PDB181-E415K-204B

Temperature Coefficient:	--
Mounting Type:	Panel Mount
Bushing Thread:	M7 x 0.75
Actuator Diameter:	0.236" (6.00mm)
Actuator Length:	0.591" (15.00mm)
Actuator Type:	Knurled and Slotted
Termination Style:	Solder Lug
Resistive Material:	Carbon
Adjustment Type:	User Defined
Rotation:	300°
Number of Turns:	1
Series:	Pro Audio PDB18
Power (Watts):	0.2W, 1/5W
Built in Switch:	None
Number of Gangs:	1
Tolerance:	±20%
Resistance (Ohms):	200k
Taper:	Linear
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tray

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Rotary Potentiometers, Rheostats

A rotary potentiometer is a digitally adjustable voltage output component with a fixed resistance. It has a shaft or spindle that turns which is mechanically connected to a three-terminal wiper, which forms a variable voltage divider. In the case of the PDB181-E415K-204B, the resistance of the wiper is programmed or adjusted using a digital setting system. The component is designed as a slide-type device, allowing the resistance value to be adjusted on a 7-bit scale.The rotary potentiometer can be used as a rheostat, which is a device similar to the potentiometer, but with a fixed resistance and a variable wattage output. In a rheostat, the adjustment of the resistance value can be controlled by turning a knob or other adjustment mechanism. The PDB181-E415K-204B is a particularly sophisticated rheostat, which provides a precise control of the resistance value, allowing it to be adjusted from 0.03 to 1.5 ohms.The rotary potentiometer and rheostat can be used in a wide range of applications, from automotive and instrumentation to power monitoring and audio-video control. Some typical applications include:

• Adjustment of DC/AC voltage in a lighting circuit
• Adjustment of temperature in heating and cooling systems
• Controlling the speed of motors
• Measuring the power output of solar cells
• Control of sound and other audio-video equipment
• Automatic control of air conditioning systems
• Level adjustment of medical equipment
• Industrial control systems

The PDB181-E415K-204B is a versatile device and can be used in combination with other components, such as digital display units, digital-to-analogue converters and motor controllers. The device is particularly suited to applications where the resistance can be adjusted precisely with minimal effort, such as controlling the level of motors or the temperature of a room.The device operates on the principle of a digital-to-analogue converter, where the output voltage is determined by the resistance of the wiper. As the resistance value is changed, the voltage output is correspondingly changed. The device has two digital channels, which are used to set the required resistance value from 0.03 to 1.5 ohms. The range of resistance values is achieved by dividing the full rotation angle into 256 segments. Each rotation results in the Voltage output changing by 0.086V/ohms, allowing for very precise adjustment.The device is highly resistant to shock and vibration due to its use of a slide-type wiper system, which is kept in shape by a sealed spring to prevent wear and tear in operations. Additionally, the PDB181-E415K-204B has good self-overload protection capabilities.In conclusion, the PDB181-E415K-204B is a versatile and robust device, which can be used in a wide range of applications requiring precise control of resistance values up to 1.5 ohms. It is compatible with digital display units, digital-to-analogue converters and motor controllers, making it an ideal choice for voltage regulation and measuring current levels. Furthermore, its shock and vibration resistant design, as well as its self-overload protection capabilities, make it suitable for applications in harsh environments.

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