| Jameco | 1070027 | 1 | | 1 | |
 Radwell | QSD123 | 1 | | 1 | 1 @ $0.59 |
 Digi-Key | QSD123-ND | 1 | 9218 | 1 | 1 @ $0.53, 10 @ $0.35, 100 @ $0.23, 1000 @ $0.18, 2000 @ $0.16, 5000 @ $0.15, 10000 @ $0.14 |
| 1Source | QSD123 | 1 | | 1 | |
| Hotenda | H3943064 | 1 | | 1 | 1 @ $0.66, 10 @ $0.48, 25 @ $0.39, 100 @ $0.31, 250 @ $0.26, 500 @ $0.22 |
| Future Electronics | 2521227 | 1 | 9849 | 1 | 1 @ $0.17, 3000 @ $0.17 |
 Digi-Key | 13453161 | 1 | | 1 | |
 Avnet | QSD123 | 250 | 50 | 1 | 250 @ $0.14, 10000 @ $0.13 |
| Mouser | 512-QSD123 | 1 | 143 | 1 | 1 @ $0.61, 10 @ $0.45, 100 @ $0.26, 1000 @ $0.20, 10000 @ $0.17 |
| RS Delivers | 184-1423 | 25 | | 25 | 25 @ $0.48, 100 @ $0.32, 1000 @ $0.23, 2500 @ $0.21, 10000 @ $0.20 |
| Newark | 29AC9635 | 1 | | 1 | |
 Newark | 31Y3729 | 1 | | 1 | 1 @ $0.81, 10 @ $0.54, 100 @ $0.46, 500 @ $0.37, 1000 @ $0.29, 2500 @ $0.27, 10000 @ $0.25 |
 Newark | 58K2116 | 1 | | 1 | 1 @ $0.79, 10 @ $0.52, 100 @ $0.43, 500 @ $0.35, 1000 @ $0.27, 2500 @ $0.25, 10000 @ $0.22 |
 TME | QSD123 | 1 | 140 | 1 | 1 @ $0.94, 10 @ $0.51, 100 @ $0.40, 500 @ $0.34, 1000 @ $0.31 |
| RS Delivers | 184-1083 | 1 | 1250 | 1 | 1 @ $0.38 |
| Digi-Key | 187443 | 1 | | 1 | 1 @ $0.92, 10 @ $0.61, 100 @ $0.40, 1000 @ $0.31, 2000 @ $0.28, 5000 @ $0.26, 10000 @ $0.25, 25000 @ $0.25 |