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| Part Number | 78F820J | 78F821J | 77F820J | 78F120J | 78F220J |
|---|---|---|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Type | Drum Core, Wirewound | Drum Core, Wirewound | Drum Core, Wirewound | Drum Core, Wirewound | Drum Core, Wirewound |
| Material - Core | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite |
| Inductance | 82 µH | 820 µH | 82 µH | 12 µH | 22 µH |
| Tolerance | ±5% | ±5% | ±5% | ±5% | ±5% |
| Current Rating (Amps) | 132 mA | 43 mA | 290 mA | 155 mA | 140 mA |
| Current - Saturation (Isat) | - | - | - | - | - |
| Shielding | Unshielded | Unshielded | Unshielded | Unshielded | Unshielded |
| DC Resistance (DCR) | 3.2Ohm Max | 23Ohm Max | 1.62Ohm Max | 800mOhm Max | 1.2Ohm Max |
| Q @ Freq | 60 @ 2.5MHz | 60 @ 790kHz | 35 @ 2.52MHz | 45 @ 2.5MHz | 50 @ 2.5MHz |
| Frequency - Self Resonant | 6MHz | 1.5MHz | 5.3MHz | 20MHz | 13MHz |
| Ratings | - | - | - | - | - |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C |
| Inductance Frequency - Test | 2.5 MHz | 790 kHz | 2.52 MHz | 2.5 MHz | 2.5 MHz |
| Features | - | - | - | - | - |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | Axial | Axial | Axial | Axial | Axial |
| Supplier Device Package | - | - | - | - | - |
| Size / Dimension | 0.110" Dia x 0.280" L (2.79mm x 7.11mm) | 0.110" Dia x 0.280" L (2.79mm x 7.11mm) | 0.157" Dia x 0.410" L (3.99mm x 10.41mm) | 0.110" Dia x 0.280" L (2.79mm x 7.11mm) | 0.110" Dia x 0.280" L (2.79mm x 7.11mm) |
| Height - Seated (Max) | - | - | - | - | - |
