DATA SHEET
Saturating Chokes RI series
Saturating Chokes
Rated currents from 1.5 to 25 A
Approvals & Compliances
Up to 500 VAC operating voltage
DC to 1 kHz frequency
Single or dual-choke configurations
Performance indicators
RI saturating type chokes change impedance at
the moment of switching, and can be used to
attenuate differential-mode noise or symmetrical
interference as generated in fast switching high
current applications. These chokes are typically
used in conjunction with suppression capacitors.
For optimum attenuation chokes must be
connected as close as possible to the
semiconductor switching device.
Features and Benefits
Excellent thermal behavior
Through hole or wire connections
Single or dual-choke configurations
Up to 25 A single configuration
Technical Specifications
Custom-specific versions are available on request
Typical Applications
Maximum continuous operating voltage
500 VAC @ 40°C
Rated currents
1.5 to 25 A
Suppressing high interference levels generated
by fast switching circuits
and/or winding-to-inserts
2500 V, 50 Hz, 2 sec, factory test
DC voltage smoothing
Surge current @ 10 msec
20 x IN @ 25°C
EMC/EMI filters
Temperature range (operation and storage)
-25°C to +110°C (25/110/21)
Phase angle control circuits
Flammability corresponding to
UL 94 V-0
Power supplies
High potential test voltage
Chargers
Typical electrical schematic
2
Saturating Chokes
Schaffner Group
DATA SHEET
10. May
2023
Choke Selection Table
Choke
Nominal current
Resistance
Choke
Input/Output
@ 40°C
R
configuration
connections
[A]
[mΩ/path]
[Qty]
6
42
2
02
170
RI 401 PC
1.5
620
1
02
15
RI 403 PC
3
105
1
02
30
RI 406 PC
6
53
1
02
55
RI 410 PC
10
28
1
02
RI 415
15
8
1
07
205
RI 425
25
4
1
07
325
RI 111 PC
Test conditions:
Resistance tolerance: ±15% @ 25°C
Electrical characteristics @ 25°C: ±2°C
Typical Saturation Characteristics
Inductance (typical value in %) vs. nominal current in %
RI series
Weight
[g]
95
3
Saturating Chokes
Schaffner Group
DATA SHEET
10. May
2023
Mechanical Data
RI 111
RI 401, RI 403, RI 406
RI 410
RI 415, RI 425
1
3
2
4
1, 2
3, 4
Dimensions
RI 111
RI 401
RI 403
RI 406
RI 410
RI 415
RI 425
A
49
19.5
23.3
28.5
33
35
48
B
35
19.5
23.3
28.5
33
49
48
C
34
15
18
21.5
28
34
43
D
15
4 ±0.5
6 ±0.5
4.5 ±0.5
6 ±0.5
200
200
E
Ø1.15
0.6 x 0.88
Ø0.9
0.6 x 0.88
0.75 x 1.1
F
1
10 ±2
10 ±2
20
12.5
15
20
17.5
22
39
H
40
7.5
10
10
15
36
35
M4
M4
M4
±0.3
±0.1
G
I
1
Tolerances
J
6
6
6
+0/-0.5
L
21
30
30
±0.25
All dimensions in mm; 1 inch = 25.4 mm
Tolerances according: ISO 2768-m/EN 22768-m
Please visit www.schaffner.com to find more details on filter connections.
4
Saturating Chokes
Schaffner Group
DATA SHEET
10. May
2023
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© 2023 Schaffner Group
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understood.
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subsidiaries
assume
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liability
whatsoever for any errors or inaccuracies
of this document and the consequences
thereof. Published specifica-tionsw are
subject to change without notice. Product
suitability for any area of application must
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by
the
customer. In all cases, products must
never be operated outside their published
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