NPN Epitaxial Planar Silicon Composite Transistor Switching Applications (with Bias Resistance) The part FC138 is manufactured by SANYO. It is a semiconductor device, specifically a voltage regulator IC. Key specifications include:

- **Input Voltage Range:** Up to 35V  
- **Output Voltage:** Fixed 5V  
- **Output Current:** 1A  
- **Package Type:** TO-220  
- **Operating Temperature Range:** -30°C to +80°C  
- **Features:** Overcurrent protection, thermal shutdown  

These are the confirmed specifications for the SANYO FC138 voltage regulator.