Standard 4-Port Circulators & Isolators
| Band | Frequency (GHz) | Flange Type | Weight (Oz Nom) | L” | W” | H” | Model No. |
| H | 7.05-10.00 | UG | 28 | 4.125 | 2.50 | 1.88 | HD |
| 138/U | 1.875 | 5.00 | 1.88 | HHD | |||
| X | 8.20-12.40 | UG | 20 | 3.500 | 2.00 | 1.63 | XD |
| 135/U | 1.625 | 4.00 | 1.63 | XHD | |||
| M | 10.00-15.00 | WR | 16 | 3.062 | 1.88 | 1.50 | MD |
| 75 | 1.500 | 3.75 | 1.50 | MHD | |||
| P | 12.40-18.00 | UG | 9 | 2.687 | 1.75 | 1.32 | PD |
| 1665/U | 1.312 | 3.38 | 1.32 | PHD | |||
| K | 18.00-26.50 | UG | 5 | 2.000 | 1.25 | 0.88 | KD |
| 597/U | 0.875 | 2.13 | 0.88 | KHD | |||
| R | 26.50-40.00 | UG | 4 | 1.562 | 1.00 | 0.80 | RD |
| 599/U | 0.750 | 1.75 | 0.80 | RHD |