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ROHM Semiconductor BD48E42G-MTR — Discrete Semiconductors
ROHM Semiconductor

ROHM BD48E42G-MTR Voltage Detector, AEC-Q100, 4.2V Threshold

MPNBD48E42G-MTR
End of Life

ROHM BD48Exx series, Voltage Detector, BD48E42G-MTR, 4.2V threshold, Active Low, Open Drain, SC-74A SOT-753, -40°C to 105°C, AEC-Q100.

$0.73Ref. price · indicative, final on quote
BD48E42G-MTR datasheet
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

BD48E42G-MTR Technical Specifications
ParameterValue
TypeVoltage Detector
SeriesAutomotive, AEC-Q100, BD48Exx
Mounting typeSurface Mount
Voltage - threshold4.2V
Number of voltages monitored1
Operating temperature-40°C ~ 105°C (TA)
ResetActive Low
OutputOpen Drain or Open Collector
PackageTape & Reel (TR); Cut Tape (CT)
CaseSC-74A, SOT-753

Product details

4.2V threshold, AEC-Q100 — what this voltage detector brings to the rail

The ROHM BD48E42G-MTR is a single-channel voltage detector from the automotive-grade BD48Exx series, monitoring a single supply rail with a 4.2V threshold. The active-low, open-drain output asserts when the monitored voltage drops below that threshold, and releases when it rises above the reset voltage (typically 4.2V plus hysteresis). The open-drain topology means the output requires an external pull-up resistor to the logic supply — the designer chooses the pull-up voltage independent of the monitored rail.

Temperature grade and package — fits under-hood and cabin ECU profiles

The SC-74A (SOT-753) package, also designated as 5-SSOP, is a 5-pin surface-mount footprint common across ROHM's voltage detector family. The small body saves board area but the 0.95 mm pitch is still hand-solderable for prototype rework.

Frequently asked questions

Is BD48E42G-MTR AEC-Q100 qualified?

Yes, the BD48E42G-MTR is part of the Automotive, AEC-Q100 series BD48Exx, confirming qualification for automotive-grade applications.

What is the closest functional equivalent to BD48E42G-MTR?

The BD45422G-TR is a functional peer from ROHM's BD45xxx series — same active-low, open-drain output, same -40°C to 105°C range, and same SC-74A package. The key difference is the threshold voltage: the BD45422G-TR has a 180 ms minimum reset timeout, whereas the BD48E42G-MTR does not list a timeout. Verify the timeout requirement in your design before substituting.