| PartNumber | MF-R300-0-99 | MF-R300 | MF-R300-2 |
| Description | Resettable Fuses - PPTC 3A 30V | Resettable Fuses - PPTC 30v Max 40Amps Max Hold 3.0 Trip 6.0 | Resettable Fuses - PPTC 3A 30V 0.02ohm Hold 3.0 Trip 6.0 |
| Manufacturer | Bourns | Bourns | Bourns Inc. |
| Product Category | Resettable Fuses - PPTC | Resettable Fuses - PPTC | PTC Resettable Fuses |
| RoHS | Y | Y | - |
| Series | MF-R | MF-R | MF-R |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Termination Style | Radial | Radial | Radial |
| Hold Current | 3 A | 3 A | 3 A |
| Maximum Voltage | 30 VDC | 30 VDC | 30 VDC |
| Trip Current | 6 A | 6 A | 6 A |
| Current Rating Max | 40 A | 40 A | - |
| Resistance | 50 mOhms | 50 mOhms | 0.05 Ohms |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Lead Spacing | 5.1 mm | 5.1 mm | 5.1 mm |
| Packaging | Bulk | Bulk | Cut Tape (CT) Alternate Packaging |
| Height | 3 mm | 3 mm | 3 mm |
| Length | 18.3 mm | 18.3 mm | 18.3 mm |
| Type | PTC Resettable Fuses | PTC Resettable Fuses | PTC Resettable Fuses |
| Width | 12 mm | 12 mm | 12 mm |
| Brand | Bourns | Bourns | - |
| Pd Power Dissipation | 2 W | 2 W | - |
| Product Type | Resettable Fuses - PPTC | Resettable Fuses - PPTC | - |
| Factory Pack Quantity | 3000 | 3000 | - |
| Subcategory | PPTC Resettable Fuses | PPTC Resettable Fuses | - |
| Tradename | Multifuse | Multifuse | Multifuse |
| Part # Aliases | MF-R300 | MF-R300-0-99 | - |
| Unit Weight | 0.003988 oz | 0.003988 oz | - |
| Part Aliases | - | - | MF-R300-2-99 |
| Operating Temperature Range | - | - | - 40 C to + 85 C |
| Package Case | - | - | Radial, Disc |
| Current Max | - | - | 40A |
| Current Hold Ih Max | - | - | 3A |
| Voltage Max | - | - | 30V |
| Current Trip It | - | - | 6A |
| R Min Max | - | - | 0.020 ~ 0.050 Ohm |
| Time to Trip | - | - | 10.8s |
| Current Rating Max | - | - | 40 A |
| Pd Power Dissipation | - | - | 2 W |