Description
EE55 Transformer – Large Window MnZn Ferrite High Frequency SMPS Transformer
Product Overview
Furthermore, our EE55 Transformer is a medium-to-high power ferrite high frequency transformer with a large winding window area, widely adopted in kilowatt-level switching power supply equipment.
This EE55 high frequency transformer is built with premium low-loss manganese-zinc ferrite core. Its oversized window design brings great convenience for multi-layer thick copper winding, which supports large current output without excessive temperature rise during long-hour full-load operation.
In addition, it balances moderate manufacturing cost and long-term operational reliability, making it a cost-effective core power conversion component for industrial and new energy power equipment. It matches mainstream circuit topologies including half-bridge, full-bridge and LLC resonant converter circuits perfectly.
Specification
| Type | Structure type | Dimension(mm) | Pin Row1(mm) | Pin Row2(mm) | Row Pitch | OD Pin(mm) | Note | ||||
| A | B | C | Pin | Pin Pitch | Pin | Pin Pitch | |||||
| EE19-001 | Vertival | 19.5 | 14 | 16 | 3 | 5.00 | 3 | 5.00 | 11 | ∅0.7 | |
| EE19-002 | Vertival | 22 | 16 | 19 | 5 | 4.00 | 5 | 4.00 | 10 | ∅0.8 | |
| EE19-003 | Vertival | 19.5 | 14 | 16 | 2 | 8.00 | 2 | 8.00 | 9.6 | ∅0.7 | |
| EE19-004 | Vertival | 19.5 | 14 | 17 | 4 | 4.00 | 3 | 4.00 | 11 | ∅0.7 | |
| EE19-005 | Vertival | 19.5 | 15.7 | 19 | 6 | 2.70 | 4 | 3.50 | 12.1 | ∅0.6 | |
| EE19-006 | Horizontal | 19.5 | 16.3 | 12.5 | 4 | 4.78 | 4 | 4.78 | 12.75 | ∅0.7 | |
| EE19-007 | Horizontal | 19.5 | 17.3 | 12.5 | 5 | 3.00 | 5 | 3.00 | 12.5 | ∅0.7 | |
| EE19-008 | Horizontal | 19.5 | 17.4 | 11.1 | 6 | 2.50 | 4 | 2.5/7.5 | 14.2 | SQ0.4*0.6 | 4 slot |
| EE19-009 | Horizontal | 19.5 | 16 | 14.8 | 4 | 4.75 | 4 | 4.75 | 12.5 | ∅0.7 | 2 slot |
| EE20-001 | Vertival | 21 | 16 | 21 | 3 | 5.00 | 3 | 5.00 | 12.5 | ∅0.7 | |
| EE22-001 | Vertival | 23 | 16 | 23 | 5 | 4.00 | 5 | 4.00 | 10 | ∅0.8 | |
| EE22-002 | Horizontal | 23 | 16 | 13.2 | 4 | 4.25/4.8 | 4 | 4.25/4.8 | 13 | ∅0.7 | |
| EE22-003 | Horizontal | 23 | 22.5 | 20.5 | 5 | 4.00 | 4 | 5.00 | 17 | ∅0.6 | |
| EE25-001 | Vertival | 26 | 17.2 | 22 | 4 | 5.00 | 4 | 5.00 | 12 | ∅0.8 | |
| EE25-002 | Vertival | 26 | 20.5 | 22 | 5 | 5.00 | 5 | 5.00 | 15 | ∅0.8 | |
| EE25-003 | Vertival | 26 | 25 | 15.6 | 5 | 5.0/6.0 | 5 | 5.0/6.0 | 22 | SQ0.64*0.64 | |
| EE25-004 | Horizontal | 26 | 20.5 | 17.5 | 4 | 4.00 | 4 | 4.00 | 15 | ∅0.8 | |
| EE25-005 | Horizontal | 26.3 | 27.5 | 25 | 4 | 5.00 | 4 | 5.00 | 20 | ∅0.8 | 2 slot |
| EE28-001 | Vertival | 29 | 22 | 21 | 5 | 5.0 | 5 | 5 | 17.5 | ∅0.8 | |
| EE30-001 | Vertival | 31 | 22 | 27 | 5 | 5.0 | 5 | 5 | 17.5 | ∅0.8 | |
| EE33-001 | Vertival | 34 | 29 | 32 | 6 | 5.0 | 6 | 5 | 22.7 | ∅0.8 | |
| EE40-001 | Vertival | 41 | 28 | 34 | 6 | 5.0 | 6 | 5 | 22.6 | ∅0.8 | |
| EE40-002 | Horizontal | 41 | 32 | 28.5 | 7 | 5.0 | 7 | 5 | 25.8 | ∅0.8 | |
| EE42-001 | Vertival | 43 | 39 | 44 | 6 | 5.0 | 6 | 5 | 32.2 | ∅1.0 | |
| EE42-002 | Horizontal | 43 | 40 | 36.5 | 8 | 5.0 | 8 | 5 | 35 | ∅1.0 | |
