Zero-ohm jumpers offer flexible board routing

Welwyn Components has added thick-film copper zero-ohm jumper chips with a 35A rated current to its LR chip resistor family, with sizes ranging from 0805 to 2512.

Welwyn Components has added thick-film copper zero-ohm jumper chips with a 35A rated current to its LR chip resistor family, with sizes ranging from 0805 to 2512.

Employed in automotive, motor control and power supply applications, the LRZ jumpers provide track crossovers without the expense of extra PCB track layers.

This allows customers to standardise on the PCB layout and use jumpers for required model variations.

The chip offers superior high current performance (to 35A) over conventional thick-film zero-ohm jumper chip solutions, offering lower resistance values with better thermal conductivity.

(Conventional thick film jumper chips can have resistance values as high as 50mohm and current ratings are restricted to 2A).

John Graham, Marketing and Sales Director, TT Electronics Welwyn Components, said: "This is a natural progression to our LR family of products".

"Because of its unique design the LRZ jumper has a high current handling capability when compared to traditional ceramic chip resistor jumper chips".

"It offers flexibility to the designer when deviation from a standard PCB layout is required".

A copper on alumina resistor, the LRZ features less than 3mohm resistance and an inductance of less than 0.2nH.

The series comes in four standard sizes: 0805, 1206, 2010 and 2512.

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