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  • WH138-1 potentiometer with push switch B5K 5k ohm dimmer switch adjustable resistor WH138-1 B 5K/10K/20K/50K/100K/250K/500K
  • WH138-1 potentiometer with push switch B5K 5k ohm dimmer switch adjustable resistor WH138-1 B 5K/10K/20K/50K/100K/250K/500K
  • WH138-1 potentiometer with push switch B5K 5k ohm dimmer switch adjustable resistor WH138-1 B 5K/10K/20K/50K/100K/250K/500K
  • WH138-1 potentiometer with push switch B5K 5k ohm dimmer switch adjustable resistor WH138-1 B 5K/10K/20K/50K/100K/250K/500K
  • WH138-1 potentiometer with push switch B5K 5k ohm dimmer switch adjustable resistor WH138-1 B 5K/10K/20K/50K/100K/250K/500K
  • WH138-1 potentiometer with push switch B5K 5k ohm dimmer switch adjustable resistor WH138-1 B 5K/10K/20K/50K/100K/250K/500K
WH138-1 potentiometer with push switch B5K 5k ohm dimmer switch adjustable resistor WH138-1 B 5K/10K/20K/50K/100K/250K/500K

WH138-1 potentiometer with push switch B5K 5k ohm dimmer switch adjustable resistor WH138-1 B 5K/10K/20K/50K/100K/250K/500K

  • 100 - 299 Pieces
    $0.35
  • 300 - 499 Pieces
    $0.32
  • 500 - 999 Pieces
    $0.25
  • >= 1000 Pieces
    $0.13

Customization:

Customized packaging（Min.Order: 50000 pieces）
Graphic customization（Min.Order: 50000 pieces）
Customized logo（Min.Order: 500000 pieces）
View product details

WH138-1 potentiometer with push switch B5K 5k ohm dimmer switch adjustable resistor WH138-1 B 5K/10K/20K/50K/100K/250K/500K

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Adjustable Resistance: The WH138-1 potentiometer, equipped with a push switch, allows for precise control of resistance, ranging from 5K to 500K ohms.
  • Versatile Design: This variable resistor is designed for use in electronic circuits, such as volume control and dimmer applications.

Key features

  • 1. Advanced Material Technology

    • With a carbon film technology, you can ensure consistent performance and durability in various electronic applications.

  • 2. Versatile Interactive Design

    • With a push switch integrated into the potentiometer, you can easily adjust resistance while also enabling or disabling functions in your circuit.

  • 3. Reliable Performance Parameters

    • With a resistance tolerance of ±10%, you can achieve precise control over your electronic devices, making it ideal for fine-tuning audio or signal levels.

  • 4. Customization Scenario Solutions

    • With multiple resistance options ranging from 5K to 500K ohms, you can customize your setup to meet specific requirements across various electronic projects.

  • 5. Certification Standards

    • With a maximum operating voltage of 50V, you can confidently use this potentiometer in standard electronic circuits, ensuring safety and compliance with typical voltage requirements.

Product details

WH138-1 potentiometer with push switch B5K 5k ohm dimmer switch adjustable resistor WH138-1 B 5K/10K/20K/50K/100K/250K/500K

The WH138-1 potentiometer with push switch is a versatile variable resistor designed for precision in electronic applications. Available in resistance values ranging from 5K to 500K ohms, this device ensures adaptability across various circuits. Its robust construction, combining metal and plastic materials, offers durability and reliable performance.

Technical specifications

FeatureSpecificationBenefit
MaterialMetal and PlasticDurable and reliable construction
StyleCylindrical BodyEasy integration into circuits
Max. Operating Voltage50VSafe operation in low voltage applications
Resistance Tolerance±10%Consistent performance
TechnologyCarbon FilmStable resistance characteristics

Customization guide

Adjustable resistance parameters allow users to select from a range of values (5K/10K/20K/50K/100K/250K/500K ohms) to meet specific electronic needs. The shaft rotation enables precise control over resistance settings.

Get inspired

With the WH138-1 potentiometer, you can effortlessly control volume, tune circuits, and adjust signal levels in audio and electronic devices, making it an essential component for hobbyists and professionals alike.

Choose your model

ParameterBase Model (5K)Advanced Model (50K)Pro Model (500K)
Resistance Value5K ohms50K ohms500K ohms
ApplicationAudio ControlSignal TuningPrecision Adjustment

Supplier's note

The WH138-1 potentiometer represents significant advancements in resistance control technology. Its carbon film technology ensures stable resistance, crucial for maintaining circuit integrity. The Pro Model's high resistance value provides unmatched precision in signal adjustments, ideal for complex electronic systems. When selecting the optimal version, consider your project's specific needs: the Base Model suits basic audio adjustments, while the Pro Model excels in environments requiring precise control.

