The WTH118-1A is a reliable single-turn rotary potentiometer designed for precise manual adjustment of resistance in electronic circuits. Built using carbon film technology, it offers smooth rotation, stable performance, and long service life.

With a 2W power rating, this potentiometer is suitable for higher-power applications compared to standard small potentiometers, making it ideal for power supplies, audio equipment, industrial control panels, DIY electronics, and laboratory projects.

Its durable construction and easy panel mounting make it a practical choice for both professional and hobbyist electronics projects.

| Parameter | Value |

| ------------------------- | ---------------------------------------- |

| Model | WTH118-1A |

| Type | Rotary Potentiometer |

| Resistive Material | Carbon Film |

| Power Rating | 2W |

| Number of Turns | Single Turn |

| Resistance Range | Typically 100Ω – 1MΩ (varies by version) |

| Resistance Tolerance | ±10% |

| Maximum Working Voltage | 200V DC (approx.) |

| Insulation Resistance | ≥100MΩ @ 500V DC |

| Withstand Voltage | 500V AC for 1 minute |

| Operating Temperature | −10°C to +70°C |

| Mechanical Rotation Angle | Approx. 300° |

| Mounting Type | Panel Mount (Threaded Bushing) |

| Shaft Type | Round Shaft |

| Shaft Diameter | 6 mm |

| Life Cycle | ≥10,000 rotational cycles |

Key Features

• Smooth and precise resistance adjustment

• Higher 2W power handling capability

• Durable carbon film resistive element

• Long mechanical life and stable performance

• Easy installation on control panels and enclosures

Typical Applications

• Voltage and current control

• Audio volume and tone adjustment

• Power supply tuning

• Motor speed control circuits

• DIY electronics and educational projects