Power Integrations INN2125K-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.34 | $1.34 |
| 15+ | $1.30 | $19.50 |
| 25+ | $1.27 | $31.75 |
| 50+ | $1.20 | $60.00 |
| 100+ | $1.06 | $106.00 |
| N+ | $0.21 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | InnoSwitch™-CE |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 650V |
| Topology | Flyback, Secondary Side SR |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | - |
| Duty Cycle | 60% |
| Frequency - Switching | 100kHz |
| Power (Watts) | 20 W |
| Fault Protection | Over Temperature, Over Voltage |
| Control Features | - |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 16-PowerSOIC (0.350", 8.89mm Width), 15 Leads |
| Supplier Device Package | eSOP-R16B |
| ROHS |
The Power Integrations INN2125K-TL is an offline flyback switcher from the InnoSwitch™-CE series with an integrated 650V switch and secondary-side synchronous rectification. It delivers 20 W at 100kHz switching frequency with 60% maximum duty cycle, packaged in a 16-PowerSOIC (15 leads) for isolated AC-DC designs.
- Integrated 650V switch reduces external component count in offline flyback designs.
- Secondary-side SR supports efficient isolated power conversion.
- 20 W output at 100kHz switching frequency suits compact adapters.
- Over Temperature and Over Voltage protection improve reliability.
- -40°C ~ 105°C operating range for broad deployment.
Compact AC-DC Adapters
The 20 W power rating and 100kHz switching frequency make this flyback device well suited to compact isolated adapters where secondary-side SR improves efficiency.
Chargers and Power Supplies
With a 650V breakdown rating and integrated switch, the INN2125K-TL handles offline flyback designs with fewer external components.
Industrial Control Supplies
The -40°C ~ 105°C operating range supports use in controlled and moderately demanding environments for isolated auxiliary rails.
Consumer Electronics Power
Secondary-side synchronous rectification in a flyback topology delivers isolated output suitable for consumer power delivery.
- Q: What topology does the INN2125K-TL use?
- A: It is a flyback offline switcher with secondary-side synchronous rectification, providing galvanically isolated output.
- Q: What is the breakdown voltage?
- A: The integrated switch has a 650V breakdown (Vds) rating.
- Q: How much power can it deliver?
- A: It is rated for 20 W of output power at 100kHz switching frequency.
- Q: Does it include an internal switch?
- A: Yes, the power switch is integrated on-chip.
- Q: What protections are included?
- A: Over Temperature and Over Voltage protection.
- Q: What topology does the INN2125K-TL use?
- A: It is a flyback offline switcher with secondary-side synchronous rectification, providing galvanically isolated output.
- Q: What is the breakdown voltage?
- A: The integrated switch has a 650V breakdown (Vds) rating.
- Q: How much power can it deliver?
- A: It is rated for 20 W of output power at 100kHz switching frequency.
- Q: Does it include an internal switch?
- A: Yes, the power switch is integrated on-chip.
- Q: What protections are included?
- A: Over Temperature and Over Voltage protection.

INN2125K-TL.pdf