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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

Performance indicators

Technical specifications

Maximum continuous operating voltage

600 VAC (3-line) and 300 VAC/425 VDC (2-line)

Operating frequency

dc to 400 Hz

Rated currents

6 to 20 A @ 60°C max. convection cooling

High potential test voltage winding-to-

winding @ 25°C

2500 VAC, 60 sec, guaranteed, 2 sec factory test

Temperature range (operation and storage)

-40°C to +100°C (40/100/56)

Flammability corresponding to

UL 94 V-0

Cooling

convection/forced cooling

MTBF @ 40°C/230 V (Mil-HB-217F)

>5,000,000 hours

Approvals

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

* 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

Converters

Typical electrical schematic **

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

L3, 3x Ln)

Summary of content (6 pages)

PAGE 1
DATASHEET Common-mode Chokes RT series Current-compensated Chokes Rated currents from 6 to 20 A Approvals 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 Performance indicators RT common-mode chokes are mainly used to filter EMI noise on AC power lines up to 600 VAC.
PAGE 2
Schaffner Group EMC/EMI Products Datasheets 2017 RT Series Selection table convection *forced cooling Inductance **typ. Inductance Resistance cooling nominal 3 m/s nominal Ln @ 25˚C Ls @ 25˚C R @ 25˚C Choke ***Ø Pin current @ 60˚C current @ 60˚C 100kHz 100kHz [A] [A] [mH/path] [μH/path] RT 8122-6-10M0 6 9.5 10 RT 8122-8-8M0 8 12.5 RT 8122-10-6M0 10 RT 8122-12-5M0 RT 8122-16-4M0 Weight [mΩ/path] [size] ØP [mm] [g] 30 33 1 1.1 80 8 24.8 21 1 1.
PAGE 3
Schaffner Group EMC/EMI Products Typical choke attenuation/resonance frequency characteristics Per CISPR 17; 50 Ω/50 Ω asym RT 8122 RT 8132 RT 8522 RT 8532 Datasheets 2017
PAGE 4
Schaffner Group EMC/EMI Products Datasheets 2017 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 B (±0.5) (±0.5) Size1 (RT 8122-6-10M0, RT 8122-8-8M0, RT 8122-10-6M0) 21 25 45 34 42 1.5 SIze2 (RT 8122-12-5M0, RT 8122-16-4M0) 26 30 51 33 48 1.9 32 36 Size3 (RT 8122-20-3M0) ØA ØD (max) H (max) ØD1 ØD2 (±0.5) 57 37 54 2.1 ØD (max) H (max) ØD1 ØD2 (±0.
PAGE 5
Schaffner Group EMC/EMI Products Datasheets 2017 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 A1 B L W H L1 L2 (±0.5) (±0.5) (±0.5) (max) (max) (max) (±0.5) (±0.5) Size 4 (RT 8522-6-10M0, RT 8522-8-8M0, RT 8522-10-6M0) 16 - 20 43 32 44 32 26 - 27.
PAGE 6
Schaffner Group EMC/EMI Products Datasheets Headquarters, global innovation and development Sales and application centers Switzerland Schaffner Group Nordstrasse 11 4542 Luterbach T +41 32 681 66 26 info@schaffner.com http://www.schaffner.com China Schaffner EMC Ltd. Shanghai T20-3 C, No 565 Chuangye Road, Pudong district 201201 Shanghai T +86 21 3813 9500 cschina@schaffner.com http://www.schaffner.com.