Infineon Technologies BCR 103F E6327

Overview

BCR 103F E6327 from Infineon Technologies is an NPN silicon digital transistor with integrated bias resistors (R1 = R2 = 2.2 kΩ), designed for low-power switching, interface, and driver circuits in compact consumer and industrial electronics. It features V_CEO = 50 V, I_C = 100 mA, V_CE(sat) ≤ 0.3 V at I_C = 20 mA/I_B = 1 mA, h_FE ≥ 20, and operates up to T_j = 150 °C in TSFP-3 package.

For engineers reviewing the BCR 103F E6327 datasheet, BCR 103F E6327 pinout, BCR 103F E6327 application, or BCR 103F E6327 equivalent, this part serves as a space-optimized, resistor-equipped switch for microcontroller GPIO interfacing, LED drivers, and level-shifting logic where discrete base biasing is undesirable.

Technical Context

This digital transistor integrates two precision 2.2 kΩ bias resistors (R1 from base to V_IN, R2 from base to emitter) to enable single-resistor input drive and stable saturation without external components. Its SC75-compatible TSFP-3 package supports high-density PCB layouts while maintaining thermal resistance R_thJS ≤ 90 K/W.

The device operates in common-emitter configuration with guaranteed DC current gain h_FE ≥ 20 at I_C = 20 mA/V_CE = 5 V, and exhibits f_T = 140 MHz for moderate-speed switching applications such as PWM dimming control and serial bus buffering.

Key Specifications

Pinout & Package

BCR 103F E6327 is housed in the TSFP-3 (Thin Small Outline Transistor, 3-pin) surface-mount package - a 1.2 mm × 0.8 mm × 0.45 mm leadless variant of SC75 optimized for automated assembly and thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR103F E6327, BCR108F offers higher gain for marginal drive conditions, while NSVD103FXT5G provides greater current and power headroom-both retain identical footprint and bias topology for seamless redesign evaluation.

Availability

BCR 103F E6327 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO interfaces, small-signal relay drivers, and serial bus line buffers requiring stable component supply and long-term manufacturability.

Supply support for BCR 103F 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 to ISO/TS 16949 and AEC-Q101 standards.

The BCR103F belongs to Infineon's BCR family of digital transistors engineered for cost-sensitive, space-constrained switching applications in consumer, industrial, and automotive subsystems where simplified biasing improves yield and reliability.

FAQ

What is the maximum allowable base input voltage for BCR 103F E6327?

The absolute maximum input voltage applied to Pin 1 (base node) is limited by V_EBO = 5 V, as specified in the datasheet. Exceeding this risks forward-biasing the internal base-emitter junction beyond safe limits, potentially degrading h_FE or causing permanent damage. For 5 V logic interfaces, series current limiting is not required due to R1 = 2.2 kΩ, yielding ~2 mA peak base current.

Can BCR 103F E6327 be used in linear amplifier configurations?

No - BCR 103F E6327 is optimized and characterized exclusively for switching operation. Its integrated bias resistors fix the base bias point, and h_FE is only guaranteed in saturated switching mode (I_C/I_B ≥ 20). Linear region operation introduces unpredictable gain, thermal instability, and potential latch-up due to lack of external bias control.

Is the TSFP-3 package of BCR 103F E6327 compatible with reflow soldering per J-STD-020?

Yes - the TSFP-3 package is qualified for standard Pb-free reflow profiles per J-STD-020D, with peak temperature up to 260 °C for ≤ 30 seconds. The device's T_j(max) = 150 °C and R_thJS ≤ 90 K/W allow safe thermal excursion during reflow, provided board-level copper area meets minimum pad recommendations in Infineon's mounting guidelines.

How does the built-in resistor ratio affect switching speed?

The R1/R2 ratio of 0.9–1.1 ensures predictable turn-on and turn-off thresholds, but does not accelerate switching. Turn-off is slowed by stored charge removal through R2; measured t_off is ~150 ns at I_C = 20 mA. For faster turn-off, an external Schottky clamp or active pull-down is required - the internal network prioritizes simplicity over speed.