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3-127-623
Common Mode Choke, 3.7 mH, 20 A, DKIV-1 Series, Radial Leaded
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- Manufacturer: SCHURTER
- Product type: Radial Leaded Common Mode Chokes / Filters
- SVHC: No SVHC (21-Jan-2025)
- Inductance: 3.7mH
- Product Range: DKIV-1 Series
- DC Current Rating: 20A
- DC Resistance Max: 2700µohm
- Operating Temperature Max: 100°C
- Operating Temperature Min: -40°C
| Delivery and price | |
|---|---|
| Units per pack | 50 |
| Price | 14.93 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**Suppression Chokes** https://www.schurter.com /PG81_82 DKIV-1 Compensated High Current Choke, 1-phase See below: **Approvals and Compliances** ## **Description** - Current compensated choke - 1-phase choke - THT-terminals - Flange for mounting onto printed circuit board ## **Unique Selling Proposition** - Compact size and light weight - Small footprint on PCB - Open design optimizes heat dissipation - Nanocrystalline or ferrite ring cores ## **Applications** - Frequency converter - Charge stations - UPS-systems - Switching power supplies ## **References** Alternative: Horizontal version DKIH-1 ## **Weblinks** pdf data sheet, html datasheet, General Product Information, Approvals, Distributor-Stock-Check, Detailed request for product, SPICE Library, Landing Page ## **Technical Data** |**Technical Data**|||| |---|---|---|---| |Rated voltage|IEC, UL: 300 VAC|Test Voltage|2500 VDC, 2 sec, winding to winding| |CSA: 250 VAC||Climatic Category|40/100/21 acc. to IEC 60068-1| ||max. 450 VDC|Allowable Operation Temp.|-40°C to 100°C| |Rated Current|10-50 A @ Ta 40°C||| |Rated inductance|0.15-8.2 mH, Tol.-30% +50%||| |Power Operating Frequency|0-400 Hz||| |Terminal Type|THT||| |Weight|25-140 g||| |Material|UL 94V-0||| ## **Approvals and Compliances** Detailed information on product approvals, code requirements, usage instructions and detailed test conditions can be looked up in Details about Approvals 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 agreements 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 Type: DKIV-1 |**Approval Logo**|**Approval Logo**|**Certificates**|**Certification Body**|**Description**| |---|---|---|---|---| |&||VDE Approvals|VDE|Certificate Number: 40052999| |WAL|us|UL Approvals|UL|UR File Number: E495089| ## **Application standards** Application standards where the product can be used |**Organization**|**Design**|**Standard**|**Description**| |---|---|---|---| ||Suitable for applications acc.|IEC/UL 62368-1|Audio/video, information and communication technology equipment - Part| ||||1: Safety requirements| EMC Products **1** **Suppression Chokes** https://www.schurter.com /PG81_82 DKIV-1 ## **Compliances** The product complies with following Guide Lines **Identification Details Initiator** CE declaration of conformity SCHURTER AG cA UKCA declaration of conformity SCHURTER AG RoHS SCHURTER AG ~~©~~ China RoHS SCHURTER AG REACH SCHURTER AG ## **Description** 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. The UKCA marking declares that the product complies with the applicable requirements laid down in the British Amendment of Regulation (EC) 765/2008. 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]** 36-10 **==> picture [146 x 91] intentionally omitted <==** **----- Start of picture text -----**<br> Ss 8S<br>, Eg<br>| I<br>' +0.3<br>ø1.25 0<br>35 max.