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Pin Type Carbon Composition Potentiometer With Switch Dimmer Switch Speed Controller

Pin Type Carbon Composition Potentiometer With Switch Dimmer Switch Speed Controller

Brand Name:ANYO
Model Number:WH138-4
Minimum Order Quantity:1000pcs
Delivery Time:8-10 work days
Payment Terms:L/C, T/T
Place of Origin:CHINA
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Location: Ningbo Zhejiang China
Address: ROOM 2204, NO.98, TIANGAO ALLEY, SOUTH BUSINESS DISTRICT, YINZHOU, 315194, NINGBO, CHINA
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Product Details

Pin type WH138-4 potentiometer with switch dimmer switch speed controller


Application:


Ideal for multimedia, computer speaker, stereos amplifier, lighting regulation etc.


Description:


Rorary potentiometer is a manually adjustable variable resistor with 3 terminals. Two terminals are connected to both ends of a resistive element, and the third terminal connects to a sliding contact, called a wiper, moving over the resistive element. The position of the wiper determines the output voltage of the potentiometer. The potentiometer essentially functions as a variable voltage divider. The resistive element can be seen as two resistors in series(potentiometer resistance), where the wiper position determines the resistance ratio of the first resistor to the second resistor.


Features:


• Rotary type with switch

• Carbon composition

• Top adjustment

• 6mm knurled shaft

• Special tapers


Mechanical specifications:


Rotational torque2~20mN.m (20~200gf.cm)
Total rotation angle300°±5°
Switch working force/torque150~450mN.m
Shaft stop strength6Kgf.cm/min
Rotary life10000 cycles
Switch life10000 times
Switch working angle50°±10°
Soldering235℃±5℃: ≤3s

Electrical specifications:


Temperature range-10℃~100℃
Rated power

Curve B: 0.5W

Other curve B: 0.25W

Max. operation voltage

Curve B: AC 500V

Other curve B: AC250V

Resistance tolerance± 20%
Resistance range1KΩ~2MΩ
Rotational noise≤ 47 mV
Residual resistanceR ≥ 250KΩ 0.1% max.
250KΩ> R> 10KΩ 20 Ω max
10KΩ ≥ R 10 Ω max
Resistance taperA,B,C
Switch contact resistanceLess than 30mΩ
DielectricAC500V for 1 minute
Rated switching powerAC125V 1A,4A,6A
Insulation resistanceMore than 100MΩ at DC250V

A wide variety of potentiometers exist. Manually adjustable potentiometers can be divided into rotary or linear movement types. The tables below list the available types and their applications of rotary potentiometer:


TypesDescriptionApplication
Single-turn potentiometerSingle rotation of approximately 270 degrees or 3/4 of a full turnMost common potentiometer, used in applications where a single turn provides enough control resolution.
Multi-turn potentiometerMultiple rotations (mostly 5, 10 or 20), for increased precision. They are constructed either with a wiper that follows a spiral or helix form, or by using a worm-gear.Used where high precision and resolution is required. The worm-gear multi turn pots are often used as trimpots on PCB.
Dual-gang potentiometerTwo potentiometer combined on the same shaft, enabling the parallel setting of two channels. Most common are single turn potentiometers with equal resistance and taper. More than two gangs are possible but not very common.Used in for example stereo audio volume control or other applications where 2 channels have to be adjusted in parallel.
Concentric potentiometerDual potmeter, where the two potentiometers are individually adjusted by means of concentric shafts. Enables the use of two controls on one unit.Often encountered in (older) car radios, where the volume and tone controls are combined.
Servo potentiometerA motorized potmeter which can also be automatically adjusted by a servo motor.Used where manual and automatic adjustment is required. Often seen in audio equipment, where the remote-control can turn the volume control knob.

The taper of a potentiometer is normally indicated with a letter. The following table lists the used coding for potentiometer taper, different standards uses the same letters which can be confusing. It is always a good idea to double check the taper by measurement.


TaperStringAsia (common)EuropeAmericaVishay
LinearLINBABA
Log / AudioLOGACAL
Anti-logFCF

Dimension:


China Pin Type Carbon Composition Potentiometer With Switch Dimmer Switch Speed Controller supplier

Pin Type Carbon Composition Potentiometer With Switch Dimmer Switch Speed Controller

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