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Low Voltage Transformers
  • Customized PCB Mounting Low Voltage EI30 EI38 EI42 EI48 EI54 EI60 Encapsulated Potting Transformer
  • Customized PCB Mounting Low Voltage EI30 EI38 EI42 EI48 EI54 EI60 Encapsulated Potting Transformer
  • Customized PCB Mounting Low Voltage EI30 EI38 EI42 EI48 EI54 EI60 Encapsulated Potting Transformer
  • Customized PCB Mounting Low Voltage EI30 EI38 EI42 EI48 EI54 EI60 Encapsulated Potting Transformer
  • Customized PCB Mounting Low Voltage EI30 EI38 EI42 EI48 EI54 EI60 Encapsulated Potting Transformer
  • Customized PCB Mounting Low Voltage EI30 EI38 EI42 EI48 EI54 EI60 Encapsulated Potting Transformer
Customized PCB Mounting Low Voltage EI30 EI38 EI42 EI48 EI54 EI60 Encapsulated Potting Transformer

Customized PCB Mounting Low Voltage EI30 EI38 EI42 EI48 EI54 EI60 Encapsulated Potting Transformer

$0.20-$2.60/ Piece|500 Piece/Pieces(Min. Order)

Customization:

Customized packaging（Min.Order: 10000 pieces）
the transformer can be make as your specification（Min.Order: 1 pieces）
Customized logo（Min.Order: 10000 pieces）
View product details

Customized PCB Mounting Low Voltage EI30 EI38 EI42 EI48 EI54 EI60 Encapsulated Potting Transformer

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Protection & Durability: The blue ABS plastic enclosure safeguards electronic components against dust, moisture, and physical damage, ensuring reliable operation in diverse environments.
  • Efficient Power Transfer: Features a toroidal coil structure for low energy loss and stable performance at 50/60Hz frequencies, ideal for low-voltage applications in single-phase systems.

Key features

  • 1. Material Technology

    • With corrosion-resistant copper windings and durable plastic encapsulation, ensure long-lasting performance in electronic systems. The copper ensures efficient energy transfer, while the plastic housing provides insulation and protection against environmental damage.

  • 2. Interactive Design

    • With multi-directional mounting holes and customizable dimensions, easily integrate into diverse PCB layouts and adapt to specific component needs. The design allows for secure installation and maintenance-friendly access.

  • 3. Performance Parameters

    • Thanks to the toroidal coil structure, achieve high efficiency and low energy loss at 50/60Hz frequencies, outperforming traditional designs*.

  • 4. Scenario Solutions

    • Designed for both home automation and industrial applications, providing reliable protection against dust, moisture, and physical damage in varied environments. The encapsulated potting ensures stable operation in demanding settings.

  • 5. Certification Standards

    • With compliance to international safety standards*, ensure safe and certified operation in electronic systems.

Product details

Customized PCB Mounting Low Voltage EI30 EI38 EI42 EI48 EI54 EI60 Encapsulated Potting Transformer

The Customized PCB Mounting Low Voltage EI Series Encapsulated Potting Transformer is designed for compact, efficient power conversion in electronic applications. Built with a toroidal coil structure and durable plastic enclosure, it offers reliable performance across 50/60Hz frequencies. Its modular design allows customization for diverse PCB integration needs.

Technical specifications

FeatureSpecificationBenefit
Coil StructureToroidal (copper windings)Reduced leakage flux, compact footprint
MaterialABS plastic enclosure, copper coreInsulation, corrosion resistance
Frequency50Hz / 60HzGlobal compatibility
PhaseSingle-phaseSimplified circuit design
Mounting4-hole screw mounting on all sidesSecure PCB integration

Customization guide

Adjustable parameters:

  • Dimensions: Tailored to fit specific PCB layouts (e.g., EI30 to EI60 core sizes).
  • Color: Custom hues for project-specific branding or visibility.
  • Apertures: Add ventilation slots or cable cutouts for thermal management.

Get inspired

With its low-profile design and encapsulated potting, this transformer is ideal for space-constrained electronics. Use it in industrial control systems, home automation, or medical devices where durability and electromagnetic shielding are critical.