<br>+1 -0.5<br>5<br>**----- End of picture text -----**<br> **==> picture [214 x 143] intentionally omitted <==** **----- Start of picture text -----**<br> 26.2 [±0.5]<br>25.4±0.2<br>= ¥ 27 ±0.3<br>l _<br>||<br>36 [±0.5]<br>4.5<br> ±0.2<br>±0.1 20<br>ø3.3<br>**----- End of picture text -----**<br> EMC Products **2** **Suppression Chokes** https://www.schurter.com /PG81_82 DKIV-1 ## 36-12 **==> picture [439 x 162] intentionally omitted <==** **----- Start of picture text -----**<br> 26.2 [±0.5] 27 [±0.2]<br>25.4 ±0.3<br>36 [±0.5]<br>+0.3<br>ø1.5 0<br>4.5<br>±0.1<br>ø3.3<br> ±0.2<br>20<br>35 max.<br>+1 -0.5<br>5<br>**----- End of picture text -----**<br> 43-16 **==> picture [161 x 129] intentionally omitted <==** **----- Start of picture text -----**<br> +0.3<br>ø1.6 0<br>45 max.<br>+1 -0.5<br>5<br>**----- End of picture text -----**<br> **==> picture [246 x 131] intentionally omitted <==** **----- Start of picture text -----**<br> 26.2 [±0.5]<br>28 [±0.2]<br>33 ±0.3<br>42.4 [±0.5]<br>5<br>±0.1<br>ø3.3<br> ±0.2<br>20<br>**----- End of picture text -----**<br> EMC Products **3** **Suppression Chokes** https://www.schurter.com /PG81_82 DKIV-1 43-20 **==> picture [164 x 139] intentionally omitted <==** **----- Start of picture text -----**<br> +0.3<br>ø2 0<br>45 max.<br>+1 -0.5<br>5<br>**----- End of picture text -----**<br> **==> picture [24 x 6] intentionally omitted <==** **----- Start of picture text -----**<br> 26.2 [±0.5]<br>**----- End of picture text -----**<br> **==> picture [72 x 126] intentionally omitted <==** **==> picture [162 x 121] intentionally omitted <==** **----- Start of picture text -----**<br> 28 [±0.2]<br>33 ±0.3<br>42.4 [±0.5]<br>5<br>±0.1<br>ø3.3<br> ±0.2<br>20<br>**----- End of picture text -----**<br> 43-25 **==> picture [391 x 139] intentionally omitted <==** **----- Start of picture text -----**<br> 26.2 [±0.5]<br>28 [±0.2]<br>33 ±0.3<br>42.4 [±0.5]<br>+0.3<br>ø2.24 0<br>5<br> ±0.2<br>±0.1 20<br>43 max. ø3.3<br>+1 -0.5<br>5<br>**----- End of picture text -----**<br> EMC Products **4** **Suppression Chokes** https://www.schurter.com /PG81_82 DKIV-1 ## 53-32 **==> picture [273 x 171] intentionally omitted <==** **----- Start of picture text -----**<br> 32.6 [±0.5]<br>+0.3<br>ø2.24 0<br>49 max.<br>+1 -0.5<br>5<br>**----- End of picture text -----**<br> **==> picture [162 x 116] intentionally omitted <==** **----- Start of picture text -----**<br> 35 [±0.2]<br>43 ±0.3<br>53 [±0.5]<br>6.5<br>±0.1 ±0.2<br>ø3.3 25<br>**----- End of picture text -----**<br> 53-40 **==> picture [216 x 129] intentionally omitted <==** **----- Start of picture text -----**<br> 32.6 [±0.5]<br>+0.3<br>ø2.5 0<br>49 max.<br>+1 -0.5<br>5<br>**----- End of picture text -----**<br> **==> picture [120 x 92] intentionally omitted <==** **----- Start of picture text -----**<br> 35 ±0.2<br>43 ±0.3<br>53 [±0.5]<br>6.5<br> ±0.2<br>±0.1 25<br>ø3.3<br>**----- End of picture text -----**<br> EMC Products **5** **Suppression Chokes** https://www.schurter.com /PG81_82 DKIV-1 53-50 **==> picture [170 x 131] intentionally omitted <==** **----- Start of picture text -----**<br> +0.3<br>ø2.5 0<br>49 max.<br>+1 -0.5<br>5<br>**----- End of picture text -----**<br> **==> picture [267 x 133] intentionally omitted <==** **----- Start of picture text -----**<br> 32.6 [±0.5]<br>39.6 [±0.2]<br>34.4 [±0.2]<br>43 ±0.2<br>53 [±0.5]<br>6.5<br>±0.1 ±0.2<br>ø3.3 25<br>**----- End of picture text -----**<br> ## **Diagrams** 1 2 3 4 1 phase EMC Products **6** **Suppression Chokes** https://www.schurter.com /PG81_82 DKIV-1 ## **Impedance curves** ## DKIV-1 10-12A ## DKIV-1 10-12A NK ## DKIV-1 16-25A ## DKIV-1 16-25A NK ## DKIV-1 32-50A DKIV-1 32-50A NK ## **All Variants** |**In [A]**<br>**Nanocrystalline**<br>**core [NK]**<br>**Ln [mH]**<br>**Rcu**<br>**[m**Ω**]**<br>**Tripped Power**<br>**Dissipation [W]**<br>**fRES**<br>**[MHz]**<br>**Copper ø**<br>**[mm]**<br>**Weight [g]**<br>**Housing**<br>**Packing unit [pcs.]