At 11A, conduction loss = I² × Rds(on) = 121 × 0.012 = 1.45 W. With RθJA ~ 45°C/W (natural convection), temperature rise ≈ 65°C above ambient. For 50°C ambient, case temp = 115°C (acceptable for industrial grade). For higher ambient, forced air or reduce current to 9A.
The installation relies entirely on mapping your schematic to the physical pinout of the relay socket. A standard industrial 11-pin layout uses the following standardized mapping sequence:
Switching a relay or solenoid with the F4901’s contacts? Add an RC snubber (AC) or diode (DC) across the load, not just the coil.
12 AWG or 10 AWG Stranded Copper (Rated for to handle thermal dissipation) f4901 11a 24v schematic install
Verify that no stray copper wire strands are bridging the terminals.
Referring to your :
A successful installation starts long before the first wire is stripped. Careful planning here will save you time and prevent failures. At 11A, conduction loss = I² × Rds(on) = 121 × 0
: Connect the wires that will supply power to your devices to the "+" and "-" terminals. Use a ferrule on each wire for a secure and reliable connection. Pay extremely close attention to the polarity—this is critical for your equipment's safety.
Replace the blown fuse and reverse the physical orientation of the flyback diode.
Fix: Check the orientation of your flyback protection diode. If the diode is installed backward, it creates a direct short circuit across the control lines the instant the trigger switch closes. For higher ambient, forced air or reduce current to 9A
To complete your setup safely, your next step is to select a and choose the correct inline fuses to protect your new 24V power loop.
Voltage drop over long wire run reduces power below the required threshold.
: Secure the component to a non-combustible metal surface to assist with heat dissipation, especially if it operates continuously at 11A.