F4901 11a: 24v Schematic New

[+24V DC Control Source] │ ▼ ┌───────────┐ │ [A1] │ │ ┌─────┐ │ │ │Coil │ │ <─── Flyback Diode (1N4007) │ └─────┘ │ Connected in Parallel │ [A2] │ └─────┬─────┘ │ ▼ [System Ground] ─────────────────────────────────────────────────── [Main Power Input (e.g., +24V 11A Line)] │ ▼ [COM] / / <─── Internal Switch Mechanism v ┌────────┴────────┐ │ │ ▼ ▼ [NC] [NO] (Idle Load) (Active Load / Motor / Actuator) 1. The Control Input (Coil Mechanism)

85V AC – 264V AC (Universal Wide-Range Input) or 110V – 370V DC f4901 11a 24v schematic new

The (e.g., Acer laptop, industrial power supply) The package size (e.g., SMD 1206, 0805) f4901 11a 24v schematic new

If the NO contact remains continuously closed even after control power is removed from the coil, the 11A limit may have been briefly exceeded by a sudden capacitive inrush, welding the internal points shut. f4901 11a 24v schematic new

If you suspect the F4901 fuse is causing your laptop issue, following a structured diagnosis is essential before attempting a replacement.