Description

• 125°C maximum total temperature operation

• Low profile surface mount inductor

• 12.5mm x 12.5mm x 4.5mm shielded drum core

• Ferrite core material

• Inductance range from 0.47µH to 1000µH

• Current range from 24.4 Amps to 0.44 Amps

• Frequency range up to 1MHz

Applications

• Notebook power, LCD panels

• Computer, DVD players, and portable power devices

• DC-DC converters

• Buck, boost, forward, and resonant converters

• Noise filtering and filter chokes

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

Packaging

• Supplied in tape and reel packaging, 750 per reel

DR124 Series

Low Profile Power Inductors

Part Number

Rated

OCL (1)

Irms(2)

Isat (3)

DCR

DCR

K-factor

Inductance

µH±20%

Amperes

Amperes

m

Ω

Ω @20°C

m

Ω

Ω @20°C

(4)

(µH)

(Typical)

(Maximum)

DR124-R47-R

0.47

0.42

16.0

24.40

2.2

2.7

17.51

DR124-1R0-R

1.0

0.83

13.9

18.00

3.00

3.6

12.50

DR124-1R5-R

1.5

1.37

11.1

14.00

4.75

5.7

9.73

DR124-2R2-R

2.2

2.04

9.1

11.45

5.92

7.1

7.96

DR124-3R9-R

3.9

3.80

7.0

8.40

12.50

15.0

5.84

DR124-4R7-R

4.7

4.88

6.5

7.65

13.50

16.2

5.15

DR124-6R8-R

6.8

6.10

5.6

6.47

18.06

21.7

4.61

DR124-8R2-R

8.2

7.45

5.2

6.22

21.67

26.0

4.17

DR124-100-R

10

8.94

4.5

5.80

23.33

28.0

3.81

DR124-120-R

12

11.5

4.1

4.96

31.67

38.0

3.50

DR124-150-R

15

14.2

3.6

4.62

37.30

44.8

3.02

DR124-180-R

18

16.2

3.4

4.32

46.97

56.4

2.82

DR124-220-R

22

20.7

3.2

3.83

53.99

64.8

2.50

DR124-270-R

27

25.7

2.8

3.44

66.67

80.0

2.24

DR124-330-R

33

31.2

2.6

3.12

80.83

97.0

2.04

DR124-390-R

39

37.3

2.3

2.85

110.00

132.0

1.86

DR124-470-R

47

44.0

2.2

2.63

124.66

149.6

1.72

DR124-560-R

56

54.9

2.0

2.35

144.32

173.2

1.54

DR124-680-R

68

67.1

1.8

2.13

183.33

220.0

1.39

DR124-820-R

82

80.5

1.7

1.94

212.72

255.3

1.27

DR124-101-R

100

95.1

1.5

1.79

256.67

308.0

1.17

DR124-121-R

120

111

1.3

1.65

311.18

373.4

1.08

DR124-151-R

150

146

1.3

1.44

371.02

445.2

0.94

DR124-181-R

180

179

1.1

1.30

501.66

602.0

0.87

DR124-221-R

220

216

1.0

1.15

558.00

669.6

0.77

DR124-271-R

270

256

0.88

1.09

725.00

870.0

0.71

DR124-331-R

330

327

0.83

0.92

825.00

990.0

0.63

DR124-471-R

470

460

0.68

0.74

1242.50

1491.0

0.53

DR124-681-R

680

669

0.56

0.65

1845.83

2215.0

0.45

DR124-821-R

820

825

0.53

0.62

2109.17

2351.0

0.40

DR124-102-R

1000

998

0.44

0.53

2898.00

3477.00

0.37

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.25V, 0.0Adc.

(2) Irms: DC current for an approximate ³T 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 approximately 25% rolloff (@25°C)

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

B p-p = K*L*³I, B p-p(mT), K: (K factor from table), L: (Inductance in µH),

³I (Peak to peak ripple current in Amps).

(5) Part Number Definition: DR124-xxx-R

DR124 = 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