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SMT POWER INDUCTORS

Shielded Toroid Series - Ros1/Ros2 Series

TWO PACKAGE SIZES:

Height:

3.2mm and 5.3mm Max

Footprint:

8.1mm x 5.3mm and 14.0mm x 10.2mm

Current Rating:

up to 5A

Inductance Range:

.51µH to 357µH

Electrical Specifications @ 25°C — Operating Temperature -40°C to +130°C

Pulse

Part

Number

P0430

P0431

P0432

P0433

P0434

P0435

P0436

P0437

P0438

P0439

P0440

P0441

P0442

P0443

P0444

P0445

P0446

Inductance

@ Irated

(µH Min)

0.51

0.76

0.85

1.44

1.87

2.72

4.33

5.35

8.84

10.79

17.59

25.50

35.80

52.70

127

0.51

0.67

1.09

1.53

1.78

3.74

4.76

5.61

9.09

11.47

22.95

39.10

40.80

69.70

76.50

137

182

272

357

Irated

(A)

DCR (mΩ)

TYP

100

140

155

250

280

440

650

1050

1065

1600

8.1

8.7

11.4

13.0

15.0

23.0

26.1

33.0

70.4

60.0

90.4

123.5

240.0

245.2

305.2

480.9

681.7

1030.4

1200.0

MAX

16.1

20.7

32.2

39.1

115

161

178

288

322

506

747

1208

1225

1840

9.3

13.1

17.3

26.5

104

142

276

282

351

553

784

1185

1380

Inductance

@ 0A

(µH +/- 15%)

1.1

1.9

2.6

3.9

6.0

7.1

12.2

14.7

23.8

33.8

110

122

179

.65

.86

1.5

2.3

5.1

6.3

7.5

13.2

15.5

57.2

62.5

100

103

180

254

422.5

500

Reference

(V*µsec)

1.2

1.8

2.3

3.1

3.3

4.4

5.0

6.5

8.4

9.8

3.1

1.0

7.5

10.5

105

130

Trise

Factor

(K0)

1.45

.508

Coreloss

Factor

(K1)

1.27E-11

8.87E-11

Factor

(K2)

476.2

370.4

277.8

238.1

196.1

158.7

144.9

111.1

101.0

79.4

66.7

55.6

45.7

37.0

35.1

29.0

181.8

151.5

113.6

90.9

60.6

56.8

50.5

39.5

35.0

24.6

18.9

18.2

14.0

14.2

10.0

8.7

7.0

6.1

Ros 1 Series

2.00

1.90

1.50

1.20

1.00

0.70

0.60

0.50

0.45

0.34

0.29

0.24

0.20

0.17

0.16

0.14

5.00

3.00

2.50

2.00

1.80

1.50

1.30

1.00

0.90

0.80

0.60

0.50

0.40

0.35

0.30

0.25

Ros 2 Series

P0450

P0451

P0452

P0453

P0454

P0455

P0456

P0457

P0458

P0459

P0460

P0461

P0462

P0463

P0464

P0465

P0466

P0467

P0468

USA 858 674 8100

•

UK 44 1483 401 700

•

France 33 3 84 35 04 04

•

Singapore 65 6287 8998

•

Shanghai

86 21 54643211 / 2

•

China 86 769 85538070

•

Taiwan 886 3 4641811

www.pulseeng.com

P617.A (3/06)

SMT POWER INDUCTORS

Shielded Toroid Series - Ros1/Ros2 Series

Notes:

1. Temperature rise is 55°C in typical buck or boost circuits with the rated I

current and reference ET applied to the inductor.

2. Total loss in the inductor is 80 mW (ROS 1) and 280 mW (ROS 2) for 55°C

temperature rise above ambient.

3. To estimate temperature rise in a given application, you must determine the

total losses (copper losses + core losses) and apply the following formula:

Temp Rise (C) = (Total Losses (mW))

.833

* KO (from table)

4. To determine copper losses, calculate:

Copper Loss (mW) = I

DC2

x DCR

5. For core loss in mWatts, using frequency f (in Hz) and operating

flux density B (in Gauss), calculate:

Core Loss (mW) = k2 * f

1.26

* B

2.11

6. For flux density (B), calculate ET (V-µsec) for the application,

and multiply by ET

factor from the table.

Mechanical

MAX

Schematic

MAX

Suggested Pad Layout

PKG

ROS 1

ROS 2

.335

8,51

.545

13,84

.225

5,72

.390

9,91

.125

3,18

.215

5,46

.250

6,35

.440

11,18

.100

2,54

.120

3,05

.050

1,27

.065

1,65

.250

6,35

.440

11,18

ROS 1

ROS 2

Weight

....................0.29 grams .............1.1 grams

Tape & Reel

...............2000/reel ................600/reel

Dimensions:

Inches

Unless otherwise specified, all tolerances are ± .010

0,25

ROS 1

.135

3,43

.012

0,30

.157

4,00 .079

2,00

.069

1,75

.295

7,49 .630

± .012

16,00

± 0,30

.220

5,59

.016

0,41

ROS 2

.157

4,00

.079

2,00

.069

1,75

.453

11,51

.050

1,27

.230

5,84

.315

8,00

.945

± .012

24,00

± 0,30

TAPE & REEL LAYOUT

USER DIRECTION OF FEED

TAPE & REEL LAYOUT

.410

10,41

.630

16,00

USER DIRECTION OF FEED

For More Information:

Pulse Worldwide

Headquarters

12220 World Trade Drive

San Diego, CA 92128

U.S.A.

www.pulseeng.com

TEL: 858 674 8100

FAX: 858 674 8262

Pulse

Northern Europe

3 Huxley Road

Surrey Research Park

Guildford, Surrey GU2 5RE

United Kingdom

TEL: 44 1483 401700

FAX: 44 1483 401701

Pulse

Southern Europe

Zone Industrielle

F-39270

Orgelet

France

TEL: 33 3 84 35 04 04

FAX: 33 3 84 25 46 41

Pulse

Pulse North China

China Headquarters

Room 1503

No. 1

Industrial District

Changan, Dongguan

China

TEL: 86 769 85538070

FAX: 86 769 85538870

XinYin Building

No. 888 YiShan Road

Shanghai 200233

China

TEL: 86 21 54643211/2

FAX: 86 21 54643210

Pulse South Asia

150 Kampong Ampat

#07-01/02

KA Centre

Singapore 368324

TEL: 65 6287 8998

FAX: 65 6280 0080

Pulse North Asia

No. 26

Kao Ching Road

Yang Mei Chen

Taoyuan Hsien

Taiwan, R. O. C.

TEL: 886 3 4641811

FAX: 886 3 4641911

Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product

names mentioned herein may be trademarks or registered trademarks of their respective owners.

www.pulseeng.com

P617.A (3/06)