Infineon Technologies BCR141WE6327HTSA1

Overview

BCR141WE6327HTSA1 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 BCR141WE6327HTSA1 datasheet, BCR141WE6327HTSA1 pinout, BCR141WE6327HTSA1 application, or BCR141WE6327HTSA1 equivalent, this page delivers verified package mapping (SOT-323/SC74), terminal roles, thermal resistance (R_thJS ≤ 133 K/W), input voltage thresholds (V_i(on) = 1–2.5 V, V_i(off) = 0.8–1.5 V), and AEC-Q101-compliant reliability data.

Technical Context

This device integrates two matched NPN transistors in a single SOT-323 (SC74) package with isolated die and identical internal resistor networks. Its dual-transistor topology enables compact push-pull or differential logic-level translation without external biasing components.

The built-in R1/R2 network (22 kΩ ±25%) eliminates base resistor placement, reduces PCB footprint, and ensures consistent turn-on/off behavior across temperature (−40°C to +125°C). Input characteristics are defined by V_i(on) and V_i(off), enabling direct TTL/CMOS-level interfacing without level-shifting circuitry.

Key Specifications

Pinout & Package

SOT-323 (SC74) 3-pin plastic package with gull-wing leads; moisture sensitivity level (MSL) 1, RoHS-compliant, Pb-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR141WE6327HTSA1, BCR142WE6327HTSA1 offers higher minimum gain for marginal drive conditions, while NSVD141DWT1G trades dual functionality for higher input resistance-neither matches the original's combination of dual topology, 22 kΩ bias, and AEC-Q101 compliance.

Availability

BCR141WE6327HTSA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and medical diagnostic equipment requiring stable component supply and long-lifecycle support.

Supply support for BCR141WE6327HTSA1 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 global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.

This part belongs to Infineon's BCR family of digital transistors, engineered specifically for automotive-grade switching and interface functions where reliability, integration, and qualification are mandatory.

FAQ

What is the maximum operating temperature for BCR141WE6327HTSA1?

The junction temperature limit is 150 °C, and the package is rated for total power dissipation of 250 mW at T_S ≤ 124 °C. Derating curves show usable power drops linearly above that case temperature, reaching zero at 150 °C junction. Thermal resistance from junction to solder point is ≤133 K/W, enabling robust thermal design in sealed enclosures.

Does BCR141WE6327HTSA1 support PWM switching?

Yes - its f_T of 130 MHz and V_CE(sat) ≤ 0.3 V support clean switching at PWM frequencies up to 10 MHz. However, typical use is ≤100 kHz due to thermal limits (250 mW P_tot). Pulse load capability allows short-duration peak currents beyond 100 mA when duty cycle remains below 2 %, per the permissible pulse load graphs.

How does the built-in resistor network affect logic compatibility?

The 22 kΩ R1/R2 network sets V_i(on) = 1–2.5 V and V_i(off) = 0.8–1.5 V, making it directly compatible with 3.3 V and 5 V CMOS/TTL logic families. No external level-shifting is needed, and the internal pull-down (R2) guarantees a defined OFF state even with floating inputs, improving system robustness.

Is BCR141WE6327HTSA1 pin-compatible with other BCR141 variants?

No - BCR141W uses SOT-323 (SC74) with pinout 1=B, 2=E, 3=C; BCR141S (SOT-363) and BCR141U (SC74 dual) have different pin assignments and internal configurations. Substitution requires verification of package outline, pin function mapping, and thermal derating - mechanical and electrical incompatibility exists across the BCR141 series suffixes.