RT8532-8-4M8.

Common-mode Chokes RT series 

**DATA** SHEET 

## Current-compensated Chokes 

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Rated currents from 6 to 20 A 

Up to 600 VAC and VDC = ~~=~~ 2- and 3-wire configurations Horizontal and vertical PCB mounting types |) ~~oo~~ ROHS Ruggedized saturation and thermal behavior Open construction for forced and convection cooling Straightforward pin-out for easy PCB design S ~~[~~ 

RT common-mode chokes are mainly used to filter EMI noise on AC power lines up to 600 VAC. EMI noise of electronic equipment can go to the power lines and disturb the proper function of other devices like communication devices or control logic of robotics. Thus noise generated by the equipment from switched power electronics or by high slew rates of controllers needs to be filtered. RT common-mode chokes are used to suppress EMI noise in PCB integrated filter designs with line bypass capacitors or in combination with single phase filters for extra low leakage filter designs. 

## Performance indicators ~~e~~ e 

## **Features and benefits** 

## **Technical specifications** 

|**Maximum continuous operating voltage**<br>**Operating frequency**|600 VAC (3-line) and 300 VAC/425 VDC (2-line)<br>dc to 400 Hz|
|---|---|
|**Rated currents**<br>**High potential test voltage winding-to-**|6 to 20 A @ 60°C max. convection cooling<br>2500 VAC, 60 sec, guaranteed, 2 sec factory test|
|**winding @ 25°C**<br>**Temperature range (operation and storage)**<br>**Flammability corresponding to**|-40°C to +100°C (40/100/56)<br>UL 94 V-0|
|**Cooling**<br>**MTBF @ 40°C/230 V (Mil-HB-217F)**|convection/forced cooling<br>>5,000,000 hours|



l Cost-effective PCB designs for up to 32 A with forced cooling * Compact size and light weight Low magnetic leakage flux Excellent winding insulation ~~PO~~ Standardized foot print Broad range of inductance ratings | Custom-specific versions on request 

* See Application Note for forced cooling 

## **Typical applications** 

AC and DC filtering for midsize power range drives, photovoltaic inverters, fast chargers, charging stations, UPS and switch mode power supplies Filter with low leakage current noise or improved immunity against grid disturbances 

| Electronic devices, automation and (industrial) LED lighting Communication devices Medical and laboratory Equipment l Converters ~~ee~~ Typical electrical schematic ** 

** 2-line chokes (L1 and L2, 2x Ln), 3-line chokes (L1 to L3, 3x Ln) 

**Schaffner Group Datasheets** 2018 

2 EMC/EMI Products 

## **RT Series** 

|**Selection table**|**convection**|***forced cooling**|**Inductance**|****typ. Inductance**|**Resistance**|**Choke**|*****Ø Pin**|**Weight**|
|---|---|---|---|---|---|---|---|---|
||**cooling nominal**|**3 m/s nominal**|**Ln @ 25˚C**|**Ls @ 25˚C**|**R @ 25˚C**||||
||**current @ 60˚C**|**current @ 60˚C**|**100kHz**|**100kHz**|||**±0.1**||
||**[A]**|**[A]**|**[mH/path]**|**[μH/path]**|**[mΩ/path]**|**[size]**|**ØP [mm]**|**[g]**|
|**RT 8122-6-10M0**|6|9.5|10|30|33|1|1.1|80|
|**RT 8122-8-8M0**|8|12.5|8|24.8|21|1|1.3|80|
|**RT 8122-10-6M0**|10|16|6|19.2|16|1|1.4|80|
|**RT 8122-12-5M0**|12|19|5|20.5|14|2|1.5|100|
|**RT 8122-16-4M0**|16|27|4|17.6|10|2|1.8|110|
|**RT 8122-20-3M0**|20|32|3|13.5|7|3|2|160|
|**RT 8522-6-10M0**|6|9.5|10|31.5|33|4|1.1|70|
|**RT 8522-8-8M0**|8|12.5|8|24|21|4|1.3|80|
|**RT 8522-10-6M0**|10|16|6|19.2|16|4|1.4|80|
|**RT 8522-12-5M0**|12|19|5|23|14|5|1.5|90|
|**RT 8522-16-4M0**|16|27|4|18.8|10|5|1.8|110|
|**RT 8522-20-3M0**|20|32|3|13.5|7|6|2.0|150|
|**RT 8132-6-6M0**|6|9.5|6|18|27|7|1.1|80|
|**RT 8132-8-4M8**|8|12.5|4.8|14.9|17|7|1.3|90|
|**RT 8132-10-4M0**|10|16|4|16|15|8|1.5|110|
|**RT 8132-12-3M6**|12|19|3.6|14.4|12|8|1.6|120|
|**RT 8132-16-3M0**|16|27|3|12|8|9|1.8|170|
|**RT 8132-20-2M5**|20|32|2.5|10|7|9|2.1|190|
|**RT 8532-6-6M0**|6|9.5|6|18|27|10|1.1|90|
|**RT 8532-8-4M8**|8|12.5|4.8|13.9|17|10|1.3|90|
|**RT 8532-10-4M0**|10|16|4|16|15|11|1.5|110|
|**RT 8532-12-3M6**|12|19|3.6|15.1|12|11|1.6|120|
|**RT 8532-16-3M0**|16|27|3|13.8|8|12|1.8|160|
|**RT 8532-20-2M5**|20|32|2.5|10.8|7|12|2.1|190|



Test conditions: Inductance tolerance: +50%, –30%; Resistance tolerance: +15% @ 25°C; Electrical characteristics @ 25°C: ±2°C 

* typical current for forced cooling with 3 m/s. Due to the possible turbulences and degradation of the air stream within an equipment please consider thermal validation. 