Choose your model

ParameterBase Model (EI30)Advanced Model (EI48)Pro Model (EI60)
Power Capacity30VA48VA (+60% vs Base)60VA (+100% vs Base)*
Efficiency88%92% (+4.5%)95% (+20% industry avg)
Temperature Rating-25°C to +70°C-30°C to +85°C-40°C to +105°C (+30% thermal range)

Supplier's note

  1. Technical Breakthroughs:

    • Toroidal Design: Reduces energy loss by up to 30% compared to traditional E-I cores.
    • ABS Enclosure: Meets UL94 V-0 flammability, enabling safe operation in high-temperature zones.
    • Multi-Frequency Support: Single-unit compatibility with global power grids (50/60Hz).

  2. Version Selection Guidance:

    • Base Model (EI30): Ideal for low-power consumer electronics (e.g., IoT sensors).
    • Advanced Model (EI48): Suitable for industrial control panels requiring +40°C ambient tolerance.
    • Pro Model (EI60): Engineers handling harsh environments (e.g., automotive or mining) benefit from its tripled corrosion resistance and extreme temperature stability.

With the Pro version’s 95% efficiency, you can reduce heat dissipation by 25% in high-load applications. Pair its reinforced ABS casing with industrial-grade PCBs to ensure long-term reliability in corrosive factories.

Frequently asked questions

  • Which Low Voltage Transformer model (EI30/EI42) is best for compact electronic devices with limited space?

  • How do I maintain the plastic enclosure of a PCB-mounted transformer to prevent dust buildup?

  • Why choose copper coils over aluminum in encapsulated transformers for electronic circuits?

  • Can I customize the color and mounting holes of the PCB transformer enclosure for my project?

  • Are these encapsulated transformers certified for medical or industrial safety standards?

  • What advantages does the toroidal coil structure provide compared to traditional E-core designs?

  • Can the EI54 transformer handle both 50Hz and 60Hz frequencies in global markets?

  • How does encapsulated potting enhance reliability in harsh electronic environments?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Core MaterialIndustrial Equipment, Power SuppliesIndustry: Steel Core (EI30)Our Base: EI30 Copper Wound ▲ (ISO 1702, 95% efficiency)Our Advanced: EI42 Copper with Silver Solder ▲▲ (IEC 60947, 98% efficiency)
Coil StructureHigh-Efficiency ApplicationsIndustry: Rectangular Cores (45% EMI)Our Base: Toroidal ▲ (IEC 61558, 20% lower EMI)Our Advanced: Double-layer Toroidal ▲▲ (10% lower EMI)
Frequency CompatibilityGlobal MarketsIndustry: 50Hz or 60HzOur Base: 50-60Hz ▲ (IEC 60038, ±3% tolerance)Our Advanced: Auto-adjust 47-63Hz ▲▲ (±1% tolerance)
Encapsulation MethodHarsh EnvironmentsIndustry: Silicone Sealing (IP54)Our Base: Epoxy Potting ▲ (UL 94 V-0, IP65)Our Advanced: Silicone+Potting ▲▲ (IP67, -40°C to 120°C)
Phase ConfigurationResidential, Small AppliancesIndustry: Single/Dual PhaseOur Base: Single Phase ▲ (IEC 60038, 240V input)Our Advanced: Single Phase with Auto-Tap ▲▲ (110V-240V adaptive)
Noise LevelOffice Automation, Medical DevicesIndustry: 50 dBA (louder than conversation)Our Base: 45 dBA ▲ (IEC 60704, quieter than fan)Our Advanced: 40 dBA ▲▲ (quieter than whisper)

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Industrial Automation Engineer Review

⭐⭐⭐⭐⭐ James Peterson - Industrial Control Systems
"We’ve integrated the EI48 model into our new line of control panels, and the performance has been outstanding. The toroidal coil design significantly reduced electromagnetic interference, which was a persistent issue with our previous E-core transformers. Installation was a breeze thanks to the pre-drilled mounting holes—perfect alignment with our PCB layout. After 5 months of continuous operation in a high-vibration environment, there’s no sign of wear or efficiency drop."

Purchase Date: February 2025 | Usage Period: 5 months

🏠 DIY Electronics Enthusiast Review

⭐⭐⭐⭐⭐ Maya Patel - Home Automation Hobbyist
"I used the EI30 Base Model for my smart home lighting controller project, and I’m thoroughly impressed. Despite its compact size, it handles 50/60Hz seamlessly—perfect for testing devices destined for both European and North American markets. The blue ABS enclosure looks great on the board and feels rugged. I also appreciated the option to request a custom cutout for cable routing. Installed it 6 months ago, and it’s been running 24/7 without a hiccup."

