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Analog Devices MAX6378XR46+ — Discrete Semiconductors

MAX6378XR46+ Voltage Detector, 4.63V Threshold, SC-70

MPNMAX6378XR46+
End of Life

Analog Devices MAX6378XR46+ Voltage Detector, 3-pin ultra-low-power, Active Low Reset, Push-Pull Output, 4.63V Threshold, SC-70-3, Surface Mount.

$2.74Ref. price · indicative, final on quote
PackagingSC-70, SOT-323
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX6378XR46+ specifications
ParameterValue
TypeVoltage Detector
MountingSurface Mount
Voltage - threshold4.63V
Number of voltages monitored1
Operating temperature-40°C ~ 85°C (TA)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageBulk
CaseSC-70, SOT-323

Product details

What the 4.63V threshold means for your rail

The MAX6378XR46+ is a single-channel voltage detector with a 4.63V threshold — this is the voltage at which the device asserts a reset when the monitored supply drops below that level. For a 5V rail, this threshold sits in the typical undervoltage region, catching brownout conditions before the downstream logic enters an undefined state. The output drives directly into the reset input of a microcontroller or FPGA, saving a resistor and one BOM line.

Package and temperature grade for the BOM

Housed in a 3-lead SC-70 (SOT-323 footprint), the MAX6378XR46+ is a surface-mount device occupying minimal board area. The supplier device package is SC-70-3 — a common, widely second-sourced footprint that fits standard pick-and-place without special handling.

Frequently asked questions

What is the reset polarity and output type of MAX6378XR46+?

The reset is active low, and the output is push-pull (totem pole). This means the RST pin goes low when the monitored voltage falls below the 4.63V threshold, and it drives high when the supply is good — no external pull-up resistor is required.