Custom Core EQ40 Planar Transformer For DC-DC Converters Telecom Power Supply
Price:
$20 - 36/ Piece,1000-10000pcs
MOQ:
100PCS
Delivery Time:
15-22 wark days
Brand:
CHIPSEN
Product Description
Custom Core EQ40 Planar Transformer for DC-DC Converters Telecom Power Supply
Product Introduction
The EQ40 Planar Transformer is a high-performance magnetic component developed by Dongguan Jianyanda Electronics Co., Ltd. specifically to meet high-power-density requirements. Featuring a low-profile planar core and flat winding design, this product delivers exceptionally high conversion efficiency and superior thermal conductivity. Engineered for modern lightweight, high-efficiency power systems, it significantly reduces equipment footprint while enhancing overall operational reliability.
| Category | Parameter Name | Standard Model Specs (NTE040-450-17235) | Customizable Range & Capabilities |
|---|---|---|---|
| Electrical | Rated Power | 3.0 kW - 5.0 kW | 500 W - 10.0 kW+ (Depending on Cooling) |
| Electrical | Operating Frequency | 100 kHz - 300 kHz | 50 kHz - 1.0 MHz |
| Electrical | Input Voltage (Primary) | 400 VDC (Nominal) | 100 VDC - 800 VDC |
| Electrical | Output Voltage (Secondary) | 12 VDC / 24 VDC / 48 VDC | 1.2 VDC - 100 VDC+ (Multi-Outputs Supported) |
| Electrical | Turns Ratio | 45 : 1 : 1 | Custom Ratio (e.g., 4:1, 12:1, 38:2) |
| Electrical | Primary Inductance (Lp) | 450 µH ± 10% | 10 µH - 2.0 mH |
| Electrical | Leakage Inductance (Lk) | < 1.0 µH (Low Leakage) | 0.1 µH - 5.0 µH (Custom/Integrated Leakage) |
| Electrical | Power Conversion Efficiency | ≥ 98.5% | Up to 99.2% |
| Electrical | Supported Topology | LLC Resonant / Full-Bridge | LLC, Full-Bridge, Half-Bridge, Push-Pull, Flyback |
| Mechanical | Core Geometry & Size | EQ40 / 10 / 32 | EQ20 / EQ30 / EQ40 / EQ50 / PQ Series |
| Mechanical | Winding Structure | Flat Copper Foil / Multi-layer PCB | Heavy Copper PCB / Flat Wire / Triple Insulated Wire |
| Mechanical | Terminal / Lead Style | Heavy Current Copper Busbars | Surface Mount (SMD), Through-Hole (THT), Flying Leads |
| Mechanical | Dimensions (L x W x H) | 42.0 x 40.0 x 22.0 mm | Custom Height & Footprint Options Available |
| Thermal & Safety | Insulation Class | Class F (155°C) / Class H (180°C) | Class B (130°C) to Class N (200°C) |
| Thermal & Safety | Dielectric Isolation (Hi-Pot) | 3000 VAC / 1 Minute | 1500 VAC - 4000 VAC / 5000 VDC |
| Thermal & Safety | Creepage & Clearance | > 6.0 mm | Up to 8.0 mm+ (Medical & Industrial Grade) |
Product Features
Ultra-Low Profile Design
Compact, flat structure that substantially reduces system height and volume.
High Power Density & Efficiency
Ultra-low leakage inductance and AC resistance, providing excellent heat dissipation and energy conversion efficiency.
High Consistency & Reliability
Standardized, automated manufacturing processes ensure highly consistent electrical parameters across production batches.
Comprehensive Safety Insulation
Complies with stringent international safety standards, covering Class B/F/H insulation grades.
Product Applications
- New Energy & Energy Storage: Photovoltaic (PV) inverters and EV charging piles/stations
- Industrial & Telecom: High-power industrial power supplies and telecom base station power systems
- Smart Manufacturing & Medical: Robotic manufacturing equipment and medical device power modules
Product & Company Advantages
Product Advantages
- Comprehensive Safety Certifications: Supports major global certifications including UL/cUL, VDE, CB, and CQC, assisting end products in gaining rapid entry into global markets
- High-Performance Customization: Backed by 36 technical patents, enabling rapid custom designs tailored to client circuit specifications
- Rigorous Reliability Testing: Passes full reliability testing—including salt spray, constant temperature/humidity, glow wire, and ball pressure tests—to ensure long-term stability under extreme operating conditions
Company Advantages
- Certified Enterprise Qualifications: Established in 2007, a National High-Tech Enterprise and Specialized "Little Giant" Enterprise certified with ISO9001, ISO14001, and IATF16949 system standards
- Scalable Global Delivery: Operates three manufacturing bases in Dongguan, Nanchang, and Vietnam equipped with advanced automation, ensuring strong delivery capabilities and effective cost management
- Professional R&D & Service: Equipped with an in-house engineering team and advanced precision testing equipment (such as Agilent impedance analyzers and HP high-frequency testers), providing complete support from initial design to post-sales service


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Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Dongguan Chipsen Electronics Technology Co., Ltd.
Location
No. 234, Changhuang Road, Changping Town, 523586, Dongguan, Guangdong, China
Contact Person
Nick Cheng