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ROHM Semiconductor EMX1T2R — Memory (DRAM / SRAM / Flash / EEPROM)

ROHM EMX1T2R Dual NPN Transistor, 50V 150mA 180MHz SOT-563

MPNEMX1T2R
End of Life

ROHM EMX1T2R dual NPN transistor, 50V VCEO, 150mA IC(max), 180MHz transition frequency, 150mW power dissipation, SOT-563/SOT-666 surface-mount package, 150°C junction temperature.

$0.41Ref. price · indicative, final on quote
PackagingSOT-563, SOT-666
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

EMX1T2R specifications
ParameterValue
MountingSurface Mount
FET type2 NPN (Dual)
Voltage - collector emitter breakdown50V
Current - collector (Ic)150mA
Current - collector cutoff100nA (ICBO)
DC current gain (hFE) (Min) @ ic, vce120 @ 1mA, 6V
Power - max150mW
Frequency - transition180MHz
Operating temperature150°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
CaseSOT-563, SOT-666
Vce saturation (Max) @ ib, ic400mV @ 5mA, 50mA

Product details

50 V / 150 mA dual NPN — small-signal switching pair in a 1.6 mm² footprint

The 180 MHz transition frequency gives it enough speed for PWM frequencies up to a few megahertz and for level translation in digital interfaces.

150°C junction — thermally rated for tight enclosures

The EMX1T2R is rated for a maximum junction temperature of 150°C, which means it can sit in a warm ambient — inside a motor drive housing, near a power supply, or in an outdoor telecom node — without derating the collector current. The 150 mW power dissipation ceiling is the package limit; at 150 mA continuous you'll be below that, but if both transistors are conducting simultaneously, the thermal budget needs a quick check against the SOA curve in the datasheet.

ROHS3 compliance is confirmed, which covers the latest EU exemption updates.

Frequently asked questions

What is a direct replacement for EMX1T2R?

The closest functional alternative within the same family is the EMT1T2R, which is a dual PNP transistor with similar 50 V / 150 mA ratings and a 140 MHz transition frequency. For an NPN/PNP complementary pair, the EMZ1T2R combines one NPN and one PNP in the same package. Neither is a pin-for-pin drop-in — verify the transistor polarity and pinout against your PCB layout.

Is EMX1T2R RoHS compliant?

Yes, the EMX1T2R is ROHS3 compliant, covering the latest RoHS exemption categories.