** typical stray inductance, max is 0.1% of Ln 

*** Length of pin (Dimension P) is always 5.5 mm ± 1 

## Product selector 

Examples: RT 8532-16-3M0: Vertical 3-line choke for 16 A, with 3 mH ; RT 8122-20-3M0: Horizontal 2-line choke for 20 A, with 3 mH 

**Schaffner Group Datasheets** 2018 

3 EMC/EMI Products 

## **Typical choke attenuation/resonance frequency characteristics** 

Per CISPR 17; 50 Ω/50 Ω asym 

RT 8122 

RT 8132 

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RT 8522 RT 8532 

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**Schaffner Group Datasheets** 2018 

4 EMC/EMI Products 

## **Mechanical data: Horizontal chokes (2-line and 3-line)** 

All dimensions in mm 

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Horizontal 2-line chokes (Size 1-3)<br>**----- End of picture text -----**<br>


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Horizontal 3-line chokes (Size 7-9)<br>**----- End of picture text -----**<br>


## **Dimensions** 

|**Dimensions**|||||
|---|---|---|---|---|
||**A**|**B**<br>**ØD (max)**|**H (max)**|**ØD1**<br>**ØD2**|
||(±0.5)|(±0.5)||(±0.5)|
|**Size1 (RT 8122-6-10M0, RT 8122-8-8M0, RT 8122-10-6M0)**|21|25<br>45|34|42<br>1.5|
|**SIze2 (RT 8122-12-5M0, RT 8122-16-4M0)**|26|30<br>51|33|48<br>1.9|
|**Size3 (RT 8122-20-3M0)**|32|36<br>57|37|54<br>2.1|
||**ØA**|**ØD (max)**|**H (max)**|**ØD1**<br>**ØD2**|
||(±0.5)|||(±0.5)|
|**Size 7 (RT 8132-6-6M0, RT 8132-8-4M8)**|38|-<br>46|34|43<br>1.4|
|**Size 8 (RT 8132-10-4M0,RT 8132-12-3M6)**|44|-<br>51|33|48<br>1.7|
|**Size 9 (RT 8132-16-3M0, RT 8132-20-2M5)**|49|-<br>57|37|54<br>2.2|



Please visit www.schaffner.com to find more details on filter connections. 

**Schaffner Group Datasheets** 2018 

5 EMC/EMI Products 

## **Mechanical data: Vertical chokes (2-line and 3-line)** 

All dimensions in mm 

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Vertical 2-line chokes (Size 4-6)<br>**----- End of picture text -----**<br>


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Vertical 3-line chokes (Size 10-12)<br>W W<br>**----- End of picture text -----**<br>


## **Dimensions** 

|**Dimensions**||||||||
|---|---|---|---|---|---|---|---|
||**A**<br>**A1**<br>**(±0.5)**<br>**(±0.5)**|**B**<br>**(±0.5)**|**L**<br>**(max)**|**W**<br><br>**(max)**<br>**(max**|**H**<br>**L1**<br>**L2**<br>**L3**<br>**W1**<br>**)**<br>**(±0.5)**<br>**(±0.5)**<br>**(±0.5)**<br>**(**|**W2**<br>**ØD2**<br>**X**<br>**±0.5)**|**Y**|
|**Size 4 (RT 8522-6-10M0, RT 8522-8-8M0, RT 8522-10-6M0)**|16<br>-|20|43|32<br>4|4<br>32<br>26<br>-<br>27.8|22<br>1.5<br>3|2.9|
|**SIze 5 (RT 8522-12-5M0, RT 8522-16-4M0)**|16<br>-|22|50|32<br>5|2<br>39<br>33<br>-<br>27|23<br>1.9<br>3|2|
|**Size 6 (RT 8522-20-3M0)**|16<br>-|22|56|32<br>5|7<br>42<br>35<br>-<br>31.2|25<br>2.1<br>3.5|3.1|
|||||||||
|**Size 10 (RT 8532-6-6M0, RT 8532-8-4M8)**|36<br>18|24|44|32<br>4|7<br>41<br>27<br>9<br>29|-<br>1.4<br>2.5|2.5|
|**Size 11 (RT 8532-10-4M0,RT 8532-12-3M6)**|38<br>19|24|49|34<br>5|3<br>46<br>28.5<br>9.5<br>31|-<br>1.7<br>4<br>-<br>2.2<br>3.5|3.5<br>2.5|
|**Size 12 (RT 8532-16-3M0, RT 8532-20-2M5)**|46<br>23|29|56|37<br>6|0<br>53<br>34.5<br>11.5<br>34|||



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> 6 ~~|~~ EMC/EMI Products ~~|~~ **Schaffner Group Datasheets** 

**Schaffner Group Datasheets** 2018 

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