SC431AVSNT1G

$0.83

Description：IC VREF SHUNT ADJ 1% SOT23-3
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:cfdce5944f2b Category: Voltage Reference Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 1% SOT23-3
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Adjustable
Voltage - Output (Min/Fixed)：2.5V
Voltage - Output (Max)：36 V
Current - Output：40 µA
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SOT-23-3 (TO-236)
Grade：Automotive
Qualification：AEC-Q100

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SC431AVSNT1G

Overview

The SC431AVSNT1G is a three-terminal programmable shunt regulator diode from the NCP431 series, manufactured by onsemi. It operates as a low temperature coefficient zener, programmable from Vref to 36 V using two external resistors. The device features an adjustable reference voltage with a typical tolerance of ±1% at 25°C and a full-range temperature coefficient of 50 ppm/°C. It supports a cathode current range of 40 µA to 100 mA with a typical dynamic impedance of 0.22 Ω. Qualified under AEC-Q100 standards, it functions within an ambient temperature range of -40°C to +125°C and is housed in a SOT-23-3 package.

Feature Summary

Programmable output voltage capability up to 36 V using external resistors
AEC-Q100 qualified for automotive applications requiring unique site and control change requirements
Low minimum operating current suitable for secondary regulators with extremely low no-load consumption
Temperature compensated operation across the full rated operating temperature range

Applications

Voltage adapters
Switching power supplies
Precision voltage references
Chargers
Instrumentation

Procurement Notes

Verify that the specific ordering suffix matches the required temperature grade and package type. Confirm AEC-Q100 qualification status if automotive PPAP capabilities are necessary for the application. Ensure the selected variant aligns with the intended operating temperature range and accuracy specifications defined in the official datasheet.

Selection Notes

Select this component when a precision shunt reference with wide temperature stability is required. The SC prefix indicates suitability for automotive environments with strict supply chain controls. Consider the low minimum operating current for designs prioritizing minimal standby power consumption in secondary side regulation circuits.

Part Context

This part belongs to the NCP431/NCP432 family of programmable precision references. These monolithic ICs serve as replacements for Zener diodes in digital voltmeters and op-amp circuitry. The series offers convenient stable reference generation from 5.0 V logic supplies and can function as either positive or negative voltage references due to its shunt regulator topology.