Libertyville, IL (847) 680-7400
Q
64
Q Series
Highest Performance RFI Filters
for Switching Power Supply
Emissions down to 10kHz
UL Recognized
CSA Certified
VDE Approved
Q Series
This series of RFI power line filters has been developed
specifically for switching power supplies and is designed
to be all the power line filtering needed to control
conducted emissions all the way down to 10kHz. High
attenuation is provided for both common mode and
differential mode interference throughout the frequency
range with no degradation of performance due to the
large peak currents drawn by switching power supplies.
These filters are an ideal choice for applications that must
meet emission limits below 150kHz, as well as the
mandated limits above 150kHz. In most cases they will
bring such equipment into compliance with the B-level
limits of CISPR 22. They are also well suited for bringing
ISM equipment (such as ultrasonic cleaners) into
compliance with the limits of FCC Part 18, from 10kHz to
30MHz.
The EQ models meet the very low leakage current
requirements VDE portable equipment, and (120 Volt)
UL544 nonpatient medical equipment. The VQ models
offer higher common mode performance at the expense
of higher leakage current, but still meet the leakage
current limits of UL, CSA, and VDE nonportable
equipment.
Electrical Schematics
3EQ & 3VQ Models
Specifications
Maximum leakage current,
each line-to-ground
@ 120 VAC 60 Hz (3A,20A):
.73 mA
.22 mA
@ 120 VAC 60 Hz (6A):
—
.29 mA
@ 250 VAC 50 Hz (3A,20A): 1.27 mA
.38 mA
@ 250 VAC 50 Hz (6A):
—
.51 mA
Hipot rating (one minute):
line-to-ground
2250 VDC
line-to-line
1450 VDC
Operating frequency:
50/60 Hz
Rated voltage:
120/250 VAC
Rated current:
@120 VAC
@ 250 VAC
3VQ/3EQ
3A
2A
6EQ
6A
5A
20EQ1/20VQ1
20A
Minimum insertion loss in dB:
Line-to-ground in 50 ohm circuit
Current
Frequency–MHz
Rating
.01
.02 .05 .15
.5
1
5
10
30
EQ Models
3A
22
27
36
47
43
45
6A
26
31
20
68
72
65
55
45
20A
6
10
8
39
60
65
55
VQ Models
3A
22
27
37
50
55
50
55
20A
6
3
17
52
65
70
50
Line-to-line in 50 ohm circuit
Current
Frequency–MHz
Rating
.01
.02 .05 .15
.5
1
5
10
30
EQ Models
3A
1
17
42
65
75
65
60
6A
6
10
43
70
75
65
55
20A
15
20
46
65
70
65
60
VQ Models
3A
1
17
42
65
75
60
65
20A
15
20
46
65
70
65
60
6EQ & 20EQ Models
Q1
Q3
Resistor location for reference only.
Q8-6A
Q8-3A
Recommended Panel Cutout
VQ Models
EQ Models
Panel cutout (Back mount)
.005
0.13
Tolerance: ±