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Analog Devices DS1819AR-5+T&R — Analog & Data Acquisition

DS1819AR-5+T&R Simple Reset/Power-On Reset, 3.075V Threshold

MPNDS1819AR-5+T&R
End of Life

Maxim Integrated MicroMonitor™ series, DS1819AR-5+T&R, Type Simple Reset/Power-On Reset, Reset Active Low, Output Push-Pull/Totem Pole, Voltage Threshold 3.075V, Reset Timeout 140ms Min, Operating Temperature -40°C to 85°C, Package SOT-23-5.

$5.97Ref. price · indicative, final on quote
PackagingSC-74A, SOT-753
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.
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Specifications

DS1819AR-5+T&R Technical Specifications
ParameterValue
TypeSimple Reset/Power-On Reset
SeriesMicroMonitor™
Mounting typeSurface Mount
Voltage - threshold3.075V
Number of voltages monitored1
Operating temperature-40°C ~ 85°C (TA)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout140ms Minimum
CaseSC-74A, SOT-753

Product details

140ms reset timeout — timing for the system

The 140ms minimum reset timeout holds the processor in reset long enough for the oscillator to stabilise and for the supply to settle after power-up. That duration is typical for many MCUs and SoCs; if your part needs a longer or shorter delay, the timeout here is fixed and not adjustable. For designs that need a custom delay, a supervisor with an external timing capacitor would be the alternative.

Industrial temperature range

Rated for -40°C to 85°C ambient, this supervisor suits factory automation, outdoor telecom enclosures, and other environments where the board sees seasonal or process heat. The SOT-23-5 package is small enough to place close to the monitored rail without crowding the layout.

Frequently asked questions

What is the reset timeout for DS1819AR-5+T&R?

The reset timeout is a minimum of 140ms after the supply rail rises above the 3.075V threshold. This fixed delay covers typical MCU power-up settling.

What is the equivalent or replacement for DS1819AR-5+T&R?

The DS1819AR-5+T&R is an active part with no official successor listed. For a second source, look for pin-compatible supervisors from other vendors with the same SOT-23-5 footprint, 3.075V threshold, and active-low push-pull output — but confirm the reset timeout matches your timing budget.

What is DS1819AR-5+T&R's listed type?

It is a Simple Reset/Power-On Reset supervisor. It monitors a single voltage rail and asserts a reset signal during power-up and brownout conditions.