Polyfuse / PTC (Positive Temperature Coefficient) Resettable Fuse. Operating Voltage ( Vmaxcap V sub m a x end-sub ): 24V. Holding Current ( Iholdcap I sub h o l d end-sub ): 1.1A.
| Component | Value | Part Number / Notes | | :--- | :--- | :--- | | | 47µF / 63V | Electrolytic, Low ESR | | C2 (Input HF) | 0.1µF / 100V | Ceramic X7R | | IC | F4901 (or sub) | Actual chip (e.g., BP2876) | | L1 | 470µH | Through-hole or Shielded SMD, 1.5A | | D1 | SS34 | Schottky, 40V/3A | | C3 (Output) | 220µF / 35V | Low ESR Electrolytic | | C4 (Output HF) | 10µF / 35V | Ceramic | | R_FB_Top | 39kΩ | 1% tolerance | | R_FB_Bottom | 1kΩ | 1% tolerance | f4901 1.1a 24v schematic
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If you are looking to understand the circuit design (schematic) of this fan to integrate it into your own project or repair a device, here is what you need to know: | Component | Value | Part Number /