Features

Applications

SRN8040 Series - Semi-shielded Power Inductors

* RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.

** Bourns follows the prevailing definition of “halogen free” in the industry. 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.

Customers should verify actual device performance in their specific applications.

Operating Temperature

................................. -40 °C to +105 °C

(Temperature rise included)

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

Resistance to Solder Heat

...............................+250 °C for 10 sec.

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

Rated Current

........... Inductance drops 30 % at Isat

Electrical Specifications @ 25 °C

General Specifications

Core..............................................Ferrite

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

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

Coating ................ Magnetic epoxy resin

Packaging.....1200 pcs. per 13-inch reel

Materials

Product Dimensions

Recommended Layout

Electrical Schematic

DIMENSIONS:

MM

(INCHES)

How to Order

SRN8040 - 100M

Model

Value Code (see table)

Soldering Profile

100

0

50

50

150

250

200

Rising Area

Temperature

±3.0 °C/sec. max.

Forced Cooling Area

6.0

/ sec max.

°C

PeakTemperature:

Time (Seconds)

100

150

200

40~90 sec.max.

250 °C +5/-10 °C, 5 sec. max.

150 ~ 200 °C / 60 - 180 sec.

Preheat Area

+1.5 ~ 3.0 °C

Reflow Area

250

217 °C

Peak Temperature: 255 ° max.

Maximum Time Above 217 °C: 90 seconds

8.0 ± 0.3

(.315 ± .012)

8.0 ± 0.3

(.315 ± .012)

MAX.

REF.

4.0

(.157)

3.2

(.126)

8.0

(.315)

REF.

REF.

3.5

(.138)

REF.

2.2

(.087)

REF.

2.2

(.087)

Bourns Part No.

Inductance

@ 100 KHz/1 V

DCR

(

Ω)

Max.

Irms

(A)

Isat

(A)

L (

μH)

Tol. %

SRN8040-R50Y

0.5

30

0.007

10

12

SRN8040-1R0Y

1.0

30

0.01

7.8

11

SRN8040-1R5Y

1.5

30

0.011

7

8.2

SRN8040-2R2Y

2.2

30

0.013

6.3

7.4

SRN8040-3R3Y

3.3

30

0.021

5.6

5.5

SRN8040-3R6Y

3.6

30

0.022

4.9

5.3

SRN8040-4R7Y

4.7

30

0.024

4.1

4.7

SRN8040-6R8Y

6.8

30

0.033

3.9

4.2

SRN8040-8R2Y

8.2

30

0.045

3.7

4

SRN8040-100M

10

20

0.05

3.1

3.4

SRN8040-150M

15

20

0.07

2.4

2.7

SRN8040-220M

22

20

0.1

2.2

2.2

SRN8040-330M

33

20

0.145

1.7

1.9

SRN8040-470M

47

20

0.19

1.4

1.5

SRN8040-680M

68

20

0.275

1.1

1.2

SRN8040-101M

100

20

0.4

1

1

2R2