ZTL432AFFTA

Overview

The ZTL432AFFTA is a three-terminal adjustable precision shunt regulator from Diodes Incorporated, packaged in SOT-23F. It offers an output voltage range of 2.5V to 20V and supports a continuous cathode current up to 100mA. The device features a reference voltage tolerance of 1% at +25°C and operates within an ambient temperature range of -40°C to +125°C.

Feature Summary

• Adjustable output voltage set between VREF and 20V using external resistors
• High temperature stability with specified reference voltage deviation over full range
• Low dynamic output impedance for stable regulation
• RoHS compliant and halogen-free green device

Applications

• Opto-coupler linearization
• Linear regulators
• Improved zener diode replacement
• Variable reference circuits

Procurement Notes

Verify the specific package type (SOT-23F) and initial accuracy grade (A grade, 1%) against design requirements. Confirm that the maximum operating voltage of 20V aligns with circuit constraints. Ensure thermal management meets the junction temperature limits during operation.

Selection Notes

Select this component when a cost-effective adjustable shunt regulator is needed with a maximum voltage limit of 20V. It serves as a functional equivalent to TL431/TL432 but requires attention to the distinct pinout configuration in the SOT-23F package compared to standard SOT-23 variants.

Part Context

This part belongs to the ZTL431/ZTL432 series of adjustable precision shunt regulators. The ZTL432 variant specifically utilizes a different pinout in SOT-23 and SOT-23F packages compared to the ZTL431, while maintaining identical electrical specifications regarding voltage and current handling capabilities.

Replacement Considerations

Functionally equivalent to TL431/TL432 except for maximum operation voltage. Verify pin compatibility if replacing standard TL432 devices due to the unique SOT-23F pin assignment.