Skip to main content
Log in
Infineon Technologies BCR148E6433HTMA1 — Discrete Semiconductors

BCR148E6433HTMA1 Infineon NPN Pre-Biased Transistor, 50 V

MPNBCR148E6433HTMA1
Obsolete

Infineon BCR148E6433HTMA1 NPN pre-biased transistor, 50 V collector-emitter breakdown, 100 mA collector current, 47 kΩ base and emitter resistors, 100 MHz transition frequency, SOT-23 surface-mount package, 200 mW power dissipation.

$0.1300Ref. price · indicative, final on quote
Infineon Technologies BCR148E6433HTMA1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BCR148E6433HTMA1 specifications
ParameterValue
MountingSurface Mount
FET typeNPN - 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 - max200 mW
Frequency - transition100 MHz
PackageTape & Reel (TR)
CaseTO-236-3, SC-59, SOT-23-3
Resistor - base (R1)47 kOhms
Resistor - emitter base (R2)47 kOhms
Vce saturation (Max) @ ib, ic300mV @ 500µA, 10mA

Product details

Pre-biased NPN for space-constrained switching

The Infineon BCR148E6433HTMA1 is an NPN pre-biased transistor — a digital transistor that integrates two 47 kOhm resistors (R1 and R2) in a single SOT-23 package. This eliminates two external passives from the board, saving placement cost and PCB area in simple switching applications like relay drivers, LED indicators, or logic-level interface circuits.

50 V breakdown, 100 mA collector — typical low-side switch

The 300 mV saturation voltage at 10 mA collector current and 500 µA base drive means it switches cleanly into saturation with minimal dissipation in the on-state.

Sourcing an obsolete part — what to expect

Infineon lists the BCR148E6433HTMA1 as Obsolete.

Frequently asked questions

What is the replacement for BCR148E6433HTMA1?

Infineon has not published a direct successor order code for the BCR148E6433HTMA1. A current-production pre-biased NPN in SOT-23 with similar 47 kOhm resistors and 50 V / 100 mA ratings may be functionally equivalent, but the pinout and electrical characteristics should be verified against the original design.

BCR148E6433HTMA1 vs BCR148 — are they the same?

The BCR148 is the base product number; the full order code BCR148E6433HTMA1 is a specific Infineon reel variant (Tape & Reel) of that base transistor. Electrically they are identical — same 47 kOhm resistors, same 50 V / 100 mA ratings. The suffix only affects packaging and shipping format.