Infineon Technologies BCR133E6393HTSA1

Overview

BCR133E6393HTSA1 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, operates up to 150 °C junction temperature, and is AEC-Q101 qualified for automotive applications.

For engineers reviewing the BCR133E6393HTSA1 datasheet, BCR133E6393HTSA1 pinout, BCR133E6393HTSA1 application, or BCR133E6393HTSA1 equivalent, key selection criteria include built-in resistor matching, thermal resistance (R_thJS ≤ 240 K/W), RoHS-compliant SOT23 packaging, and guaranteed V_i(on)/V_i(off) thresholds for reliable logic-level interfacing.

Technical Context

This digital transistor integrates two matched on-chip resistors to enable single-pin base drive-eliminating external bias components. Its common-emitter configuration delivers predictable saturation behavior with I_C/I_B = 20 at V_CE = 0.3 V and supports pulse operation up to 130 MHz f_T.

The device uses a monolithic silicon die in SOT23 package with defined pin 1 (Emitter), pin 2 (Base), pin 3 (Collector), and meets AEC-Q101 stress testing for automotive under-hood use. Thermal derating follows P_tot = 200 mW at T_S ≤ 102 °C.

Key Specifications

Pinout & Package

SOT23 plastic surface-mount package with gull-wing leads, 1.3 mm pitch, and standard JEDEC MO-178 footprint. Pin 1 = Emitter, Pin 2 = Base, Pin 3 = Collector.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC847B,115, BCR133E6393HTSA1 reduces bill-of-materials count and improves threshold consistency; versus NSV13331T1G, it trades slightly higher V_CE(sat) for tighter R1/R2 matching and broader temperature stability of input thresholds.

Availability

BCR133E6393HTSA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, consumer appliance interfaces, and medical diagnostic equipment requiring stable component supply and AEC-Q101 compliance.

Supply support for BCR133E6393HTSA1 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, and industrial control ICs and discrete devices.

The BCR133 series belongs to Infineon's automotive-qualified digital transistor product line, engineered specifically for robust, space-constrained logic-level switching in harsh-environment electronic control units.

FAQ

Is BCR133E6393HTSA1 pin-compatible with standard SOT23 NPN transistors?

No-BCR133E6393HTSA1 uses E-B-C pinout (Emitter=Pin1, Base=Pin2, Collector=Pin3), whereas most discrete SOT23 NPN transistors (e.g., BC847) use E-C-B. Swapping without verification causes circuit failure. Always confirm pin assignment using the Infineon package drawing EHA07174.

What is the maximum allowable base drive voltage for reliable operation?

The absolute maximum input reverse voltage V_i(rev) is 10 V. Applying >10 V between base and emitter in reverse polarity risks damaging the internal R2 resistor or BE junction. For 3.3 V or 5 V logic drive, no series resistor is needed due to built-in R1/R2.

Does this part support PWM switching at 20 kHz?

Yes-its 130 MHz f_T and 0.3 V V_CE(sat) support clean 20 kHz PWM with <100 ns turn-on/turn-off times under I_C ≤ 50 mA. Thermal limits must be observed: at 20 kHz, average power should stay below 150 mW to maintain T_j < 130 °C on typical 2-layer FR4.

How does the built-in resistor ratio affect noise immunity?

The R1/R2 ratio of 0.9–1.1 ensures V_i(off) remains ≤1.5 V and V_i(on) ≥1.0 V across -40 to 125 °C, creating ≥0.5 V noise margin against EMI. This eliminates need for external Schmitt-trigger buffers in noisy automotive or industrial environments.