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FAQ's
Below we have answered some common questions, however if the answer you're looking for isn't here please call us on +44 (0)1604 491107 or email via our contact form.
What do A0, B0 and K0 mean?
They are the three pocket dimensions in EIA-481-D. A0 is the pocket length, B0 the pocket width and K0 the pocket depth, each measured where the component actually sits. Quoting those three figures is usually enough for us to price a tape design.
How much clearance should a pocket have?
Enough that the part loads and unloads cleanly, but not so much that it can rotate or flip in the pocket. Too tight and parts jam or the nozzle mispicks. Too loose and the part arrives rotated and the placement machine rejects it. The tolerance is set against the component drawing rather than a single rule.
What is sprocket pitch and why does it matter?
Sprocket holes drive the tape through the feeder, and pocket pitch has to line up so the nozzle arrives over the centre of a pocket on every index. EIA-481-D fixes the relationship between tape width, sprocket pitch and pocket position, which is what makes tape from different suppliers interchangeable on the same machine.
Can you design the pocket from a sample rather than a drawing?
Yes. Send a sample component and we can measure it and design the pocket around it. A drawing speeds things up but is not essential.
Do you make the tooling?
Yes, on site. A new pocket geometry needs its own tooling, and cutting it here rather than sending the specification overseas is what allows a two-week turnaround from receipt of order.
What if my component will not fit a standard pocket?
We can form pockets that deviate from EIA-481-D where the component requires it, including deep pockets to 30 mm. The trade-off is that non-standard tape may need feeder adjustment at the assembly end, so it is worth confirming with whoever runs the line.














