DATASHEET
Common-mode Chokes RT series
Current-compensated Chokes
Rated currents from 6 to 20 A
Up to 600 VAC and VDC
2- and 3-wire configurations
Horizontal and vertical PCB mounting types
Ruggedized saturation and thermal behavior
Open construction for forced and convection
cooling
Straightforward pin-out for easy PCB design
Approvals
Performance indicators
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.
Features and benefits
Cost-effective PCB designs for up to 32 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
Maximum continuous operating voltage
Operating frequency
Rated currents
High potential test voltage winding-to-
winding @ 25°C
Temperature range (operation and storage)
Flammability corresponding to
Cooling
MTBF @ 40°C/230 V (Mil-HB-217F)
600 VAC (3-line) and 300 VAC/425 VDC (2-line)
dc to 400 Hz
6 to 20 A @ 60°C max. convection cooling
2500 VAC, 60 sec, guaranteed, 2 sec factory test
-40°C to +100°C (40/100/56)
UL 94 V-0
convection/forced cooling
>5,000,000 hours
Technical specifications
* See RB 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
Converters
Typical electrical schematic **
** 2-line chokes (2x Ln), 3-line chokes (3x Ln)
4
EMC/EMI Products
Schaffner Group
Datasheets
11 Oct 2018
Mechanical data: Horizontal chokes (2-line and 3-line)
All dimensions in mm
Horizontal 2-line chokes (Size 1-3)
Horizontal 3-line chokes (Size 7-9)
Dimensions
A
(±0.5)
Size1 (RT 8122-6-10M0, RT 8122-8-8M0, RT 8122-10-6M0)
SIze2 (RT 8122-12-5M0, RT 8122-16-4M0)
Size3 (RT 8122-20-3M0)
21
26
32
ØA
(±0.5)
Size 7 (RT 8132-6-6M0, RT 8132-8-4M8)
Size 8 (RT 8132-10-4M0,RT 8132-12-3M6)
Size 9 (RT 8132-16-3M0, RT 8132-20-2M5)
38
44
49
-
-
-
46
51
57
34
33
37
B
(±0.5)
25
30
36
45
51
57
ØD (max)
34
33
37
H (max)
ØD (max)
H (max)
ØD1
(±0.5)
42
48
54
ØD1
(±0.5)
43
48
54
1.4
1.7
2.2
2.5
2.5
2.5
36
42
47
1.5
1.9
2.1
ØD2
2.5
2.5
2.5
36
40
43
ØD2
ØD3
Ø
E
Pin material: Copper (base), Sn (final plating typical thickness 0.15 mm; composition: Sn-1.2AG-4Cu or SN-3Cu-0.25Ni)
Please visit www.schaffner.com to find more details on filter connections.
5
EMC/EMI Products
Schaffner Group
Datasheets
11 Oct 2018
Mechanical data: Vertical chokes (2-line and 3-line)
All dimensions in mm
Vertical 2-line chokes (Size 4-6)
Vertical 3-line chokes (Size 10-12)
Dimensions
A
(±0.5)
Size 4 (RT 8522-6-10M0, RT 8522-8-8M0, RT
8522-10-6M0)
SIze 5 (RT 8522-12-5M0, RT 8522-16-4M0)
Size 6 (RT 8522-20-3M0)
16
16
16
A1
B
L
W
H
L1
L2
(±0.5)
26
33
35
-
-
-
L3
W1
W2
ØD2 ØD3 X
Y
(±0.5) (±0.5)
-
-
-
20
22
22
(max) (max)
43
50
56
32
32
32
(max) (±0.5)
44
52
57
32
39
42
(±0.5) (±0.5)
27.8
27
31.2
22
23
25
1.5
1.9
2.1
2.5
2.5
2.5
3
3
3.5
2.9
2
3.1
Size 10 (RT 8532-6-6M0, RT 8532-8-4M8)
Size 11 (RT 8532-10-4M0,RT 8532-12-3M6)
Size 12 (RT 8532-16-3M0, RT 8532-20-2M5)
36
38
46
18
19
23
24
24
29
44
49
56
32
34
37
47
53
60
41
46
53
27
28.5
34.5
9
9.5
11.5
29
31
34
-
-
-
1.4
1.7
2.2
1.4
1.7
2.2
2.5
4
3.5
2.5
3.5
2.5
Pin material: Copper (base), Sn (final plating typical thickness 0.15 mm; composition: Sn-1.2AG-4Cu or SN-3Cu-0.25Ni)
Please visit www.schaffner.com to find more details on filter connections.
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