VOLTAGE DETECTOR The part AZ7031Z-E1 is manufactured by BCD. Here are the specifications from Ic-phoenix technical data files:  

- **Manufacturer:** BCD  
- **Part Number:** AZ7031Z-E1  
- **Type:** Voltage Regulator  
- **Output Voltage:** 3.3V  
- **Output Current:** 1A  
- **Input Voltage Range:** 4.5V to 18V  
- **Package:** TO-252 (DPAK)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Features:** Overcurrent protection, thermal shutdown, adjustable output (with external resistors)  

No additional details or recommendations are provided.