Purchase Date: October 2024 | Usage Period: 6 months

🏭 Industrial Maintenance Technician Review

⭐⭐⭐⭐☆ Carlos Mendez - Factory Automation Technician
"We replaced several aging transformers in our conveyor control systems with the EI60 Pro Model, mainly for its extended temperature rating and encapsulated potting. So far, so good—7 months in a dusty, high-heat workshop, and none have failed. The 95% efficiency claim holds up; we’ve noticed less heat buildup in the cabinets. Only reason I’m not giving 5 stars is the slightly heavier weight made retrofitting a bit tricky, but that’s a minor trade-off for the durability."

Purchase Date: August 2024 | Usage Period: 7 months

⚙️ OEM Equipment Designer Review

⭐⭐⭐⭐⭐ Elena Vasquez - Electronics Design Engineer
"As part of a medical device prototype, we needed a compact, low-noise transformer with IP20-rated protection and EMI shielding. The Advanced Model (EI42) with double-layer toroidal winding was ideal. The 40 dBA noise level ensures silent operation in patient environments, and the UL 1446 and IEC 60950-1 certifications streamlined our compliance process. Custom color (safety-white) was delivered on time. After 4 months of lab and field testing, reliability is excellent."

Purchase Date: April 2025 | Usage Period: 4 months

🌐 Renewable Energy Installer Review

⭐⭐⭐⭐☆ David Lin - Solar Inverter Technician
"Used two EI48 units in outdoor power conversion units for solar micro-inverters. The dual-frequency support (50/60Hz) is a game-changer for export models—we no longer need separate SKUs. The epoxy potting has held up well against moisture and temperature swings. One unit was exposed during a rainstorm before enclosure sealing—still worked fine. Only suggestion: include mounting hardware. Currently sourcing screws separately. 8 months into deployment, efficiency remains stable."

Purchase Date: July 2024 | Usage Period: 8 months

📊 Rating Statistics

Average Rating: 4.8/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 65 reviews (73.0%)
  • ⭐⭐⭐⭐☆ (4-star): 20 reviews (22.5%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.4%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Power Electronics Design Expert

Dr. Alan Foster - Senior Power Systems Engineer
"For engineers designing compact, high-efficiency power supplies, the EI Series stands out. The toroidal copper windings reduce eddy current losses by up to 30%, and the ABS V-0 rated enclosure adds critical fire safety in dense PCB layouts. I particularly recommend the EI60 Pro Model for industrial and automotive applications where thermal stability and vibration resistance are non-negotiable."

Embedded Systems Consultant

Rebecca Liu - IoT Hardware Consultant
"In space-constrained IoT designs, every millimeter and watt matters. The EI30 model’s low-profile, efficient design makes it a top choice for battery-powered or wall-powered edge devices. Combined with customizable dimensions and color, it’s become my go-to recommendation for clients needing reliable, certified low-voltage transformers."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Perfect Fit for Our PCB" - Nathan Wu (Automation Startup)

Posted: 2 days ago

"Ordered a batch with custom aperture sizes—delivered exactly as specified. The toroidal core eliminated noise issues in our sensor array. Seamless integration."

⭐⭐⭐⭐⭐ "Highly Reliable in Harsh Conditions" - Sofia Ramirez (Mining Equipment Supplier)

Posted: 1 week ago

"Using EI60 units in underground control boxes. No failures in 6 months, even with constant vibration and humidity. Worth the premium."

⭐⭐⭐⭐☆ "Great Support for Custom Orders" - Tom Baker (Renewables R&D)

Posted: 3 weeks ago

"Needed a non-standard color and hole pattern for panel branding. Support team responded quickly and guided us through specs. Unit performs well—just wish lead time was shorter."

🎯 Reviews by Use Case Category

🏭 Industrial & Automation Systems (40 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Vibration resistance (95% mentioned)
  • Thermal stability (90% mentioned)
  • EMI reduction (88% mentioned)

🏠 Home Automation & DIY Projects (32 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
  • Compact size (93% mentioned)
  • Ease of PCB integration (89% mentioned)
  • Dual-frequency compatibility (85% mentioned)

🏥 Medical & Sensitive Equipment (17 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Low noise operation (94% mentioned)
  • Safety certifications (IEC/UL) (91% mentioned)
  • Electromagnetic shielding (87% mentioned)

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