LTC Telephone Line Digital Filters

LTC Telephone Line Digital Filters

ETS-Lindgren’s LTC Series of filters are ideal for applications including communication lines entering or leaving shielded rooms, computer rooms, communication terminal rooms, and Sensitive Compartmental Information Facilities (SCIF). The LTC-X640 series filters have multiple circuits to...

Description

ETS-Lindgren’s LTC Series of filters are ideal for applications including communication lines entering or leaving shielded rooms, computer rooms, communication terminal rooms, and Sensitive Compartmental Information Facilities (SCIF).

The LTC-X640 series filters have multiple circuits to handle 2, 4, 6, 8, 10 or 12 wires, and are designed for stand-alone, individual mounting. The LTC-X640 series filters may be supplied with an optional threaded conduit pipe for penetration of a shielded enclosure.

Model ​Passband Impedance Passband Loss Stopband Insertion Loss ​Maximum Current Maximum Voltage
​LTC-X640-C10K ​600 (L-L), 300 (L-G) ​0.5 dB Maximum
0 to 40 kHz
​100 dB Minimum
@ 330 KHz to 18 GHz
0.5 ​125
​LTC-X640-D56K ​600 (L-L), 300 (L-G) ​1.0 dB Maximum
0 to 140 kHz
​100 dB Minimum
@ 1 MHz to 18 GHz
​0.5 ​125
​LTC-X640-E128K ​150 (L-L), 75 (L-G) ​1.0 dB Maximum
0 to 300 kHz
​100 dB Minimum
@ 1.5 MHz to 18 GHz
​0.5 ​125

 

Model ​Number of Lines ​Width
​LTC-2640-C10K
​2
​7.62 cm (3.00 in)
​LTC-4640-C10K
​4
​​5.24 cm (6.00 in)
​LTC-6640-C10K
​6
​30.48 cm (12.00 in)
​LTC-8640-C10K
​8
​​30.48 cm (12.00 in)
​LTC-10640-C10K
​10
​45.72 cm (18.00 in)
​LTC-12640-C10K
​12
​​45.72 cm (18.00 in)
​LTC-2640-D56K
​2
​7.62 cm (3.00 in)
​LTC-4640-D56K
​4
​5.24 cm (6.00 in)
​LTC-6640-D56K
​6
​30.48 cm (12.00 in)
​LTC-8640-D56K
​8
​30.48 cm (12.00 in)
​LTC-10640-D56K
​10
​45.72 cm (18.00 in)
​LTC-12640-D56K
​12
​45.72 cm (18.00 in)
LTC-2640-E128K
​2
​.62 cm (3.00 in)
​LTC-4640-E128K
​4
​15.24 cm (6.00 in)
​LTC-6640-E128K
​6
​30.48 cm (12.00 in)
​LTC-8640-E128K
​8
​30.48 cm (12.00 in)
​LTC-10640-E128K
​10
​45.72 cm (18.00 in)
​LTC-12640-E128K
​12
​45.72 cm (18.00 in)

NOTE: For Installation on shield, filters can be ordered with penetration kit. Add “/PEN” to model numbers.