Infineon Technologies BCR 133F E6327

Overview

BCR 133F E6327 from Infineon Technologies is an NPN silicon digital transistor with integrated bias resistors (R1 = R2 = 10 kΩ), designed for low-power switching in interface, inverter, and driver circuits. It supports 50 V V_CEO, 100 mA I_C, 0.3 V V_CE(sat) at I_C/I_B = 20, and operates up to 150 °C junction temperature - commonly used in automotive body control modules and LED driver enable logic.

For engineers reviewing the BCR 133F E6327 datasheet, BCR 133F E6327 pinout, BCR 133F E6327 application, or BCR 133F E6327 equivalent, key selection criteria include input threshold voltage (Vi(on)/Vi(off)), built-in resistor matching, thermal resistance (R_thJS ≤ 240 K/W), AEC-Q101 qualification, and SOT23 package compatibility with high-density PCB layouts.

Technical Context

This digital transistor integrates two precision 10 kΩ bias resistors (R1/R2 ratio 0.9–1.1) to eliminate external base drive components. Its monolithic NPN structure enables fast switching (f_T = 130 MHz) with guaranteed V_CE(sat) ≤ 0.3 V at I_C = 10 mA and I_B = 0.5 mA, supporting clean logic-level interfacing between microcontrollers and peripheral loads.

The device complies with AEC-Q101 stress testing for automotive applications and features Pb-free RoHS-compliant packaging. Thermal performance is characterized by junction-to-solder-point resistance of ≤240 K/W, enabling stable operation under pulsed load conditions up to D < 2% duty cycle.

Key Specifications

Pinout & Package

BCR 133F E6327 is housed in a standard SOT23 plastic surface-mount package (3-pin, 1.3 mm × 2.9 mm footprint), optimized for automated assembly and thermal dissipation on FR-4 PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC847B,215 and NSV133FDT5G, BCR 133F E6327 provides matched 10 kΩ bias resistors and tighter R1/R2 ratio (0.9–1.1), delivering more predictable logic-level switching behavior without external tuning - critical for high-volume automotive and industrial control boards.

Availability

BCR 133F E6327 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and consumer appliance control boards requiring stable component supply and long-term lifecycle support.

Supply support for BCR 133F 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.

BCR 133F E6327 belongs to Infineon's BCR family of digital transistors, engineered specifically for AEC-Q101-compliant automotive signal switching and interface applications where reliability and integration reduce system complexity.

FAQ

What is the function of the built-in resistors in BCR 133F E6327?

The integrated R1 (base-to-V_IN) and R2 (base-to-emitter) resistors form a voltage divider that sets precise input threshold levels. This eliminates external bias components, enabling direct connection to 3.3 V or 5 V logic outputs while ensuring reliable turn-on (Vi(on) = 1–2.5 V) and turn-off (Vi(off) = 0.8–1.5 V) behavior across temperature.

Is BCR 133F E6327 pin-compatible with standard SOT23 NPN transistors?

No - BCR 133F E6327 uses emitter-base-collector (E-B-C) pinout (Pin 1 = E, Pin 2 = B, Pin 3 = C), whereas most general-purpose SOT23 NPN transistors (e.g., BC847) use emitter-collector-base (E-C-B). Incorrect PCB layout will result in functional failure; verify pin assignment using Infineon's package drawing EHA07174.

Can BCR 133F E6327 replace mechanical relays in low-power applications?

Yes - it reliably switches up to 100 mA DC loads at ≤50 V, making it suitable for replacing miniature signal relays in LED indicators, buzzer drivers, and optocoupler inputs. Its solid-state construction offers faster switching, no contact wear, and immunity to vibration - though it does not provide galvanic isolation like a relay.

Does BCR 133F E6327 support PWM switching?

Yes - with f_T = 130 MHz and V_CE(sat) ≤ 0.3 V, it supports clean PWM operation up to at least 10 kHz. For optimal performance, ensure gate drive rise/fall times are < 100 ns and limit I_C to ≤80 mA during continuous PWM to maintain T_j < 150 °C under typical board thermal conditions.