| Onlinecomponents.com | UG21DU | 1 | 175 | | 1 @ $28.18, 25 @ $25.62, 50 @ $22.16, 100 @ $16.63, 250 @ $16.25, 500 @ $15.24, 1000 @ $14.07, 2500 @ $13.06 |
| Master Electronics | UG21DU | | 154 | | 1 @ $28.18, 25 @ $25.62, 50 @ $22.16, 100 @ $16.63, 250 @ $16.25, 500 @ $15.24, 1000 @ $14.07, 2500 @ $13.06 |
| CDM Electronics | UG-21D/U | | | | |
| Electro Sonic | UG21DU | 1 | 175 | | 1 @ $29.87, 25 @ $27.16, 50 @ $23.49, 100 @ $17.63, 250 @ $17.23, 500 @ $16.15, 1000 @ $14.91, 2500 @ $13.84 |
| Onlinecomponents.com | UG-21D/U | 1 | 175 | 1 | 1 @ $28.18, 25 @ $25.62, 50 @ $22.16, 100 @ $16.63, 250 @ $16.25, 500 @ $15.24, 1000 @ $14.07, 2500 @ $13.06 |
| 1Source | UG-21D/U | 1 | | 1 | |