Power Integrations LNK6666K-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.65 | $0.65 |
| 15+ | $0.63 | $9.45 |
| 25+ | $0.61 | $15.25 |
| 50+ | $0.58 | $29.00 |
| 100+ | $0.51 | $51.00 |
| N+ | $0.10 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | LinkSwitch™-HP |
| Packaging | Tape & Reel (TR) | |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 650V |
| Topology | Flyback |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | - |
| Duty Cycle | 64% |
| Frequency - Switching | 120kHz ~ 136kHz |
| Power (Watts) | 48 W |
| Fault Protection | Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit |
| Control Features | - |
| 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 Power Integrations LNK6666K-TL from the LinkSwitch-HP series is an isolated flyback offline switcher with an integrated 650V switch. It delivers up to 48 W at 120kHz to 136kHz switching frequency with a 64% maximum duty cycle. Housed in a 12-BESOP package with exposed pad, it includes Current Limiting, Over Load, Over Temperature, Over Voltage, and Short Circuit protection across a -40°C to 150°C junction range.
- Integrated 650V switch reduces external component count in flyback designs.
- 48 W output power supports medium-power isolated AC-DC applications.
- 120kHz to 136kHz switching enables compact transformer sizing.
- Comprehensive fault protection improves system reliability.
- Exposed-pad 12-BESOP package aids thermal dissipation.
Medium-Power AC-DC Adapters
Delivering up to 48 W with a 650V integrated switch, the LNK6666K-TL suits laptop and appliance adapters needing isolated flyback conversion.
Industrial Power Supplies
The -40°C to 150°C junction temperature range supports reliable operation in demanding industrial environments.
Consumer Electronics Chargers
120kHz to 136kHz switching with 64% max duty cycle enables efficient, compact flyback designs for high-volume consumer products.
Set-Top Box and Display Power
Comprehensive protections including Over Voltage, Over Load, and Short Circuit make this LinkSwitch-HP device robust for always-on electronics.
- Q: What topology does the LNK6666K-TL use?
- A: It is an isolated flyback offline switcher with an integrated switch and 650V breakdown voltage.
- Q: What is the maximum output power?
- A: Up to 48 W.
- Q: What switching frequency range does it support?
- A: 120kHz to 136kHz.
- Q: What is the maximum duty cycle?
- A: 64%.
- Q: What protections are included?
- A: Current Limiting, Over Load, Over Temperature, Over Voltage, and Short Circuit protection.
- Q: What topology does the LNK6666K-TL use?
- A: It is an isolated flyback offline switcher with an integrated switch and 650V breakdown voltage.
- Q: What is the maximum output power?
- A: Up to 48 W.
- Q: What switching frequency range does it support?
- A: 120kHz to 136kHz.
- Q: What is the maximum duty cycle?
- A: 64%.
- Q: What protections are included?
- A: Current Limiting, Over Load, Over Temperature, Over Voltage, and Short Circuit protection.

LNK6666K-TL.pdf