Infineon Technologies BCR 141T E6327

Overview

BCR 141T E6327 from Infineon Technologies is an NPN silicon digital transistor with integrated bias resistors (R1 = R2 = 22 kΩ), designed for switching, inverter, interface, and driver circuits in compact consumer and industrial control applications. It features V_CEO = 50 V, I_C = 100 mA, V_CE(sat) ≤ 0.3 V at I_C = 10 mA / I_B = 0.5 mA, h_FE ≥ 50, and f_T = 130 MHz.

For engineers reviewing the BCR 141T E6327 datasheet, BCR 141T E6327 pinout, BCR 141T E6327 application, or BCR 141T E6327 equivalent, key selection criteria include built-in resistor matching, SOT-23 package thermal resistance (R_thJS ≤ 165 K/W), guaranteed V_i(on)/V_i(off) thresholds, and DC current gain stability across I_C = 0.1–10 mA.

Technical Context

This digital transistor integrates two precision-matched 22 kΩ bias resistors (R1/R2 ratio 0.9–1.1) to enable single-resistor logic-level interfacing without external components. Its common-emitter configuration supports direct microcontroller GPIO drive with defined turn-on/turn-off voltage thresholds.

The device operates as a saturated switch with guaranteed V_CE(sat) ≤ 0.3 V under 10 mA load and maintains h_FE ≥ 50 up to I_C = 5 mA, enabling predictable gain-controlled switching in low-power digital signal routing.

Key Specifications

Pinout & Package

BCR 141T E6327 uses the SOT-23 (TSFP-3) plastic surface-mount package with standard 3-pin layout and JEDEC-compliant footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital transistor applications.

Compared with BCR142T E6327, this part trades gain and saturation voltage for lower cost and broader availability; versus MMBT3904LT1G, it delivers plug-and-play logic interfacing at the expense of layout flexibility and peak frequency response.

Availability

BCR 141T E6327 is available at Aetrix Electronics and suitable for LED drivers, microcontroller GPIO expansion, relay driver stages, and logic-level signal inversion requiring stable component supply and long-term industrial sourcing.

Supply support for BCR 141T E6327 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and discrete devices with global manufacturing and quality certification.

BCR141T belongs to Infineon's digital transistor product line, engineered for simplified logic-level interfacing in space-constrained consumer and industrial control systems.

FAQ

What is the maximum operating temperature for BCR 141T E6327?

The junction temperature limit is 150°C, and the package is rated for solder-point temperature (T_S) up to 109°C. At T_S = 109°C, total power dissipation is derated to 250 mW. Thermal resistance from junction to solder point is ≤165 K/W, enabling accurate thermal modeling in PCB layouts with defined copper area.

Can BCR 141T E6327 replace a standard BJT like BC847 in switching applications?

Yes, but only when the circuit benefits from integrated biasing. Unlike BC847, BCR141T has built-in 22 kΩ R1/R2 resistors, eliminating external components. It is not a drop-in replacement if the original design relies on adjustable base current or different resistor values - verify V_i(on)/V_i(off) thresholds match your logic family.

Is the R1/R2 ratio tightly controlled for matched switching behavior?

Yes - the datasheet specifies R1/R2 = 0.9 to 1.1, ensuring symmetrical input characteristics critical for consistent turn-on/turn-off timing in buffered logic paths. This matching supports reliable operation across temperature and process variation without external trimming.

Does BCR 141T E6327 support PWM-driven loads such as dimmable LEDs?

Yes - with f_T = 130 MHz and V_CE(sat) ≤ 0.3 V, it supports PWM frequencies up to 20 kHz with minimal switching loss. Its fast turn-on/off times and low storage time enable efficient duty-cycle control in LED backlighting and status indication circuits.