Power Integrations INN4276C-H186-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.11 | $2.11 |
| 15+ | $2.04 | $30.60 |
| 25+ | $2.00 | $50.00 |
| 50+ | $1.89 | $94.50 |
| 100+ | $1.67 | $167.00 |
| N+ | $0.33 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | |
| Packaging | Tape & Reel (TR) | |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 750V |
| Topology | Flyback, Secondary Side SR |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | 85V ~ 265V |
| Duty Cycle | - |
| Frequency - Switching | 50kHz ~ 140kHz |
| Power (Watts) | 125 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage, UVLO |
| Control Features | Soft Start |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 24-PowerSMD Module (0.425", 10.80mm Width), 17 Leads |
| Supplier Device Package | InSOP-24D |
| ROHS |
The INN4276C-H186-TL from Power Integrations is an isolated flyback offline switcher with an integrated 750V switch and secondary-side synchronous rectification. Delivering up to 125 W across a 50kHz to 140kHz switching range, it includes current limiting, over temperature, over voltage, and UVLO protection plus soft start. Housed in a 24-PowerSMD module, it operates from -40°C to 105°C.
- Integrated 750V switch simplifies primary-side design and reduces external component count.
- Secondary-side synchronous rectification topology supports efficient isolated power conversion.
- 125 W output capability suits medium-power offline applications.
- Comprehensive protection set (current limiting, OTP, OVP, UVLO) enhances reliability.
- Wide -40°C to 105°C operating range for demanding environments.
AC-DC Adapters and Chargers
The 125 W power capability and 750V breakdown voltage make this flyback device well suited for offline adapters requiring a robust primary switch margin across universal mains input.
Industrial Power Supplies
With an operating temperature range of -40°C to 105°C and integrated over temperature and over voltage protection, it supports reliable operation in demanding industrial environments.
Secondary-Side Synchronous Rectification Designs
The flyback, secondary-side SR topology improves efficiency in isolated outputs, making it a fit for compact power supplies where secondary rectification losses matter.
Universal Input Offline Systems
An 85V to 265V Vcc supply range supports designs spanning worldwide mains voltages, while soft start limits inrush stress during power-up.
- Q: What topology does the INN4276C-H186-TL use?
- A: It is a flyback offline switcher with secondary-side synchronous rectification, providing galvanic isolation.
- Q: What is the power rating?
- A: It delivers up to 125 W.
- Q: What is the breakdown voltage?
- A: The integrated switch has a 750V Vds rating.
- Q: What switching frequency does it support?
- A: It operates from 50kHz to 140kHz.
- Q: What protections are included?
- A: Current limiting, over temperature, over voltage, and UVLO.
- Q: What topology does the INN4276C-H186-TL use?
- A: It is a flyback offline switcher with secondary-side synchronous rectification, providing galvanic isolation.
- Q: What is the power rating?
- A: It delivers up to 125 W.
- Q: What is the breakdown voltage?
- A: The integrated switch has a 750V Vds rating.
- Q: What switching frequency does it support?
- A: It operates from 50kHz to 140kHz.
- Q: What protections are included?
- A: Current limiting, over temperature, over voltage, and UVLO.

INN4276C-H186-TL.pdf