Description
FIXED IND 3.9UH 1.98A 76 MOHM
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for SDR0403-3R9ML.
SDR0403-3R9ML has an inductance value of 3.9 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.
SDR0403-3R9ML is rated for 1.98 A. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
SDR0403-3R9ML lists a DC resistance of 76mOhm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
SDR0403-3R9ML 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 | 3.9 µH |
| Tolerance | ±20% |
| Current Rating | 1.98 A |
| DC Resistance (DCR) | 76mOhm Max |
| Saturation Current | 2.7A |
| Operating Temperature | -40°C ~ 125°C |
| Dimensions | 0.177" L x 0.157" W (4.50mm x 4.00mm) |
| Case / Size | Nonstandard |
| Package / Case | Nonstandard |
| Supplier | Bourns Inc. |
| Description | FIXED IND 3.9UH 1.98A 76 MOHM |
| Series | SDR0403 |
| Product Status | Active |
| Type / Construction | Drum Core, Wirewound |
| Core Material | Ferrite |
| Shielding | Unshielded |
| Q @ Frequency | 28 @ 7.96MHz |
| Self Resonant Frequency | 55MHz |
| Inductance Test Frequency | 1 kHz |
| Mounting Type | Surface Mount |
| Height - Seated (Max) | 0.138" (3.50mm) |
