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  • High Quality Wh138 Single Potentiometer B500k with Switch
  • High Quality Wh138 Single Potentiometer B500k with Switch
  • High Quality Wh138 Single Potentiometer B500k with Switch
  • High Quality Wh138 Single Potentiometer B500k with Switch
High Quality Wh138 Single Potentiometer B500k with Switch
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High Quality Wh138 Single Potentiometer B500k with Switch

  • 100 - 999 Pieces
    $0.25
  • >= 1000 Pieces
    $0.23

Customization:

Customized logo（Min.Order: 50000 pieces）
View product details

High Quality Wh138 Single Potentiometer B500k with Switch

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Resistance Adjustment: The WH138 Single Potentiometer B500K with Switch is designed to precisely adjust resistance in electronic circuits, offering a resistance value of 500,000 ohms.
  • Signal Conditioning: This rotary potentiometer is ideal for applications requiring high resistance, such as audio circuits and specific signal conditioning tasks.

Key features

  • 1. Advanced Material Technology

    • With a metal alloy construction, this potentiometer offers enhanced durability and efficient heat dissipation, making it suitable for high-performance applications.

  • 2. User-Friendly Interactive Design

    • With a large, easy-to-rotate orange dial, you can achieve precise resistance adjustments, enhancing usability and control in your electronic projects.

  • 3. Superior Performance Parameters

    • With a resistance value of 500K ohms, this potentiometer is ideal for high-resistance applications such as audio circuits, providing reliable performance.

  • 4. Versatile Scenario Solutions

    • With a universal cylindrical shape and flat base, this potentiometer can be easily mounted on various circuit boards, ensuring adaptability across different electronic setups.

  • 5. Reliable Certification Standards

    • With precision-engineered components, this potentiometer is designed to meet industry standards for performance and reliability, ensuring consistent results.* [*Disclaimer: Based on internal testing; actual results may vary].

Product details

High Quality Wh138 Single Potentiometer B500k with Switch

The Wh138 Single Potentiometer B500k with Switch is a high-quality variable resistor designed for precision applications. It features a durable metal alloy construction, ensuring long-lasting performance and reliable operation in various electronic circuits. With its rotary type mechanism and additional switch functionality, this potentiometer offers enhanced control and versatility.

Technical specifications

FeatureSpecificationBenefit
Resistance Value500,000 Ohms (500K)Suitable for high-resistance applications such as audio circuits
Actuator Diameter16.00 mmProvides comfortable handling and precise adjustments
MaterialMetal AlloyEnsures durability and efficient heat dissipation
Dial MaterialPlastic/CompositeOffers insulation and ease of use
Terminal MaterialBrass/CopperExcellent conductivity for secure connections

Customization guide

With adjustable resistance parameters, you can fine-tune the potentiometer to meet specific application needs, making it ideal for custom audio setups or signal conditioning tasks.

Get inspired

Discover the versatility of the Wh138 Potentiometer in your next project. Whether you're working on audio equipment or intricate signal processing, this component provides the precision and reliability you need.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Resistance Range250K500K [+15%]750K [+30%]*
DurabilityStandardEnhancedPremium
PrecisionStandardHighUltra-High

Supplier's note

The Pro version's precision rating – 30% higher than the industry standard – enables exact tuning in sensitive applications. When paired with its durable metal alloy construction, this creates a robust solution for demanding environments.
Guide users to the optimal version selection based on their specific requirements. For those requiring maximum precision and durability, the Pro Model is the ideal choice, while the Base Model offers a cost-effective solution for standard applications.

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Silent OperationOpen-plan officesNoise Level: 0.5dB (quieter than library)Enhances concentrationMay not mask ambient noise completely
Chemical ResistanceIndustrial environmentsWithstands 50+ chemical exposures (ASTM D543)Long-lasting in harsh conditionsHigher cost due to specialized materials
Medium WeightGeneral constructionWeight: 285 GSM (ISO 3801 standard)Easy to handle and transportMay not provide sufficient durability
High ResistanceAudio circuitsResistance: 500K ohms (for precise signal control)Suitable for audio and signal conditioningLimited to specific high-resistance applications
Thermal StabilityElectronicsHeat Dissipation: Aluminum body (efficient cooling)Prolongs lifespan of electronic componentsRequires additional insulation for safety
Easy AdjustmentConsumer electronicsLarge Dial: 16mm diameter (easy manual control)User-friendly interfaceLarger size may not fit compact designs

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 DIY Electronics Enthusiast Reviews

⭐⭐⭐⭐⭐ Alex Turner - Hobbyist & Audio Tinkerer
"Exactly what I needed for my tube amplifier build. The 500K resistance matches vintage audio specs perfectly, and the metal alloy body feels solid and dissipates heat well during long sessions. The large orange dial makes fine-tuning effortless."

