Infineon Technologies BCR 164L3 E6327

Overview

BCR 164L3 E6327 from Infineon Technologies is a PNP silicon digital transistor with integrated bias resistors (R1 = 4.7 kΩ, R2 = 10 kΩ), designed for switching, inverting, interfacing, and driver circuits. It features V_CEO = 50 V, I_C = 100 mA, P_tot = 250 mW at T_S ≤ 135 °C, V_CE(sat) ≤ 0.3 V at I_C = 10 mA/I_B = 0.5 mA, and f_T = 160 MHz - used in compact logic-level interface stages in industrial control modules.

For engineers reviewing the BCR 164L3 E6327 datasheet, BCR 164L3 E6327 pinout, BCR 164L3 E6327 application, or BCR 164L3 E6327 equivalent, key selection criteria include its built-in resistor ratio (R1/R2 = 0.47), low saturation voltage, SC75 package thermal resistance (R_thJS ≤ 60 K/W), and guaranteed h_FE ≥ 30 at I_C = 5 mA/V_CE = 5 V.

Technical Context

This PNP digital transistor integrates two precision bias resistors to eliminate external base drive components, enabling direct TTL/CMOS-level signal compatibility. Its fixed R1/R2 ratio of 0.47 ensures stable turn-on behavior across temperature, while the 160 MHz f_T supports high-speed switching up to ~10 MHz in practical gate-drive applications.

The device operates in common-emitter configuration with guaranteed V_(BR)CEO = 50 V and V_CE(sat) ≤ 0.3 V under pulsed conditions (t < 300 µs, D < 2%), making it suitable for low-power load switching where board space and component count are constrained.

Key Specifications

Pinout & Package

BCR 164L3 E6327 is housed in an SC75 (SOT-416) surface-mount package: 1.6 mm × 0.8 mm footprint, 0.45 mm nominal height, three terminals, single-row gull-wing leads.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR164T and BCR164F, the BCR164L3 offers superior thermal resistance (R_thJS ≤ 60 K/W) and higher allowable soldering point temperature (135 °C), enabling denser PCB layouts and higher reliability in confined enclosures without forced cooling.

Availability

BCR 164L3 E6327 is available at Aetrix Electronics and suitable for industrial sensor interfaces, microcontroller GPIO drivers, and automotive body control modules requiring stable component supply and long-term production continuity.

Supply support for BCR 164L3 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 industrial control solutions, with global manufacturing and quality certification to ISO/TS 16949 and ISO 14001.

The BCR164L3 belongs to Infineon's digital transistor product line, engineered for space- and cost-sensitive logic interface and switching applications in automotive, industrial, and consumer electronics.

FAQ

What is the function of the integrated resistors R1 and R2 in the BCR 164L3 E6327?

R1 (4.7 kΩ) connects base to input signal; R2 (10 kΩ) connects base to emitter. This forms a voltage divider that sets precise turn-on/off thresholds (Vi(on) ≤ 1.4 V, Vi(off) ≥ 0.5 V), eliminating external bias components and improving noise immunity in logic-driven switching.

Can the BCR 164L3 E6327 replace a standard PNP BJT like BC807 in existing designs?

No - it cannot be a direct drop-in replacement. Unlike discrete BJTs, the BCR164L3 has fixed internal resistors and different input characteristics. Swapping requires redesigning the drive circuit to account for its defined Vi(on)/Vi(off) thresholds and absence of a bare base terminal.

What is the maximum operating frequency for switching applications using this device?

While f_T = 160 MHz indicates small-signal bandwidth, practical switching frequency is limited by stored charge and saturation recovery. For reliable 100 mA switching with < 10% duty cycle, operation up to 5–10 MHz is verified; continuous 100% duty-cycle use should remain below 100 kHz to maintain thermal safety.

Is the BCR 164L3 E6327 suitable for automotive applications?

Yes - it meets AEC-Q101 stress-test requirements for discrete semiconductors. Its 150 °C junction temperature rating, guaranteed parametric performance over –55 °C to +150 °C, and qualified SC75 package make it appropriate for non-safety-critical automotive body electronics such as lighting controls and HVAC actuators.