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| Part Number | SRN4018-220M | SRN4018-221M | SRN4012-220M |
|---|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. | Bourns Inc. |
| Product Status | Active | Active | Obsolete |
| Type | Drum Core, Wirewound | Drum Core, Wirewound | Drum Core, Wirewound |
| Material - Core | Ferrite | Ferrite | Ferrite |
| Inductance | 22 µH | 220 µH | 22 µH |
| Tolerance | ±20% | ±20% | ±20% |
| Current Rating (Amps) | 900 mA | 280 mA | 620 mA |
| Current - Saturation (Isat) | 950mA | 300mA | 500mA |
| Shielding | Semi-Shielded | Semi-Shielded | Semi-Shielded |
| DC Resistance (DCR) | 348mOhm Max | 3.552Ohm Max | 480mOhm Max |
| Q @ Freq | 11 @ 2.52MHz | 30 @ 796kHz | - |
| Frequency - Self Resonant | 15MHz | 3MHz | - |
| Ratings | - | - | - |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Inductance Frequency - Test | 100 kHz | 100 kHz | 100 kHz |
| Features | - | - | - |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | Nonstandard | Nonstandard | Nonstandard |
| Supplier Device Package | - | - | - |
| Size / Dimension | 0.157" L x 0.157" W (4.00mm x 4.00mm) | 0.157" L x 0.157" W (4.00mm x 4.00mm) | 0.157" L x 0.157" W (4.00mm x 4.00mm) |
| Height - Seated (Max) | 0.071" (1.80mm) | 0.071" (1.80mm) | 0.047" (1.20mm) |
