PFC coil specification

AN4077

30/33

Doc ID 022997 Rev 1

8.4

Winding characteristics

8.5

Mechanical aspect and pin numbering

●

Maximum height from PCB: 21.5 mm

●

Coil former type: vertical, 6+6 pins

●

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.

●

External copper shield: Not insulated, wound around the ferrite core and including the

coil former. It must be well adherent to the ferrite. Height is 8 mm. Connected to pin #3

by a soldered, solid wire.

Figure 43.

Top view

8.6

Unit identification

Manufacturer: TDK

Manufacturer P/N: SRW2620PQ-X22V102

Figure 42.

Winding characteristics

Pins:

Winding

Rms current

Number of turns

Wire type

5 - 9

57.5 - fit

Multi-stranded

#7 x

11 - 3

5.5 - spaced

1.

Primary winding external insulation: 2 layers of polyester tape.

2.

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

1

6

12

7

AM11531v1