SRP8540A Series - Shielded Power Inductors

Soldering Profile

25

250

Time (Seconds)

REFLOW TIMES: 3 TIMES MAX.

PREHEAT AREA

MAX. RAMP UP RATE = 3 °C/SEC.

MAX. RAMP DOWN RATE = 6 °C/SEC.

Time 25 °C to Peak

8 Minutes Max.

TC -5 °C

200 °C

60~150

Sec.

217

150°C

60~120

Sec.

20~30 Sec.

Profile Feature

Pb Free Assembly

Preheat

- Temperature Min. (Tsmin)

- Temperature Max. (Tsmax)

- Time(ts) from Tsmin to Tsmax

150 °C

200 °C

60-120 seconds

Ramp-up Rate (TL to Tp)

3 °C/second max.

Liquidous temperature (TL)

Time (tL) maintained above TL

217 °C

60-150 seconds

Peak package body temperature (Tp)

250 °C

Time within 5 °C of Actual Peak Temperature

(tp)

< 30 seconds

Ramp-Down Rate (Tp to TL)

6 °C/second max.

Time 25 °C to Peak Temperature

8 minutes max.

L vs. I Charts

SRP8540A-R22M

SRP8540A-R56M

SRP8540A-1R0M

SRP8540A-3R3M

SRP8540A-6R8M

SRP8540A-220M

0.30

0.24

0.18

0.12

0.06

0

0.80

0.64

0.48

0.32

0.16

0

100

80

60

40

20

0

1.35

1.08

0.81

0.54

0.27

0

4.50

3.60

2.70

1.80

0.90

0

9.50

7.60

5.70

3.80

1.90

0

32.5

26.0

19.5

13.0

6.5

0

0

13

26

39

65

52

DC Current (A)

0

8

16

24

32

40

DC Current (A)

0

6.5

13.0

19.5

32.5

26.0

DC Current (A)

0

5.5

11.0

16.5

27.5

22.0

DC Current (A)

0

3.5

7.0

10.5

14.0

17.5

DC Current (A)

0

1.8

3.6

5.4

7.2

9.0

DC Current (A)

0

8

16

24

40

32

DC Current (A)

0

6

12

18

24

30

DC Current (A)

0

4.5

9.0

13.5

18.0

22.5

DC Current (A)

0

3.5

7.0

10.5

14.0

17.5

DC Current (A)

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

SRP8540A-R33M

SRP8540A-R68M

SRP8540A-1R5M

SRP8540A-4R7M

SRP8540A-8R2M

0.50

0.40

0.30

0.20

0.10

0

100

80

60

40

20

0

0.90

0.72

0.54

0.36

0.18

0

2.00

1.60

1.20

0.80

0.40

0

6.50

5.20

3.90

2.60

1.30

0

11.50

9.20

6.90

4.60

2.30

0

0

12

24

36

48

60

DC Current (A)

SRP8540A-R47M

SRP8540A-R82M

SRP8540A-2R2M

SRP8540A-5R6M

SRP8540A-100M

0.65

0.52

0.39

0.26

0.13

0

100

80

60

40

20

0

1.20

0.96

0.72

0.48

0.24

0

3.00

2.40

1.80

1.20

0.60

0

7.50

6.00

4.50

3.00

1.50

0

14.50

11.60

8.70

5.80

2.90

0

0

9

18

27

45

36

DC Current (A)

0

7

14

21

35

28

DC Current (A)

0

5.5

11.0

16.5

27.5

22.0

DC Current (A)

0

4

8

12

16

20

DC Current (A)

0

2

4

6

8

10

DC Current (A)

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

Specifications are subject to change without notice.

Users should verify actual device performance in their specific applications.

The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.