| Waldom | Eaton Electronics BK1/S506-80-R | 65 | 4000 | 1 | 65 @ $0.88, 350 @ $0.86, 650 @ $0.85, 1000 @ $0.81 |
| Waldom | EATON ELECTRONICS BK1-S506-80-R | 1 | | 1 | |
| Waldom | EATON ELECTRONICS S506-80-R | 1 | | 1 | |
| RS Delivers | 537-1739 | 1 | 720 | 1 | 1 @ $0.64 |
| us.rs-online.com | 70426057 | 5 | | 5 | 5 @ $7.30, 20 @ $6.79, 50 @ $6.49, 100 @ $6.18, 500 @ $6.03 |
| us.rs-online.com | 74057178 | 1000 | | 1000 | 1000 @ $1.12 |
| Digi-Key | 14723338 | 1 | | 1 | |
| Allied Electronics | 70426057 | 5 | | 5 | |
| Digi-Key | 1878117 | 1 | | 1 | 5 @ $10.28 |
| Digi-Key | 1877175 | 1 | | 1 | 1000 @ $1.10 |
| Waldom | EATON BK1/S506-80-R | 1 | | 1 | 1 @ $0.85, 250 @ $0.81, 500 @ $0.80, 1000 @ $0.77, 5000 @ $0.75 |
| Waldom | EATON BK1-S506-80-R | 64 | | 64 | 1 @ $0.88, 64 @ $0.79, 250 @ $0.75, 500 @ $0.74, 1000 @ $0.71, 5000 @ $0.70 |
| Waldom | EATON S506-80-R | 1 | | 1 | 1 @ $4.42, 2 @ $4.20, 3 @ $4.11, 5 @ $3.97 |
| sustainablesupply.com | C1177131 | 1 | -2 | 1 | 1 @ $36.14 |
 Digi-Key | S506-80-R-ND | 5 | | 5 | 5 @ $6.94 |
| Future Electronics | 8867921 | 44 | 344 | 44 | 44 @ $1.43, 200 @ $1.11, 500 @ $1.06, 1000 @ $1.03 |