| Digi-Key | LT3990EMSE#TRPBF-ND | 2500 | | 2500 | 2500 @ $3.26 |
| Hotenda | H2770711 | 1 | | 1 | |
| Digi-Key | 2297658 | 1 | 335 | 1 | 1 @ $7.01, 10 @ $6.34, 25 @ $6.04, 100 @ $5.25, 250 @ $5.01, 500 @ $4.57, 1000 @ $4.17 |
| Digi-Key | 7838160 | 500 | | 500 | 1 @ $7.01, 10 @ $6.34, 25 @ $6.04, 100 @ $5.25, 250 @ $5.01, 500 @ $4.59 |
| Digi-Key | 7838170 | 1 | 335 | 1 | 1 @ $7.01, 10 @ $6.34, 25 @ $6.04, 100 @ $5.25, 250 @ $5.01, 500 @ $4.57, 1000 @ $4.17 |
 Newark | 50AK5752 | 1 | 1441 | 1 | 1 @ $7.85, 10 @ $7.09, 25 @ $6.76, 50 @ $6.31, 100 @ $5.88, 250 @ $5.61, 500 @ $5.12, 1000 @ $4.45 |
 jotrin.com | JT24-LT3990EMSE#TRPBF | 1 | 155 | 1 | |