Technical Data DS4311

Effective September 2017

DRQ

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

4

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

DRQ125-R47-R

0.47

0.456

17.6

33.0

0.0018

3.17

1.824

8.80

16.5

0.0078

6.34

DRQ125-1R0-R

1.00

0.894

15.0

23.6

0.0024

4.43

3.576

7.51

11.8

0.0096

8.86

DRQ125-1R5-R

1.50

1.478

13.8

18.3

0.0029

5.70

5.912

6.89

9.15

0.0114

11.40

DRQ125-2R2-R

2.20

2.208

10.9

15.0

0.0045

6.97

8.832

5.46

7.50

0.0182

13.9

DRQ125-3R3-R

3.30

3.084

9.26

12.7

0.0063

8.23

12.34

4.63

6.35

0.0253

16.5

DRQ125-4R7-R

4.70

5.274

7.18

9.71

0.0105

10.8

21.10

3.59

4.86

0.0420

21.6

DRQ125-6R8-R

6.80

6.588

6.64

8.68

0.0123

12.0

26.35

3.32

4.34

0.0492

24.0

DRQ125-8R2-R

8.20

8.048

5.54

7.86

0.0176

13.3

32.19

2.77

3.93

0.0705

26.6

DRQ125-100-R

10.0

9.654

5.35

7.17

0.0189

14.6

38.62

2.67

3.59

0.0757

29.2

DRQ125-150-R

15.0

15.35

4.27

5.69

0.0298

18.4

61.40

2.13

2.85

0.120

36.8

DRQ125-220-R

22.0

22.36

3.70

4.71

0.0396

22.2

89.44

1.84

2.36

0.159

44.4

DRQ125-330-R

33.0

33.74

3.28

3.84

0.0505

27.2

135.0

1.64

1.92

0.203

54.4

DRQ125-470-R

47.0

47.47

2.71

3.24

0.0740

32.3

189.9

1.35

1.62

0.297

64.6

DRQ125-680-R

68.0

67.91

2.22

2.70

0.101

38.6

271.6

1.11

1.35

0.440

77.2

DRQ125-820-R

82.0

86.89

2.05

2.39

0.128

43.7

347.6

1.03

1.20

0.515

87.4

DRQ125-101-R

100

102.7

1.78

2.20

0.170

47.5

410.8

0.892

1.10

0.682

95.0

DRQ125-151-R

150

151.1

1.48

1.81

0.248

57.6

604.4

0.739

0.905

0.991

115.2

DRQ125-221-R

220

216.8

1.19

1.51

0.384

69.0

867.2

0.594

0.755

1.54

138

DRQ125-331-R

330

332.6

1.06

1.22

0.482

85.5

1330

0.530

0.610

1.93

171

DRQ125-471-R

470

473.1

0.87

1.02

0.718

102

1892

0.434

0.510

2.87

204

DRQ125-681-R

680

679.8

0.70

0.85

1.10

122

2719

0.350

0.425

4.42

244

DRQ125-821-R

820

828.0

0.60

0.77

1.49

135

3312

0.301

0.385

5.96

270

DRQ125-102-R

1000

1008

0.57

0.70

1.69

149

4032

0.283

0.350

6.76

298