1.5kW Low Loss PQ5033 High Frequency Power Frequency Transformer For EV Charger OBC
Price:
US$1.99-4.69
MOQ:
100pcs
Delivery Time:
3~4 Weeks
Brand:
Chipsen
Product Description
Custom 1.5kW Low Loss PQ5033 High Frequency Planar Transformer for EV Charger OBC
Key Advantages
- Planar PCB Winding — Repeatable Electrical Performance: Winding geometry is fixed by the PCB artwork, so leakage inductance and turns ratio are virtually identical unit to unit — critical for LLC resonant tank tuning in mass production.
- Low Loss at High Frequency: Wide flat conductors minimize skin and proximity effect, keeping AC resistance low in the 100 kHz–500 kHz range where round-wire designs start to heat up.
- Dual PQ5033 Core Set — High Power Density: Paired ferrite cores share the flux and thermal load, supporting continuous 1.5 kW throughput in a compact package.
- Copper Clip Terminals: Heavy-gauge tinned copper clips carry high primary/secondary current with minimal terminal loss, and provide a robust mechanical joint under automotive vibration.
- Superior Thermal Behaviour: The large flat surface area of the planar structure conducts heat directly into the PCB and heatsink, giving a lower hot-spot temperature than a wound bobbin of the same rating.
- UL Recognized Materials: Constructed with UL-listed insulation and core materials, UL File No. E332338.
- Fully Custom Engineered: Turns ratio, layer stack-up, magnetizing and leakage inductance, terminal layout and core gap all designed to your converter topology.
Technical Specifications
| Product Type | High Frequency Planar Transformer |
|---|---|
| Model Number | PQ5033 (MTPQI5033-201-18535) |
| Rated Power | 1.5 kW (continuous, forced-air cooled) |
| Core Type / Set | Dual PQ5033 Ferrite Core Set |
| Core Material | Low-loss high-frequency ferrite (PC95 / DMR95 class) |
| Winding Structure | Multilayer PCB planar winding, pure copper foil |
| Terminal Type | Tinned copper clip terminals, PCB mounting |
| Operating Frequency | 100 kHz – 500 kHz |
| Topology Compatibility | LLC Resonant / Phase-Shift Full Bridge / DAB |
| Turns Ratio | Customized to customer specification |
| Insulation Class | Class F (155 °C) / Class H (180 °C) available |
| Dielectric Strength | 3000 VAC / 1 min (Primary – Secondary) |
| Temperature Rise | ≤ 40 K at rated load |
| Operating Temperature | −40 °C ∼ +125 °C |
| Safety Reference | UL File No. E332338 (recognized component materials) |
| Customization | OEM / ODM accepted, designed to customer drawing |
| Place of Origin | China |
Planar vs. Conventional Wound Transformer
| Item | Planar (this product) | Conventional Wound |
|---|---|---|
| Profile Height | Low, fits slim OBC housings | Tall bobbin structure |
| AC Loss @ HF | Low — wide flat conductor | Higher skin / proximity loss |
| Parameter Consistency | Excellent, defined by PCB artwork | Depends on winding operator |
| Thermal Dissipation | Large flat surface, easy heatsinking | Heat trapped inside bobbin |
| Leakage Inductance | Low and tightly controlled | Larger spread batch to batch |
Typical Applications
● EV On-Board Charger (OBC)
● DC-DC Converter Modules
● DC EV Charging Piles
● LLC Resonant Power Supplies
● Server & Telecom Power Modules
● Energy Storage & PV Micro-Inverters
Custom Design Process
- Share your requirement — topology, input/output voltage, power, switching frequency, height limit.
- Design proposal — our magnetics engineers return core selection, layer stack-up, turns ratio and expected loss/temperature rise.
- Sample build & test — prototype with full test report (Lm, Lk, turns ratio, DCR, Hi-Pot).
- Design freeze & mass production — controlled process, batch traceability, 100% electrical testing.
Packaging & Delivery
- Inner packing: anti-static bag / partition tray
- Outer packing: 5-layer export carton, wooden pallet on request
- Sample lead time: 10 – 15 working days (custom design)
- Mass production: 20 – 30 working days after design freeze
- Trade terms: EXW / FOB / CIF
FAQ
Q1: Can you design the planar transformer to our OBC schematic?
Yes. Send us the topology, input/output specification, switching frequency and mechanical height limit, and we will return a full design proposal with calculated loss and temperature rise.
Q2: Is the PCB winding included, or do we integrate it into our main board?
Both options are supported. We can supply the transformer as a complete assembly with its own winding PCB and copper clip terminals, or design the winding layers for integration into your motherboard.
Q3: What leakage inductance tolerance can you hold?
Because the winding geometry is defined by the PCB, leakage inductance spread is far tighter than a hand-wound part. The exact tolerance is confirmed on the approved sample and controlled in production.
Q4: What test reports do you provide?
Magnetizing inductance, leakage inductance, turns ratio, DCR, Hi-Pot and temperature-rise data can be supplied with each shipment on request.
Send us your OBC specification today — our planar magnetics engineers will reply with a custom design proposal and quotation within 24 hours.
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Get in Touch
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