Infineon Technologies BCR108E6327HTSA1

Overview

BCR108E6327HTSA1 from Infineon Technologies is an NPN silicon digital transistor with integrated bias resistors (R1 = 2.2 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, h_FE ≥ 70, and AEC-Q101 qualification.

For engineers reviewing the BCR108E6327HTSA1 datasheet, BCR108E6327HTSA1 pinout, BCR108E6327HTSA1 application, or BCR108E6327HTSA1 equivalent, this part supports reliable low-power logic-level interfacing, microcontroller GPIO load driving, and automotive body electronics where built-in biasing eliminates external resistor networks and reduces PCB footprint.

Technical Context

This digital transistor integrates two precision bias resistors to configure a single-NPN switch with fixed base drive ratio (R1/R2 = 0.047 typ.), enabling direct TTL/CMOS-compatible input control without external components. Its SOT23 package supports surface-mount assembly and thermal dissipation up to 200 mW at T_S ≤ 102°C.

The device operates across −65 °C to +150 °C junction temperature range, with V_(BR)CEO = 50 V, I_EBO ≤ 164 µA, and f_T = 170 MHz - confirming suitability for medium-speed switching (<1 MHz) in power management and signal routing applications.

Key Specifications

Pinout & Package

BCR108E6327HTSA1 is housed in a Pb-free, RoHS-compliant SOT23 plastic package (JEDEC TO-236AB), with 3-pin configuration optimized for high-density PCB layouts and automated pick-and-place assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC847B,115 and NSV10800MUT1G, BCR108E6327HTSA1 delivers optimal balance of integration, automotive qualification, and guaranteed turn-on behavior - reducing validation time and board area in cost-sensitive, high-volume control modules.

Availability

BCR108E6327HTSA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, LED driver circuits, and microcontroller interface applications requiring stable component supply and long-term lifecycle support.

Supply support for BCR108E6327HTSA1 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 leadership in AEC-Q101-qualified components.

BCR108E6327HTSA1 belongs to Infineon's BCR family of digital transistors - engineered specifically for simplified, space-efficient switching in automotive and industrial control nodes where reliability and reduced bill-of-materials are critical.

FAQ

Is BCR108E6327HTSA1 pin-compatible with other SOT23 digital transistors like the MMBT2222A?

No. BCR108E6327HTSA1 has Base–Emitter–Collector pinout (1–2–3), whereas MMBT2222A uses Emitter–Base–Collector (1–2–3). Swapping them causes functional failure. Always verify pin assignment using the official Infineon package drawing EHA07174, which confirms Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector.

What is the maximum allowable input voltage applied to the base terminal (Pin 1)?

The absolute maximum input reverse voltage (V_i(rev)) is 5 V, and forward voltage (V_i(fwd)) is 20 V. Exceeding either risks damaging the internal R1–R2 network. For 3.3 V or 5 V logic interfaces, no series resistor is needed; for 12 V or 24 V inputs, an external current-limiting resistor must be added to keep base current within safe limits per datasheet curves.

Does BCR108E6327HTSA1 support PWM switching at 20 kHz?

Yes. With f_T = 170 MHz and V_CE(sat) stable up to 100 mA, it supports clean 20 kHz PWM switching for LED dimming or small DC motor control. Switching losses remain low due to fast turn-on/off times (<100 ns typical), but layout must minimize parasitic inductance on collector/emitter paths to avoid voltage overshoot.

Can BCR108E6327HTSA1 replace a standard 2N3904 in existing designs?

Only with schematic revision. Unlike 2N3904, BCR108E6327HTSA1 integrates base bias resistors and uses different pinout. Direct substitution causes incorrect biasing or open-circuit behavior. To migrate, remove external base resistors and reassign pins per SOT23 mapping - validated in Infineon Application Note AN2015-07 for digital transistor retrofitting.