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SMT component placement

Greg Flynn

#12691

SMT component placement | 4 February, 1999

What allowances are people using out there for components off-pad, we currently use 50% of lead width without breaking trace/component clearances but we have a customer demanding 25% allowance ?

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Peet

#12692

Re: SMT component placement | 4 February, 1999

| What allowances are people using out there for components off-pad, we currently use 50% of lead width without breaking trace/component clearances but we have a customer demanding 25% allowance ? | We use 50% for civile application, and 25% for mil. application.

Peet

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Chris G.

#12693

Re: SMT component placement | 4 February, 1999

| What allowances are people using out there for components off-pad, we currently use 50% of lead width without breaking trace/component clearances but we have a customer demanding 25% allowance ? | IPC states:

50% off pad for class 1 and 2 25% off pad for class 3

More info available in IPC 610.

Thanks,

Chris

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