Infineon Technologies BCR148SH6433XTMA1

Overview

BCR148SH6433XTMA1 from Infineon Technologies is an NPN silicon digital transistor with integrated bias resistors (R1 = R2 = 47 kΩ), designed for switching, inverting, and interface driver functions in automotive and industrial control circuits. It features V_CEO = 50 V, I_C = 100 mA, V_CE(sat) ≤ 0.3 V at I_C/I_B = 20, h_FE ≥ 70, and AEC-Q101 qualification.

For engineers reviewing the BCR148SH6433XTMA1 datasheet, BCR148SH6433XTMA1 pinout, BCR148SH6433XTMA1 application, or BCR148SH6433XTMA1 equivalent, this part supports reliable low-power logic-level interfacing, discrete load switching, and space-constrained PCB designs requiring matched dual-transistor performance in SOT363 packaging.

Technical Context

This device integrates two electrically isolated NPN transistors with tightly matched characteristics in a single SOT363 package - enabling differential signaling, push-pull output stages, or redundant switching paths without external resistor networks. Its built-in R1/R2 bias network simplifies base drive design and ensures consistent turn-on/turn-off thresholds across temperature.

The transistor operates with guaranteed V_i(on) ≤ 3 V and V_i(off) ≥ 0.8 V at I_C = 2 mA and 100 µA respectively, supporting direct connection to 3.3 V and 5 V logic families. Thermal resistance R_thJS ≤ 140 K/W enables stable operation up to T_S = 115 °C under continuous DC load.

Key Specifications

Pinout & Package

BCR148SH6433XTMA1 uses the SOT363 (SC-88) surface-mount package - a 6-pin, dual-transistor configuration with internal isolation and symmetrical pin mapping for layout flexibility.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR148SH6433XTMA1, BCR148S H6327 offers identical performance in smaller reels, while NSVD148SDT1G provides enhanced thermal capability at the cost of slightly larger SOT-363 footprint and different tape-and-reel coding.

Availability

BCR148SH6433XTMA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial I/O modules, and consumer appliance control systems requiring stable component supply and AEC-Q101 reliability assurance.

Supply support for BCR148SH6433XTMA1 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 aligned to ISO/TS 16949.

BCR148SH6433XTMA1 belongs to Infineon's BCR series of digital transistors - engineered specifically for simplified logic-level interfacing and robust switching in harsh-environment automotive and industrial applications.

FAQ

Is BCR148SH6433XTMA1 pin-compatible with standard SOT363 NPN transistors?

No - BCR148SH6433XTMA1 has a dedicated 6-pin dual-transistor pinout (B1/E1/C1/E2/B2/C2) with internal bias resistors. It is not interchangeable with generic SOT363 discrete transistors like BC847 or MMBT3904, which lack integrated resistors and use different pin assignments.

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

The absolute maximum input forward voltage is 80 V, but recommended operating Vi(fwd) is ≤ 5.5 V to avoid overstressing the internal R1/R2 network. At 5 V logic drive, I_B ≈ 106 µA per transistor, ensuring full saturation without excessive power dissipation in the bias network.

Does BCR148SH6433XTMA1 support PWM switching above 10 kHz?

Yes - with f_T ≥ 100 MHz and V_CE(sat) ≤ 0.3 V, it supports clean PWM switching up to at least 500 kHz. Layout-dependent parasitics may limit practical edge rates, but the device itself meets rise/fall time requirements for automotive lighting and motor control PWM applications.

Can both transistors be used independently with separate loads?

Yes - E1 and E2 are physically isolated terminals, allowing independent emitter referencing. This enables configurations such as high-side/low-side switching, differential drivers, or dual-channel isolation where each transistor drives a separate load with its own return path.