STMicroelectronics Adjustable Shunt Voltage Reference 1.24V 1% 3-Pin SOT23-5, TS431AILT

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Subtotal (1 tape of 25 units)*

£6.075

(exc. VAT)

£7.30

(inc. VAT)

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  • 3,000 unit(s) shipping from 27 October 2025
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Units
Per unit
Per Tape*
25 - 75£0.243£6.08
100 - 225£0.231£5.78
250 - 475£0.214£5.35
500 - 975£0.196£4.90
1000 +£0.19£4.75

*price indicative

Packaging Options:
RS Stock No.:
151-869
Mfr. Part No.:
TS431AILT
Brand:
STMicroelectronics
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Brand

STMicroelectronics

Nominal Voltage

1.24V

Package Type

SOT23-5

Reference Type

Adjustable

Initial Accuracy

1%

Mounting Type

Surface Mount

Topology

Shunt

Pin Count

3

The STMicroelectronics Adjustable Shunt Voltage Reference features a output voltage that can be set to any value between Vref (1.24 V) and 6 V using two external resistors. It is able to operate at a lower voltage i.e. 1.24 V and lower cathode current than the widely used TL431 and TL1431 shunt voltage reference. When driving an optocoupler, it is particularly suitable for regulating 3.3 V switching power supplies.

AEC Q100 qualified
ESD protection
100 ppm/°C maximum temperature coefficient
Low output impedance of 0.2 Ω

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