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© Coilcraft Inc. 2013

This product may not be used in medical or high

risk applications without prior Coilcraft approval.

Specification subject to change without notice.

Please check web site for latest information.

Output Power Chokes – Toroid Styles

Document 139-1

Document 139-1 Revised 08/15/12

The DMT power inductors are designed primarily for use

as output chokes in switching power supplies. The toroid

core design offers the highest inductance values in the

smallest part size, while minimizing external magnetic

fields.

Inductance values range from 7 µH to over 1.4 mH with

current ratings as high as 12 Amps.

These parts are ideal for any application requiring a high

DC current bias. They are well suited for use in switch-

mode power supplies and can be used as ripple filters

and differential mode EMI filters.

• Industry standard footprint.

• UL1446 Class B (130°C) Insulation System (UL File E83628)

• All plastic material UL94V-0.

1

1

1

0.063

1,6

Schematic

Recommended

Board Layout

L max

W max

(pin 2)

2

2

2

X

Y

for mounting

stability

4

4

2

4

Z

V

Z

0.120/0.180

3,05/4,57

0.052

1,32

0.052

1,32

H max

DMT1 Series

Current

DCR

SRF

Part

min

rating

max

typ

H

L

W

X

Y

Z

V

number

(µH)

(A)

(Ohms) (MHz)

max

max

max

±0.01/0,25 ±0.01/0,25 pins 1 & 4 pins 1 & 4

DMT1-7-10L

7

10.0

0.01

28.8

1.1/27,9 1.3/33,0 0.7/17,8

0.80/20,3

0.40/10,2

0.052/1,32 0.063/1,60

DMT1-16-6.7L

16

6.7

0.02

16.6

1.1/27,9 1.3/33,0 0.7/17,8

0.80/20,3

0.40/10,2

0.041/1,04 0.052/1,32

DMT1-26-5.1L

26

5.1

0.04

11.5

1.1/27,9 1.3/33,0 0.7/17,8

0.80/20,3

0.40/10,2

0.052/1,32 0.063/1,60

DMT1-43-3.8L

43

3.8

0.07

7.28

1.1/27,9 1.3/33,0 0.7/17,8

0.80/20,3

0.40/10,2

0.052/1,32 0.063/1,60

DMT1-84-2.4L

84

2.4

0.14

4.37

1.1/27,9 1.3/33,0 0.7/17,8

0.80/20,3

0.40/10,2

0.052/1,32 0.063/1,60

DMT1-180-1.5L 180

1.5

0.29

1.92

1.1/27,9 1.3/33,0 0.7/17,8

0.80/20,3

0.40/10,2

0.052/1,32 0.063/1,60

1. Minimum inductance at rated current.Tested at 15.75 kHz, 10 Gauss level.

2. Operating temperature range –40°C to +85°C.

3. Electrical specifications at 25°C.

Terminations: Tin-silver over copper

Weight

DMT1 series: 13.0 – 16.4 g

DMT2 series: 48.7 – 56.3 g

DMT3 series: 90.2 – 100.5 g