Why Do Some 9GT0612P4G001 Sanyo Denki Fans Look Different?

If you’re wondering why the 9GT0612P4G001 fans from Sanyo Denki appear different in some cases — specifically, some units have a substance filling the pocket (as circled below) — please refer to the manufacturer’s response on this.

The glue shown in the photo is balancing glue, which is applied to ensure proper balance. The pattern and placement of the glue may vary slightly because each fan is individually balanced.

These variations are normal, do not indicate defects, and should not be a cause for concern.

Applicable Part Numbers
DigiKey Part Number Manufacturer Part Number
1688-1630-ND 9GT0612P4G001
9GT0612G4002-ND 9GT0612G4002
1688-1631-ND 9GT0624P4G001
9GT0624G4002-ND 9GT0624G4002
9GT0612G4D001-ND 9GT0612G4D001
9GT0612G4001-ND 9GT0612G4001
9GT0624G4001-ND 9GT0624G4001