A polymeric positive temperature coefficient device (PPTC, commonly known as a resettable fuse, poly fuse or poly switch) is a passive electronic component used to protect against over current faults in electronic circuits.
PPTC-SMD
Introduction
General specifications
- Voltage: 6Vdc to 60Vdc
- Hold Current_0.05Amp to 3.0Amp
- Trip Current_0.20Amp to 6.0Amp
- Initial resistance_0.012Ωto 2.00Ω
- Max. Power Dissipation_0.50Watt to 1.50Watt
Part numbering system
Example
| 1812 | SMD | 050 | /33 |
| ①~④ | ⑤~⑦ | ⑧~⑩ | ⑪~⑬ |
①~④
| Code | Size |
| 0603 | |
| 0805 | |
| 1206 | |
| 1210 | |
| 1812 | |
| 2920 | |
| Size | |
| 0603 | |
| 0805 | |
| 1206 | |
| 1210 |
⑤~⑦
| Code | Type |
| SMD | SMD type |
⑧~⑩
| Code | Hold Current (A) |
| 010 | 0.10 Amps |
| 160 | 1.60 Amps |
| 375 | 3.75 Amps |
⑪~⑬
| Code | Max Voltage |
| 33 | 33 Vmax |
| 24 | 24V max |
| 16 | 16V max |
| - | per spec. |
Download
| Name | |
|---|---|
| SMD Type PPTC |  PPTC-SMD_20231226.pdf |