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| Part Number | 77F681J | 78F681J | 77F181J | 77F680J |
|---|---|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete |
| Type | Drum Core, Wirewound | Drum Core, Wirewound | Drum Core, Wirewound | Drum Core, Wirewound |
| Material - Core | Ferrite | Ferrite | Ferrite | Ferrite |
| Inductance | 680 µH | 680 µH | 180 µH | 68 µH |
| Tolerance | ±5% | ±5% | ±5% | ±5% |
| Current Rating (Amps) | 113 mA | 45 mA | 165 mA | 305 mA |
| Current - Saturation (Isat) | - | - | - | - |
| Shielding | Unshielded | Unshielded | Unshielded | Unshielded |
| DC Resistance (DCR) | 9.4Ohm Max | 18Ohm Max | 4.6Ohm Max | 1.47Ohm Max |
| Q @ Freq | 55 @ 796kHz | 60 @ 790kHz | 70 @ 796kHz | 40 @ 2.52MHz |
| Frequency - Self Resonant | 1.95MHz | 2MHz | 3.3MHz | 5.7MHz |
| Ratings | - | - | - | - |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C |
| Inductance Frequency - Test | 796 kHz | 790 kHz | 796 kHz | 2.52 MHz |
| Features | - | - | - | - |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | Axial | Axial | Axial | Axial |
| Supplier Device Package | - | - | - | - |
| Size / Dimension | 0.157" Dia x 0.410" L (3.99mm x 10.41mm) | 0.110" Dia x 0.280" L (2.79mm x 7.11mm) | 0.157" Dia x 0.410" L (3.99mm x 10.41mm) | 0.157" Dia x 0.410" L (3.99mm x 10.41mm) |
| Height - Seated (Max) | - | - | - | - |
