Infineon Technologies BCR142E6327HTSA1

Overview

BCR142E6327HTSA1 from Infineon Technologies is an NPN silicon digital transistor with integrated bias resistors (R1 = 22 kΩ, R2 = 47 kΩ), designed for switching, inverting, interface, and driver circuits in automotive and industrial control systems. 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, and AEC-Q101 qualification.

For engineers reviewing the BCR142E6327HTSA1 datasheet, BCR142E6327HTSA1 pinout, BCR142E6327HTSA1 application, or BCR142E6327HTSA1 equivalent, this part serves as a pre-biased NPN switch optimized for low-power logic-level interfacing, ECU signal conditioning, and LED/relay driver stages where resistor network integration reduces PCB footprint and component count.

Technical Context

This digital transistor integrates two on-chip base bias resistors (R1 = 22 kΩ, R2 = 47 kΩ) to enable direct logic-level drive without external biasing components. Its common-emitter configuration supports DC current gain (h_FE) ≥ 70 at I_C = 5 mA and V_CE = 5 V, with guaranteed V_CE(sat) ≤ 0.3 V under specified switching conditions.

Thermal performance is defined by junction-to-solder-point thermal resistance R_thJS ≤ 240 K/W (SOT23 package), enabling stable operation up to T_j = 150 °C. The device meets AEC-Q101 stress testing requirements for automotive-grade reliability, including temperature cycling, HTRB, and ESD robustness.

Key Specifications

Pinout & Package

BCR142E6327HTSA1 is housed in a Pb-free, RoHS-compliant SOT23 plastic package (JEDEC TO-236AB), with standardized 3-pin layout and 1.9 mm × 1.3 mm footprint. Pin 1 = Base (with internal R1/R2 network), Pin 2 = Emitter, Pin 3 = Collector.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR142W E6327 and NSV14201T1G, BCR142E6327HTSA1 uniquely combines AEC-Q101 qualification, SOT23 mechanical compatibility, and guaranteed V_CE(sat) ≤ 0.3 V-making it the preferred choice for production automotive ECUs requiring traceable reliability and legacy footprint alignment.

Availability

BCR142E6327HTSA1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input stages, and consumer appliance control boards requiring stable component supply, AEC-Q101 compliance, and consistent SOT23 packaging.

Supply support for BCR142E6327HTSA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and industrial control solutions, with global manufacturing and quality certification infrastructure.

BCR142E6327HTSA1 belongs to Infineon's BCR series of digital transistors-designed specifically for automotive and industrial signal switching applications where integrated biasing, AEC-Q101 reliability, and SOT23/SOT323 scalability are essential.

FAQ

What is the function of the internal R1 and R2 resistors in BCR142E6327HTSA1?

The internal R1 (22 kΩ) connects the base to the input terminal, while R2 (47 kΩ) connects base to emitter. This forms a voltage divider that ensures reliable turn-on with logic-level inputs and guarantees fast, complete turn-off by pulling the base to emitter potential-eliminating floating-base risk and reducing susceptibility to noise-induced false triggering.

Can BCR142E6327HTSA1 replace a standard NPN transistor like BC847 in existing designs?

No-BCR142E6327HTSA1 is not a drop-in replacement for discrete NPN transistors. Its base terminal includes internal resistors, so connecting it identically to a BC847 will cause incorrect biasing. Redesign is required: remove external base resistors and verify logic-level compatibility, especially for 3.3 V drive where V_i(on) = 0.8–2.5 V ensures activation.

What is the maximum allowable ambient temperature for continuous operation?

While junction temperature must not exceed 150 °C, the maximum ambient temperature depends on PCB thermal design. With typical SOT23 mounting on 1 cm² 1-oz copper, derating begins above 85 °C ambient. At 100 mA and V_CE(sat) = 0.3 V, power dissipation is 30 mW-allowing safe operation up to ~115 °C ambient if thermal resistance to ambient is ≤ 130 K/W.

Is BCR142E6327HTSA1 suitable for PWM motor control applications?

It is suitable only for low-current PWM loads such as fans ≤ 50 mA or small solenoids, due to its 100 mA I_C limit and 200 mW power rating. For higher-current motors, use dedicated motor drivers. Its 150 MHz f_T supports clean 10–20 kHz PWM edges, but thermal limits require careful duty-cycle and heatsinking analysis in sustained operation.