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Stable Efficient PQ3535 High Frequency Transformer for LLC Power Converter
High-Power Magnetic Excellence
The PQ3535 Series High-Frequency Transformer stands as a premier solution for high-density power electronics, specifically engineered to bridge the gap between mid-range power delivery and large-scale industrial energy conversion. The "PQ" (Power Quality) geometry offers an optimized balance between core volume, surface area for heat dissipation, and a circular center leg that maximizes winding efficiency.
Strategic Selling Points
Optimized Power-to-Size Ratio: Larger winding window and effective core area compared to traditional EE or EI cores of similar dimensions
Superior EMI Containment: Semi-closed core geometry acts as a natural magnetic shield, reducing radiated electromagnetic interference
LLC Resonant Topology Optimization: Engineered for resonant tank circuits with precise leakage inductance and high-quality factor
High-Grade Mn-Zn Ferrite Core: Premium low-loss ferrite materials maintaining high saturation flux density at temperatures exceeding 100°C
Professional Insulation System: Multi-layer high-temperature tapes and reinforced insulation leads with dielectric isolation up to 4500V AC
Advanced Thermal Dissipation: Circular center leg and open-sided bobbin structure facilitate natural air convection
Technical Specifications
Technical Parameter
Standard Industrial Range / Value
Product Model
CHIPSEN PQ3535 High-Power Series
Core Material Selection
High-Grade Mn-Zn Ferrite (PC40 / PC44 / PC95)
Inductance Range (L)
50µH - 100mH (Customizable per Topology)
Operating Frequency
40kHz - 500kHz (High-Speed Switching)
Output Power Range
150W - 450VA (LLC / Flyback / Forward)
Isolation Voltage (Hi-Pot)
3000V AC - 4500V AC (Pri to Sec / 1 min)
Insulation Resistance
>100MΩ @ 500V DC
Leakage Inductance
<1.0% - 2.0% of Primary (Optimized for LLC)
DC Resistance (DCR)
Minimum Possible (Winding Specific)
Operating Temperature
-40°C to +125°C (Including Rise)
Flammability Rating
UL94 V-0 (Bobbin & Tape)
Mounting Configuration
Vertical Through-Hole (THT) / 6+6 Pins
Compliance Status
RoHS, REACH, CE, Global Safety Standards
Engineering Insight
The Mn-Zn Ferrite Core Selection ensures the transformer exhibits a flat power loss curve across a wide temperature range. In high-efficiency LLC resonant converters, the Leakage Inductance is a critical circuit parameter, allowing the transformer to act as the resonant inductor itself, reducing total component count. The Dielectric Strength of up to 4500V makes this transformer suitable for stringent medical and industrial safety environments.
Advanced Manufacturing Advantages
PQ Geometry Performance
The circular center leg allows copper wire to follow a natural path with the shortest possible length per turn, reducing DC resistance and minimizing copper losses for significantly higher efficiency and cooler operation.
Precision Winding Architecture
Multi-strand Litz wire or high-insulation secondary leads combat Skin Effect and Proximity Effect at high frequencies. CNC multi-axis winding machines ensure consistent tension and minimized parasitic capacitance for stable operation above 100kHz.
Resin Impregnation Process
Vacuum varnish cycle replaces air pockets with dielectric resin, creating a moisture-proof, vibration-resistant unit that eliminates audible noise from magnetostriction during load shifts.
Automated Quality Verification
High-resolution cameras verify bobbin integrity and pin alignment, followed by full electrical sweep testing under full-load conditions to ensure consistent performance and reduce total cost of ownership.
Industry Applications
Industrial Automation
Primary choice for 300W-450W industrial DC-DC converters, PLC rack supplies, and DIN-rail mount rectifiers. Robust isolation and thermal stability ensure stable power in harsh industrial environments with electrical surges and high ambient heat.
Medical Device & Imaging
Prized for high dielectric isolation (4500V AC) and low EMI signature. Enables compact, bedside medical units that are safe and lightweight while preserving accuracy of delicate analog physiological sensors.
Telecommunications & Computing
Supports high-efficiency AC-DC converters for 5G base stations and data centers. Low core loss at high frequencies contributes to improved Power Usage Effectiveness (PUE) ratios for energy cost reduction.
Renewable Energy & Smart Grid
Provides stable power for solar micro-inverters, battery management systems, and EV charging station modules. Moisture-proof encapsulation and high thermal mass ensure reliability in extreme outdoor conditions.
About CHIPSEN Electronics
Chipsen Electronics is a professional manufacturer specializing in high-performance transformers and magnetic components, with over 26 years of manufacturing expertise. Founded in 2000, we operate 4 production bases covering over 7,200 square meters with 400+ skilled employees.
Certifications & Capabilities
ISO9001, ISO14001, IATF16949 certified with UL Class B/F/H, CQC, RoHS and REACH approvals. Hold 36+ utility patents with robust in-house R&D team providing targeted solutions for temperature reduction, noise cancellation and coupled radiation conductivity.
Company Advantages
Full Service Customization: Rapid design support within 24-48 hours based on your specifications
Extensive Product Portfolio: 200+ product types including transformers, inductors, filters, and common mode chokes
Advanced Manufacturing: Automated winding and assembly machines improving efficiency by 8x
Strict Quality Control: 100% testing including electrical performance, insulation, and reliability tests
High Voltage Expertise: Specialized in 5KV to 40KV high voltage transformers
Flexible MOQ & Fast Lead Time: Prototype to bulk production with 7-15 day lead times
OEM/ODM Supported: Competitive factory direct pricing
Frequently Asked Questions
How long does it take to prepare samples?
3-5 days for new samples, 1 day for samples in stock.
How are samples shipped?
When customers cover freight costs, we help choose the most economical shipping method.
Do you provide technical support for customized products?
Yes, our strong R&D team provides free technical support for customizations in voltage, power, inductance, dimensions, core materials, and more.
Do you accept flexible minimum order quantities?
We support flexible MOQ based on your industry and product requirements. Please share your application areas and estimated annual usage.
Can you ensure proper packaging for large sea shipments?
Yes, we provide goods packed in strong export cartons, on wooden pallets, and shrink-wrapped for protection.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2007
Total Annual:
28820000-29820000
Employee Number:
400~450
Ecer Certification：
Verified Supplier
Chipsen Electronics - Supplier to Fortune Global 500 Companies
Magnetic Components Engineered for Performance & Reliability
Founded in 2007, Dongguan Chipsen Electronics Technology Co., Ltd. is a professional manufacturer specializing in magnetic components and micro switches.
...
Chipsen Electronics - Supplier to Fortune Global 500 Companies
Magnetic Components Engineered for Performance & Reliability
Founded in 2007, Dongguan Chipsen Electronics Technology Co., Ltd. is a professional manufacturer specializing in magnetic components and micro switches.
...
