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Analog Devices MAX6845UKD3+T — Analog & Data Acquisition

MAX6845UKD3+T Simple Reset/Power-On Reset, Active Low

MPNMAX6845UKD3+T
End of Life

Maxim Integrated MAX6845UKD3+T, Simple Reset/Power-On Reset, Active Low, Open Drain or Open Collector, 140ms Minimum Reset Timeout, SOT-23-5, -40°C to 85°C.

$4.26Ref. price · indicative, final on quote
PackagingSC-74A, SOT-753
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX6845UKD3+T specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - thresholdAdjustable/Selectable
Number of voltages monitored1
Operating temperature-40°C ~ 85°C (TA)
ResetActive Low
OutputOpen Drain or Open Collector
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout140ms Minimum
CaseSC-74A, SOT-753

Product details

The Maxim Integrated MAX6845UKD3+T is a single-channel voltage supervisor in a SOT-23-5 package. It monitors a single supply rail and asserts a reset signal when the voltage drops below a threshold, holding the reset active for a minimum of 140 ms after the supply recovers. The open-drain output lets you wire-OR it with other reset sources or pull it up to a different logic voltage.

Package and rework considerations

The SOT-23-5 package is straightforward to hand-solder and rework. The small footprint and low thermal mass mean it reflows cleanly with a standard hot-air profile.

The MAX6845UKD3+T is listed as Active on the manufacturer's lifecycle status, with ROHS3 compliance.

Frequently asked questions

Is MAX6845UKD3+T obsolete?

No, the MAX6845UKD3+T is listed as Active on the manufacturer's lifecycle status with no end-of-life notice.

Does MAX6845UKD3+T have an open drain output?

Yes, the output is open drain or open collector, which allows it to be pulled up to a different voltage or wire-ORed with other open-drain signals.

What is the reset timeout of MAX6845UKD3+T?

The reset timeout is a minimum of 140 ms, ensuring the processor is held in reset long enough for the supply to stabilize after a brownout or power-up.