TLV431BH6TA

Overview

The TLV431BH6TA is a three-terminal adjustable shunt regulator manufactured by Diodes Incorporated, housed in an SC70-6 (SOT363) package. It provides a reference voltage of 1.24V with an initial tolerance of 0.5%. The device operates within a cathode voltage range from VREF to 18V and supports a continuous cathode current up to 20mA. It functions across an ambient temperature range of -40°C to +125°C, featuring low operating current and high temperature stability suitable for precision applications.

Feature Summary

• Adjustable output voltage capability ranging from the internal reference level up to 18V via external resistors
• High temperature stability with specified drift characteristics across wide thermal ranges
• Low minimum cathode current requirement for efficient regulation at light loads
• Totally lead-free and fully RoHS compliant construction

Applications

• Secondary side regulated supplies in isolated power converters
• Replacing zener diodes where improved performance is required
• Increasing output voltage of fixed linear regulators
• Battery operated equipment requiring precise voltage monitoring

Procurement Notes

Verify the specific ordering suffix H6 corresponds to the SC70-6 package configuration when sourcing. Confirm that the B grade designation matches the required 0.5% initial tolerance for your circuit design. Ensure compatibility with surface mount assembly processes given the small outline footprint. Check for any automotive compliance requirements if the application demands AEC-Q100 qualification, as standard parts may differ from qualified variants.

Selection Notes

Select this component when a compact surface-mount solution is needed for precision shunt regulation. The SC70-6 package offers space savings compared to larger alternatives while maintaining electrical performance. Consider the 0.5% tolerance grade if tighter accuracy than standard 1% parts is necessary without moving to higher cost grades. Evaluate thermal dissipation capabilities based on the specific PCB layout and ambient conditions.

Part Context

This part belongs to the TLV431 family of low-voltage adjustable precision shunt regulators. The family includes variants with different tolerances such as the 1% A grade and 0.2% T grade. Other package options include SOT23 and SOT25. The series is designed to offer cost-effective solutions for voltage reference and regulation tasks in various consumer and industrial electronics.

Replacement Considerations

Direct pin-compatible replacements within the same family include TLV431AH6TA for 1% tolerance or TLV431TH6TA for 0.2% tolerance. Cross-manufacturer equivalents like the TLVH431 series may require verification of dynamic impedance and current handling specifications.