Features

■

Shielded construction

■

Carbonyl powder core

■

High saturation current

■

Inductance range: 0.10 to 33 µH

■

AEC-Q200 qualified

■

RoHS compliant* and halogen free**

Applications

■

Automotive systems:

- Driver assistant

- Information

- Entertainment

- Lighting

■

DC/DC converters

■

Power supplies

SRP7028A Series - Shielded Power Inductors

Test Voltage ....................................1.0 V

Test Frequency ......................... 100 KHz

Operating Temperature

................................-40 °C to +150 °C

(Temperature rise included)

Storage Temperature

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

Rated Current

............ Inductance drops 20 % at Isat

Temperature Rise .....40 °C at rated Irms

Resistance to Soldering Heat

........................ +260 °C, 40 sec. max.

Electrical Specifications @ 25 °C

General Specifications

Core.............................Carbonyl powder

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

Terminal Finish ...................................Sn

Packaging..... 1000 pcs. per 13-inch reel

Materials

Product Dimensions

Recommended Layout

DIMENSIONS:

MM

(INCHES)

How to Order

SRP7028A - 100M

Model

Value Code (see table)

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

**Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine

(Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.

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.

Electrical Schematic

Bourns

Part Number

Inductance

@ 100 KHz

/ 1 V

Q (Min.)

@100

KHz / 1 V

SRF

(MHz)

Typ.

DCR

(mΩ)

Typ.

DCR

(mΩ)

Max.

Irms

(A)

Isat

(A)

Terminal

Type

L

(μH)

Tol.

(%)

SRP7028A-R10M

0.10

± 20

5

300

1.2

1.7

32.5

60

Lead

Frame

SRP7028A-R15Y

0.15

± 30

5

220

1.5

1.9

27

45

SRP7028A-R22Y

0.22

± 30

5

150

2.1

2.8

23

40

SRP7028A-R33M

0.33

± 20

10

140

3.5

3.9

20

32

SRP7028A-R47M

0.47

± 20

10

80

4

4.2

17.5

26

SRP7028A-R56M

0.56

± 20

15

70

4.7

5.0

16.5

25.5

SRP7028A-R68M

0.68

± 20

15

67

4.8

5.5

15.5

25

SRP7028A-R75M

0.75

± 20

15

65

5.5

6.6

14.5

24.5

SRP7028A-R82M

0.82

± 20

15

61

6.7

8.0

13

24

SRP7028A-1R0M

1.0

± 20

20

58

8.3

10.0

11

22

SRP7028A-1R5M

1.5

± 20

20

38

13

15.0

9

18

SRP7028A-1R8M

1.8

± 20

20

36

14

17.0

8.5

16

SRP7028A-2R2M

2.2

± 20

20

32

18

20.0

8

14

SRP7028A-2R5M

2.5

± 20

20

30

20

22.0

7

13

SRP7028A-3R3M

3.3

± 20

20

25

28

30.0

6

12

SRP7028A-4R7M

4.7

± 20

20

21

37

40.0

5.5

10

SRP7028A-5R6M

5.6

± 20

20

19

43

48.0

5

9

SRP7028A-6R8M

6.8

± 20

20

18

54

60.0

4.5

8

SRP7028A-8R2M

8.2

± 20

20

17

64

68.0

4

7.5

SRP7028A-100M

10

± 20

20

14

75

85.0

3.5

6

SRP7028A-150M

15

± 20

20

12

107

123.0

3.0

4

SRP7028A-220M

22

± 20

20

10

165

190.0

2.0

3.5

SRP7028A-330M

33

± 20

20

8

200

240.0

2.0

2.5

Soldering Profile

8.4

(.331)

7.3 ± 0.3

(.287 ± .012)

2.5

(.098)

3.5

(.138)

6.6 ± 0.3

(.260 ± .012)

2.8 ± 0.2

(.110 + .008)

3.0 ± 0.3

(.118 ± .012)

1.8 ± 0.3

(.071 ± .012)

2R2

1150

1R01250

Max. Peak Temperature 260

40 sec. max.

Max. Time Above 217

:

60~150 sec. max.

Peak Temperature

260

max.

25

Time (Seconds)

Reflow Times: 3 Times Max.

Preheating

Soldering

Natural Cooling

217 °C

Peak Temperature (260 °C, 40 Sec. Max.)

200 °C

150°C

60~180

Sec.

480 Sec. Max.

60~150 Sec.

20~40 Sec.

Please consult Bourns® Model SRP-A

Series Visual Inspection Guide for detailed

construction, processing and testing

information.

Lead Frame Terminal