Description
FIXED IND 120UH 490MA 680 MOHM
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for PM74SB-121K-RC.
PM74SB-121K-RC has an inductance value of 120 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.
PM74SB-121K-RC is rated for 490 mA. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
PM74SB-121K-RC lists a DC resistance of 680mOhm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
PM74SB-121K-RC uses a package or case of Nonstandard. Package size affects PCB footprint, height clearance, thermal behavior, and compatibility with automated assembly.
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Product Attributes
| Inductance | 120 µH |
| Tolerance | ±10% |
| Current Rating | 490 mA |
| DC Resistance (DCR) | 680mOhm Max |
| Saturation Current | 630mA |
| Operating Temperature | -40°C ~ 125°C |
| Dimensions | 0.307" L x 0.276" W (7.80mm x 7.00mm) |
| Case / Size | Nonstandard |
| Package / Case | Nonstandard |
| Supplier | Bourns Inc. |
| Description | FIXED IND 120UH 490MA 680 MOHM |
| Series | PM74SB |
| Product Status | Active |
| Type / Construction | Drum Core, Wirewound |
| Core Material | Ferrite |
| Shielding | Shielded |
| Self Resonant Frequency | 7MHz |
| Inductance Test Frequency | 100 kHz |
| Mounting Type | Surface Mount |
| Height - Seated (Max) | 0.193" (4.90mm) |
