SCHURTER-DFKF-28-0004

Suppression Chokes  

DFKF  

Magnetically Compensated Choke, 1-phase, flat design  

See below:  

Approvals and Compliances  

Description  

Applications  

– Current compensated choke  

– 1-phase choke  

– Attenuation of common mode interferences  

– Designed for 230/400 VAC applications  

– Chopper amplifiers  

– TH

T

–

terminals  

– Inductor horizontally positioned in housing  

– SMD version on request  

– DC drives and stepper motor controls  

– Switching power supplies  

Weblinks  

,

,

,

,  

,

,

T

e

chnical Data  

Rated voltage  

up to 44

0

V

AC  

UL 25

0

V

AC  

0.4 – 6.

3

A @

T

a

4

0 °C  

0.6 – 4

0

m

H,

T

o

l. -30% +50%  

50 / 6

0

H

z  

T

e

st Voltage  

Isolation Voltage  

Climatic Category  

Allowable Operation

T

e

mp.  

1.

8

k

V

,

5

0

H

z,

1

m

in, winding to winding  

2

k

V eff., winding to ambient  

25/100/21 acc. to IEC 60068-1  

-2

5

°

C to 10

0

°

C  

Rated Current  

Rated inductance  

Power Operating Frequency  

T

e

rminal

T

y

pe  

THT  

Weight  

5 – 1

6

g  

Material: Housing  

Sealing Compound  

UL 94V-0  

UL 94V-0  

Approvals and Compliances  

Detailed information on product approvals, code requirements, usage instructions and detailed test conditions can be looked up in

 

SCHURTER products are designed for use in industrial environments. They have approvals from independent testing bodies according to national  

and international standards. Products with specific characteristics and requirements such as required in the automotive sector according to IATF  

16949, medical technology according to ISO 13485 or in the aerospace industry can be offered exclusively with customer-specific, individual agree-  

ments by SCHURTER.  

Approvals  

The approval mark is used by the testing authorities to certify compliance with the safety requirements placed on electronic products.  

Approval Reference

T

y

pe: DFKF2  

Approval Logo  

Certificates  

Certification Body  

Description  

UL  

UL File Number: E72928  

Application standards  

Application standards where the product can be used  

Organization  

Design  

Standard  

Description  

Designed for applications acc.  

IEC/UL 62368-1  

IEC 62368-1 includes the basic requirements for safety of audio, video,  

information technology and office equipment.  

1

EMC Products  

Suppression Chokes  

DFKF  

Compliances  

The product complies with following Guide Lines  

Identification  

Details  

Initiator  

Description  

SCHURTER AG  

The CE marking declares that the product complies with the applicable  

requirements laid down in the harmonisation of Community legislation on  

its affixing in accordance with EU Regulation 765/2008.  

SCHURTER AG  

SCHURTER AG  

SCHURTER AG  

Directive RoHS 2011/65/EU, Amendment (EU) 2015/863  

The law SJ / T 11363-2006 (China RoHS) has been in force since 1 March  

2007. It is similar to the EU directive RoHS.  

On 1 June 2007, Regulation (EC) No 1907/2006 on the Registration,  

Evaluation, Authorization and Restriction of Chemicals 1 (abbreviated as  

“REACH”) entered into force.  

Dimensions [mm]  

Case 04-2  

Case 15-2  

1605

±±02  

20±  

2704 max0  

1.04

±±0.  

.0.  

1708 max0  

3

4

3

4

.

1

±

2

1

-±05  

305  

1±

±±0.  

±

15

±±02  

-±05  

305  

Diagrams  

RFI suppression of switching power supply  

Noise suppression filter  

1)  

2)  

1)  

2)  

3)  

3)  

1) Power line  

1) Power line  

2) Switching Power Supply  

3) Interference current  

2) Equipment  

3) Interference current  

2

EMC Products  

Suppression Chokes  

DFKF  

DFKF-18-xxxx  

DFKF-28-xxxx  

z [

Ω

]  

1M  

z [

Ω

]  

1M  

0.4A  

0.

6

A  

1A  

0.

6

A  

100k  

100k  

10k  

1k  

1.

2

A  

1.

4

A  

2A  

1.

5

A  

10k  

1k  

2A  

4A  

100  

100  

10  

4A  

6.

3

A  

10  

10k  

100k  

1M  

10M f

 

[Hz]  

10k  

100k  

1M  

10M f

 

[Hz]  

All Variants  

I

n

[A]  

L

n

[mH]  

R

cu  

[m

Ω

]  

T

r

ipped Power Dissi-  

pation [W]  

f

RES  

[MHz]  

Weight [g]  

Housings  

Packing unit [pcs.]  

Order Number  

█

█

0.4  

0.6  

1

40  

40  

1200  

1000  

360  

200  

310  

110  

60  

0.4  

0.7  

0.7  

0.6  

–

0.11  

0.2  

0.28  

0.45  

–

5g  

1

6

g  

1

6

g  

5g  

04-2  

15-2  

15-2  

04-2  

15-2  

04-2  

04-2  

15-2  

04-2  

15-2  

15-2  

48  

40  

40  

45  

40  

45  

45  

40  

45  

40  

40  

20  

1.2  

1.4  

1.5  

2

6.8  

27  

1

6

g  

5g  

3.3  

1.8  

6

0.5  

–

1.2  

–

5g  

2

100  

16  

0.8  

0.5  

0.9  

1

0.3  

2.5  

1.3  

2.5  

1

6

g  

5g  

█

█

4

0.7  

1.5  

0.6  

4

28  

1

6

g  

1

6

g  

6.3  

13  

█

Most Popula

r

.  

Availability for all products can be searched real-time:

The specifications, descriptions and illustrations indicated in this document are based on current  

information. All content is subject to modifications and amendments. Information furnished is believed  

to be accurate and reliable. Howeve

r

,

u

sers should independently evaluate the suitability and test each  

product selected for their own applications.  

3

EMC Products