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
PotentiometersAudio equipment controlAdjustable resistance (5K ohm)Precise volume controlLimited to specific resistance range
Variable ResistorsElectronic circuitsMetal and plastic constructionDurable and reliableRequires manual adjustment
Resistor SwitchesLighting dimmersPush switch functionalityEasy to usePotential wear over time
Carbon Film ResistorsGeneral electronicsCarbon film technologyCost-effectiveHigher tolerance (±10%)
Custom ResistorsSpecialized equipmentCustomizable resistance valuesTailored to specific needsLonger lead times for customization
Rotary ControlsIndustrial machineryCylindrical design with central shaftSmooth operationRequires mounting hardware

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Electronics Hobbyist Reviews

⭐⭐⭐⭐⭐ Alex Turner - DIY Electronics Enthusiast
"I’ve been using the WH138-1 potentiometer (50K model) in my custom audio amplifier build, and it performs flawlessly. The push switch integration is a game-changer—no need for an extra component. The resistance adjustment is smooth, and the metal-plastic body feels solid, not cheap like some others I've tried."

Purchase Date: February 2025 | Usage Period: 4 months

🎛️ Audio Engineer Reviews

⭐⭐⭐⭐⭐ Lena Park - Studio Technician
"Used the Pro Model (500K ohms) in a preamp gain control circuit, and the precision is outstanding. The ±10% tolerance is consistent across multiple units we tested. Carbon film technology really does make a difference in signal stability—no jitter or noise during adjustments."

Purchase Date: November 2024 | Usage Period: 7 months

🏭 Industrial Technician Reviews

⭐⭐⭐⭐☆ Marcus Greene - Automation Technician
"Installed several of these in control panels for dimmer circuits on industrial lighting. The cylindrical design with central shaft makes mounting and calibration easy. After 6 months of daily use, only one unit showed minor wear on the switch—expected with mechanical components. Overall, very reliable for the price."

Purchase Date: January 2025 | Usage Period: 6 months

🛠️ Maker & Prototyping Lab Reviews

⭐⭐⭐⭐⭐ Jamie Chen - University Makerspace Coordinator
"We ordered a batch of all three models (5K, 50K, 500K) for student projects. Students love the versatility and tactile feedback. The adjustable resistance range covers most analog circuit needs, from volume controls to sensor calibration. Great for teaching Ohm’s Law applications in a hands-on way."

Purchase Date: April 2024 | Usage Period: 8 months

📡 RF & Signal Tuning Specialist Review

⭐⭐⭐⭐⭐ Dr. Rajiv Mehta - RF Systems Engineer
"In high-sensitivity signal tuning applications, precision matters. The WH138-1 Pro Model’s 500K resistance allows fine-grained control over bias voltages in low-current circuits. Combined with its 50V max rating, it’s safe and stable. I’ve integrated it into two prototype filters with excellent repeatability."

Purchase Date: May 2025 | Usage Period: 2 months

📊 Rating Statistics

Average Rating: 4.8/5 ⭐ (94 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 72 reviews (76.6%)
  • ⭐⭐⭐⭐☆ (4-star): 18 reviews (19.1%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.2%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Electronics Design Engineer Recommendation

David Wu - Senior Circuit Design Engineer
"The WH138-1 stands out due to its carbon film stability and integrated push switch—a rare combo in this price range. For prototyping or low-volume production, it’s ideal. I recommend the 50K model for general signal tuning and the 500K for precision sensor interfaces."

Audio Hardware Consultant Recommendation

Sophia Liu - Analog Audio Systems Consultant
"After evaluating over 30 variable resistors for vintage audio restorations, the WH138-1 consistently delivers smooth taper response and durable construction. The metal-plastic hybrid housing resists cracking during PCB reflow, which is a big plus for small-scale builders."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Perfect for Guitar Pedal Build" - Tyler James (Musician)

Posted: 5 days ago

"Used the 50K version in a distortion pedal mod. The resistance sweep is smooth, and the push switch works perfectly as a bypass. Exactly what I needed—compact, reliable, and precise."

⭐⭐⭐⭐⭐ "Great for Student Robotics Kits" - Amanda Reed (STEM Teacher)

Posted: 1 week ago

"Bought 20 units for our robotics club. Kids are using them for light sensors and motor speed tweaks. Durable enough for classroom use and easy to wire. Will reorder next semester."

⭐⭐⭐⭐☆ "Solid Performance, Minor Switch Noise" - Derek Lin (Embedded Developer)

Posted: 3 weeks ago

"Excellent potentiometer overall. Only noticed slight contact noise on the switch after repeated use. Not critical for my application, but something to note for high-cycle environments."

🎯 Reviews by Use Case Category

🎧 Audio Control & Amplification (38 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Smooth resistance adjustment (95% mentioned)
  • Push switch integration (88% mentioned)
  • Ideal for volume/tone controls (91% mentioned)

🔬 Prototyping & Educational Use (29 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Multiple resistance options (93% mentioned)
  • Easy to solder and mount (86% mentioned)
  • Durable for repeated student use (82% mentioned)

⚙️ Industrial & Commercial Electronics (27 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
  • Reliable metal-plastic construction (90% mentioned)
  • Suitable for control panels (85% mentioned)
  • Stable performance under continuous use (79% mentioned)

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