ISC-1812

www.vishay.com

Vishay Dale

Revision: 11-Dec-12

1

Document Number: 34061

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

Wirewound, Surface Mount, Molded, Shielded Inductors

Note

to exceed 40 °C at + 85 °C ambient

FEATURES

• Molded construction provides superior strength

and moisture resistance

• Tape and reel packaging for automatic handling,

2000/reel, EIA-481

• Compatible with vapor phase and infrared reflow

soldering

• Shielded construction

minimizes coupling to other

components

• Material categorization: For definitions of compliance

ELECTRICAL SPECIFICATIONS

Inductance Range: 0.10 μH to 1000 μH

Inductance Tolerance: ± 20 % for 0.10 μH to 0.82 μH

± 10 % for 1.0 μH to 1000 μH

standard

± 10 %, ± 5 %, ± 3 % available

Operating Temperature: - 55 °C to + 125 °C

Coilform Material: Non-magnetic for 0.10 μH to 0.82 μH

Powdered iron for 1.0 μH to 22 μH

Ferrite for 27 μH to 1000 μH

TEST EQUIPMENT

• H/P 4342A Q meter with Vishay Dale test fixture or equivalent

• H/P 4191A RF impedance analyzer (for SRF measurements)

• Wheatstone bridge

Note

STANDARD ELECTRICAL SPECIFICATIONS

IND.

(μH)

TOL.

TEST

FREQ.

(MHz)

Q MIN.

SRF

MIN.

(MHz)

DCR

MAX.

(

)

RATED DC

CURRENT

L & Q

0.10

± 20 %

25.2

30

460

0.23

552

0.12

± 20 %

25.2

30

400

0.26

519

0.15

± 20 %

25.2

30

390

0.29

491

0.18

± 20 %

25.2

30

350

0.32

468

0.22

± 20 %

25.2

30

310

0.36

441

0.33

± 20 %

25.2

30

280

0.40

418

0.39

± 20 %

25.2

30

240

0.45

394

0.47

± 20 %

25.2

30

215

0.60

342

0.56

± 20 %

25.2

30

205

0.75

306

0.68

± 20 %

25.2

30

195

0.80

296

0.82

± 20 %

25.2

30

165

0.95

271

0.8

± 20 %

25.2

30

155

1.20

242

1.0

± 10 %

7.96

30

140

0.35

447

1.2

± 10 %

7.96

30

120

0.38

429

1.5

± 10 %

7.96

30

100

0.40

418

1.8

± 10 %

7.96

30

90.0

0.43

403

2.2

± 10 %

7.96

30

80.0

0.46

390

2.7

± 10 %

7.96

30

67.0

0.49

378

3.3

± 10 %

7.96

30

61.0

0.55

357

3.9

± 10 %

7.96

30

56.0

0.59

344

4.7

± 10 %

7.96

30

50.0

0.62

336

5.6

± 10 %

7.96

30

40.0

0.69

333

6.8

± 10 %

7.96

30

32.0

0.75

306

8.2

± 10 %

7.96

30

30.0

0.82

292

10.0

± 10 %

2.52

50

25.0

0.90

279

12.0

± 10 %

2.52

50

22.0

1.00

265

15.0

± 10 %

2.52

50

18.0

1.10

252

18.0

± 10 %

2.52

50

15.0

1.24

238

22.0

± 10 %

2.52

50

14.0

1.36

227

27.0

± 10 %

2.52

50

13.0

1.56

212

33.0

± 10 %

2.52

50

12.0

1.72

202

39.0

± 10 %

2.52

50

11.0

1.89

192

47.0

± 10 %

2.52

50

9.0

2.10

183

56.0

± 10 %

2.52

50

8.0

2.34

173

68.0

± 10 %

2.52

50

7.6

2.60

164

82.0

± 10 %

2.52

50

7.2

2.86

156

100.0

± 10 %

0.796

40

7.0

3.25

147

120.0

± 10 %

0.796

40

6.0

3.64

139

150.0

± 10 %

0.796

40

5.0

4.16

130

180.0

± 10 %

0.796

40

4.5

5.72

111

220.0

± 10 %

0.796

40

4.2

6.30

105

270.0

± 10 %

0.796

40

4.0

6.90

101

330.0

± 10 %

0.796

40

3.7

7.54

96

390.0

± 10 %

0.796

40

3.5

8.20

92

470.0

± 10 %

0.796

40

3.3

9.20

87

560.0

± 10 %

0.796

30

2.8

10.50

82

680.0

± 10 %

0.796

40

2.6

12.00

76

820.0

± 10 %

0.796

30

2.2

13.50

72

1000.0 ± 10 %

0.252

30

2.0

16.00

66

DIMENSIONS in inches [millimeters]

PART MARKING

- Vishay Dale

- Inductance value

- Date code

Guidelines for

Parallel Component

Printed Circuit

Mounting Pads on

ISC-1812 Chip

Inductors

0.037 ± 0.008

[0.940 ± 0.203]

0.126 ± 0.008

[3.200 ± 0.203]

0.050

+ 0.004

- 0.008

Typ.

[1.270

]

+ 0.102

- 0.203

0.024

(1)

[0.6]

0.059

[1.5]

0.059

[1.5]

0.118 [3.0]

0.158

[4.0]

0.158

[4.0]

0.181

[4.6]

0.124 [3.15]

Ref.

0.126 ± 0.008

[3.200 ± 0.203]

0.177 ± 0.008

[4.500 ± 0.203]

0.030 ± 0.004

[0.762 ± 0.102]

Typ.

0.006 [0.152]

Ref. Typ.