Infineon Technologies BCR141E6433HTMA1

Overview

BCR141E6433HTMA1 from Infineon Technologies is an NPN silicon digital transistor with integrated bias resistors (R1 = R2 = 22 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 ≥ 50, and AEC-Q101 qualification.

For engineers reviewing the BCR141E6433HTMA1 datasheet, BCR141E6433HTMA1 pinout, BCR141E6433HTMA1 application, or BCR141E6433HTMA1 equivalent, key selection criteria include built-in resistor matching, thermal resistance (R_thJS ≤ 105 K/W for SC74 package), RoHS-compliant lead-free construction, and guaranteed operation up to T_j = 150 °C.

Technical Context

This dual-transistor device integrates two electrically isolated NPN transistors in a single SC74 (SOT-363) package with matched characteristics-enabling compact, space-efficient designs for push-pull drivers and complementary logic interfaces. Its internal R1/R2 ratio of 0.9–1.1 ensures consistent turn-on/off thresholds across temperature (−40 °C to +125 °C).

The device operates as a digitally controlled switch: input voltage thresholds Vi(on) = 1–2.5 V and Vi(off) = 0.8–1.5 V define reliable logic-level compatibility with 3.3 V and 5 V microcontrollers, while f_T = 130 MHz supports high-speed switching up to ~10 MHz in typical gate-drive applications.

Key Specifications

Pinout & Package

BCR141E6433HTMA1 uses the SC74 (SOT-363) surface-mount package: 6-pin, 2.9 mm × 1.9 mm footprint, 1.1 mm max height, and lead-free (RoHS-compliant) terminations.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR141E6433HTMA1, BCR142S offers lower gain but identical packaging and biasing, while NSVDU1413DWT1G sacrifices dual-channel capability for higher input impedance-making the original optimal for matched, isolated dual-switching in automotive and industrial control.

Availability

BCR141E6433HTMA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, consumer appliance motor control, and smart home relay interfaces requiring stable component supply and long-term lifecycle support.

Supply support for BCR141E6433HTMA1 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 industrial control solutions, with global manufacturing and quality certification to ISO/TS 16949 and AEC standards.

BCR141E6433HTMA1 belongs to Infineon's BCR family of digital transistors-engineered specifically for automotive-grade switching, interface, and driver functions where reliability, integration, and AEC-Q101 compliance are mandatory.

FAQ

Is BCR141E6433HTMA1 pin-compatible with BCR141S?

Yes-BCR141E6433HTMA1 uses the SC74 (SOT-363) package with identical pin 1 (B), pin 2 (E), pin 3 (C), pin 4 (E2), pin 5 (B2), and pin 6 (C1) mapping as defined for BCR141S. The "E6433HTMA1" suffix denotes tape-and-reel packaging and date code; electrical and mechanical specifications match the base BCR141S type.

What is the maximum operating frequency for switching applications?

The transition frequency f_T is 130 MHz, but practical switching frequency depends on load and drive conditions. For I_C = 10 mA with 20× overdrive (I_B = 0.5 mA), rise/fall times are typically <20 ns-supporting reliable PWM operation up to 10 MHz in well-designed PCB layouts with minimized parasitic inductance.

Does this part support 3.3 V logic-level drive without external components?

Yes-Vi(on) ranges from 1.0 V to 2.5 V and Vi(off) from 0.8 V to 1.5 V at 25 °C, ensuring robust turn-on with 3.3 V GPIO outputs (which typically swing 0–3.3 V). No series resistor or level shifter is needed; the internal 22 kΩ R1 provides appropriate base current for I_C ≤ 100 mA.

How does thermal derating work above 118 °C case temperature?

For BCR141E6433HTMA1 in SC74 package, P_tot linearly derates from 250 mW at T_S = 118 °C to zero at T_S = 150 °C. At T_S = 130 °C, allowable power drops to ~215 mW. This reflects junction-to-solder-point thermal resistance R_thJS ≤ 105 K/W and must be verified using actual board copper area and airflow conditions.