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HT Series

High Performance RFI Power Line Filters for Medical Equipment

UL Recognized
CSA Certified
VDE Approved

 

Catalog Data Sheet

HT Series

The HT series power line filters provide superior commonmode and premium differential-mode attenuation to RFI noise on 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 leakage current.

They are a size- and 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). HT series filters can meet the following Conducted Emissions standards:

  • European Normalized Standards based on EN55022, Level A (in many cases, Level B also)
  • FCC Part 15, Computing Devices, Class B
  • FCC Part 18, ISM Equipment, Industrial and Consumer.

See Appendix C for more information on UL2601 health care applications

Note: When using the models with an IEC connector, remember that the leakage current of the companion line cord, GA400, is more significant than that of the filter - which may disqualify this line cord from use in patient care applications.

Electrical Schematic

3 & 6 Amp Models

10 Amp Models

15 Amp Models

Resistor location for reference only

Specifications

Maximum leakage current, each line to ground:
  @ 120 VAC 60 Hz 2 µA
  @ 250 VAC 50 Hz 5 µA
     
Hipot rating (one minute):
  line to ground 1500 VAC
  line to line 1450 VDC
     
Operating Frequency: 50 / 60 Hz
     
Rated voltage (max.): 250 VAC
     
Rated Current: 3A to 15A *
  * 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 .08 .15 .5 1 2 5 10 20 30
3A 22 32 36 - 49 46 40 30 22 12 12 12
6A 16 23 32 41 46 41 33 26 15 9 6 2
10A 9 15 24 30 36 42 34 22 12 12 5 2
15A 4 9 18 22 27 41 34 22 12 12 5 2
 
Line to line in 50 ohm circuit
Current Rating Frequency - MHz
.01 .02 .05 .08 .15 .5 1 2 5 10 20 30
3A 3 1 30 - 61 70 65 65 48 40 32 32
6A 4 1 14 45 51 70 70 65 55 47 37 37
10A 7 8 17 32 52 70 70 70 65 55 40 35
15A 12 16 15 10 51 70 70 70 70 70 65 55

Case Styles

HT1 (3, 6 and 10 Amps)

 

HT1 (15 Amp)

Typical Dimensions
Terminals (5) .250 Holes (4) .07 Dia.
6.35 1.8
6 & 10 Amp Mounting Holes (2)
 .188 Dia 15 Amp Mounting
Holes (4) 		.203 x .156 Dia.
4.78 5.16 x 3.96

HT3

 

Typical Dimensions
Wire Leads
3 & 6 Amp
(min.) : 		6.0 Wire Leads
10 Amp
(min.) : 		4.0
152.4 101.6
Mounting Holes (2)
 .188 Dia Wire Gauge: 18AWG
4.78

HT6

Typical Dimensions
Terminals (5): No. 8-32 Torque: 18 ± 2 in. lb.
    Mounting Holes (4) .203 x .156 Dia.
  5.16 x 3.96

HT7 & HT7M (with metric insert)

Typical Dimensions
Tapped Inserts (2): HT7 No. 6-32 x 1/4
  HT7M No. M-3 x 5

 

 

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
3EHT1, 6EHT1 3.56 2.15 1.81 2.938 3.38
90.4 54.6 46.0 74.63 85.9
3EHT3, 6EHT3 2.55 2.15 1.81 2.938 3.38
64.8 54.6 46.0 74.63 85.9
3EHT7, 3EHT7M,
6EHT7, 6EHT7M 		3.52 2.25 1.78 1.575 0.63 †
89.4 57.2 45.2 40.01 16.0
10EHT1 4.69 2.27 1.8 4.063 4.47
119.1 57.7 45.7 103.2 113.5
10EHT3 3.69 2.27 1.8 4.063 4.47
93.7 57.7 45.7 103.2 113.5
15EHT1 5.45 3.12 2.18 3.5 3.96
138.4 79.2 55.4 88.9 100.6
15EHT6 5.95 3.12 2.18 3.5 3.96
151.1 79.2 55.4 88.9 100.6
† ± .02 [.5]

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.

3EHT1 10EHT1
3EHT3 10EHT3
3EHT7 15EHT1
3EHT7M 15EHT6
6EHT1  
6EHT3  
6EHT7  
6EHT7M  
   
Line Cord GA400

 
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.