Kitting guidelines for components when PCB assembly

1.Each SMT component line item must be in a single continuous tape – a minimum of 6″ long cut tape / Reel / mini-reel. Tubes, tray, and loose packaging may be okay, confirm with team before purchasing/sending.

2.Each line Item must have extra quantity of components for ATTRITION during assembly  process, as per the following guidelines. Expensive components and or low stock items may bypass these guidelines but hopetimepcb.com must be notified in advance so that the parts are handled properly.

--Discrete SMT passives:

1.01005 size: 50% extra subject to a minimum of 100 pcs extra

-Extra components Qty should be greater of 100 pcs or 50% of the required Quantity

e.g. for 01005 size components, If Required Qty = 70, 50% extra = 35, Min Qty = 100, So Total Qty Required = 70 + max (35, 100) = 70 + 100 = 170

2.0201 size: 50% extra subject to a minimum of 50 pcs extra

-Extra components Qty should be greater of 50 pcs or 50% of the required Quantity

e.g. for 0201 size components, If Required Qty = 70, 50% extra = 35, Min Qty = 50, So Total Qty Required = 70 + max (35, 50) = 70 + 50 = 120

3.0402 size: 25% extra subject to a minimum of 20 extra

-Extra components Qty should be greater of 20 or 25% of the required Quantity

4.0603 size: 15% extra subject to a minimum of 20 extra

-Extra components Qty should be greater of 20 or 15% of the required Quantity

5.0805 size: 10% extra subject to a minimum of 10 extra

-Extra components Qty should be greater of 10 or 10% of the required Quantity

6.1206 size or larger: 10% extra subject to a minimum of 5 extra

-Extra components Qty should be greater of 5 or 10% of the required Quantity

--Active Devices:

1.Component Width 0.6mm or smaller: 20% extra subject to a minimum of 20 extra

-Extra components should be greater of 20 or 20% of the required Quantity

2.Component Width 0.6 – 1mm: 10% extra – subject to a minimum of 10 extra

-Extra components should be greater of 10 or 10% of the required Quantity

3.Component Width 1 – 1.6mm: 10% extra subject to a minimum of 5 extra

-Extra components should be greater of 5 or 10% of the required Quantity

4.Component Width 1.6 – 2mm: 5% extra subject to a minimum of 5 extra

-Extra components should be greater of 5 or 5% of the required Quantity

5.Component Width Larger than 2mm: 5% extra subject to a minimum of 2 extra

-Extra components should be greater of 2 or 5% of the required Quantity

--Thru-Hole devices:

1.Small Devices: 5% extra subject to a minimum of 2 extra

-Extra components should be greater of 2 or 5% of the required Quantity

2.Other Devices: 2% extra subject to a minimum of 1 extra

-Extra components should be greater of 1 or 2% of the required Quantity

--Hardware (screws, nuts, washers, etc.):

1.Hardware costing less than $.50: 10% extra subject to a minimum of 5 extra

2.Hardware costing $.50 – $2.00: 5% extra subject to a minimum of 2 extra

3.Hardware costing more than $2.00: 2% extra subject to a minimum of 1 extra

Click here:Components sourcing for PCB Assembly