Infineon Technologies BCR 169L3 E6327

Overview

BCR 169L3 E6327 from Infineon Technologies is a PNP silicon digital transistor with integrated 4.7 kΩ bias resistor, designed for switching, inverting, interfacing, and driver circuits. It features V_CEO = 50 V, I_C = 100 mA, h_FE = 120–630, V_CE(sat) ≤ 0.3 V at I_C = 10 mA/I_B = 0.5 mA, and operates in TSLP-3-4 package for space-constrained logic-level interface applications.

For engineers reviewing the BCR 169L3 E6327 datasheet, BCR 169L3 E6327 pinout, BCR 169L3 E6327 application, or BCR 169L3 E6327 equivalent, this part serves as a single-chip, resistor-equipped PNP switch optimized for level translation, microcontroller GPIO buffering, and low-power load control in industrial I/O modules and consumer appliance PCBs.

Technical Context

This device integrates a monolithic PNP bipolar transistor with a precision laser-trimmed 4.7 kΩ base bias resistor (R1), enabling direct logic-level drive without external components. Its TSLP-3-4 package provides thermal resistance R_thJS ≤ 60 K/W and supports continuous operation up to T_j = 150 °C.

Electrical behavior is defined by guaranteed DC current gain (h_FE) across 120–630 at I_C = 5 mA/V_CE = 5 V, sub-0.3 V saturation voltage under rated switching conditions, and input threshold voltages Vi(on) = 0.5–1.1 V and Vi(off) = 0.4–0.8 V - ensuring reliable turn-on/turn-off in 3.3 V and 5 V digital systems.

Key Specifications

Pinout & Package

BCR 169L3 E6327 uses the TSLP-3-4 surface-mount package (3-pin, 0.65 mm pitch, 1.3 × 0.8 × 0.45 mm), optimized for automated assembly and thermal performance in dense layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR 169L3 E6327, the BCR169T offers identical electrical specs but reduced thermal headroom, while the BCR169S delivers channel matching at the cost of doubled footprint and non-interchangeable pinout - making the L3 variant optimal for single-channel, thermally demanding applications.

Availability

BCR 169L3 E6327 is available at Aetrix Electronics and suitable for PLC digital input modules, smart appliance control boards, and USB-C power delivery interfaces requiring stable component supply and long-term industrial lifecycle support.

Supply support for BCR 169L3 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 IATF 16949.

The BCR169 series belongs to Infineon's digital transistor product line, engineered specifically for replacing discrete BJT + resistor combinations in industrial automation, home appliance, and consumer electronics signal interface applications.

FAQ

What is the maximum continuous collector current for BCR 169L3 E6327?

The absolute maximum continuous collector current is 100 mA, verified per the 2006-05-10 datasheet. Derating applies above 25 °C ambient: at T_S = 100 °C, usable I_C drops to ~75 mA due to thermal limits imposed by the 250 mW P_tot rating and R_thJS ≤ 60 K/W.

Can BCR 169L3 E6327 be used as a high-side switch?

Yes - its PNP structure and emitter-connected-to-V_CC configuration make it inherently suitable for high-side switching. With V_CEO = 50 V and V_CE(sat) ≤ 0.3 V, it reliably controls loads up to 24 V at ≤100 mA while maintaining low dropout and minimal heat generation.

Is the built-in resistor value fixed or adjustable?

The built-in base bias resistor R1 is fixed at 4.7 kΩ (typical), with a guaranteed range of 3.2–6.2 kΩ per datasheet. It is laser-trimmed during wafer sort and cannot be adjusted externally - design must accommodate this tolerance in logic-level compatibility analysis.

Does BCR 169L3 E6327 require a flyback diode when switching inductive loads?

Yes - although V_CEO = 50 V provides margin, inductive kickback can exceed this rating. A reverse-biased flyback diode (e.g., BAS16) must be placed across the load to clamp transient voltage and prevent junction breakdown during turn-off, especially with solenoids or relay coils.