Features

Applications

SRN8040 Series - Semi-shielded Power Inductors

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

**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.

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.

Operating Temperature

................................. -40 °C to +125 °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/Ag/Cu

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