Maybe a daft question but can I use a resistor in a circuit to act like a fuse. It would be infinitely high resistance if it were blown, but it couldn't get hot either. The resistance of the fuse resistor is generally small, and most of it is less than 1 ohm. Therefore resistance of the resistor must be fairly high (about 600 ohms) in order to prevent too much current flow in the circuit. Can I put a resistor into this circuit to act as a fuse if the current drawn exceeds 500mAh. In, fact, this occurrence happened to him not once, not tw… ... but the resistor will allow current to flow through it whenever the relay is on. As the power increases, the product size will continue to increase. This means that the current running through the blower motor, and thus is speed is controlled by the resistor value. I did recall the TSB about this issue and checked, yup, still rocking original part (like most other components, still have great tie rods and arms after 125,000 miles). I've attached the schematic to show where the fusible resistor is (R288 lower right of schematic next to C220). A fuse shouldn't be very hot on the exterior, unlike a power resistor. I changed a resistor with same color stripes Yellow, Purple, Gold, Gold on a Pioneer surround system but the only difference was that the I put was a bit bigger. Related Resources. In this article, I will … Well, my friend did. As far as the module/resistor goes, it rattled a little out of the box so I didn’t have high hopes. I will do some actual tests on them but I'm wondering if they will be OK. The circuit is powered by a 4.2V LIPO cell and the maximum current drawn (or should be) at 4.2v is 400mAh. Types of Resistors Blower resistors are made of several resistors with different resistances. For example, it may need 30seconds to break by a current which is 35 times greater than the rated current..... so it is only good for … Fuse is also a resistor which melts if the current passing through it crosses a set limit.Actually Fuse is needed to break a current flow in the circuit beyond a specified limit which is set on the basis of how much tolerence an electrical device has.If the current crosses this tolerance limit the device will burn,explod or melt.There can be other kinds of circuit breakers also. In fact, most fusible resistor break very slowly. In this way, a fusible resistor serves dual functions. When the power isn't exceeded, it serves as a resistor limiting current. A very high value resistor would pass very little current, and be closer to an open circuit. Put the fuse back in the next day and it hasn’t ran since. I understand that there will be different voltage drops across each resistor and that each will therefore dissipate power differently as well. The user chooses a suitable fan speed by using a selector to connect one of the resistors in the blower resistor pack. A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. A resistor is not that simple as we think, we have so many different types of resistors which are used in different situations. The power is 1/4W, 1/2W, 1W and 2W. Relay / Fuse block covers usually label the location and position of each fuse, relay, or fuse element contained within. The problem is the system went into protected mode because of an error, I forced reset it and the fuse blew up. When the power rating is exceeded, it functions as a fuse, burning up, and becoming an open in the circuit to protect components in the circuit from excess current. The fuse resistor can be divided into metal film fuse resistor, fuse type wire-wound resistor and fuse type cement resistor. Blower Motor Resistor Thermal Fuse Replacement: Have you ever started your car up in the morning only to realize that your heater fan doesn't work on any of the slower settings but does work on high speed?