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LM431ACZ/LFT4 is listed in the Voltage Reference range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC VREF SHUNT ADJ 2.2% TO92-3. Review the specifications below when checking this part for your BOM.
Voltage Reference specifications for LM431ACZ/LFT4
- Description：IC VREF SHUNT ADJ 2.2% TO92-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.495V
- Voltage - Output (Max)：37 V
- Current - Output：100 mA
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
Voltage Reference datasheet and documents for LM431ACZ/LFT4
Voltage Reference Overview
The LM431ACZ/LFT4 is an adjustable precision shunt voltage reference manufactured by Texas Instruments. It operates within a cathode voltage range of 2.495 V to 37 V and provides an initial accuracy of 2%. The device features a temperature coefficient of 97 ppm/°C and supports a maximum shunt current of 100 mA. It functions across a temperature range from -40°C to +85°C and utilizes a TO-92-3 through-hole package.
Voltage Reference Feature Summary
- Provides adjustable output voltage via external resistor divider
- Ensures stable regulation with low temperature drift characteristics
- Supports high cathode current capacity for robust load handling
Voltage Reference Applications
- Precision voltage references in power supply circuits
- Programmable linear regulators
- Battery-operated equipment requiring accurate monitoring
Voltage Reference Procurement Notes
Verify the specific suffix LFT4 against the manufacturer's official datasheet to confirm packaging details and RoHS compliance status. Ensure the ordering part number matches the required tolerance grade and package type for your design implementation.
Voltage Reference Selection Notes
Select this component when a through-hole adjustable reference with 2% initial accuracy is required. Consider the 97 ppm/°C temperature coefficient for thermal stability needs. Verify that the TO-92-3 package fits the PCB layout constraints and that the 100 mA current rating meets circuit demands.
Voltage Reference Part Context
This device belongs to the LM431 series of adjustable shunt regulators. It serves as a versatile reference element in analog and mixed-signal circuits, offering a cost-effective solution for voltage regulation tasks where moderate precision and through-hole mounting are preferred over surface-mount alternatives.
Voltage Reference Replacement Considerations
Direct substitutes include LM431ACM/NOPB (SOIC-8) and LM431BIM3X/NOPB (SOT-23-3). Verify pin compatibility and package dimensions before substitution.
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