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| PartNumber | HK21253N9K-T | HK21253N9S-T | HK21253N9S |
| Description | Fixed Inductors 0805 3.9nH 150mOhms +/-10%Tol 300mA HiQ | Fixed Inductors INDCTR HIFREQ MLTLYR 0805 3.90.3nH | |
| Manufacturer | Taiyo Yuden | Taiyo Yuden | - |
| Product Category | Fixed Inductors | Fixed Inductors | - |
| RoHS | Y | - | - |
| Termination Style | SMD/SMT | SMD/SMT | - |
| Shielding | Unshielded | Unshielded | - |
| Inductance | 3.9 nH | 3.9nH | - |
| Tolerance | 10 % | ±0.3nH | - |
| Maximum DC Current | 300 mA | 300 mA | - |
| Maximum DC Resistance | 150 mOhms | 0.15 Ohms | - |
| Self Resonant Frequency | 4000 MHz | 4000 MHz | - |
| Minimum Operating Temperature | - 55 C | - | - |
| Maximum Operating Temperature | + 125 C | - | - |
| Q Minimum | 12 | 12 | - |
| Test Frequency | 100 MHz | 100 MHz | - |
| Termination | Standard | - | - |
| Package / Case | 0805 (2125 metric) | - | - |
| Length | 2.1 mm | 2.1 mm | - |
| Width | 1.2 mm | 1.2 mm | - |
| Height | 0.85 mm | 0.85 mm | - |
| Diameter | - | - | - |
| Application | RF | - | - |
| Series | HK | HK | - |
| Packaging | Reel | Tape & Reel (TR) | - |
| Core Material | - | - | - |
| Product | Fixed Inductors | RF Inductors | - |
| Type | Multilayer | Multilayer | - |
| Brand | Taiyo Yuden | - | - |
| Case Code in | 0805 | - | - |
| Case Code mm | 2125 | - | - |
| Lead Diameter | - | - | - |
| Lead Spacing | - | - | - |
| Product Type | Fixed Inductors | - | - |
| Factory Pack Quantity | 4000 | - | - |
| Subcategory | Inductors, Chokes & Coils | - | - |
| Current Rating | - | 300mA | - |
| Operating Temperature Range | - | - 55 C to + 125 C | - |
| Package Case | - | 0805 (2125 metric) | - |
| Operating Temperature | - | -40°C ~ 85°C | - |
| Mounting Type | - | Surface Mount | - |
| Size Dimension | - | 0.079" L x 0.049" W (2.00mm x 1.25mm) | - |
| Height Seated Max | - | 0.041" (1.05mm) | - |
| Ratings | - | - | - |
| DC Resistance DCR | - | 150 mOhm Max | - |
| Material Core | - | Ferrite | - |
| Current Saturation | - | - | - |
| Q Freq | - | 12 @ 100MHz | - |
| Frequency Self Resonant | - | 4GHz | - |
| Frequency Test | - | 100MHz | - |