Description
Our EE42 Transformer High Power SMPS Transformer is characterized by small size, low price and high reliability. EE transformer is a basic ferrite core with stable performance, low cost and large current. Widely used in power conversion and line filtering. The size is from small to large to meet the requirements of various application circuits. If temperature resistant 155 ℃ or 180 ℃ polyurethane enamelled wire is used, it can meet different temperature conditions and is applicable to various switching power supplies, inverters, UPS, etc.
EE42 high frequency transformer performance
1. Work frequency: 20KHz-500KHz
2. Output power: 80 to 1500 w
3. Work temperature: -40 ℃ to +125 ℃
4. Storage temperature: -25 ℃ to +85 ℃
5. Storage humidity: 30 to 95%
Specifications Of EE42 Transformer
| 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 | |

Customization Service Of EE42 Transformer
- Power & voltage custom: 80W~1500W, single/dual/triple multi-output voltage (12V/24V/36V/48V etc.)
- Bobbin structure: Horizontal & vertical bobbin optional, large window for thick winding wire
- High temp wire: 155℃ / 180℃ heat-resistant enameled wire for heavy load continuous operation
- PCB pin custom: Adjustable pin quantity, pin spacing and pin arrangement to match your industrial mainboard
- EMI reduction: Shield winding, vacuum impregnation & full epoxy potting to cut electromagnetic interference
- Safety certification: RoHS & CE standard, support customized UL certified production for export industrial equipment
2. Industrial Application Scenarios
- Industrial frequency converter & VFD drive power supply
- High-power battery charging module
- Off-grid solar inverter & small photovoltaic power supply
- Industrial UPS emergency power source
- High-current LED industrial driver power
- Medical isolation power supply, communication base station power module
3. EE42 Transformer FAQ
Q1: What is the power range of EE42 high frequency transformer?
Q2: Can you customize multi-output high voltage EE42 transformer?
Q3: What frequency band does EE42 transformer adapt to?
Q4: Is EE42 transformer suitable for continuous heavy load operation?
Q5: Can I get EE42 prototype samples for circuit testing?
Our EE42 Transformer follows strict MnZn ferrite core high frequency transformer industry standard released by IEEE to guarantee low core loss performance.
Details


Vertical view of EE42 high frequency ferrite transformer, 80W-1500W heavy power flyback transformer for industrial power supply












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