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Technical Data 4315

Effective April 2014

DR Series High power density,

high efficiency, shielded inductors

Product specifications

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

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 approximate 30% roll off at 20°C.

4. DCR limits @ 20°C.

5. Applied Volt-Time product (V-μS) across the inductor. This value represent the

applied V-μSat 100kHz necessary to generate a core loss equal to 10% of the

total losses for 40°C temperature rise.

6. Part number definition: DRxxx-yyy-R

- DRxxx = product code and size,

- yyy = inductance value in μH,

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

- “-R” suffix = RoHS compliant

Part Number

Rated

Inductance

(μH)

±20%

(μH)

I

rms

2

Amps

I

sat

3

Amps

Peak

(Ω)

Typ.

Typ.

DR73-R33-R

0.33

0.306

6.21

14.4

0.0073

1.98

DR73-1R0-R

1.00

0.992

5.28

7.97

0.0102

3.56

DR73-1R5-R

1.50

1.482

4.67

6.52

0.0130

4.36

DR73-2R2-R

2.20

2.070

4.15

5.52

0.0165

5.15

DR73-3R3-R

3.30

3.540

3.31

4.22

0.0259

6.73

DR73-4R7-R

4.70

4.422

3.09

3.78

0.0297

7.52

DR73-6R8-R

6.80

6.480

2.55

3.12

0.0435

9.11

DR73-8R2-R

8.20

8.930

2.19

2.66

0.0592

10.7

DR73-100-R

10.0

10.30

2.08

2.47

0.0656

11.5

DR73-150-R

15.0

15.01

1.83

2.05

0.0844

13.9

DR73-220-R

22.0

22.65

1.62

1.67

0.107

17.0

DR73-330-R

33.0

34.41

1.31

1.35

0.166

21.0

DR73-470-R

47.0

48.62

1.08

1.14

0.241

24.9

DR73-680-R

68.0

68.91

0.89

0.96

0.358

29.7

DR73-820-R

82.0

80.37

0.86

0.89

0.384

32.1

DR73-101-R

100

101.4

0.73

0.79

0.527

36.0

DR73-151-R

150

150.9

0.58

0.65

0.851

44.0

DR73-221-R

220

223.3

0.52

0.53

1.05

53.5

DR73-331-R

330

325.5

0.42

0.44

1.59

64.5

DR73-471-R

470

465.8

0.35

0.37

2.36

77.2

DR73-681-R

680

676.5

0.29

0.31

3.47

93.1

DR73-821-R

820

821.7

0.27

0.28

3.93

103

DR73-102-R

1000

995.0

0.26

0.25

4.34

113