| Onlinecomponents.com | F181U | 1 | 82 | | 1 @ $68.24, 25 @ $62.03, 50 @ $56.86, 60 @ $52.49, 65 @ $48.74, 83 @ $45.49 |
| Master Electronics | F181U | | 72 | | 1 @ $68.24, 25 @ $62.03, 50 @ $56.86, 60 @ $52.49, 65 @ $48.74, 83 @ $45.49 |
| Electro Sonic | F181U | 1 | 82 | | 1 @ $72.33, 25 @ $65.75, 50 @ $60.27, 60 @ $55.64, 65 @ $51.66, 83 @ $48.22 |
| Verical | F-181U | 1 | 82 | | 1 @ $102.24, 2 @ $100.82, 3 @ $99.43, 5 @ $96.78, 10 @ $94.27, 20 @ $91.88, 50 @ $81.46 |
| Onlinecomponents.com | F-181U | 1 | 80 | 1 | 1 @ $74.38, 25 @ $67.61, 50 @ $61.98, 60 @ $57.21, 65 @ $53.13, 83 @ $49.58 |