SRP0312 Series - Shielded Power Inductors

3R3

Features

■

Shielded construction

■

Metal alloy powder core

■

High saturation current

■

Low buzz noise

■

Flat wire

■

RoHS compliant* and halogen free**

Electrical Specifications @ 25 °C

Bourns

Part Number

Inductance

@ 100 kHz / 1 V

Q

Typ.

Q

Test Freq,

(MHz)

SRF

(MHz)

Typ.

DCR

(mΩ)

Typ.

DCR

(mΩ)

Max.

Irms

(A)

Typ.

Isat

(A)

Typ.

L (μH)

Tol. (%)

SRP0312-R47K

0.47

10

18

25.2

91

15.3

17.8

6.6

8.0

SRP0312-R68K

0.68

10

14

25.2

77

21.2

24.8

5.6

6.0

SRP0312-1R0K

1.00

10

23

7.96

59

29.0

34.0

4.7

5.0

SRP0312-1R5K

1.50

10

28

7.96

45

49.0

58.0

3.6

4.3

SRP0312-2R2K

2.20

10

28

7.96

38

63.5

74.0

3.1

3.7

SRP0312-3R3K

3.30

10

22

7.96

36

110.0

129.0

2.4

3.0

SRP0312-4R7K

4.70

10

22

7.96

29

175.0

210.0

1.9

2.5

Product Dimensions

3.40 ± 0.2

(.134 ± .008)

0.95 ± 0.1

(.037 ± .004)

3.40

(.134)

MAX.

1.20

(.047)

MAX.

1.60

(.063)

REF.

3.10 ± 0.2

(.122 ± .008)

General Specifications

Operating Temperature

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

(Temperature rise included)

Storage Temperature (Component)

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

Rated Current

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

Rated Voltage ..................................50 V

Moisture Sensitivity Level ..................... 1

ESD Classification (HBM)................. N/A

Note 1: Circuit design, component, PCB trace size

and thickness, airflow and other cooling provisions all

affect the part temperature. Part temperature should be

verified in the end application.

Materials

Core.......................... Metal alloy powder

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

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

Packaging..... 4000 pcs. per 13-inch reel

Please consult Bourns® Model SRP-A

Series Visual Inspection Guide for detailed

construction, processing and testing

information.

Recommended Layout

1.80

(.071)

REF.

REF.

3.70

(.146)

REF.

1.50

(.059)

Electrical Schematic

How to Order

SRP0312 - 4R7K

Model

Value Code (see table)

* RoHS Directive 2015/863, Mar 31, 2015 and Annex.

** 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. 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

DIMENSIONS:

MM

(INCHES)