| EE42-003 | Horizontal | 43 | 44 | 39 | 8 | 5.0 | 8 | 5 | 35.5 | ∅1.0 | |
| EE55-001 | Horizontal | 56 | 56 | 48 | 7 | 5.0 | 7 | 5 | 40 | ∅1.0 | |
| EE55-002 | Horizontal | 56 | 56 | 54 | 10 | 5.0 | 10 | 5 | 45 | ∅1.0 | |
| EE65-001 | Vertival | 66 | 55 | 65 | 10 | 5.0/8.0 | 6 | 5.0/24.5 | 45.5 | ∅1.3 | |
Performance Of EE55 Transformer
Furthermore, stable standardized parameters guarantee consistent performance for high-power power supply design:
1. Working frequency: 20kHz-500KHz
2. Output power: 80 to 2000 W
3. Working temperature: -40℃ to +125℃
4. Storage temperature: -25℃ to +85℃
5. Storage humidity: 30 to 95%
Core Advantages of EE55 Transformer
- Extra large winding window space, easy to wind thick parallel copper wire for high-current output;
- Low-loss MnZn ferrite core effectively reduces core loss and heat generation under continuous high-frequency operation;
- Balanced core structure realizes uniform magnetic flux distribution, lowering leakage inductance to cut switching loss;
- Compatible with horizontal and vertical DIP pin skeleton layouts to fit different PCB space demands;
- High insulation grade winding design meets industrial, new energy and medical isolation safety standards;
- Standard universal components simplify mass production, controlling overall cost while maintaining stable quality.
Main Application Fields of EE55 Transformer
- DC fast charging station power modules, new energy vehicle on-board charger power supply;
- Industrial high-power switching power supply, welding machine power conversion unit;
- Solar photovoltaic inverter, energy storage converter and high-power UPS equipment;
- Medical high-power isolation power supply, laboratory high-power test power unit;
- Industrial laser equipment, high-power servo drive auxiliary power system.
Customization Service for EE55 Transformer
- Winding customization: Adjustable primary & secondary turns ratio, multi-group parallel secondary windings available;
- Skeleton options: Horizontal or vertical DIP pin layout, customizable pin quantity and pin sequence;
- Material selection: PC40 / PC95 low-loss ferrite core, 155℃ / 180℃ high-temperature enameled wire;
- Certification support: All EE55 transformers comply with RoHS & CE industrial safety standards, test reports can be provided on request;
- Flexible order: Small sample trial orders and mixed batch orders with other EE series transformers are acceptable.
Matching Supporting Electronic Components
- High-current molded power inductors (CD, NR, RH series);
- Power semiconductor devices: MOSFET, IGBT, SiC/GAN power chips, PWM driver IC and control MCU;
- EMI filter components: High-power common mode chokes, high voltage film capacitors, power resistors;
- Small auxiliary transformers: EE19, EE42, ERL35 low-power auxiliary ferrite transformers.
Our EE55 Transformer strictly follows the published MnZn ferrite high-power SMPS component design specifications for industrial energy conversion equipment.
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