
Low Capacitance Modular RJ Jacks
178 Catalog 1654001 Dimensions are in inches and Dimensions are shown for USA Cust. Svc.: 1-800-468-2023 www.corcom.com
Revised 05-07 millimeters unless otherwise reference purposes only. CORCOM Prods: 1-847-680-7400 www.tycoelectronics.com
specified. Values in italics Specifications subject Germany: 49-89-6089-0
are metric equivalents. to change.
CORCOM Product Guide
LCT Series
Capacitance components enhance the filtering
performance but may alter the signal as it passes through
the RJ Jack. A low capacitance model allows additional
filter performance without significant effect on the signal
itself. The new LCT models provide improved performance
over L models without impact on the signal. These parts
are particularly suited for ethernet applications.
These models are available in shielded models only, with
either panel or board ground.
Specifications
Contacts:
Material: Phosphor Bronze
Plating: 50 microinches gold
Barrier underplating: 100 microinches nickel
Resistance:
Initial: 20 milliohms max.
After durability testing: 30 milliohms max.
(500 mating cycles)
Capacitors:
Type: Monolithic ceramic chip
Standard value: 82 pF
Standard tolerance: ±20%
Ferrites:
Type: High resistivity, nickel zinc ceramic
Sleeves: Single-aperture cylinders
Block: Multi-aperture rectangular prism
Shield Material: Tin-plated copper alloy
Housing Material: Glass-filled polyester (UL94V-0)
Dielectric Withstanding Voltage:
Line-to-line and line-to-ground 1000 VAC for
60 seconds
Printed Circuit Board Retention:
Before soldering: 1lb. minimum
After soldering: 20 lb. minimum
Model dimensions and PC board layout on pages 170 to 174.
LCT Series
Typical insertion loss in dB:
Line-to-ground (stop band) in a 50 ohm circuit
Frequency-MHz
40 100 200 250 300 500 1000
Ferrite 812 27 50 38 25 20
Sleeves
Ferrite 10 18 22 55 40 28 24
Blocks
Typical insertion loss in dB:
Line-to-line (pass band) in a 50 ohm circuit
Frequency-MHz
2 5 10 30 50 70 100
Ferrite 1.2 1.9 4 5 7 10
Sleeves
Ferrite 1 2 3 5 8 10 13
Blocks
Part Numbers
RJ11-6LCT1-S RJ45-8LCT1-S
RJ11-6LCT1-B RJ45-8LCT1-B
RJ11-6LCT2-S RJ45-8LCT2-S
RJ11-6LCT2-B RJ45-8LCT2-B
UL Recognized
CSA Certified Shield 2
RJ11 Shield 1
RJ11 Shield 2
RJ45 Shield 1
RJ45
Typical insertion loss in dB:
Line-to-ground (stop band) in a 50 ohm circuit
Frequency-MHz
40 100 200 250 300 500 1000
Ferrite 812 27 50 38 25 20
Sleeves
Ferrite 10 18 22 55 40 28 24
Blocks