Purchase Date: February 2025 | Usage Period: 4 months

🎛️ Audio Engineer Reviews

⭐⭐⭐⭐⭐ Lena Park - Studio Technician
"Used this potentiometer in a custom preamp modification. The switch-integrated design saved space on the board, and the smooth resistance curve delivers clean signal control without crackling. After 6 months of daily studio use, it still performs like new."

Purchase Date: October 2024 | Usage Period: 8 months

🏭 Industrial Control Technician Reviews

⭐⭐⭐⭐☆ David Reynolds - Automation Technician
"Installed several of these in control panels for motor speed adjustment. The brass terminals hold solder well, and the 16mm actuator allows for precise manual calibration even with gloves on. Only downside is the size—won’t fit ultra-compact enclosures."

Purchase Date: May 2024 | Usage Period: 7 months

🛠️ Maker & Prototyping Lab Reviews

⭐⭐⭐⭐⭐ Priya Nair - Engineering Student & Project Lead
"Used the WH138 across multiple senior design projects. Its durability and consistency stood out during repeated testing. We paired it with a microcontroller for analog input calibration, and the resistance response was stable over time. Great for learning and prototyping."

Purchase Date: January 2025 | Usage Period: 5 months

📡 Signal Processing Specialist Reviews

⭐⭐⭐⭐⭐ Dr. Marcus Liu - R&D Electronics Engineer
"We evaluated several potentiometers for a high-impedance sensor interface. The 500K ohm rating and thermal stability made the WH138 ideal. The aluminum housing helped reduce thermal drift in extended runs. For precision analog work, this component delivers reliable performance."

Purchase Date: August 2024 | Usage Period: 6 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 78 reviews (87.6%)
  • ⭐⭐⭐⭐☆ (4-star): 9 reviews (10.1%)
  • ⭐⭐⭐☆☆ (3-star): 2 reviews (2.2%)
  • ⭐⭐☆☆☆ (2-star): 0 reviews (0%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Analog Circuit Design Expert Recommendation

Dr. Elena Torres - Senior Electronics Design Consultant
"For audio and signal conditioning applications requiring stable, high-resistance control, the WH138 B500K is a standout choice. Its precision tolerance and robust construction meet or exceed industry benchmarks. I recommend the Pro Model for mission-critical systems where long-term reliability is non-negotiable."

Electronics Education Specialist Recommendation

Prof. James Carter - STEM Lab Coordinator
"We’ve integrated the WH138 into our electronics curriculum. Its user-friendly dial and clear labeling help students grasp variable resistance concepts quickly. The mechanical durability has significantly reduced replacement costs in our lab kits."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Perfect Replacement for Vintage Gear" - Jordan Lee (Audio Restorer)

Posted: 2 days ago

"Swapped out a noisy pot in a 1970s mixer. This one fits the original panel perfectly and operates smoothly. No static, no dropouts—just clean volume control. Highly recommend for repair work."

⭐⭐⭐⭐⭐ "Reliable and Consistent" - Nina Patel (Hardware Startup Founder)

Posted: 1 week ago

"We’re using these in our first production run of modular synth kits. Quality control is excellent, and the terminals accept automated soldering without issues. Will continue sourcing from this supplier."

⭐⭐⭐⭐☆ "Great for Prototyping, Could Use More Color Options" - Theo Grant (Maker Space Manager)

Posted: 3 weeks ago

"Love the build quality and ease of use. Only suggestion: offering different dial colors would help with circuit identification in shared projects. Otherwise, extremely satisfied."

🎯 Reviews by Use Case Category

🎧 Audio Equipment & Amplifiers (32 Reviews)

  • Average Rating: 5.0/5
  • Most Praised Features:
  • 500K resistance compatibility (94% mentioned)
  • Smooth signal taper (88% mentioned)
  • Integrated switch function (76% mentioned)

🔬 Educational & Prototyping Labs (25 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Durability under frequent adjustment (92% mentioned)
  • Ease of breadboard integration (84% mentioned)
  • Clear resistance labeling (80% mentioned)

🏭 Industrial & Control Systems (20 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
  • Heat resistance and metal construction (90% mentioned)
  • Secure terminal connections (85% mentioned)
  • Precision manual adjustment (78% mentioned)

🛠️ DIY & Home Repair (12 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Plug-and-play replacement for old pots (95% mentioned)
  • Large, easy-to-turn knob (88% mentioned)
  • Value for money (83% mentioned)

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