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| PartNumber | PM428S-390-RC | PM428S-330-RC | PM428S-3R3-RC |
| Description | Fixed Inductors 39uH 30% | Fixed Inductors 33uH 30% | Fixed Inductors 3.3uH 30% |
| Manufacturer | Bourns Inc. | Bourns Inc. | Bourns Inc. |
| Product Category | Fixed Inductors | Fixed Inductors | Fixed Inductors |
| Series | PM428S | PM428S | PM428S |
| Product | Power Inductors | Power Inductors | Power Inductors |
| Type | Wirewound | Wirewound | Wirewound |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Current Rating | 800mA | 820mA | 2.15A |
| Termination Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Height | 2.8 mm | 2.8 mm | 2.8 mm |
| Length | 4.8 mm | 4.8 mm | 4.8 mm |
| Width | 4.8 mm | 4.8 mm | 4.8 mm |
| Package Case | Nonstandard | Nonstandard | Nonstandard |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Size Dimension | 0.189" L x 0.189" W (4.80mm x 4.80mm) | 0.189" L x 0.189" W (4.80mm x 4.80mm) | 0.189" L x 0.189" W (4.80mm x 4.80mm) |
| Tolerance | ±30% | ±30% | ±30% |
| Height Seated Max | 0.118" (3.00mm) | 0.118" (3.00mm) | 0.118" (3.00mm) |
| Ratings | - | - | - |
| Shielding | Shielded | Shielded | Shielded |
| Inductance | 39μH | 33μH | 3.3μH |
| DC Resistance DCR | 250 mOhm Max | 230 mOhm Max | 35 mOhm Max |
| Material Core | Ferrite | Ferrite | Ferrite |
| Current Saturation | 500mA | 580mA | 1.65A |
| Q Freq | 9.74 @ 2.52MHz | 9.7 @ 2.52MHz | 7.72 @ 7.96MHz |
| Frequency Self Resonant | 14MHz | 16MHz | 76MHz |
| Frequency Test | 100kHz | 100kHz | 100kHz |
| Maximum DC Current | 800 mA | 820 mA | 2.15 A |
| Maximum DC Resistance | 384 mOhms | 378 mOhms | 49 mOhms |