We have received calls lately from customers wondering where the marking is for pin 1 on the ATS-FD series of attenuators from Susumu such as the ATS1005-6DB-FD-T05, for proper orientation when adding this part to the PCB. We reached out to Susumu on this one and received the following answer:
Regarding our ATS****-FD series, there is no orientation.
The internal resistive patterns are point-symmetry as below.
Applicable Part Numbers
| DigiKey Part Number | Manufacturer Part Number |
|---|---|
| 408-ATS1005-3DB-FD-T05TR-ND,408-ATS1005-3DB-FD-T05CT-ND,408-ATS1005-3DB-FD-T05DKR-ND | ATS1005-3DB-FD-T05 |
| 408-ATS1005-6DB-FD-T05TR-ND,408-ATS1005-6DB-FD-T05CT-ND,408-ATS1005-6DB-FD-T05DKR-ND | ATS1005-6DB-FD-T05 |
| 408-ATS1005-10DB-FD-T05TR-ND,408-ATS1005-10DB-FD-T05CT-ND,408-ATS1005-10DB-FD-T05DKR-ND | ATS1005-10DB-FD-T05 |
| 408-ATS1005-1DB-FD-T05TR-ND,408-ATS1005-1DB-FD-T05CT-ND,408-ATS1005-1DB-FD-T05DKR-ND | ATS1005-1DB-FD-T05 |
| 408-ATS2012-00DB-FD-T05TR-ND,408-ATS2012-00DB-FD-T05CT-ND,408-ATS2012-00DB-FD-T05DKR-ND | ATS2012-00DB-FD-T05 |
| 408-ATS2012-03DB-FD-T05TR-ND,408-ATS2012-03DB-FD-T05CT-ND,408-ATS2012-03DB-FD-T05DKR-ND | ATS2012-03DB-FD-T05 |
| 408-ATS2012-05DB-FD-T05TR-ND,408-ATS2012-05DB-FD-T05CT-ND,408-ATS2012-05DB-FD-T05DKR-ND | ATS2012-05DB-FD-T05 |
| 408-ATS2012-02DB-FD-T05TR-ND,408-ATS2012-02DB-FD-T05CT-ND,408-ATS2012-02DB-FD-T05DKR-ND | ATS2012-02DB-FD-T05 |
| 408-ATS1005-8DB-FD-T05TR-ND,408-ATS1005-8DB-FD-T05CT-ND,408-ATS1005-8DB-FD-T05DKR-ND | ATS1005-8DB-FD-T05 |
| 408-ATS1005-5DB-FD-T05TR-ND,408-ATS1005-5DB-FD-T05CT-ND,408-ATS1005-5DB-FD-T05DKR-ND | ATS1005-5DB-FD-T05 |
| 408-ATS1005-7DB-FD-T05TR-ND,408-ATS1005-7DB-FD-T05CT-ND,408-ATS1005-7DB-FD-T05DKR-ND | ATS1005-7DB-FD-T05 |
| 408-ATS1005-9DB-FD-T05TR-ND,408-ATS1005-9DB-FD-T05CT-ND,408-ATS1005-9DB-FD-T05DKR-ND | ATS1005-9DB-FD-T05 |
| 408-ATS2012-06DB-FD-T05TR-ND,408-ATS2012-06DB-FD-T05CT-ND,408-ATS2012-06DB-FD-T05DKR-ND | ATS2012-06DB-FD-T05 |
| 408-ATS2012-09DB-FD-T05TR-ND,408-ATS2012-09DB-FD-T05CT-ND,408-ATS2012-09DB-FD-T05DKR-ND | ATS2012-09DB-FD-T05 |
| 408-ATS2012-04DB-FD-T05TR-ND,408-ATS2012-04DB-FD-T05CT-ND,408-ATS2012-04DB-FD-T05DKR-ND | ATS2012-04DB-FD-T05 |
| 408-ATS2012-07DB-FD-T05TR-ND,408-ATS2012-07DB-FD-T05CT-ND,408-ATS2012-07DB-FD-T05DKR-ND | ATS2012-07DB-FD-T05 |
| 408-ATS2012-08DB-FD-T05TR-ND,408-ATS2012-08DB-FD-T05CT-ND,408-ATS2012-08DB-FD-T05DKR-ND | ATS2012-08DB-FD-T05 |
| 408-ATS2012-10DB-FD-T05TR-ND,408-ATS2012-10DB-FD-T05CT-ND,408-ATS2012-10DB-FD-T05DKR-ND | ATS2012-10DB-FD-T05 |
| 408-ATS2012-01DB-FD-T05TR-ND,408-ATS2012-01DB-FD-T05CT-ND,408-ATS2012-01DB-FD-T05DKR-ND | ATS2012-01DB-FD-T05 |
| 408-ATS1005-2DB-FD-T05TR-ND,408-ATS1005-2DB-FD-T05CT-ND,408-ATS1005-2DB-FD-T05DKR-ND | ATS1005-2DB-FD-T05 |
| 408-ATS1005-4DB-FD-T05TR-ND,408-ATS1005-4DB-FD-T05CT-ND,408-ATS1005-4DB-FD-T05DKR-ND | ATS1005-4DB-FD-T05 |
| 408-ATS1005-0DB-FD-T05TR-ND,408-ATS1005-0DB-FD-T05CT-ND,408-ATS1005-0DB-FD-T05DKR-ND | ATS1005-0DB-FD-T05 |
| 408-ATS1005-4DB-FD-T1TR-ND | ATS1005-4DB-FD-T1 |
| 408-ATS1005-0DB-FD-T1TR-ND | ATS1005-0DB-FD-T1 |
| 408-ATS1005-3DB-FD-T1TR-ND | ATS1005-3DB-FD-T1 |
| 408-ATS1005-8DB-FD-T1TR-ND | ATS1005-8DB-FD-T1 |
| 408-ATS1005-5DB-FD-T1TR-ND | ATS1005-5DB-FD-T1 |
| 408-ATS1005-6DB-FD-T1TR-ND | ATS1005-6DB-FD-T1 |
| 408-ATS1005-10DB-FD-T1TR-ND | ATS1005-10DB-FD-T1 |
| 408-ATS1005-7DB-FD-T1TR-ND | ATS1005-7DB-FD-T1 |
| 408-ATS1005-2DB-FD-T1TR-ND | ATS1005-2DB-FD-T1 |
| 408-ATS1005-1DB-FD-T1TR-ND | ATS1005-1DB-FD-T1 |
| 408-ATS1005-9DB-FD-T1TR-ND | ATS1005-9DB-FD-T1 |
| 408-ATS2012-10DB-FD-T1TR-ND | ATS2012-10DB-FD-T1 |
| 408-ATS2012-08DB-FD-T1TR-ND | ATS2012-08DB-FD-T1 |
| 408-ATS2012-06DB-FD-T1TR-ND | ATS2012-06DB-FD-T1 |
| 408-ATS2012-07DB-FD-T1TR-ND | ATS2012-07DB-FD-T1 |
| 408-ATS2012-03DB-FD-T1TR-ND | ATS2012-03DB-FD-T1 |
| 408-ATS2012-04DB-FD-T1TR-ND | ATS2012-04DB-FD-T1 |
| 408-ATS2012-09DB-FD-T1TR-ND | ATS2012-09DB-FD-T1 |
| 408-ATS2012-00DB-FD-T1TR-ND | ATS2012-00DB-FD-T1 |
| 408-ATS2012-01DB-FD-T1TR-ND | ATS2012-01DB-FD-T1 |
| 408-ATS2012-02DB-FD-T1TR-ND | ATS2012-02DB-FD-T1 |
| 408-ATS2012-05DB-FD-T1TR-ND | ATS2012-05DB-FD-T1 |