Manufacturer of Passive Components

800-684-5322 Inside US

949-453-1811 Outside US

Copyright © 2012 by CT Magnetics, DBA Central Technologies. All rights reserved.

CT Magnetics reserves the right to make improvements or change specifications without notice

REV 10.24.12

CTDRQ127F

Series

From 0.47 µH to 1000 µH

SPECIFICATIONS

Part numbers indicate inductance tolerance available.

M = ±20%, N = ±30%

Ipeak: Based on DL/L0A = 30% Typ.

Irms: Based on temp. rise 40°C Typ.

DCR

Ipeak

Irms

DCR

Ipeak

Irms

Part

Inductance

(mΩ)

(A)

(A)

Inductance (mΩ)

(A)

(A)

Number

(µH)

Max.

Typ.

Typ.

(µH)

Max.

Typ.

Typ.

CTDRQ127F-R47N

0.47

5.5

56.00

17.90

1.676

21.6

28.00

8.940

CTDRQ127F-1R0N

1.0

6.7

40.00

15.50

3.284

26.0

20.00

7.740

CTDRQ127F-1R5N

1.5

7.6

31.10

13.50

5.428

30.6

15.60

6.770

CTDRQ127F-2R2N

2.2

9.2

25.50

12.50

8.108

33.8

12.70

6.230

CTDRQ127F-3R3N

3.3

11.0

21.50

10.40

11.320

40.0

10.80

5.230

CTDRQ127F-4R7N

4.7

13.5

16.50

8.25

19.360

50.0

8.240

4.130

CTDRQ127F-6R8N

6.8

18.3

13.30

7.34

29.550

65.6

6.670

3.670

CTDRQ127F-8R2N

8.2

19.1

12.20

6.32

35.440

71.4

6.090

3.160

CTDRQ127F-100M

10

24.1

11.20

6.04

41.880

92.1

5.600

3.020

CTDRQ127F-150M

15

33.3

9.66

5.03

56.360

129

4.830

2.510

CTDRQ127F-220M

22

50.3

7.57

4.00

91.720

192

3.780

2.000

CTDRQ127F-330M

33

66.4

6.22

3.23

135.70

265

3.110

1.610

CTDRQ127F-470M

47

89.8

5.28

2.95

188.20

353

2.640

1.470

CTDRQ127F-680M

68

123

4.44

2.44

265.90

469

2.220

1.220

CTDRQ127F-820M

82

153

4.06

2.09

319.00

578

2.030

1.040

CTDRQ127F-101M

100

175

3.64

1.96

397.20

701

1.820

0.980

CTDRQ127F-151M

150

261

3.01

1.59

579.60

1013

1.510

0.796

CTDRQ127F-221M

220

343

2.43

1.29

886.00

1380

1.220

0.645

CTDRQ127F-331M

330

540

2.01

1.04

1294.0

2172

1.010

0.522

CTDRQ127F-471M

470

865

1.68

0.85

1868.0

3300

0.838

0.427

CTDRQ127F-681M

680

1296

1.39

0.76

2707.0

4888

0.697

0.380

CTDRQ127F-821M

820

1632

1.27

0.65

3272.0

5896

0.633

0.325

CTDRQ127F-102M

1000

1992

1.14

0.61

4020.0

7202

0.571

0.307

Not Shown at Actual Size

CHARACTERISTICS

PHYSICAL DIMENSIONS

PAD LAYOUT

Description: SMD Shielded Dual Wound Inductor/Transformer.

Applications: As a SEPIC or flyback transformer. As a buck,

boost or coupled inductor. DC/DC Converters. VRM inductor for

CPU and DDR power supplies. Input and output filter chokes.

Operating Temperature: -40°C to +125°C (Temp. rise included)

Resistance to Solder Heat: 245°C, 10 Sec.

Inductance Tolerance: ±20%, ±30%

Testing: Inductance is tested on an HP4285A at 100KHz, 0.25V

Packaging: Tape & Reel.

Additional Information: Additional electrical & physical

information available upon request.

Samples available. See website for ordering information.

XXX

A

B

C

D

F

E

1

3

2

4

N1

N2

1

3

2

4

N1

N2

1

3

2

4

N1

N2

Dual Inductor

Series

Parallel

Schematics:

Marking:

Inductance Code

1

2

4

3

Dual Inductor Mode

Series Mode

2

1

3

4

2.50 Ref.

3.85 Ref.

0.50 Ref.

2

1

3

4

2.50 Ref.

3.85 Ref.

0.50 Ref.

A

B

C

D

E

F

Max.

Max.

Max.

12.50

12.50

8.0

5.0±0.3

1.80±0.2

7.60±0.2

0.49

0.49

0.31

0.20±0.012

0.071±0.0079

0.30±0.0079

Size

mm

inches

Parallel Ratings

Series Ratings

Unit: mm