4 Typical Applications

TDA0161

6/12

4

Typical Applications

##).The above results are obtained with single wire coil. When using Litz wire instead of single wire, the parallel resistance of

the coil becomes higher and value of R1 may be increased, resulting in better sensitivity

Figure 3.

Application Interface Connection Diagram

Table 3.

Detection Range

L1 (

µH)

C1 (pF)

R1 (k

C2 (pF)

2mm

30 (1)

120

2650

6.8

47

5mm

300 (2)

470

425

27

470

10mm

2160 (3)

4700

50

27

3300

Table 4.

Coil Characteristics

Core

Coil Former

Number of Turns

1

Cofelec 432 FP 9 x 5 SE

1/2 Car 091 - 2

THOMSON Fils et Câbles

Thomrex 14

(14 / 100mm)

40

2

Cofelec 432 FP 14 x 8 SE

1/2 Car 142 - 2

100

3

Cofelec 432 FP 26x 16 SE

1/2 Car 262 - 2

200