AS431ANTR-E1

Overview

The AS431ANTR-E1 is a three-terminal adjustable precision shunt regulator manufactured by Diodes Incorporated. It provides programmable output voltage from 2.5V to 36V with an initial accuracy of 0.5%. The device operates within a cathode current range of 1mA to 100mA and features a typical temperature coefficient of 20PPM/°C. It is housed in a SOT-23 package and supports an operating ambient temperature range from -40°C to +125°C.

Feature Summary

• Programmable precise output voltage ranging from 2.5V to 36V
• Guaranteed thermal stability over the full operation range
• Sharp turn-on characteristics with low output impedance
• High stability under capacitive load conditions

Applications

• Switching power supply
• Charger
• Voltage adapter
• Graphic card
• Precision voltage reference

Procurement Notes

Verify component authenticity through authorized channels. Confirm RoHS compliance status for environmental requirements. Ensure proper handling procedures are followed due to moisture sensitivity classification. Validate that the specific ordering suffix matches the required tolerance and packaging specifications before finalizing procurement orders.

Selection Notes

Select this component when a high-precision adjustable shunt regulator is required. The 0.5% voltage tolerance suits applications demanding tight regulation accuracy. Consider the SOT-23 package size for space-constrained designs. Verify that the maximum cathode voltage rating aligns with the system's operational limits.

Part Context

This part belongs to the AS431 family of adjustable precision shunt regulators. It serves as a direct replacement for standard Zener diodes in various circuit topologies. The series offers multiple package options including SOT-23, SOT25, and SOT89 to accommodate different board layout requirements.

Replacement Considerations

AS431ANTR-G1 is listed as an alternative variant.