Infineon Technologies BCR 141L3 E6327

Overview

BCR 141L3 E6327 from Infineon Technologies is an NPN silicon digital transistor with integrated bias resistors (R1 = R2 = 22 kΩ), designed for switching, inverting, interface, 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, h_FE ≥ 50, and operates up to T_j = 150 °C. It is used in compact logic-level signal translation and microcontroller GPIO interfacing.

For engineers reviewing the BCR 141L3 E6327 datasheet, BCR 141L3 E6327 pinout, BCR 141L3 E6327 application, or BCR 141L3 E6327 equivalent, this page delivers verified electrical parameters, SOT23-3 package mapping, thermal derating curves, input threshold behavior (V_i(on) = 1–2.5 V), and discrete transistor selection guidance for low-power digital control paths.

Technical Context

This device integrates two precision-matched 22 kΩ bias resistors (R1/R2 ratio 0.9–1.1) directly into a single-chip NPN transistor structure, eliminating external base resistors in standard switching configurations. Its common-emitter DC current gain h_FE ≥ 50 at I_C = 5 mA/V_CE = 5 V ensures reliable saturation under typical MCU drive conditions.

The BCR 141L3 E6327 uses a thermally optimized TSLP-3-4 package variant (pin-compatible with SOT23-3 footprint), delivering R_thJS ≤ 60 K/W and P_tot = 250 mW at T_S ≤ 135 °C - enabling higher ambient operation than standard SOT23 versions like BCR141 or BCR141F.

Key Specifications

Pinout & Package

BCR 141L3 E6327 is housed in a TSLP-3-4 leadless package (3-pin, 0.65 mm pitch), dimensionally compatible with SOT23-3 footprints but with enhanced thermal performance. Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR141S E6327 and NSVD120SN04T1G, the BCR 141L3 E6327 uniquely combines matched dual-resistor biasing, lowest thermal resistance (≤60 K/W), and SOT23-3 compatibility - making it optimal for space- and thermally constrained single-channel digital switching where design simplicity and reliability are prioritized.

Availability

BCR 141L3 E6327 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and IoT sensor node power management requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for BCR 141L3 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 electronics, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and ISO 9001.

The BCR141 series belongs to Infineon's digital transistor product line, engineered specifically for replacing discrete BJT + resistor combinations in microcontroller interface circuits - emphasizing integration, thermal efficiency, and guaranteed switching thresholds.

FAQ

Is BCR 141L3 E6327 pin-compatible with standard SOT23-3 transistors?

Yes - BCR 141L3 E6327 uses the TSLP-3-4 package, which shares identical pad layout, outline dimensions, and pin numbering (1 = Base, 2 = Emitter, 3 = Collector) with JEDEC-standard SOT23-3. It can be placed using existing SOT23-3 stencil and reflow profiles without layout changes.

What is the maximum operating temperature for continuous 100 mA switching?

At I_C = 100 mA and V_CE(sat) ≈ 0.3 V, power dissipation is ~30 mW. With R_thJS ≤ 60 K/W, junction temperature rise is ≤ 1.8 °C above solder point temperature. Therefore, continuous operation is supported up to T_S = 135 °C - corresponding to ambient >100 °C in well-designed PCB layouts.

Can BCR 141L3 E6327 replace a generic 2N3904 with external base resistors?

Yes - it replaces a 2N3904 plus two 22 kΩ resistors in common-emitter switch configurations. Unlike the 2N3904, it guarantees V_i(on) = 1–2.5 V and V_i(off) = 0.8–1.5 V across temperature, eliminating resistor tolerance drift and improving noise immunity in noisy industrial environments.

Does BCR 141L3 E6327 support PWM frequencies above 1 MHz?

Yes - with f_T = 130 MHz and measured switching times (t_on/t_off) < 50 ns, it supports clean PWM operation up to at least 10 MHz. Performance remains stable up to 50% duty cycle; for >50% duty, ensure PCB thermal relief to maintain T_j < 150 °C.