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Analog Devices MAX6378UR44+T — DC-DC Power Modules
Analog Devices

MAX6378UR44+T Voltage Detector, 4.38V Threshold, SOT-23-3

MPNMAX6378UR44+T
End of Life

Maxim MAX6378UR44+T voltage detector, 1-channel supervisor, 4.38V threshold, active-low push-pull output, SOT-23-3 package, -40°C to 85°C operating temperature.

$2.62Ref. price · indicative, final on quote
MAX6378UR44+T datasheet
PackagingTO-236-3, SC-59, SOT-23-3
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

MAX6378UR44+T Technical Specifications
ParameterValue
TypeVoltage Detector
Mounting typeSurface Mount
Voltage - threshold4.38V
Number of voltages monitored1
Operating temperature-40°C ~ 85°C (TA)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-236-3, SC-59, SOT-23-3

Product details

Active-low, push-pull output — no external pull-up needed

The reset output is active-low (asserts low when the supply drops below threshold) and uses a push-pull (totem-pole) stage. That means it can both source and sink current, driving the reset pin of a CMOS or TTL logic input directly without an external pull-up resistor. This saves one component and one PCB trace. The output stays valid as long as the supply voltage is above about 1V, which covers the range where most logic devices hold their reset state.

Industrial temperature range and package

Rated for -40°C to 85°C ambient, this part handles factory-floor enclosures, outdoor telecom cabinets, and HVAC equipment without derating. The SOT-23-3 package is a three-lead surface-mount footprint that reflows easily and fits on tight layouts. Pin 1 identification is clear on the package body — important when hand-placing or reworking a board under a hot-air station.

Lifecycle and sourcing

The part is ROHS3 compliant.

Frequently asked questions

Is MAX6378UR44+T RoHS compliant or lead-free?

Yes, it is ROHS3 compliant, meeting the latest EU RoHS directive requirements.

What is the closest pin-compatible alternative to MAX6378UR44+T in this component family?

Within the same Maxim MAX6378 family, parts differ primarily by threshold voltage. The MAX6378UR44+T has a 4.38V threshold. Other variants in the same SOT-23-3 package offer thresholds like 2.63V, 2.93V, 3.08V, 4.63V, etc. — all are pin-compatible, so swapping to a different threshold requires no board layout change, only a BOM update.