The Bourns 2057-47-BT1LF is a 2-terminal PTC resettable fuse with axial termination style. It has a maximum impulse sparkover voltage of 900V at 100V/s and a maximum DC holdover voltage of 150V. The fuse has a typical impulse discharge current of 5A and a maximum capacitance of 1pF at 1MHz. It is designed for operation between -40°C and 90°C.
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| Mounting | Through Hole |
| Termination Style | Axial |
| Number of Terminals | 2 |
| Lead Diameter (mm) | 0.8 |
| Product Length (mm) | 6 |
| Product Diameter (mm) | 5.5 |
| DC Sparkover Voltage Tolerance | ±20% |
| Maximum Impulse Sparkover Voltage @ 100V/s | 900V |
| Maximum DC Holdover Voltage | 150@150msV |
| Typical Impulse Discharge Current @ 8/20us @ 10Times | 5kA |
| Number of Electrodes | 2 |
| Min Operating Temperature | -40°C |
| Max Operating Temperature | 90°C |
| Maximum Capacitance @ 1MHz | 1pF |
| Typical DC Sparkover Voltage @ 100V/s | 470V |
| Cage Code | 32997 |
| EU RoHS | Yes |
| HTS Code | 8536308000 |
| Schedule B | 8536300000 |
| ECCN | EAR99 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| RoHS Versions | 2011/65/EU, 2015/863 |
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