Technical Data DS4311

Effective September 2017

DRQ

Dual winding, high power density, shielded drum core power inductors

5

www.eaton.com/electronics

Product specifications

1. Open Circuit Inductance Test Parameters: 100 kHz, 0.25 V

Parallel: (1,2 -4,3) Series: (1-4) tie (2-3)

2. RMS current for an approximate DT of 40 °C without core loss.

It is recommended that the temperature of the part not exceed +125 °C.

3. Peak current for approximately 30% roll-off at 20°C

4. DCR limits @ +20 °C

5. Applied Volt-Time product (V-µs) across the inductor. This value represents

the applied V-µs at 100 kHz necessary to generate a core loss equal to 10%

of the total losses for a 40 °C temperature rise.

6. Turns Ratio (1:3):(2-4) 1:1

7. Part number definition: DRQxxx-yyy-

- DRQxxx = product code and size,

- yyy = inductance value in µH,

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

- “-R” suffix = RoHS complian

Part Number

Rated

Inductance

(µH)

Parallel Ratings

Series Ratings

±20%

(µH)

I

rms

2

(A)

I

sat

3

(A)

Peak

typ.

µ-sec

±20%

(µH)

I

rms

2

(A)

I

sat

3

(A)

Peak

typ.

µ-sec

DRQ127-R47-R

0.47

0.419

17.9

56.0

0.00195

3.50

1.676

8.94

28

0.0078

7.00

DRQ127-1R0-R

1.00

0.821

15.5

40.0

0.00261

4.90

3.284

7.74

20

0.0104

9.80

DRQ127-1R5-R

1.50

1.357

13.5

31.1

0.00341

6.30

5.428

6.77

15.6

0.0137

12.60

DRQ127-2R2-R

2.20

2.027

12.5

25.5

0.00373

7.70

8.108

6.23

12.7

0.0161

15.4

DRQ127-3R3-R

3.30

2.831

10.4

21.5

0.00567

9.10

11.32

5.23

10.8

0.0229

18.2

DRQ127-4R7-R

4.70

4.841

8.25

16.5

0.00917

11.9

19.36

4.13

8.24

0.0367

23.8

DRQ127-6R8-R

6.80

7.387

7.34

13.3

0.0116

14.7

29.55

3.67

6.67

0.0465

29.4

DRQ127-8R2-R

8.20

8.861

6.32

12.2

0.0157

16.1

35.44

3.16

6.09

0.0627

32.2

DRQ127-100-R

10.0

10.47

6.04

11.2

0.0172

17.5

41.88

3.02

5.60

0.0686

35.0

DRQ127-150-R

15.0

14.09

5.03

9.66

0.0247

20.3

56.36

2.51

4.83

0.0990

40.6

DRQ127-220-R

22.0

22.93

4.00

7.57

0.0391

25.9

91.72

2.00

3.78

0.157

51.8

DRQ127-330-R

33.0

33.92

3.23

6.22

0.0600

31.5

135.7

1.61

3.11

0.241

63.0

DRQ127-470-R

47.0

47.05

2.95

5.28

0.0719

37.1

188.2

1.47

2.64

0.288

74.2

DRQ127-680-R

68.0

66.48

2.44

4.44

0.105

44.1

265.9

1.22

2.22

0.421

88.2

DRQ127-820-R

82.0

79.75

2.09

4.06

0.143

48.3

319.0

1.04

2.03

0.573

96.6

DRQ127-101-R

100

99.31

1.96

3.64

0.163

53.9

397.2

0.980

1.82

0.653

107.8

DRQ127-151-R

150

144.9

1.59

3.01

0.247

65.1

579.6

0.796

1.51

0.989

130.2

DRQ127-221-R

220

221.5

1.29

2.43

0.376

80.5

886.0

0.645

1.22

1.50

161

DRQ127-331-R

330

323.6

1.04

2.01

0.574

97.3

1294

0.522

1.01

2.30

195

DRQ127-471-R

470

467.1

0.85

1.68

0.861

117

1868

0.427

0.838

3.44

234

DRQ127-681-R

680

676.7

0.76

1.39

1.08

141

2707

0.380

0.697

4.32

282

DRQ127-821-R

820

818.1

0.65

1.27

1.47

155

3272

0.325

0.633

5.88

310

DRQ127-102-R

1000

1005

0.61

1.14

1.66

172

4020

0.307

0.571

6.64

344