?
- A: Yes, the power switch is integrated with a 725 V breakdown rating.
- Q: What is the maximum output power?
- A: Up to 102 W.
- Q: What switching frequencies are available?
- A: 66 kHz and 132 kHz, with frequency control.
- Q: What is the maximum duty cycle?
- A: 78%.
- Q: What protections are included?
- A: Current limiting, over load, over temperature, over voltage, and short circuit protection.

TOP271KG-TL.pdf