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Analog Devices MAX821TUS — Discrete Semiconductors
Analog Devices

MAX821TUS Simple Reset/Power-On Reset, 3.08V Threshold

MPNMAX821TUS
End of Life

Maxim Integrated MAX821TUS, Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 3.08V Threshold, Adjustable Timeout, SOT-143-4, -40°C to 125°C.

$2.78Ref. price · indicative, final on quote
MAX821TUS datasheet
PackagingTO-253-4, TO-253AA
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

MAX821TUS Technical Specifications
ParameterValue
TypeSimple Reset/Power-On Reset
Mounting typeSurface Mount
Voltage - threshold3.08V
Number of voltages monitored1
Operating temperature-40°C ~ 125°C (TA)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageBulk
Reset timeoutAdjustable/Selectable
CaseTO-253-4, TO-253AA

Product details

What this supervisor does and where it fits

Rated for the -40°C to 125°C operating temperature range, this part suits industrial motor drives, automotive under-hood modules, outdoor telecom gear, and any environment where the electronics see wide thermal swings. The SOT-143-4 surface-mount package keeps the footprint small.

Active production and sourcing reality

The MAX821TUS carries an active lifecycle status from Maxim Integrated, so there is no end-of-life risk for current production runs or new designs. It is RoHS non-compliant, which matters for EU markets or any BOM with a RoHS-only mandate — verify your assembly's exemption or plan for a lead-free alternative if needed.

Frequently asked questions

What is the MAX821TUS reset threshold voltage?

The reset threshold is 3.08V, making it a fit for monitoring a nominal 3.3V supply rail. The output goes active low when the supply drops below this level.

What package does the MAX821TUS come in?

It is supplied in an SOT-143-4 surface-mount package (also referred to as TO-253-4 or TO-253AA). The small footprint suits dense PCB layouts.

Is the MAX821TUS RoHS compliant?

No, the MAX821TUS is listed as RoHS non-compliant. If your assembly requires RoHS compliance, check for an exemption or consider a lead-free alternative.