LTC Specialty Filters
ETS-Lindgren’s Specialty Filters are ideal for applications including communication lines entering or leaving shielded rooms, computer rooms, communication terminal rooms, and Sensitive Compartmental Information Facilities (SCIF). These filters include applications for cable TV filters (CATV) and coax EMI filters.
The LTC-X640 series filters have multiple circuits using passive components and are designed for stand-alone, individual mounting. These filters are supplied with a threaded conduit pipe for penetration of a shielded enclosure.
Some of our filters use a system of converting to fibre optics and then re-converting back to wire. Such is the case with our USB 2.0 and 3.0 and HDMI specialty filters.
| Model | Number of Lines | Passband Impedance | Passband Loss | Stopband Insertion Loss or Shielding Effectiveness | Maximum Current | Maximum Voltage |
| LTC-4640-USB | 4 USB 1.1 | 90 (L-L), 45 (L-G) | 1.0 dB Maximum 0 to 30 Hz |
100 dB Minimum @ 85 MHz to 10 GHz |
0.5 | 500 |
| LTC-25640-GPIB | 24 | 12400 (L-L), 6200 (L-G) | 1.0 dB Maximum 0 kHz to 2.5 kHz |
100 dB Minimum @ 25 MHz to 10 GHz |
3 | 300 |
| LMF-4113 | USB 2.0 | N/A | N/A | SE: 100 dB Minimum @ 14 kHz to 18 GHz |
5 | 120 |
| LMF-3519 | 1 NTSC Video | 75 (L-G) | 1.0 dB Maximum 0 kHz to 6.5 MHz |
100 dB Minimum @ 30 MHz to 18 GHz |
0.1 | 24 |
| LMF-4380 | HDMI | N/A | N/A | SE: 100 dB Minimum @ 14 kHz to 18 GHz |
3 | 120-230 |
| LMF-4458 | USB 3.0 | N/A | N/A | SE: 100 dB Minimum @ 14 kHz to 18 GHz |
5 | 120 |
NOTE: All these filters are supplied with a penetration and hardware.
CAUTION: The LMF-4458 filter supports only USB 3.0 devices. USB 2.0 and 1.1 devices will not function with this filter.
