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| PartNumber | ER1840-28JR | ER1840-28JM | ER1840-28JP |
| Description | Fixed Inductors .43uH 5% .25ohm Est Reli ThruHole RF | Fixed Inductors .43uH 5% .25ohm Est Reli ThruHole RF | Fixed Inductors .43uH 5% .25ohm Est Reli ThruHole RF |
| Manufacturer | API Delevan [MIL] | API Delevan [MIL] | API Delevan [MIL] |
| Product Category | Fixed Inductors | Fixed Inductors | Fixed Inductors |
| Series | ER1840 | ER1840 | ER1840 |
| Product | RF Inductors | RF Inductors | RF Inductors |
| Type | Molded | Molded | Molded |
| Packaging | Bulk | Bulk | Bulk |
| Unit Weight | 0.033510 oz | 0.033510 oz | 0.033510 oz |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Current Rating | 520mA | 520mA | 520mA |
| Termination Style | Axial | Axial | Axial |
| Length | 11.1 mm | 11.1 mm | 11.1 mm |
| Package Case | Axial | Axial | Axial |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Size Dimension | 0.187" Dia x 0.437" L (4.75mm x 11.10mm) | 0.187" Dia x 0.437" L (4.75mm x 11.10mm) | 0.187" Dia x 0.437" L (4.75mm x 11.10mm) |
| Tolerance | ±5% | ±5% | ±5% |
| Height Seated Max | - | - | - |
| Ratings | - | - | - |
| Diameter | 4.75 mm | 4.75 mm | 4.75 mm |
| Shielding | Unshielded | Unshielded | Unshielded |
| Inductance | 8.2μH | 8.2μH | 8.2μH |
| DC Resistance DCR | 440 mOhm Max | 440 mOhm Max | 440 mOhm Max |
| Material Core | Iron | Iron | Iron |
| Current Saturation | - | - | - |
| Q Freq | 30 @ 7.9MHz | 30 @ 7.9MHz | 30 @ 7.9MHz |
| Frequency Self Resonant | 48MHz | 48MHz | 48MHz |
| Frequency Test | 7.9MHz | 7.9MHz | 7.9MHz |
| Maximum DC Resistance | 20.5 mOhms | 31 Ohms | 31 Ohms |