Infineon Technologies BCR 142T E6327

Overview

BCR 142T E6327 from Infineon Technologies is an NPN silicon digital transistor with integrated bias resistors (R1 = 22 kΩ, R2 = 47 kΩ), designed for switching, inverting, interfacing, and driver circuits. 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, f_T = 150 MHz, and operates in SOT-23 package for space-constrained logic-level interface applications in industrial control modules.

For engineers reviewing the BCR 142T E6327 datasheet, BCR 142T E6327 pinout, BCR 142T E6327 application, or BCR 142T E6327 equivalent, key selection criteria include input threshold voltage (V_i(on) = 0.8–2.5 V), saturation performance under 10 mA load, thermal resistance (R_thJS ≤ 165 K/W), and compatibility with 3.3 V/5 V logic-driven switching nodes.

Technical Context

This digital transistor integrates two on-chip resistors to enable direct connection to microcontroller GPIOs without external base biasing. Its common-emitter configuration supports fast switching with f_T = 150 MHz and low C_cb = 3 pF, making it suitable for high-speed digital signal routing.

The device uses a monolithic NPN structure with defined V_(BR)CEO = 50 V and V_(BR)CBO = 50 V, ensuring robustness against transient overvoltage in interface circuits. Thermal derating follows a fixed P_tot = 250 mW limit up to T_S = 109 °C, with R_thJS ≤ 165 K/W enabling reliable operation in compact PCB layouts.

Key Specifications

Pinout & Package

BCR 142T E6327 is housed in a standard SOT-23 (TSFP-3) plastic surface-mount package with gull-wing leads, optimized for automated assembly and thermal conduction via the collector pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR 142T E6327, BCR142E6327 offers identical performance in a functionally interchangeable package, while NSVD14201T1G trades 10 V voltage headroom and 50 mW power margin for lower cost-making it viable only in non-industrial, voltage-bounded applications.

Availability

BCR 142T E6327 is available at Aetrix Electronics and suitable for industrial HMI interfaces, microcontroller peripheral drivers, and LED control systems requiring stable component supply and long-term manufacturability.

Supply support for BCR 142T 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 (IATF 16949, ISO 9001).

The BCR series belongs to Infineon's digital transistor product line, engineered specifically for reducing bill-of-materials and PCB area in logic-level switching applications across industrial and consumer electronics.

FAQ

What is the maximum continuous collector current for BCR 142T E6327?

The absolute maximum continuous collector current is 100 mA at T_S ≤ 109 °C. Derating applies above this case temperature, and pulsed operation allows higher peak currents if duty cycle and pulse width remain within limits defined by the permissible pulse load curves in the datasheet.

Does BCR 142T E6327 require an external base resistor?

No. It integrates R1 = 22 kΩ and R2 = 47 kΩ internally, enabling direct connection to 3.3 V or 5 V logic outputs. External resistors are unnecessary unless specific gain adjustment or noise immunity enhancements are required beyond the built-in bias network.

Can BCR 142T E6327 replace a standard NPN transistor like BC847?

Only in switching applications where the internal bias network is acceptable. Unlike BC847, BCR 142T E6327 cannot be used in linear amplifier configurations due to its fixed resistor topology, and its V_i(off) = 0.5–1.2 V requires careful logic-level matching to avoid unintended turn-on.

What is the thermal resistance from junction to soldering point (R_thJS) for BCR 142T E6327?

R_thJS is ≤ 165 K/W, measured from junction to the soldering point on the PCB under standard mounting conditions. This value supports thermal design for ambient temperatures up to 85 °C when using minimum recommended copper pour per Infineon's SOT-23 layout guidelines.