6.0

(.236)

TYP.

TYP.

8.0 ± 0.3

(.315 ± .012)

2.5

(.098)

TYP.

2.8

(.110)

TYP.

2.5

(.098)

4.3 ± 0.3

(.169 ± .012)

8.0 ± 0.3

(.315 ± .012)

5.8

(.228)

2.0

(.079)

2.0

(.079)

3.2

(.126)

REF.

REF.

REF.

REF.

Features

Applications

• Portable communication equipment

• Camcorders

• LCD TVs

• Car radios

SRU8043 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

Resistance to Soldering Heat

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

Electrical Specifications

Bourns

Part No.

Inductance

100 KHz

Q

Ref.

Test

Freq.

(MHz)

SRF

Min.

(MHz)

RDC

(m

Ω)

Irms

Max.

(A)

Isat

Typ.

(A)

**K-

Factor

(µH)

Tol.

%

SRU8043-2R2Y

2.2

± 30

15

7.96

65.0

11.2

5.40

5.20

250

SRU8043-3R9Y

3.9

± 30

15

7.96

42.0

14.6

4.80

4.00

191

SRU8043-4R7Y

4.7

± 30

13

7.96

36.0

17.0

4.60

3.60

171

SRU8043-6R8Y

6.8

± 30

12

7.96

30.0

22.4

3.80

3.10

141

SRU8043-100Y

10

± 30

27

2.52

20.0

30.0

3.50

2.70

120

SRU8043-120Y

12

± 30

15

2.52

15.0

39.0

2.80

2.20

110

SRU8043-150Y

15

± 30

26

2.52

15.0

46.0

2.70

2.00

98

SRU8043-180Y

18

± 30

15

2.52

15.0

62.0

2.30

1.70

87

SRU8043-220Y

22

± 30

24

2.52

12.0

72.5

2.20

1.70

79

SRU8043-270Y

27

±30

17

2.52

12.0

84.0

1.80

1.55

73

SRU8043-330Y

33

± 30

21

2.52

11.0

100.0

1.70

1.40

66

SRU8043-470Y

47

±30

21

2.52

9.0

120.0

1.50

1.20

55

SRU8043-680Y

68

±30

20

2.52

7.0

192.0

1.20

1.00

44

SRU8043-101Y

100

±30

50

0.796

6.0

287.0

1.00

0.80

38

General Specifications

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

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

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

Rated Current

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

Temperature Rise

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

Packaging.................. 1000 pcs. per reel

Materials

Product Dimensions

Recommended Layout

DIMENSIONS:

MM

(INCHES)

Electrical Schematic

Inductor Connection

101

LCR METER

Flux Density Bp-p (gauss)

100

1000

10000

10

10

100

1 MHz

800 KHz

500 KHz

400 KHz

300 KHz

200 KHz

100 KHz

1000

1

0.1

0.01

0.001

0.0001

**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.

Core Loss vs. Flux Density