CORCOM Product Guide
Highest Performance RFI Filters for Medical Equipment
HQ Series
HQ3
6EHQ8
UL Recognized
CSA Certified
VDE Approved
3EHQ8
HQ1
HQ Series
The HQ series power line filters provide the highest
available common-mode and differential-mode attenuation
to RFI noise in the frequency range from 10kHz to 30MHz,
for IEC 60601 and UL2601 patient-connected equipment,
as well as all other electronic equipment that cannot
tolerate any leakage current.
They are a size- and more cost-effective solution to the
problem of meeting both medical leakage current limits and
conducted emissions limits in equipment with high noise
sources (such as switching power supplies). HQ series
filters can help meet the following Conducted Emissions
standards:
• European Normalized Standards based on EN55022,
Level B
• FCC Part 15, Computing Devices, Class B.
• FCC Part 18, ISM Equipment, Industrial and
Consumer.
For more information on UL2601, see Appendix C.
Specifications
Maximum leakage current,each line-to-ground
@ 120 VAC 60 Hz:
@ 250 VAC 50 Hz:
Hipot rating (one minute):
line-to-ground
line-to-line
Operating frequency:
Rated voltage (max.):
Rated current:
3EHQ
6EHQ
Maximum rated current peaks:
3EHQ
6EHQ
Minimum insertion loss in dB:
Line-to-ground in 50 ohm circuit
Current
Frequency–MHz
Rating .01 .02 .05 .15 .5 1 2 5
3A
6A
2µA
5µA
2250 VDC
1450 VDC
50/60 Hz
250 VAC
3A
6A
10A
18A
7 10 20 30
Electrical Schematics
3 Amp Models
LINE
LOAD
19 24 32 44 44 40 38 28 25 22 13 10
24 29 39 42 28 35 36 30 30 24 16 15
Line-to-line in 50 ohm circuit
Current
Frequency–MHz
Rating .01 .02 .05 .15 .5 1 2 5
3A
6A
1
6
7 10 20 30
18 43 68 75 75 72 70 66 65 60 60
10 43 70 75 75 75 65 50 55 50 40
6 Amp Models
LINE
LOAD
Line Cord
Line Cord No. GA400:
7
1/2
foot, 3-conductor line cord to mate with Q8 models.
Resistor location for reference only.
68
Catalog 1654001
Revised 05-07
Dimensions are in inches and
millimeters unless otherwise
specified. Values in italics
are metric equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA Cust. Svc.: 1-800-468-2023
CORCOM Prods: 1-847-680-7400
Germany:
49-89-6089-0
www.corcom.com
www.tycoelectronics.com
CORCOM Product Guide
Highest Performance RFI Filters for Medical Equipment
(Continued)
HQ Series
RFI Power Line Filters
Case Styles
HQ1
3 Amp Models
6EHQ8 & 6EHQ8M
(with metric insert)
Tapped insert:
No. 6-32 x 1/4 (3)-Q8
No. M-3 x .5 (3)-Q8M
C
B
0.63 Ref
16.0
D
E
A
C
6 Amp Models
E
A
D
Grn/Yel
B
Blue
Brown
C
Typical dimensions:
Wire leads: 6.0 [152.4] Min.
B
Typical dimensions:
Terminals: .250 [6.35] (5) Holes: .07 [1.8] Dia.(4) Slot: .07 x .16 [1.8
x 4.1]
Mounting holes: .188 [4.78] Dia. (2)
Case Dimensions
Part No.
3EHQ1
A
(max)
3.85
97.8
2.56
65.0
3.07
78.0
4.98
126.5
3.69
93.7
5.47
138.9
B
(max)
2.07
52.6
2.07
52.6
2.25
57.2
2.27
57.7
2.27
57.7
2.07
52.6
C
(max)
1.78
45.2
1.78
45.2
1.78
45.2
1.8
45.7
1.8
45.7
1.78
45.2
D
± .015
± .38
HQ3
3 Amp Models
Blue
Blue
Blue
Grn/Yel
Grn/Yel
Brown
Brown
Brown
E
(max)
3.34
84.8
3.34
84.8
0.63
†
16.0
4.47
113.5
4.47
113.5
2.7
†
68.6
†
±.02 [±.5]
B
3EHQ3
C
A
D
E
6 Amp Models
Blue
3EHQ8,
3EHQ8M
6EHQ1
B
Grn/Yel
Brown
6EHQ3
6EHQ8,
6EHQ8M
C
Typical dimensions:
Wire leads: 4.0 [101.6] Min.
2.938
74.63
2.938
74.63
1.575
40.01
4.063
103.2
4.063
103.2
1.575
40.01
Mounting holes: .188 [4.78] Dia. (2)
3EHQ8 & 3EHQ8M
(with metric insert)
Tapped insert:
Brown
Grn/Yel
Blue
No. 6-32 x 1/4 (2)-Q8
No. M-3 x .5 (2)-Q8M
Part Numbers
3EHQ1
3EHQ3
3EHQ8
3EHQ8M
Line Cord No.
6EHQ1
6EHQ3
6EHQ8
6EHQ8M
GA400
D B
Recommended Panel Cutouts
A
C
E
.235 R
5.96
.157 Dia. (2)
3.98
.910
23.11
1.295
32.89
1.575
40.01
Panel Cutout (back mount)
Tolerance ±.005 [0.13]
Typical dimensions:
Wire leads: 6.0 [152.4] Min.
69
Catalog 1654001
Revised 05-07
Dimensions are in inches and
millimeters unless otherwise
specified. Values in italics
are metric equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA Cust. Svc.: 1-800-468-2023
CORCOM Prods: 1-847-680-7400
Germany:
49-89-6089-0
www.corcom.com
www.tycoelectronics.com
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