Multilayer circuit board transient protection device

Details Multilayer circuit board transient protection device Multilayer circuit board transient protection device

1991-04-12

1992-07-14

Stephan, Steven L.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361111, 361406, H02H 904

Patent

active

051308827

ABSTRACT:
The device comprises a grommet like tube used in plated through holes in circuit boards. The MCBTPD puts a toroidal shaped non-linear terminal protection device (TPD) such as a surgector or diode between the circuit land and the ground plane. The MCBTPD plated through sleeve is cylindrical in shape and passes through the layers of the circuit board and in contact therewith. The TPD is connected to the bottom of the sleeve in contact with the ground plane of the circuit board. This provides the multilayer circuit board with a component which builds electrical transient protection into a plated-through type of rivet or grommet such as one used to mount electronic circuit elements like transistors or integrated circuits on a circuit board. When an electrical transient appears at the component side of the circuit board on the land which connects to the MCBTPD, a potential voltage develops across the TPD. When the transient voltage reaches a threshold level the TPD conducts the transient voltage to the ground plane.

REFERENCES:
patent: 4198613 (1980-04-01), Whitney
patent: 4675788 (1987-06-01), Breitling et al.
patent: 4729752 (1988-03-01), Dawson et al.
patent: 4839768 (1989-06-01), Daniele et al.
patent: 4860165 (1989-08-01), Cassinelli
patent: 5008770 (1991-04-01), Hilland

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