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Infineon Technologies BCR158W — Discrete Semiconductors

BCR158W PNP Pre-Biased Transistor, 50 V, 100 mA, SC-70

MPNBCR158W
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Infineon BCR158W PNP pre-biased transistor, SC-70 / SOT-323 package, 50 V collector-emitter breakdown, 100 mA collector current, 250 mW power dissipation, 200 MHz transition frequency.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BCR158W specifications
ParameterValue
MountingSurface Mount
FET typePNP - Pre-Biased
Voltage - collector emitter breakdown50 V
Current - collector (Ic)100 mA
Current - collector cutoff100nA (ICBO)
DC current gain (hFE) (Min) @ ic, vce70 @ 5mA, 5V
Power - max250 mW
Frequency - transition200 MHz
PackageBulk
CaseSC-70, SOT-323
Resistor - base (R1)2.2 kOhms
Resistor - emitter base (R2)47 kOhms
Vce saturation (Max) @ ib, ic300mV @ 500µA, 10mA

Product details

PNP pre-biased transistor with integrated bias resistors

It integrates a 2.2 kΩ base resistor (R1) and a 47 kΩ base-emitter resistor (R2), eliminating the need for external biasing components in digital switching applications.

The 50 V VCEO breakdown gives headroom for switching 24 V or 48 V industrial loads, while the 100 mA continuous collector current handles small relays, LEDs, or logic-level interface signals. The 250 mW power limit in the SC-70 package means the device is suited for low-power auxiliary switching rather than output drivers — keep the load current and duty cycle within the thermal budget. The 200 MHz transition frequency is adequate for general-purpose switching up to several megahertz, but not for RF output stages.

Frequently asked questions

What is the base resistor value for BCR158W?

The integrated base resistor (R1) is 2.2 kΩ, and the base-emitter resistor (R2) is 47 kΩ.