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| Part Number | 77F120J-TR-RC | 77F120K-TR-RC | 77F121J-TR-RC | 77F220J-TR-RC |
|---|---|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. |
| Product Status | Active | Active | Active | Active |
| Type | Drum Core, Wirewound | Drum Core, Wirewound | Drum Core, Wirewound | Drum Core, Wirewound |
| Material - Core | Ferrite | Ferrite | Ferrite | Ferrite |
| Inductance | 1 mH | 12 µH | 120 µH | 22 µH |
| Tolerance | ±5% | ±10% | ±5% | ±10% |
| Current Rating (Amps) | 100 mA | 480 mA | 185 mA | 410 mA |
| Current - Saturation (Isat) | - | - | - | - |
| Shielding | Unshielded | Unshielded | Unshielded | Unshielded |
| DC Resistance (DCR) | 20Ohm Max | 700mOhm Max | 3Ohm Max | 900mOhm Max |
| Q @ Freq | 50 @ 796kHz | 75 @ 2.52MHz | 60 @ 796kHz | 60 @ 2.52MHz |
| Frequency - Self Resonant | 1.2MHz | 34MHz | 3.8MHz | 9.9MHz |
| Ratings | - | - | - | - |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C |
| Inductance Frequency - Test | 796 kHz | 2.52 MHz | 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) | 0.157" Dia x 0.410" L (3.99mm x 10.41mm) | 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) | - | - | - | - |
