Terminal for telegraph and telephone systems

Details Terminal for telegraph and telephone systems Terminal for telegraph and telephone systems

1992-03-11

1994-05-24

Dwyer, James L.

Telephonic communications

Subscriber line or transmission line interface

Network interface device

338 22R, H04M 908

Patent

active

053156528

ABSTRACT:
A terminal for telegraph and telephone systems using as an overvoltage/overcurrent protecting component a positive temperature coefficient thermistor element comprising a plate-shaped ceramic body made of a ceramic material whose Curie temperature is in the range of 60.degree. to 120.degree. C., and having a thickness of 2.5 to 5.0 mm, and electrodes formed on both major surfaces of the ceramic body.

REFERENCES:
patent: 4937435 (1990-06-01), Goss et al.
patent: 4992771 (1991-02-01), Caporali et al.
patent: 5088837 (1992-02-01), Shiokawa et al.

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