| PartNumber | 1540M22 | 1540M20 | 1540M21 |
| Description | Fixed Inductors RF | Fixed Inductors RF | Fixed Inductors RF |
| Manufacturer | Hammond Manufacturing | Hammond Manufacturing | Hammond Manufacturing |
| Product Category | Fixed Inductors | Fixed Inductors | Fixed Inductors |
| Series | 1540 | 1540 | 1540 |
| Product | RF Inductors | - | RF Inductors |
| Type | Toroidal | Toroidal | Toroidal |
| Packaging | Bulk | Bulk | Bulk |
| Unit Weight | 6.400066 oz | - | 6.400066 oz |
| Current Rating | 3.75A | 1.25A | 8A |
| Termination Style | Radial | - | Radial |
| Length | 2.125 in | - | 2.125 in |
| Width | 0.937 in | - | 0.937 in |
| Package Case | Radial | Radial | Radial |
| Operating Temperature | - | - | - |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Size Dimension | 2.125" Dia x 0.937" W (53.97mm x 23.80mm) | 1.812" Dia x 0.750" W (46.02mm x 19.05mm) | 2.125" Dia x 0.937" W (53.97mm x 23.80mm) |
| Tolerance | ±15% | ±15% | ±15% |
| Height Seated Max | - | - | - |
| Ratings | - | - | - |
| Diameter | 0.625 in | - | 0.625 in |
| Shielding | Unshielded | Unshielded | Unshielded |
| Inductance | 900μH | 4.5mH | 250μH |
| DC Resistance DCR | 175 mOhm Max | 2.64 Ohm Max | 41 mOhm Max |
| Material Core | - | - | - |
| Current Saturation | - | - | - |
| Q Freq | - | - | - |
| Frequency Self Resonant | - | - | - |
| Frequency Test | - | - | - |
| Maximum DC Current | 3.75 A | - | 8 A |
| Maximum DC Resistance | 175 mOhms | - | 41 mOhms |