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 |