Schaffner-RB8532-50-0M3

Common Mode Chokes RB series  

DATA

SHEET  

Current-compensated Chokes  

Rated currents from 16 to 50 A  

Approvals & Compliances  

Up to 600 VAC or 1000 VDC  

2- and 3-wire configurations  

Horizontal and vertical PCB mounting types  

Ruggedized saturation and thermal behavior  

RB common-mode chokes are mainly used to filter  

EMI noise on AC power lines up to 600 VAC but  

they are as well applicable in DC power lines of  

photovoltaic installations or similar applications up  

to 1000 VDC. EMI noise of electronic equipment  

can go to the power lines and disturb the proper  

function of other devices like TV sets or radios. Thus  

noise generated by the equipment from switched  

power electronics or by high slew rates of  

Open construction for forced and convection  

cooling  

Straightforward pin-out for easy PCB design  

controllers needs to be filtered. RB 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  

Features and Benefits  

Cost-effective PCB designs for up to 80 A with  

forced cooling*  

Compact size and light weight  

Low magnetic leakage flux  

Excellent winding insulation  

Standardized foot print  

Broad range of inductance ratings  

Custom-specific versions on request  

Evaluation Board and PCB footprints available  

Technical Specifications  

600 VAC/1000 VDC  

DC to 400 Hz  

Maximum continuous operating voltage  

Operating frequency  

*See application note for forced cooling  

0.2 to 3 MILLIHENRY  

Rated inductance  

Typical Applications  

High potential test voltage  

Temperature range (operation and storage)  

Flammability corresponding to  

Cooling  

-40°C to +125°C (40/125/21) acc. IEC 60068-1  

UL 94 V-0  

AC and DC filtering for midsize power range  

drives, photovoltaic inverters, fast chargers,  

charging stations, UPS and switch mode power  

supplies  

convection/forced cooling  

16 to 50 A @ 60°C max. convection cooling  

> 5,000,000 hours  

Rated currents  

Filter with low leakage current noise or improved  

immunity against grid disturbances  

Electronic devices, automation  

Converters  

MTBF @ 50°C/400 V (Mil-HB-217F)  

Typical electrical schematic  

2

Common Mode Chokes  

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RB Series  

Buy  

convection  

*forced cooling  

Inductance  

Ln @ 25˚C  

Inductance  

Ls @ 25˚C  

Resistance  

R @ 25˚C  

**Choke  

Ø Pin  

Length Weight  

Pin  

Eval.  

Selection table  

cooling nominal  

3 m/s nominal  

Board  

current @ 60˚C  

current @ 60˚C  

[A]  

16  

25  

36  

50  

[A]  

25  

39  

53  

80  

[mH/path]  

1.00  

[μH/path]  

[mΩ/path]  

[size]  

D [mm]  

2.0 0.1  

2.4 0.1  

2.2 0.1  

2.5 0.1  

L [mm]  

4.5 +0.5/-0  

4.5 +0.5/-0  

4.5 +0.5/-0  

5.0 +0.5/-0  

[g]  

130  

135  

180  

172  

No.  

