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Toshiba Semiconductor RN2109,LF(CT — Interface & Transceivers

RN2109,LF(CT PNP Pre-Biased Transistor, 50V, 100 mA

MPNRN2109,LF(CT
End of Life

Toshiba RN2109,LF(CT PNP pre-biased transistor, 50 V collector-emitter breakdown, 100 mA collector current, 200 MHz transition frequency, SC-75 / SOT-416 surface-mount package.

$0.2Ref. price · indicative, final on quote
Toshiba Semiconductor RN2109,LF(CT datasheet (PDF)
PackagingSC-75, SOT-416
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

RN2109,LF(CT specifications
ParameterValue
MountingSurface Mount
FET typePNP - Pre-Biased
Voltage - collector emitter breakdown50 V
Current - collector (Ic)100 mA
Current - collector cutoff500nA
DC current gain (hFE) (Min) @ ic, vce70 @ 10mA, 5V
Power - max100 mW
Frequency200 MHz
PackageTape & Reel (TR); Cut Tape (CT)
CaseSC-75, SOT-416
Resistor - base (R1)47 kOhms
Resistor - emitter base (R2)22 kOhms
Vce saturation (Max) @ ib, ic300mV @ 250µA, 5mA

Product details

Built-in bias resistors shrink the BOM

The RN2109,LF(CT: The RN2109 is a PNP pre-biased transistor that integrates a 47 kΩ base resistor (R1) and a 22 kΩ emitter-base resistor (R2) inside the same SC-75 / SOT-416 package. That means you drop two external resistors from the board — handy when you're squeezing a switch or a driver into a tight layout. The 100 mA collector current rating and 50 V breakdown cover typical low-side switching in portable gear, sensor interfaces, or logic-level level shifters where you need to pull a line low.

SC-75 rework — small but doable

The SC-75 (SOT-416) is a three-lead package. The leads are visible and the pad pitch is generous compared to a QFN.

Active and RoHS3 compliant

Toshiba lists the RN2109 as an active product with ROHS3 compliance. The LF suffix in the order code confirms lead-free / RoHS3 finish — no separate qualification paperwork needed for EU or similar markets.

Frequently asked questions

What is the collector current rating of RN2109?

The maximum collector current (Ic) is 100 mA. That's the continuous DC limit — stay under it for switching or amplification in low-power circuits.

What are the built-in resistor values for RN2109?

The base resistor (R1) is 47 kΩ and the emitter-base resistor (R2) is 22 kΩ. These bias the transistor so you don't need external resistors for typical switch or driver applications.

Is RN2109 RoHS compliant?

Yes, it is ROHS3 compliant per Toshiba's lifecycle status. The LF in the order code confirms lead-free / RoHS3 finish.