**<br>**Order Number**<br>10<br>-<br>1<br>10<br>2<br>1.19<br>1.25<br>25 g<br>36-10<br>40<br>3-127-596|█| |---|---| |10<br>NK<br>8.2<br>10<br>2<br>0.97<br>1.25<br>35 g<br>36-10<br>40<br>3-127-620|█| |12<br>-<br>0.9<br>7<br>2.02<br>1.35<br>1.5<br>35 g<br>36-12<br>40<br>3-127-597|█| |12<br>NK<br>7.2<br>7<br>2.02<br>1.26<br>1.5<br>40 g<br>36-12<br>40<br>3-127-621|█| |16<br>-<br>0.9<br>5.7<br>2.92<br>0.91<br>1.6<br>50 g<br>43-16<br>40<br>3-127-598|█| |16<br>NK<br>7.3<br>5.7<br>2.92<br>1.26<br>1.6<br>50 g<br>43-16<br>40<br>3-127-622|█| |20<br>-<br>0.5<br>2.7<br>2.16<br>1.26<br>2<br>55 g<br>43-20<br>40<br>3-127-599|█| |20<br>NK<br>3.7<br>2.7<br>2.16<br>3.17<br>2<br>55 g<br>43-20<br>40<br>3-127-623|█| |25<br>-<br>0.23<br>1.7<br>2.13<br>1.04<br>2.24<br>55 g<br>43-25<br>40<br>3-127-600|█| |25<br>NK<br>1.8<br>1.7<br>2.13<br>10.3<br>2.24<br>55 g<br>43-25<br>40<br>3-127-624|█| |32<br>-<br>0.75<br>2.6<br>5.32<br>0.47<br>2.24<br>112 g<br>53-32<br>20<br>3-127-601|█| |32<br>NK<br>7.2<br>2.6<br>5.32<br>3.62<br>2.24<br>125 g<br>53-32<br>20<br>3-127-625|█| |40<br>-<br>0.45<br>1.7<br>5.44<br>0.5<br>2.5<br>112 g<br>53-40<br>20<br>3-127-614|█| |40<br>NK<br>4.3<br>1.7<br>5.44<br>6.54<br>2.5<br>125 g<br>53-40<br>20<br>3-127-626|█| |50<br>-<br>0.15<br>0.5<br>2.5<br>0.47<br>2 x 2.5<br>125 g<br>53-50<br>20<br>3-127-619|█| |50<br>NK<br>1.4<br>0.5<br>2.5<br>13.46<br>2 x 2.5<br>140 g<br>53-50<br>20<br>3-127-627|█| █ Most Popular. Availability for all products can be searched real-time:https://www.schurter.com/en/Stock-Check/Stock-Check-SCHURTER 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. However, users should independently evaluate the suitability and test each product selected for their own applications.~~ EMC Products **7**
Updated at June 10, 2026
SCHURTER is a globally recognized innovator and manufacturer of high-quality electronic components, specializing in products that ensure a safe and clean supply of power. With a strong reputation in the electronics and PCB assembly industries, the company delivers reliable solutions engineered to protect critical circuits, streamline device operation, and optimize electrical performance across diverse applications. The core of our SCHURTER portfolio revolves around comprehensive circuit protection. We carry an extensive selection of standard and resettable fuses, accompanied by robust fuse holders, to safeguard sensitive electronics against overcurrent conditions. Furthermore, our offering features high-performance thermal circuit breakers and associated accessories, providing dependable protection and rapid reset capabilities for demanding industrial and commercial environments. Beyond fundamental circuit protection, SCHURTER excels in electromagnetic compatibility (EMC) and RFI suppression technologies. Our range includes precision-engineered power line filters and common mode chokes designed to mitigate electromagnetic interference and ensure signal integrity. Accompanied by specialized components such as AC/DC LED power supplies, SCHURTER provides the meticulous engineering and durability necessary for modern, high-reliability electronic design.
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