Infineon Technologies BCR119WH6327XTSA1

Overview

BCR119WH6327XTSA1 from Infineon Technologies is an NPN silicon digital transistor with integrated 4.7 kΩ base resistor, designed for switching, inverter, interface, and driver circuits in automotive and industrial control systems; features V_CEO = 50 V, I_E = 100 mA, h_FE = 120–630, V_CE(sat) ≤ 0.3 V at I_C = 10 mA/I_B = 0.5 mA, and AEC-Q101 qualification.

For engineers reviewing the BCR119WH6327XTSA1 datasheet, BCR119WH6327XTSA1 pinout, BCR119WH6327XTSA1 application, or BCR119WH6327XTSA1 equivalent, this part serves as a single-NPN logic-compatible switch with built-in biasing-ideal for microcontroller GPIO interfacing, LED/relay drivers, and level-shifting in space-constrained PCBs.

Technical Context

This device integrates a monolithic NPN transistor with a precision 4.7 kΩ input resistor (R1 = 3.2–6.2 kΩ) to enable direct TTL/CMOS logic-level drive without external bias components. It operates in common-emitter configuration with guaranteed V_(BR)CEO ≥ 50 V and I_CBO ≤ 100 nA at 40 V.

Thermal performance is defined by R_thJS ≤ 105 K/W (SOT323 package), enabling stable operation up to T_j = 150 °C. Its f_T = 150 MHz supports fast switching in digital signal paths, while C_cb = 3 pF minimizes capacitive loading on driving sources.

Key Specifications

Pinout & Package

SOT323 (SC-70) 3-pin surface-mount package: compact footprint (2.1 × 1.25 × 0.95 mm), tape-and-reel packaging (3,000 pcs/reel ø180 mm), RoHS-compliant, Pb-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC847BW and DTC114YKAT146, BCR119WH6327XTSA1 delivers superior thermal robustness (R_thJS ≤ 105 K/W), automotive qualification, and tighter R₁ tolerance-making it optimal for safety-critical, high-reliability, and thermally constrained applications.

Availability

BCR119WH6327XTSA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output stages, and USB-C power management systems requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.

Supply support for BCR119WH6327XTSA1 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 IATF 16949.

BCR119WH6327XTSA1 belongs to Infineon's BCR family of digital transistors-engineered specifically for automotive and industrial switching applications where integration, reliability, and thermal performance are critical.

FAQ

Is BCR119WH6327XTSA1 pin-compatible with standard SOT23 NPN transistors?

No-it uses the SOT323 (SC-70) package with pin 1 = Base, pin 2 = Emitter, pin 3 = Collector, which differs from standard SOT23 pinout (pin 1 = Emitter). Direct replacement requires PCB layout revision and verification of thermal pad clearance per Infineon's SOT323 footprint guidelines.

Can BCR119WH6327XTSA1 drive a 24 V relay coil directly?

Yes-its V_CEO = 50 V and I_E = 100 mA rating allow safe operation with typical 24 V/40 mA relays. Ensure V_i(on) ≥ 0.5 V is met by the driving source (e.g., 3.3 V MCU GPIO), and verify V_CE(sat) ≤ 0.3 V maintains < 12 mW coil power loss.

What is the maximum allowable ambient temperature for continuous operation?

At 100 mA load and 250 mW dissipation, the junction temperature limit of 150 °C permits ambient temperatures up to +100 °C when mounted on 1-in² 2-oz copper with standard FR-4, based on R_thJS ≤ 105 K/W and R_thSA ≈ 60 K/W. Derating curves in datasheet section 5 confirm 124 °C case temperature limit.

Does BCR119WH6327XTSA1 support PWM switching at 20 kHz?

Yes-its f_T = 150 MHz and C_cb = 3 pF enable clean 20 kHz PWM operation with < 100 ns rise/fall times. Measured V_CE(sat) remains stable across temperature, and no external snubber is required for resistive or lightly inductive loads.