1

6.3  

4.0  

3.6  

1.8  

4.8  

2.7  

1.5  

0.9  

1

1

2

2

RB6122-16-1M0  

RB6122-25-0M6  

RB6122-36-0M5  

RB6122-50-0M3  

0.64  

1

0.45  

1

0.25  

1

16  

25  

36  

50  

25  

39  

53  

80  

1.00  

0.64  

0.45  

0.25  

6.2  

3.9  

3.6  

2.0  

4.6  

2.6  

1.5  

0.9  

3

3

4

4

2.0 0.1  

2.4 0.1  

2.2 0.1  

2.5 0.1  

4.5 +0.5/-0  

4.5 +0.5/-0  

4.5 +0.5/-0  

5.0 +0.5/-0  

132  

126  

180  

175  

2

2

2

2

RB6522-16-1M0  

RB6522-25-0M6  

RB6522-36-0M5  

RB6522-50-0M3  

16  

25  

36  

50  

25  

39  

53  

83  

3.00  

2.00  

1.50  

0.75  

22.2  

13.6  

12.8  

6.5  

8.4  

4.2  

3.0  

1.7  

4

5

6

6

2.0 0.1  

2.65 0.1  

2.2 0.1  

2.5 0.1  

4.5 +0.5/-0  

5.0 +0.5/-0  

4.5 +0.5/-0  

5.0 +0.5/-0  

172  

268  

440  

430  

3

3

3

3

RB8522-16-3M0  

RB8522-25-2M0  

RB8522-36-1M5  

RB8522-50-0M8  

16  

25  

36  

50  

26.5  

41  

0.80  

0.47  

0.42  

0.18  

5.8  

3.3  

2.9  

1.9  

4.6  

2.4  

1.4  

0.9  

7

7

8

8

2.0 0.1  

2.5 0.1  

2.2 0.1  

2.5 0.1  

4.5 +0.5/-0  

5.0 +0.5/-0  

4.5 +0.5/-0  

5.0 +0.5/-0  

162  

175  

278  

765  

4

4

5

5

RB6132-16-0M8  

RB6132-25-0M5  

RB6132-36-0M4  

RB6132-50-0M2  

60  

80  

16  

25  

36  

50  

26.5  

41  

0.80  

0.47  

0.42  

0.18  

6.9  

3.6  

4.2  

1.5  

4.7  

2.4  

1.5  

0.8  

9

9

2.0 0.1  

2.5 0.1  

2.2 0.1  

2.5 0.1  

4.5 +0.5/-0  

5.0 +0.5/-0  

4.5 +0.5/-0  

5.0 +0.5/-0  

165  

180  

280  

168  

6

6

6

6

RB6532-16-0M8  

RB6532-25-0M5  

RB6532-36-0M4  

RB6532-50-0M2  

60  

10  

10  

81  

16  

25  

36  

50  

27  

41  

58  

82  

1.30  

0.94  

0.83  

0.33  

9.1  

6.7  

7.3  

3.1  

5.7  

3.0  

2.3  

1.2  

9

11  

12  

12  

2.0 0.1  

2.65 0.1  

2.2 0.1  

2.5 0.1  

4.5 +0.5/-0  

5.0 +0.5/-0  

4.5 +0.5/-0  

5.0 +0.5/-0  

167  

282  

478  

442  

7

7

7

7

RB8532-16-1M3  

RB8532-25-0M9  

RB8532-36-0M8  

RB8532-50-0M3  

Test conditions:  

Measuring frequency: 1 kHz; 500 μA >0.16 mH <1.6 mH; 50 μA >1.6 mH <160 mH  

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.  

** Due to manufacturing processes and to cover current ampacity of chokes with high current rating, the number of parallel wires does  

vary between different sizes.  

Typical Choke Attenuation/Resonance Frequency Characteristics  

Per CISPR 17; 50 Ω/50 Ω asym  

RB 6122, RB 6522  

RB 6132, RB 6532  

RB 8522  

RB 8532  

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Common Mode Chokes  

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Product selector  

Thermal Derating  

If higher ambient temperatures than the specified  

apply, the nominal current needs to be reduced  

according to the graph below.  

Examples:  

RB 8532-16-1M3: Vertical 3-wire high inductance choke with PCB pins, for 16 A, with 1.3 mH  

RB 6122-50-0M3: Horizontal 2-wire low inductance choke with PCB pins, for 50 A, with 0.3 mH  

Mechanical Data: 1-phase / DC Chokes  

All dimensions in mm; 1 inch = 25.4 mm  

Tolerances according: ISO 2768-m/EN 22768-m  

Windings of chokes are within max. component dimensions. Windings are illustrated simplified.  

Size 1 (RB 6122)  

Size 2 (RB 6122)  

L

L

D

D

4

Common Mode Chokes  

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Size 3 (RB 6522)  

Size 4 (RB 6522/RB 8522)*  

L

D

L

D

Size 5 (RB 8522)  

Size 6 (RB 8522)*  

L

L

D

D

* These choke sizes do have two parallel wires. Due to manufacturing processes and to cover current ampacity of chokes with high current rating, the number  

of parallel wires does vary between different sizes.  

5

Common Mode Chokes  

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Mechanical Data: 3-phase Chokes  

All dimensions in mm; 1 inch = 25.4 mm  

Tolerances according: ISO 2768-m/EN 22768-m  

Windings of chokes are within max. component dimensions. Windings are illustrated simplified.  

Size 7 (RB 6132)  

Size 8 (RB 6132)*  

L

L

D

D

Size 9 (RB 6532/RB 8532)  

Size 10 (RB 6532)*  

L

L

D

D

6

Common Mode Chokes  

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Size 11 (RB 8532)  

Size 12 (RB 8532)*  

L

L

D

D

* These choke sizes do have two parallel wires. Due to manufacturing processes and to cover current ampacity of chokes with high current rating, the number  

of parallel wires does vary between different sizes.  

Available Supporting Material  

Accessories  

For all RB choke types an evaluationboard is available (not including capacitors and RB chokes)  

All boards feature voltage ratings according to the chokes usable on the board – up to 600VAC/  

1000VDC.  

The capacitors used need to be selected according to application and safety level.  

Recommended are Y1 and X1 capacitors with a voltage rating of at least 600VAC and 1000VDC.  

The pitch for Y-capacitors (between phase and PE) is 15 or 22.5 mm. With a max outer dimnesion of 12  

x 26 mm (w x l).  

The pitch for X-capacitors (between phases) is 22.5, 27.5 or 37.5 mm. With a max outer dimnesion of 28  

x 40 mm (w x l).  

For discharge reason a resistor can be fitted in parallel to the X-capacitors.  

All connections to the boards are done with M6 screw terminals (recommended torque is 2.5 Nm.  

Nom. Current  

of RB Choke  

Eval. Board  

Order  

Name  

Order  

Code  

Selection table  

RB Choke Type  

[Range A]  

16 – 50  

16 – 50  

16 – 50  

16 – 25  

36 – 50  

16 – 50  

16 – 50  

No  

1

[RB XXXX]  

RB 6122  

RB 6522  

RB 8522  

RB 6132  

RB 6132  

RB 6532  

RB 8532  

EVA-BOARD FOR RB6122 SERIES  

EVA-BOARD FOR RB6522 SERIES  

EVA-BOARD FOR RB8522 SERIES  

EVA-BOARD FOR RB6132-16/25  

EVA-BOARD FOR RB6132-36/50  

EVA-BOARD FOR RB6532 SERIES  

EVA-BOARD FOR RB8532 SERIES  

813249  

813252  

813254  

813250  

813251  

813253  

813255  

2

3

For further drawings and CAD data of the different  

boards please contact your local Schaffner  

subsidary.  

4

5

6

7

Application Note  

This application note addresses experienced engineers, who are familiar with the basics of EMC, and intends to provide additional information about RB  

choke series and Design support for PCB integrated EMC/EMI filters.  

7

Common Mode Chokes  

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