1997 Nov 21

3

Philips Components

Product specification

EFD cores and accessories

EFD25

COIL FORMERS

General data

Winding data for EFD25 coil former with 10-pins

PARAMETER

SPECIFICATION

Coil former material

phenolformaldehyde (PF), glass-reinforced, flame retardant in accordance with

“UL 94V-0”; UL file number E167521(M)

Pin material

copper-tin alloy (CuSn), tin-lead alloy (SnPb) plated

Maximum operating temperature

180

°C, “IEC 85” class H

Resistance to soldering heat

“IEC 68-2-20”, Part 2, Test Tb, method 1B, 350

°C, 3.5 s

Solderability

“IEC 68-2-20”, Part 2, Test Ta, method 1

NUMBER OF

SECTIONS

WINDING

AREA

MINIMUM

WINDING

WIDTH

(mm)

AVERAGE

LENGTH OF

TURN

(mm)

TYPE NUMBER

1

40.2

16.4

46.4

CSH-EFD25-1S-10P

handbook, full pagewidth

MGC343

5

0.05

1.3

0.15

0

O

13.1

0

0.1

12

0

0.2

18

0

0.2

18

(16.4 min)

0

0.2

0.8

10

3.6

20

25.2 max

22.5

26.2 max

12.5

max

11.7

0.1

0

5.5

0.1

0

6.9

0

0.1

22.5

Fig.2 EFD25 coil former; 10-pins.

Dimensions in mm.