7.2

(.283)

1.8

(.071)

1.8

(.071)

3.6

(.142)

REF.

REF.

REF.

REF.

Features

Applications

• Portable communication equipment

• Camcorders

• LCD TVs

• Car radios

SRU1038 Series - Shielded SMD Power Inductors

* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Specifications are subject to change without notice.

The device characteristics and parameters in this data sheet can and do vary in different applications and actual device

performance may vary over time.

Users should verify actual device performance in their specific applications.

Test Voltage .......................................1 V

Reflow Soldering .. 230 °C, 50 sec. max.

Operating Temperature

................................-40 °C to +125 °C

(Temperature rise included)

Storage Temperature

................................-40 °C to +125 °C

Rated Current

................... Ind. drop 35 % typ. at Isat

Temperature Rise

.....................40 °C max. at rated Irms

Resistance to Soldering Heat

............................... 260 °C for 10 sec.

Electrical Specifications

Bourns

Part No.

Inductance

100 KHz

Q

Ref.

Test

Freq.

(MHz)

SRF

Typ.

(MHz)

RDC

(m

Ω)

Irms

Max.

(A)

Isat

Typ.

(A)

**K-

Factor

(µH)

Tol.

%

SRU1038-1R5Y

1.5

± 30

14

7.96

65.0

5.2

7.20

7.00

177

SRU1038-2R2Y

2.2

± 30

12

7.96

55.0

7.7

6.80

6.50

145

SRU1038-2R5Y

2.5

± 30

12

7.96

50.0

12.5

6.10

6.00

136

SRU1038-3R5Y

3.5

± 30

14

7.96

24.0

11.5

5.50

5.50

106

SRU1038-3R8Y

3.8

± 30

14

7.96

35.0

15.0

5.50

5.50

104

SRU1038-5R0Y

5.0

± 30

12

7.96

30.0

14.5

4.60

4.80

94

SRU1038-5R2Y

5.2

± 30

12

7.96

30.0

22.0

4.60

4.80

92

SRU1038-6R2Y

6.2

± 30

12

7.96

25.0

16.5

4.00

4.20

84

SRU1038-6R8Y

6.8

± 30

13

7.96

36.0

35.0

3.90

4.00

80

SRU1038-8R2Y

8.2

± 30

12

7.96

22.0

32.0

3.80

3.90

73

SRU1038-100Y

10.0

± 30

24

7.96

20.0

25.0

3.80

3.60

64

SRU1038-150Y

15.0

± 30

24

2.52

16.0

37.0

2.80

2.70

51

SRU1038-220Y

22.0

± 30

20

2.52

12.0

55.8

2.20

2.30

43

SRU1038-270Y

27.0

± 30

22

2.52

11.0

78.0

1.85

1.90

39

SRU1038-330Y

33.0

± 30

22

2.52

10.0

86.0

1.80

1.80

35

SRU1038-470Y

47.0

± 30

22

2.52

8.0

121.0

1.65

1.60

29

SRU1038-680Y

68.0

± 30

24

2.52

7.0

166.0

1.10

1.30

26

SRU1038-101Y

100.0

± 30

24

0.796

6.0

220.0

1.30

1.10

20

SRU1038-151Y

150.0

± 30

20

0.796

5.0

358.0

0.90

0.80

16

SRU1038-221Y

220.0

± 30

22

0.796

4.0

565.0

0.65

0.65

14

SRU1038-331Y

330.0

± 30

20

0.796

3.0

773.0

0.55

0.52

11

General Specifications

Core....................Ferrite DR and RI core

Wire ............................Enameled copper

Terminal ....................................Ag/Ni/Sn

Packaging.................... 800 pcs. per reel

Materials

Product Dimensions

DIMENSIONS:

MM

(INCHES)

100

7.4

(.291)

TYP.

TYP.

10.0 ± 0.3

(.394 ± .012)

3.4

(.134)

TYP.

3.2

(.126)

TYP.

3.4

(.134)

3.8 ± 0.3

(.150 ± .012)

10.0 ± 0.3

(.394 ± .012)

Recommended Layout

Inductor Connection

Electrical Schematic

LCR METER

**K-Factor: To calculate core flux density, Bp-p (gauss) = K x L(µH) x

Δ I (peak-to-peak ripple current, A),

determine core loss from Core Loss vs. Flux Density plot on page 2.

Asia-Pacific:

Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116

EMEA:

Tel: +36 88 520 390 • Fax: +36 88 520 211

The Americas:

Tel: +1-951 781-5500 • Fax: +1-951 781-5700

www.bourns.com