TL431CZ-AP

$0.21

Description：IC VREF SHUNT ADJ 2.21% TO92-3
Series：-
Mfr：STMicroelectronics
Package：Cut Tape (CT),Tape & Box (TB)

SKU:4d7c160824e9 Category: Voltage Reference Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 2.21% TO92-3
Series：-
Mfr：STMicroelectronics
Package：Cut Tape (CT),Tape & Box (TB)
Output Type：Adjustable
Voltage - Output (Min/Fixed)：2.495V
Voltage - Output (Max)：36 V
Current - Output：100 mA
Operating Temperature：0°C ~ 70°C (TA)
Mounting Type：Through Hole
Package / Case：TO-226-2, TO-92-2 (TO-226AC) Formed Leads
Supplier Device Package：TO-92-3
Grade：-
Qualification：-

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TL431CZ-AP

Overview

The TL431CZ-AP is an adjustable shunt voltage reference from STMicroelectronics, part of the TL431 series. It operates within a cathode voltage range of 2.5 V to 36 V and supports a sink current capability from 1 mA to 100 mA. The device features a typical dynamic impedance of 0.22 Ω and is housed in a TO-92-3 (TO-226AA) through-hole package. Initial voltage precision is specified at ±2.21%, with an operating temperature range of 0°C to +70°C.

Feature Summary

Adjustable output voltage settable between 2.5 V and 36 V using two external resistors
Wide operating current range supporting sink currents from 1 mA to 100 mA
Low typical dynamic output impedance for stable regulation

Applications

Precision voltage references in power supply circuits
Programmable linear regulators
Comparator reference voltage sources

Procurement Notes

Verify the specific suffix AP against the manufacturer datasheet to confirm package and tolerance specifications. Ensure the selected variant meets the required thermal and electrical constraints for the target application environment. Cross-reference ordering information with official STMicroelectronics documentation to avoid discrepancies.

Selection Notes

Select this component when an adjustable shunt reference is required in a TO-92 package. Consider the ±2.21% initial precision and 0°C to +70°C operating range. Verify that the 1 mA minimum cathode current requirement aligns with the circuit design. Compare against other TL431 variants if tighter tolerance or extended temperature ranges are needed.

Part Context

The TL431CZ-AP belongs to the widely used TL431 family of programmable shunt voltage references. These devices serve as low-cost alternatives to Zener diodes, offering superior accuracy and temperature stability. The TL431 series is commonly integrated into feedback loops for switching regulators and linear power supplies.