Power EV Charger Cores for 400V/800V Systems
Advanced nanocrystalline cores engineered for EV charging infrastructure, PFC chokes, and high-power switching applications. Featuring precision air gaps, high-temperature operation up to 155°C, and optimized magnetic properties for 800V EV systems and DC fast charging stations.
These nanocrystalline power cores for EV chargers deliver exceptional performance in on-board charger (OBC) transformer cores and DC fast charger magnetic cores applications.
Nanocrystalline Cores for EV Chargers and PFC Chokes
Our EV charger cores are specifically designed for 3.3–22 kW OBC and 50–350 kW DC fast chargers, including PFC inductors, LLC transformers, and output chokes. These high temperature nanocrystalline cores 155°C provide superior performance in demanding automotive applications.
Power Core Features
High Temperature
These nanocrystalline EV charger cores operate up to +155°C with epoxy coating for insulation and durability
Precision Gapping
Controlled air gaps optimized for PFC choke cores for EV chargers
Thermal Management
SS band coating for heat dissipation
EV Optimized
Designed for 800V EV charger transformer core applications and OBC systems
Power Product Range
Power Gapped Toroidal Core 40×25×15mm
PFC choke core for EV OBC applications - HIGHEST PRIORITY
Power L-Toroidal Core 65×38×25mm
Large power core with stainless steel band for thermal management
Power XL-Toroidal Core 80×50×30mm
Extra-large power core for EV 800V applications with thermal management
Technical Specifications
Our power cores deliver exceptional performance with precise magnetic properties optimized for high-power EV charging and power conversion applications.
Magnetic Properties
- • Permeability: 70,000 μi (±25%)
- • Saturation: 1.25T @ 25°C
- • Core Loss: <30W/kg @ 100kHz, 0.2T
- • Curie Temperature: 570°C
- • DC Bias: Excellent linearity
Operating Conditions
- • Temperature: -40°C to +155°C
- • Frequency: 20kHz to 1MHz
- • Humidity: 95% RH non-condensing
- • Vibration: IEC 60068-2-6
- • Thermal Shock: -40°C to +155°C
Construction Features
- • Precision air gaps: ±5% tolerance
- • Epoxy coating for insulation
- • SS band for thermal management
- • Custom winding windows
- • Lead-free RoHS compliant
EV Charging Applications
These nanocrystalline EV charger cores are designed for 3.3–22 kW OBC and 50–350 kW DC fast chargers, including PFC inductors, LLC transformers, and output chokes.
Specifically engineered for the demanding requirements of electric vehicle charging infrastructure and high-power conversion systems with EMI filter cores compatibility.
EV On-Board Chargers (OBC)
Optimized for 3.3kW to 22kW OBC systems with excellent efficiency at high switching frequencies. Supports both 400V and 800V EV architectures with minimal core losses.
- • PFC boost inductors
- • LLC resonant transformers
- • Output filter chokes
DC Fast Charging Stations
High-power cores for 50kW to 350kW DC fast chargers. Exceptional thermal performance and magnetic stability under continuous high-power operation.
- • PFC chokes up to 150kW
- • Isolation transformers
- • Output inductors
Power Factor Correction
Precision-gapped cores for PFC applications with excellent linearity and low losses. Maintains stable inductance under varying load conditions.
- • Boost PFC inductors
- • Bridgeless PFC designs
- • Interleaved PFC systems
Industrial Power Systems
Robust cores for industrial motor drives, UPS systems, and renewable energy inverters. Designed for 24/7 operation in harsh industrial environments.
- • Motor drive inductors
- • UPS transformers
- • Solar inverter chokes
Why Choose Our Power Cores?
Superior Efficiency
Up to 98% efficiency in power conversion applications with minimal core losses
Thermal Stability
Stable magnetic properties from -40°C to +155°C for reliable operation
Precision Engineering
Tight tolerance air gaps and consistent magnetic properties for predictable performance
Designed for OEMs
Manufacturing in India with distribution in USA/Canada, we provide comprehensive support for custom gapping and AL targets. Tested to IEC vibration and thermal shock standards for EV power electronics, ensuring reliable performance in automotive environments.
Design Support
Get help selecting the right EV charger core or AL target; share your power level, frequency, and topology for optimized recommendations.
Frequently Asked Questions
What cores are used in DC fast chargers?
DC fast chargers use nanocrystalline EV charger cores for PFC chokes, isolation transformers, and output inductors. These cores handle 50-350kW power levels with excellent thermal performance up to 155°C.
What temperature rating do EV charger cores need?
EV charger cores need high temperature nanocrystalline cores rated up to 155°C with epoxy coating to handle the thermal stress in automotive and charging applications.
What is the advantage of nanocrystalline cores for PFC chokes?
Nanocrystalline PFC choke cores for EV chargers offer excellent linearity, low core losses, and stable inductance under varying loads, making them ideal for power factor correction in 800V EV charger systems.
EV Power Core Solutions
Get specifications and custom solutions for your EV charging and high-power applications.
Request EV Core Quote