Littelfuse, Inc.

Roel Retardo

Albert V Enriquez

Conrado De Leon

Gordon Todd Dietsch

Bienvenido Salonga

Crispin Zulueta

Janus Pagharion

Merjaycel Marquinez

Dan Onken

Dennis Arce

Simon Jude Burgos

Edwin Canido Aberin

Marko Arciaga

Deepak Nayar

John Emannuel Semana

Francisco Rivera De Guia, Jr

Fernando Isip Arce, Jr

Restituto Dumaran

Kent Harvey Mercado Berenguel

P-A-Homer Ii Dela Torre

Randy Capablanca Servancia

Sheila Marie Vinas Bayer

Demetrio Criste

Conrado DeLeon

Marlon Daza

Aileen Dimafelix

Simon Burgos

Provided are circuit protection devices. In some embodiments, a protection device may include a set of leads extending though a socket body, wherein the socket body includes a first side opposite a second side, and a third side opposite a fourth side, wherein the third and fourth sides extend between the first and second sides, and wherein the third side includes a thermal vent. The protection device may further include a fusible element surrounding a central shaft, wherein the fusible element is connected with the set of leads.

Protection device with wall vent for breaking capacity improvement

A fuse shield features a cylindrical body, a first cap cover, a second cap cover, and a stop region. The cylindrical body is adapted to be placed over and partially surround a cylindrical fuse. The cylindrical body is sandwiched between the first and second cap covers. The stop region is located on an edge of the first cap cover to limit rotation of the cylindrical fuse to a first degree in one direction on a flat surface.

SMD fuse with pre-molded shield

A fuse includes a stack, a flattened wire, and a terminal. The stack has multiple layers arranged to form steps. The stack has an upper stack with layers of a first size and a lower stack with layers of a second, larger size. The flattened wire is located between the upper stack and the lower stack. The terminal is connected to the flattened wire and includes multiple surfaces to cover the steps at one end of the stack.

Step-terminated SMD fuse

A surface mount device chip fuse including a dielectric substrate, electrically conductive first and second upper terminals disposed on a top surface of the dielectric substrate and defining a gap therebetween, a fusible element formed of solder disposed on the top surface of the dielectric substrate, within the gap, bridging the first and second upper terminals, and electrically conductive first and second lower terminals disposed on a bottom surface of the dielectric substrate and electrically connected to the first and second upper terminals, respectively, wherein a material of the dielectric substrate exhibits a de-wetting characteristic relative to the solder from which the fusible element is formed.

Surface mount fuse with solder link and de-wetting substrate

A method of making a fuse including inserting a fuse element into a cavity in a hollow fuse body, attaching a first end cap to the hollow fuse body and electrically connecting a first end of the fuse element to the first end cap, adding a mixture of particles including a melamine compound and a steatite of at least 2 times the melamine compound by weight&#x2014;to the cavity such that the mixture of particles are disposed around the fuse element, and attaching a second end cap to the hollow fuse body and electrically connecting a second end of the fuse element to the second end cap.

Manufacturing method for foam fuse filler and cartridge fuse

Fuses having a melamine-coated-steatite foam filler are described. In particular, melamine-coated-steatite foam filler for use in a fuse comprising steatite coated in a melamine compound (e.g., plasticized melamine resin) and then heated to form crystalline foam filler are described. The foam filler may comprise steatite of substantially 3 times the melamine compound by weight and may be heated and then cooled to form the foam filler.

Foam fuse filler and cartridge fuse

An improved fuse including a fuse body formed of an electrically insulative material. The fuse body defines a cavity which extends from a first end of the fuse body to a second end of the fuse body. A fusible element is disposed within the cavity and extends from a first end face of the first end of the fuse body to a second end face of the second end of the fuse body. Insulated plugs are disposed within the cavity at the first and second ends of the fuse body wherein the plugs adhere to an interior surface of the fuse body and form seals that close the internal cavity. The fuse may further include end terminations that are applied to the ends of the fuse body in electrical contact with the fusible element.

Fuse with insulated plugs

A compact, high breaking capacity fuse that includes a top insulative layer, at least one intermediate insulative layer, and a bottom insulative layer arranged in a vertically stacked configuration. The at least one intermediate layer may have a hole formed therethrough that defines an air gap within the fuse. A first conductive terminal may be formed on a first end of the fuse and a second conductive terminal may be formed on a second end of the fuse. At least one fusible element may connect the first terminal to the second terminal, thus providing an electrically conductive pathway therebetween. A portion of the at least one fusible element may pass through the air gap defined by the hole in the at least one intermediate insulative layer.

Laminated electrical fuse

An improved fuse including a fuse body, a fusible element, end terminations and insulated plugs used to seal a cavity formed within the fuse body to extinguish electrical arcs when an overcurrent condition occurs.

Fuse with cavity block

Growing community of inventors

Lipa, Philippines

Roel Retardo