SDH3812-4R7-R datasheet, PDF - EEWORLD Datasheet

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SDH3812-4R7-R: DescriptionFixed Inductors 4.7uH 1.25A 0.22ohms; CategoryPassive components; File Size226KB，3 Pages; ManufacturerEaton; Environmental Compliance

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SDH3812-4R7-R Overview

Fixed Inductors 4.7uH 1.25A 0.22ohms

SDH3812-4R7-R Parametric

Parameter Name	Attribute value
Product Attribute	Attribute Value
Manufacturer	Eaton
Product Category	Fixed Inductors
RoHS	Details
Termination Style	SMD/SMT
Inductance	4.7 uH
Tolerance	20 %
Maximum DC Current	1.25 A
Maximum DC Resistance	264 mOhms
Termination	-
Length	3.8 mm
Width	3.8 mm
Height	1.2 mm
Application	Power
Packaging	Reel
Product	Fixed Inductors
Factory Pack Quantity	4150
Unit Weight	0.016000 oz

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SDH3812 Series

Low Profile, High Power, Shielded Inductors

Description

RoHS

2002/95/EC

• 125°C maximum total temperature operation

• 3.8mm x 3.8mm x 1.2mm shielded drum core

• High power density, compact footprint

• Inductance range from 0.47uH to 220uH

• Current range from 4.2 Amps to 0.16 Amps

• Ferrite shielded, low EMI

• Ferrite core material

Applications

• Buck or Boost inductor

• Noise filtering output filter chokes

• LED photo flash

• Handheld devices

• Notebook and battery power

• Cellular phones / PDA’s / GPS systems

• Digital cameras / MP3 players / IP phones

Environmental Data

• Storage temperature range: -40°C to +125°C

• Operating temperature range: -40°C to +125°C

(range is application specific)

• Solder reflow temperature: +260°C max. for 10 seconds

maximum

Part Number

Rated

Inductance

(µH)

0.47

1.0

1.2

1.5

2.2

3.3

4.7

6.8

8.2

10.0

15.0

22.0

33.0

47.0

68.0

82.0

100.0

150.0

220.0

OCL (1)

µH ± 20%

0.43

0.89

1.17

1.49

2.23

3.17

4.96

6.70

8.01

9.67

14.45

22.00

32.90

46.20

67.40

81.80

97.50

149.00

218.50

Part

Marking

Designator

Packaging

• Supplied in tape and reel packaging, 4150 per reel

Irms (2)

Amperes

2.69

2.07

1.77

1.67

1.37

1.14

0.94

0.85

0.73

0.69

0.56

0.50

0.41

0.34

0.31

0.26

0.25

0.20

0.16

Isat (3)

Amperes

4.20

3.00

2.60

2.30

1.90

1.60

1.25

1.05

0.96

0.88

0.72

0.61

0.49

0.41

0.34

0.31

0.28

0.22

0.19

SDH3812-R47-R

SDH3812-1R0-R

SDH3812-1R2-R

SDH3812-1R5-R

SDH3812-2R2-R

SDH3812-3R3-R

SDH3812-4R7-R

SDH3812-6R8-R

SDH3812-8R2-R

SDH3812-100-R

SDH3812-150-R

SDH3812-220-R

SDH3812-330-R

SDH3812-470-R

SDH3812-680-R

SDH3812-820-R

SDH3812-101-R

SDH3812-151-R

SDH3812-221-R

DCR

Ω

@20°C

(Typical)

0.027

0.045

0.062

0.069

0.104

0.148

0.220

0.265

0.342

0.398

0.612

0.750

1.132

1.583

2.000

2.750

3.042

4.542

7.017

DCR

Ω

@20°C

(Maximum)

0.032

0.054

0.074

0.083

0.124

0.177

0.264

0.317

0.410

0.478

0.735

0.900

1.358

1.900

2.400

3.300

3.650

5.450

8.420

K-factor

(4)

145.2

100.6

87.1

76.9

62.2

52.3

42.2

35.3

33.5

30.4

23.8

20.1

16.1

13.8

11.4

10.3

9.4

7.6

6.3

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.

(2) Irms: DC current for an approximate

∆T

of 40°C without core loss. Derating is

necessary for AC currents. PCB layout, trace thickness and width, air-flow, and

proximity of other heat generating components will affect the temperature rise. It

is recommended that the temperature of the part not exceed 125°C under worst

case operating conditions verified in the end application.

(3) Isat Amperes peak for 30% maximum rolloff (@25°C)

(4) K-factor: Used to determine B p-p for core loss (see graph).

B p-p = K*L*∆I, B p-p(mT), K: (K factor from table), L: (Inductance in uH),

∆I

(Peak to peak ripple current in Amps).

(5) Part Number Definition: SDH3812-xxx-R

SDH3812 = Product code and size; -xxx = Inductance value in uH;

R = decimal point; If no R is present, third character = # of zeros.

-R suffix = RoHS compliant

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