ETD34 16+16 PINS Flyback Transformer

Description

High frequency transformer is the most important part of switching power supply. There are many topological structures in switching power supplies. For example, a half-bridge power conversion circuit. When working, two switching transistors are turned on in turn to generate a high-frequency pulse wave of 100kHz, which is then transformed through a high-frequency transformer to output alternating current. The ratio of the turns of each winding coil of the high-frequency transformer is determined How much is the output voltage. The most conspicuous of a typical half-bridge transformer circuit are three high-frequency transformers: the main transformer, the drive transformer, and the auxiliary transformer (standby transformer). Each transformer has its own measurement standards in national regulations, such as the main transformer. As long as it is a power supply above 200W, its core diameter (height) must not be less than 35mm. As for the auxiliary transformer, the core diameter of 16mm is enough when the power supply does not exceed 300W.

The Dimension Of ETD34 16+16PINS 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
PQ20-001	Vertival	23	23	18.5	6	3.8/5.0	8	3.8/5.0	20.5	∅0.6
PQ20-002	Vertival	21	21	21	6	3.5/4.3	6	3.5/4.3	19	∅0.7
PQ20-003	Vertival	23	23	22.5	6	3.8/5.0	8	3.8/5.0	20.5	∅0.6
PQ20-004	Vertival	21	21	21	6	3.5/4.3	6	3.5/4.3	19	∅0.7
PQ26-001	Vertival	27	29.5	21	6	3.8/7.7	6	3.8/7.7	25.5	∅0.7
PQ26-002	Vertival	27	37	21	6	4.5	6	4.5	32.5	∅0.8
PQ26-003	Vertival	27	29.5	23	6	3.8/7.5	6	3.8/7.5	25.4	∅0.6
PQ26-004	Vertival	27	29.5	26	6	3.8/7.5	6	3.8/7.5	25.4	∅0.7
PQ32-001	Vertival	33	34	21	6	5.0/7.5	6	5.0/7.5	30	∅0.8
PQ32-002	Vertival	33	34	27	6	5.0/7.5	6	5.0/7.5	30	∅0.8
PQ32-003	Vertival	33	34	32	6	5.0/7.5	6	5.0/7.5	30	∅0.8
PQ35-001	Vertival	35	39	38	6	5.0/10	6	5.0/10	35.5	∅0.9
PQ40-001	Vertival	40	44	44	6	5.0/15	6	5.0/15	38	∅0.9
PQ50-001	Vertival	51	51	55	6	7.4/12.3	6.0	7.4/12.3	45.7	∅1.2

 

Specifications

ETD34 16+16 PINS Flyback Transformer

1. Operating frequency: 10khz-200khz

2. Output power: customized 

3. Operating temperature: -40℃ to +125℃

4. Storage temperature: -25℃ to +85℃

5. Storage humidity: 30 to 95%

The Dimension Of Bobbin: