Features

Applications

SRN4018 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.

Customers should verify actual device performance in their specific applications.

Operating Temperature

................................. -25 °C to +120 °C

(Temperature rise included)

Storage Temperature .. -25 °C to +120 °C

Resistance to Solder Heat

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

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

Rated Current

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

Electrical Specifications @ 25 °C

Bourns Part No.

Inductance

@ 100 KHz/1 V

DCR

(

Ω)

Max.

Irms

(A)

Isat

(A)

L (

μH)

Tol. %

SRN4018-R82Y

0.82

30

0.019

4.0

4.7

SRN4018-1R0Y

1.0

30

0.023

3.7

4.2

SRN4018-1R2Y

1.2

30

0.025

3.5

4.0

SRN4018-1R5Y

1.5

30

0.032

3.1

3.5

SRN4018-2R2M

2.2

20

0.044

2.9

3.0

SRN4018-2R7M

2.7

20

0.052

2.3

2.4

SRN4018-3R3M

3.3

20

0.066

2.2

2.3

SRN4018-4R7M

4.7

20

0.084

1.9

2.0

SRN4018-6R8M

6.8

20

0.118

1.5

1.6

SRN4018-100M

10

20

0.180

1.3

1.4

SRN4018-150M

15

20

0.264

1.0

1.1

SRN4018-220M

22

20

0.348

0.9

0.95

SRN4018-330M

33

20

0.552

0.7

0.75

SRN4018-470M

47

20

0.780

0.6

0.62

SRN4018-680M

68

20

1.128

0.5

0.50

SRN4018-101M

100

20

1.596

0.42

0.45

SRN4018-151M

150

20

2.400

0.32

0.35

SRN4018-221M

220

20

3.552

0.28

0.30

General Specifications

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

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

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

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

Packaging..... 3000 pcs. per 13-inch reel

Materials

Product Dimensions

Recommended Layout

Electrical Schematic

DIMENSIONS:

MM

(INCHES)

How to Order

SRN4018 - 100M

Model

Value Code (see table)

Soldering Profile

150

260

200

20 sec.max.

Preheat 100 sec. max.

10 sec. max.

Natural Cooling

60 sec. min.

4.0 ± 0.2

(.157 ± .008)

4.0 ± 0.2

(.157 ± .008)

MAX.

1.8

(.071)

3.6

(.142)

4.55

(.179)

1.5

(.059)

1.5

(.059)