IPC-7351B Naming Convention for Quad Flat No-Lead with Thermal Pad QFN

QFN + Pitch P + Body Width X Body Length X Height Pin Quantity

Example:

QFN50P500X500X100-28_JEDEC_MO-220VHHD_Silab_QFN-28

QFN – Quad Flat No-Lead
50 – Pitch = 0.50mm
500 – Body Width = 5.00mm
500 – Body Length = 5.00mm
100 – Height = 1.00mm
28 – Pin Quantity
JEDEC_MO-220VHHD – Standard Package Name (Added by PCB-3D.com)
Silab – Manufacturer Name (Added by PCB-3D.com)
QFN-28 – Manufacturer Code/Package Name (Added by PCB-3D.com)