The Riedon UB-12 is a through-hole wirewound resistor with a resistance value of 22.1 ohms and a tolerance of 5%. It features a max voltage rating of 607 volts and operates within a temperature range of -55C to 250C. The resistor is mounted through a hole and has a lead length of 25.4mm and a lead diameter of 1mm. It is constructed with a silicone case style and is not a fail-safe fusible resistor.
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| Mounting | Through Hole |
| Termination Style | Axial |
| Product Length (mm) | 31 |
| Product Diameter (mm) | 7.9 |
| Number of Terminals | 2 |
| Lead Diameter (mm) | 1 |
| Lead Length (mm) | 25.4 |
| Resistance Value | 22.1Ohm |
| Tolerance | 5% |
| Max Voltage Rating | 607V |
| Technology | Wirewound |
| Min Operating Temperature | -55°C |
| Max Operating Temperature | 250°C |
| Case Style | Silicone |
| Fail Safe Fusible Resistor | No |
| Cage Code | 1RST4 |
| EU RoHS | Yes |
| HTS Code | 8533210080 |
| Schedule B | 8533210080 |
| ECCN | EAR99 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| RoHS Versions | 2011/65/EU, 2015/863 |
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