Infineon Technologies BCR108SH6433XTMA1

Overview

BCR108SH6433XTMA1 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 BCR108SH6433XTMA1 datasheet, BCR108SH6433XTMA1 pinout, BCR108SH6433XTMA1 application, or BCR108SH6433XTMA1 equivalent, this part serves as a pre-biased dual-transistor solution in SOT363 package-optimized for space-constrained logic-level interfacing, LED drivers, and microcontroller GPIO load switching where resistor network integration reduces PCB footprint and component count.

Technical Context

This device integrates two electrically isolated NPN transistors with matched characteristics in a single SOT363 (SC-88) package, enabling compact dual-channel switching without external biasing networks. Its built-in R1/R2 ratio of 0.047 supports reliable saturation under standard logic drive conditions (e.g., 3.3 V/5 V MCU outputs).

The thermal resistance R_thJS ≤ 140 K/W and T_j rating of 150 °C allow stable operation in automotive ambient environments up to 125 °C case temperature, while the 250 mW total power dissipation at T_S ≤ 115 °C ensures robust pulsed and DC switching performance.

Key Specifications

Pinout & Package

BCR108SH6433XTMA1 is housed in a SOT363 (SC-88) surface-mount package with six terminals and dual isolated transistor structure. The package measures 2.13 mm × 1.25 mm × 0.95 mm and is RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR108SH6433XTMA1, the BCR108WH6433XTMA1 saves area but sacrifices dual-channel integration, while the NSVD108S01T2G offers higher thermal margin at the cost of automotive qualification-making each suitable for distinct system-level trade-offs in footprint, channel count, and environmental compliance.

Availability

BCR108SH6433XTMA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and smart sensor interface circuits requiring stable component supply and AEC-Q101 assurance.

Supply support for BCR108SH6433XTMA1 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 components with global manufacturing and quality certification infrastructure.

BCR108SH6433XTMA1 belongs to Infineon's BCR series of digital transistors-designed specifically for automotive-grade signal switching and logic interfacing where integrated biasing, reliability, and space efficiency are critical.

FAQ

What is the maximum continuous collector current for BCR108SH6433XTMA1?

The absolute maximum continuous collector current is 100 mA per transistor channel, as specified in the Absolute Maximum Ratings table. This rating applies at T_S ≤ 115 °C and assumes proper PCB copper area for heat dissipation. Exceeding this value risks thermal runaway or permanent degradation of h_FE and V_CE(sat).

Can BCR108SH6433XTMA1 replace a standard BJT like BC847 in a switching circuit?

Yes-but only if the circuit design accounts for its built-in bias network. Unlike BC847, BCR108SH6433XTMA1 requires no external base resistors and has fixed Vi(on)/Vi(off) thresholds. Direct substitution without adjusting drive voltage or removing external resistors will cause incorrect switching behavior or excessive base current.

Is the SOT363 package lead-free and RoHS compliant?

Yes, BCR108SH6433XTMA1 uses a Pb-free (RoHS-compliant) finish on all terminals and meets EU Directive 2011/65/EU requirements. The package marking "H6433" and tape-and-reel packaging (3,000 pcs/reel, ø180 mm) confirm full compliance with current environmental standards.

How does the dual-transistor configuration improve design efficiency?

The dual configuration allows two independent switching functions in one SOT363 footprint-reducing PCB area by ~40% versus two discrete SOT23 digital transistors. It also eliminates eight external bias resistors, simplifies layout, and ensures matched h_FE and thermal tracking between channels for synchronized operation.