PFC coil specifications

AN3065

30/33

Doc ID 16279 Rev 2

7.4

Winding characteristics

7.5

Mechanical aspect and pin numbering

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Maximum height from PCB: 21.5 mm

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Coil former type: vertical, 6+6 pins

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TDK P/N: BPQ26/20-1112CP

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Pins #1, 2, 4, 6, 7, 10, 12 are removed - pin 8 is for polarity key

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External copper shield: not insulated, wound around the ferrite core, including the coil

former. It must be well adhered to the ferrite. Height is 8 mm. Connected to pin #3 by a

soldered, solid wire.

Figure 40.

Top view

7.6

Unit identification

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Manufacturer: TDK

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Manufacturer P/N: SRW2620PQ-X22V102

Table 2.

Winding characteristics

Pins

Winding

RMS current

Number of turns

Wire type

5 - 9

1.

Primary winding external insulation: 2 layers of polyester tape

57.5 - fit

Multi stranded

#7 x

φ 0.20 mm

11 - 3

2.

Aux winding is wound on top of primary winding. External insulation with 2 layers of polyester tape

5.5 spaced

5.5 - spaced

φ 0.28 mm