1. The resistance of wirewound potentiometers is primarily made from polycarbonate synthetic resin. They should be kept away from contact with ammonia, other amines, alkaline aqueous solutions, aromatics, ketones, aliphatic hydrocarbons, and reinforcing agents (with excessively high pH values), as such contact could impair their performance.

　　2. When soldering the terminals of wire-wound potentiometers, avoid using water-soluble fluxes, as they can promote metal oxidation and material mold growth. Also, avoid using poor-quality solder; substandard solder may lead to soldering difficulties, resulting in poor contact or open-circuit issues.

　　3. The terminals of wire-wound potentiometers may be damaged if the soldering temperature is too high or the soldering time is excessively long. Pin-type terminals should be soldered at 235℃ ± 5℃, with a soldering time not exceeding 3 seconds. The soldering distance from the potentiometer body should be greater than 1.5 mm, and during soldering, solder should not flow onto the circuit board. Wire-type terminals should be soldered at 350℃ ± 10℃ within 3 seconds. The terminals should be protected from excessive pressure, as this can easily lead to poor electrical contact.

　　4. During soldering, the height at which rosin (flux) enters the PCB should be adjusted appropriately to prevent the flux from seeping into the interior of the wire-wound potentiometer. Otherwise, the brush may have poor contact with the resistive element, leading to internal arcing and noise.

　　5. When using wire-wound potentiometers in voltage-regulating circuits, the wiring should connect the “1” terminal to ground. Avoid using current-regulating configurations, as the contact resistance between the resistor and the contact strip can impede the flow of high currents.

　　6. Avoid condensation or water droplets on the surface of wire-wound potentiometers, and do not use them in damp environments to prevent insulation degradation or short circuits.

　　7. When installing a rotary potentiometer, ensure that the tightening force is not excessive, as this could damage the spiral teeth or cause poor rotation. When installing a wire-wound “metal-cased straight-slider” potentiometer, avoid using screws that are too long; otherwise, they might impede the slider’s movement or even directly damage the potentiometer itself.

　　8. During the installation of the knob on the online potentiometer, the pushing force used must not be too great (it must not exceed the axial pushing force parameter specified in the technical specifications); otherwise, the potentiometer could be damaged.

　　9. The rotational force (for rotation or sliding) of a wire-wound potentiometer becomes lighter as the temperature rises and tighter as the temperature drops. If the potentiometer is to be used in a low-temperature environment, this should be specified so that a special low-temperature-resistant lubricant can be used.

　　10. The shaft or slider of a wire-wound potentiometer should be as short as possible. The shorter the length of the shaft or slider handle, the better and more stable the feel will be. Conversely, the longer the wobble time, the better the sensation will be.

　　11. The carbon film of wirewound potentiometers can withstand an ambient temperature of 70℃. When the operating temperature exceeds 70℃, power may be lost.