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Q Series

Highest Performance RFI Filters for Switching Power Supply Emissions down to 10 kHz

UL Recognized
CSA Certified
VDE Approved

Catalog Data Sheet

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 non-patient 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 non-portable equipment.

Electrical Schematic

3EQ & 3VQ Models

6EQ & 20EQ Models

Resistor location for reference only

Specifications

Maximum leakage current, each line to ground:
    VQ Models EQ Models
  @ 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 (max.): 250 VAC
     
Rated Current: 3A to 20A *
  * refer to part number for rating
Minimum insertion loss in dB:
Line to ground in 50 ohm circuit
Current Rating Frequency - MHz
.01 .02 .05 .15 .5 1 5 10 30
3VQ 22 27 37 50 55 55 55 50 55
3EQ 22 27 36 47 47 43 45 45 45
6EQ 26 31 20 68 72 72 65 65 65
20EQ1 6 10 8 39 60 65 65 65 55
20VQ1 6 3 17 52 65 70 70 70 70
Line to line in 50 ohm circuit
Current Rating Frequency - MHz
.01 .02 .05 .15 .5 1 5 10 30
3VQ 1 17 42 65 75 75 60 65 65
3EQ 1 17 42 65 75 75 65 65 60
6EQ 6 10 43 70 75 75 65 55 55
20EQ1 15 20 20 46 65 70 65 60 60
20VQ1 15 20 20 46 65 70 65 60 60
 

Case Styles

Q1

Typical Dimensions
Terminals (5) .250 Holes (4) .07 Dia.
6.35 1.8
Slot .07 x .16 Mounting Holes (2) .188 Dia
1.8 x 4.1 4.78

Q3

Typical Dimensions
Wire Leads (min.) : 4.0 Wire Gauge: 18AWG
101.6
Mounting Holes (2)
 .188 Dia    
4.78

3VQ/EQ8 & 3VQ/EQ8M (with metric insert)

Typical Dimensions
Wire Leads (min.) : 4.0 Wire Gauge: 18AWG
101.6

6VQ/EQ8 & 6VQ/EQ8M (with metric insert)

 

 

 

Recommended Panel Cutouts

tolerance ± .005 [0.13]

Back mount only

 

Case Dimensions

Part No. A B C D E
(max.) (max.) (max.) ± .015 (max.)
± .38
3VQ1, 3EQ1 3.85 2.07 1.78 2.938 3.34
97.8 52.6 45.2 74.63 84.8
3VQ3, 3EQ3 2.56 2.07 1.78 2.938 3.34
65.0 52.6 45.2 74.63 84.8
3VQ8, 3VQ8M,
3EQ8, 3EQ8M 		3.07 2.25 1.78 1.575 0.63 †
78.0 57.2 45.2 40.01 16.0
6EQ1 4.98 2.27 1.80 4.063 4.47
126.5 57.7 45.7 103.2 113.5

6EQ3

 3.69 2.27 1.80 4.063 4.47
93.7 57.7 45.7 103.2 113.5
6EQ8, 6EQ8M 5.47 2.07 1.78 1.575 2.70
138.9 52.6 45.2 40.01 68.0
20EQ1, 20VQ1 6.66 2.07 2.28 5.625 6.03 †
168.1 52.6 57.9 142.9 153.2
† ± .02 [.05]

Ordering and Design Information

Click on any part number for 3D CAD models, customer drawings, distributor stock status and eCommerce Links. For more information refer to the Corcom Part Numbering System reference.

3EQ1 3VQ1
3EQ3 3VQ3
3EQ8 3VQ8
3EQ8M 3VQ8M
6EQ1 20EQ1
6EQ3 20VQ1
6QE8  
6EQ8M  

USA Customer Service: 1-800-468-2023
Corcom Products Direct: 1-847-680-7400
Germany: 49-89-6089-0
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.