Description
ETD34 Transformer 16+16 Pins Flyback Type for SMPS Power Supply
Our ETD34 transformer, a 16+16‑pins flyback type, is the core ferrite‑core component for modern SMPS switching‑mode power supplies. When two switching‑mode transistors turn on alternately, they generate high‑frequency pulse waves from 10kHz‑200kHz. Our ETD34 transformer finishes voltage conversion and outputs stable alternating‑current power. The output voltage value is determined by the winding‑turn ratio between primary winding and secondary winding.
We manufacture all our high‑frequency transformers complying with standards released by IEC (International Electrotechnical Commission) to guarantee long‑term reliable operation. For power supplies over 200W, larger‑core models such as our ETD39 high‑frequency transformer with a 35‑mm core height will be your better option, while the ETD34‑16+16‑pin transformer serves well for auxiliary power below 300W. If you need higher‑power solutions, our ETD49 and ETD59 series are also available for your PCB design.
Datameters of ETD34 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 | |||||
| ETD29-001 | Horizontal | 37 | 38 | 26 | 7 | 5.0 | 7 | 5.0 | 26 | ∅0.8 | |
| ETD29-002 | Vertival | 37 | 26 | 43 | 6 | 5.0 | 6 | 5.0 | 20.3 | ∅0.6 | |
| ETD29-003 | Vertival | 37 | 25 | 37 | 7 | 5.0 | 7 | 5.0 | 17.5 | ∅0.8 | |
| ETD34-001 | Vertival | 36 | 31 | 40 | 6 | 5.0 | 6 | 5.0 | 25 | ∅1.0 | |
| ETD34-002 | Vertival | 43 | 32 | 41 | 8 | 5.0 | 8 | 5.0 | 25.2 | ∅1.0 | |
| ETD34-003 | Horizontal | 41 | 41 | 31.5 | 7 | 5.0 | 7 | 5.0 | 25.2 | ∅1.0 | |
| ETD34-004 | Horizontal | 41 | 41 | 30 | 15 | 2.54 | 15 | 2.54 | 30 | ∅0.8 | |
| ETD34-005 | Horizontal | 43.5 | 38 | 30 | 16 | 2.5 | 16 | 2.5 | 25.5 | ∅0.8 | |
| ETD34-006 | Horizontal | 41 | 41 | 30 | 16 | 2.54 | 16 | 2.54 | 30 | ∅0.6 | |
| ETD39-001 | Vertival | 45.5 | 30 | 53 | 8 | 5.08 | 8 | 5.08 | 25.4 | ∅1.0 | |
| ETD39-002 | Horizontal | 46.5 | 45 | 36 | 8 | 5.0 | 8 | 5.0 | 30.4 | ∅1.0 | |
| ETD39-003 | Horizontal | 44 | 47 | 38.5 | 7 | 5.0 | 7 | 5.0 | 35.3 | ∅1.0 | |
| ETD44-001 | Vertival | 47 | 34.5 | 52 | 9 | 5.0 | 9 | 5.0 | 27.5 | ∅1.0 | |
| ETD44-002 | Horizontal | 50 | 52.5 | 40.5 | 9 | 5.0 | 9 | 5.0 | 36.8 | ∅1.0 | |
| ETD49-001 | Vertival | 55 | 41.5 | 58.5 | 9 | 5.0 | 9 | 5.0 | 27.5 | ∅1.0 | |
| ETD49-002 | Vertival | 56 | 38.5 | 58.5 | 10 | 5.0 | 10 | 5.0 | 30.5 | ∅1.0 | |
| ETD49-003 | Vertival | 56.5 | 40 | 58.5 | 11 | 5.0 | 11 | 5.0 | 27.5 | ∅1.0 | |
| ETD49-004 | Horizontal | 56.5 | 55 | 51.5 | 10 | 5.0 | 10 | 5.0 | 40.5 | ∅1.0 | |
| ETD49-005 | Horizontal | 56 | 59 | 43 | 10 | 5.0 | 10 | 5.0 | 40.7 | ∅1.0 | 2 slot |
| ETD54-001 | Vertival | 69 | 40 | 65 | 11 | 5.08 | 11 | 5.08 | 33 | ∅0.9 | |
| ETD54-002 | Horizontal | 63 | 63 | 46 | 11 | 6.08 | 11 | 5.08 | 45.9 | ∅1.0 | |
| ETD59-001 | Horizontal | 72.5 | 68 | 46 | 13 | 5.0 | 13 | 5.1 | 50.8 | ∅0.8 | |
ETD34 16+16 PINS Flyback Transformer
- Operating frequency: 10kHz‑200kHz
- Output power: customized according to customer’s PCB design
- Operating temperature: -40°C to +125°C
- Storage temperature: -25°C to +85°C
- Storage humidity: 30‑95% non‑condensing
Our ETD34 16+16 pins flyback transformer can run steadily within 10kHz‑200kHz working frequency range. The wide operating temperature from ‑40°C to +125℃ makes this ferrite‑core transformer suitable for harsh‑environment industrial equipment. We adjust output‑power rating, winding turns and pin‑out layout fully based on clients’ requirements. All components comply with standards from IEC (International Electrotechnical Commission). If you need higher‑power‑grade components, check our ETD39 high‑frequency transformer for your reference.
Application of Our ETD34 Transformer
Our ETD34‑16+16‑pin flyback transformer is widely used in industrial switching power supplies, 24‑V equipment power modules, medical auxiliary power units, LED‑driver power supply, battery chargers and communication‑equipment power‑supply circuits. It perfectly matches PWM‑controller IC and MOSFET chips and maintains stable‑performance for household‑grade and industrial‑grade SMPS projects.
Custom‑Made Service for ETD34 Transformer
Except for standard‑pin‑out ETD34 transformers, we provide full‑custom service. Winding‑wire gauge, winding‑ratio, pin‑sequence, insulation grade and bobbin types can be adjusted to meet your PCB‑design requirement.
Details
Back‑side view of ETD34 flyback transformer with 16+16 pins layout
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