Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp. The part HA17431PA is manufactured by HITA. Below are the specifications based on Ic-phoenix technical data files:

- **Manufacturer:** HITA  
- **Part Number:** HA17431PA  
- **Type:** Programmable Shunt Regulator  
- **Package:** TO-92  
- **Voltage Reference:** 2.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Output Current:** Up to 100mA  
- **Tolerance:** ±1% (typical)  
- **Applications:** Voltage regulation, switching power supplies, precision current limiting  

For further technical details, refer to the official datasheet from HITA.