H - Electricity – 01 – C
Patent
H - Electricity
01
C
317/12.4
H01C 7/12 (2006.01) H01C 7/00 (2006.01) H01C 17/22 (2006.01) H01C 17/23 (2006.01) H04M 3/18 (2006.01)
Patent
CA 1292503
SURGE PROTECTOR FOR TELECOMMUNICATIONS TERMINALS Abstract of the Disclosure A surge protector, particularly for protecting components in a telecommunications system, has a thin ceramic substrate on a surface of which is formed a surge protector resistor having a spiral pattern in the form of a double spiral having two parallel resistor paths in series, the width of the paths and the distance between adjacent path lengths being relatively narrow. Resistance trimming means are provided for increasing the length of a resistor path, there being substantially even distribution of surge effects under surge conditions. - i -
531773
Bender David Kester
Lathrop Richard Reynold Jr.
Junkin Charles William
Northern Telecom Limited
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