SRP0312F Series - Shielded Power Inductors

Features

n

Shielded construction

n

Low profile

n

Metal alloy powder core

n

High saturation current

n

Low DCR

n

Low buzz noise

n

RoHS compliant* and halogen free**

Applications

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DC-DC converters

n

Power supplies in consumer, industrial

and telecom electronics

Additional Information

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Electrical Specifications

Bourns Part No.

Inductance

@ 100 kHz / 1.0 V

Q @

100 kHz

Min.

SRF

(MHz)

Typ.

DCR

(mW)

Irms

(A)

Typ.

Isat

(A)

Typ.

L (mH)

Tol. %

Typ.

Max.

SRP0312F-R30M

0.30

±20

5

140

11.0

12.7

8.6

9.2

SRP0312F-R47M

0.47

108

15.3

17.6

7.3

8.0

SRP0312F-R68M

0.68

80

21.2

24.4

5.6

6.3

SRP0312F-1R0M

1.0

60

29.0

33.4

4.7

5.3

SRP0312F-1R5M

1.5

53

49.0

58.0

3.8

4.3

SRP0312F-2R2M

2.2

39

63.5

74.0

3.3

3.7

SRP0312F-3R3M

3.3

30

95.0

114.0

2.8

3.0

SRP0312F-4R7M

4.7

22

162.0 194.0

2.2

2.5

General Specifications

Operating Temperature

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

(Temperature rise included)

Storage Temperature (Component)

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

Temperature Rise

..........40 °C typ. at rated Irms1 (25 °C)

Rated Current

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

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

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

1Circuit 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 Material.............Metal alloy powder

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

Terminal.................................... Cu/Ni/Sn

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

Electrical Schematic

How to Order

SRP0312F - R47 M

Model

Inductance Value Code

R30 = 0.30 µH

R47 = 0.47 µH

R68 = 0.68 µH

1R0 = 1.0 µH

1R5 = 1.5 µH

2R2 = 2.2 µH

3R3 = 3.3 µH

4R7 = 4.7 µH

Tolerance Code

M = ±20 %

Product Dimensions

3.05 ± 0.2

(.120 ± .008)

3.1 ± 0.2

(.122 ± .008)

3.3 ± 0.2

(.130 ± .008)

TOP VIEW

SIDE VIEW

BOTTOM VIEW

1.0 ± 0.2

(.039 ± .008)

1.6 ± 0.2

(.063 ± .008)

0.8 ± 0.2

(.031 ± .008)

DIMENSIONS:

MM

(INCHES)

Recommended Layout

1.5

(.059)

1.8

(.071)

3.7

(.146)

DIMENSIONS:

MM

(INCHES)

* 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 last page of this document, and at

www.bourns.com/docs/legal/disclaimer.pdf.

WARNING

Cancer and Reproductive Harm

www.P65Warnings.ca.gov