Description
FIXED IND 2.2UH 509MA 800 MOHM
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for SM3-221K.
SM3-221K has an inductance value of 2.2 µH. This value indicates how much magnetic energy the component can store and is one of the first parameters to compare when selecting an inductor.
SM3-221K is rated for 509 mA. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
SM3-221K lists a DC resistance of 800mOhm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
SM3-221K uses a package or case of 1210 (3225 Metric). Package size affects PCB footprint, height clearance, thermal behavior, and compatibility with automated assembly.
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Product Attributes
| Inductance | 2.2 µH |
| Tolerance | ±10% |
| Current Rating | 509 mA |
| DC Resistance (DCR) | 800mOhm Max |
| Operating Temperature | -55°C ~ 125°C |
| Dimensions | 0.126" L x 0.098" W (3.20mm x 2.49mm) |
| Case / Size | 1210 (3225 Metric) |
| Package / Case | 1210 (3225 Metric) |
| Supplier | Gowanda |
| Description | FIXED IND 2.2UH 509MA 800 MOHM |
| Series | SM3 |
| Product Status | Active |
| Type / Construction | Molded |
| Core Material | Iron Powder |
| Shielding | Unshielded |
| Self Resonant Frequency | 60MHz |
| Inductance Test Frequency | 4 MHz |
| Mounting Type | Surface Mount |
| Supplier Device Package | 1210 |
| Height - Seated (Max) | 0.102" (2.60mm) |
