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December 15, 2014

Jumper Wire Limits

How many jumper wires are allowed for rework on a circuit board and meet the IPC specs.If there is no specified limit, what maximum number of jumper wires would you advise per board?


J.S.

Expert Panel Responses

Ido not believe there is a limit as long as you don not break form, fit andfunction. It all depends on your assembly. Remember that jumperwires are to be treated as components and they follow IPC standards.

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Edithel Marietti
Senior Manufacturing Engineer
Northrop Grumman
Edithel is a chemical engineer with 20 year experience in manufacturing & process development for electronic contract manufacturers in US as well as some major OEM's. Involved in SMT, Reflow, Wave and other assembly operations entailing conformal coating and robotics.

IPC does not specify a certain number of jumper wires to be used on a board. These are modifications required by the customer and it really needs just their approval. IPC will specify though the characteristics for electrical clearance and routing of the jumper wires. I have build for years boards with a multitude of jumper wires and piggy back components. Please e-mail me for more questions: georgiansimion@yahoo.com

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Georgian Simion
Engineering and Operations Management
Independent Consultant
Georgian Simion is an independent consultant with 20+ years in electronics manufacturing engineering and operations.
Contact me at georgiansimion@yahoo.com.
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