Infineon Technologies BCR 189L3 E6327

Overview

BCR 189L3 E6327 from Infineon Technologies is a PNP silicon digital transistor with integrated bias resistor (R1 = 22 kΩ), designed for low-power switching, inverter, interface, and driver circuits. 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 = 120–630, and operates up to T_j = 150 °C in TSLP-3 (SC75) package.

For engineers reviewing the BCR 189L3 E6327 datasheet, BCR 189L3 E6327 pinout, BCR 189L3 E6327 application, or BCR 189L3 E6327 equivalent, this part supports compact logic-level interfacing, microcontroller GPIO load driving, and discrete signal inversion where built-in base resistors reduce PCB component count and improve assembly reliability.

Technical Context

This PNP digital transistor integrates a single 22 kΩ base-emitter pull-up resistor (R1), enabling direct connection to open-collector or microcontroller outputs without external biasing. Its common-emitter configuration delivers predictable saturation behavior with V_CE(sat) ≤ 0.3 V under defined drive conditions and supports DC current gain ranging from 120 to 630 at I_C = 5 mA/V_CE = 5 V.

Thermal performance is optimized for surface-mount operation: R_thJS ≤ 60 K/W (junction-to-soldering point), allowing 250 mW total power dissipation at T_S ≤ 135 °C. The SC75 (TSLP-3) package ensures minimal footprint while maintaining sufficient thermal path for low-duty-cycle switching applications.

Key Specifications

Pinout & Package

The BCR 189L3 E6327 is housed in a TSLP-3 (SC75) surface-mount package: 1.6 mm × 0.8 mm × 0.4 mm, 3-pin, lead-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR189F and BCR189T, the BCR189L3 offers optimal thermal balance-higher board temperature limit than BCR189T and lower junction-to-solder thermal resistance than BCR189F-making it preferred for compact, moderately heated PCB environments.

Availability

BCR 189L3 E6327 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller interface modules, relay control systems, and standby power switches requiring stable component supply and consistent parametric performance across production lots.

Supply support for BCR 189L3 E6327 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 ISO 14001.

The BCR189 series belongs to Infineon's digital transistor product line, engineered specifically for simplified, high-reliability switching in cost-sensitive consumer, industrial, and automotive body electronics applications.

FAQ

Is BCR 189L3 E6327 pin-compatible with standard SOT-23 transistors?

No. BCR 189L3 E6327 uses the SC75 (TSLP-3) package-smaller than SOT-23-with pin 1 (B), pin 2 (E), pin 3 (C) layout. Footprint and solder pad dimensions differ; direct replacement requires PCB redesign. Verified mechanical drawings confirm 1.6 mm × 0.8 mm body size and 0.65 mm pin pitch.

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

The datasheet specifies I_C = 100 mA max and defines V_CE(sat) test condition at I_B = 0.5 mA. With R1 = 22 kΩ, applying 5 V to base yields ~227 µA drive-well within safe limits. Exceeding 1 mA base current risks exceeding P_tot or degrading long-term reliability per JEDEC JESD22-A108 stress guidelines.

Does BCR 189L3 E6327 support PWM switching at 10 kHz?

Yes. With f_T = 200 MHz and V_CE(sat) ≤ 0.3 V, the device fully supports 10 kHz PWM for LED dimming or relay duty cycling. Rise/fall times are sub-100 ns under typical loads; no external speed-up capacitors are needed due to integrated R1 and low C_cb (3 pF).

Can BCR 189L3 E6327 replace a generic PNP BJT like BC807 in existing designs?

Only with schematic and layout revision. Unlike BC807, BCR 189L3 has internal R1 and fixed pinout (B-E-C). Removing external base resistors and verifying logic polarity (active-low vs. active-high) is mandatory. Parametric validation shows h_FE and V_CE(sat) are comparable, but thermal behavior differs due to SC75 package.