S-19502AFJA-V9T1U4

Supervisors Overview

The S-19502AFJA-V9T1U4 is a fixed-output automotive linear regulator manufactured by ABLIC. It provides a stable 5 V output with a maximum current capability of 400 mA. The device operates within an input voltage range up to 36 V and features a typical dropout voltage of 240 mV. It incorporates a built-in watchdog timer and reset function for system protection. The unit is housed in a TO-252-9S surface-mount package, ensuring reliable operation across an extended temperature range from -40 °C to +125 °C.

Supervisors Feature Summary

• Integrated watchdog timer and reset function for enhanced system reliability
• High ripple rejection ratio for effective noise suppression
• Automotive-grade qualification suitable for safety-critical applications

Supervisors Applications

• Engine control units (ECUs)
• Traction inverters
• Safety-critical automotive electronic modules

Supervisors Procurement Notes

Verify the specific suffix codes against official documentation to confirm pinout and functional configuration. Confirm RoHS compliance status and ensure the TO-252-9S package matches your PCB footprint requirements. Validate that the 36 V input rating aligns with your system's electrical environment before finalizing procurement.

Supervisors Selection Notes

Select this component when a fixed 5 V supply is required alongside integrated fault protection mechanisms. The 400 mA output current supports moderate load demands while maintaining low dropout characteristics. Ensure the application benefits from the built-in watchdog timer to monitor system health without requiring external monitoring circuitry.

Supervisors Part Context

This part belongs to the S-19502 series, which are automotive linear regulators featuring built-in watchdog timers and reset functions. These devices are designed for high-reliability environments, offering robust performance under varying thermal conditions. The series is specifically engineered to meet the stringent quality standards required for modern automotive electronics.

Supervisors Replacement Considerations

Consult official substitution lists for compatible parts within the S-19502 family or equivalent automotive LDOs with matching pinouts and electrical specifications.