Infineon Technologies BCR 179L3 E6327

Overview

BCR 179L3 E6327 from Infineon Technologies is a PNP silicon digital transistor with integrated bias resistor (R1 = 10 kΩ), designed for low-power switching, interface, 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 SC75 (TSLP-3-4) package for space-constrained PCB layouts.

For engineers reviewing the BCR 179L3 E6327 datasheet, BCR 179L3 E6327 pinout, BCR 179L3 E6327 application, or BCR 179L3 E6327 equivalent, this part serves as a compact, bias-resistor-equipped PNP switch for logic-level interfacing, LED driving, and microcontroller I/O buffering where simplified base drive and thermal efficiency are critical.

Technical Context

This digital transistor integrates a single 10 kΩ base-emitter pull-up resistor (R1), enabling direct connection to TTL/CMOS logic outputs without external bias components. Its PNP topology supports high-side switching with active-low control, and its f_T = 150 MHz ensures adequate bandwidth for fast-switching applications up to ~10 MHz.

The SC75 package delivers R_thJS ≤ 60 K/W, supporting continuous operation up to T_S = 135°C and P_tot = 250 mW at ambient, making it suitable for thermally dense consumer and industrial control modules where footprint and thermal resistance are tightly constrained.

Key Specifications

Pinout & Package

BCR 179L3 E6327 is housed in the SC75 (TSLP-3-4) surface-mount package: 1.6 mm × 0.8 mm footprint, 0.4 mm height, 3-pin configuration with gull-wing leads. Thermal resistance R_thJS ≤ 60 K/W enables efficient heat transfer to PCB copper.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR179L3 E6327, BCR198L3 E6327 offers higher voltage headroom at no layout cost, while NSV17930T1G provides AEC-Q101 qualification-making them distinct upgrades rather than drop-in replacements for specific reliability or voltage requirements.

Availability

BCR 179L3 E6327 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller I/O buffering, low-voltage relay driving, and power sequencing control requiring stable component supply across production lifecycles.

Supply support for BCR 179L3 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 power devices, with global manufacturing and quality certification to ISO/TS 16949.

The BCR series belongs to Infineon's digital transistor product line, engineered specifically for logic-level interfacing and compact switching applications where integration, thermal performance, and production scalability are prioritized.

FAQ

What is the maximum operating temperature for BCR 179L3 E6327?

The junction temperature (T_j) is rated to 150°C, and the device supports continuous operation up to a soldering-point temperature (T_S) of 135°C. Derating begins above 25°C ambient, with total power dissipation falling linearly to zero at 135°C case temperature per the P_tot vs. T_S curve in the datasheet.

Can BCR 179L3 E6327 replace a standard PNP BJT like BC807?

Yes-but only when the circuit uses base biasing via a single resistor. BCR 179L3 E6327 integrates R1 = 10 kΩ, so it replaces BC807 + external base resistor. It cannot substitute for BC807 in emitter-follower or linear amplifier configurations due to fixed internal bias topology and lack of base access.

Is the SC75 package lead-free and RoHS compliant?

Yes. BCR 179L3 E6327 is manufactured using lead-free solderable terminations and complies with EU RoHS Directive 2011/65/EU and REACH SVHC regulations. The package marking "E6327" denotes tape-and-reel packaging with RoHS-compliant finish and halogen-free molding compound.

What is the typical input threshold voltage for turning on BCR 179L3 E6327?

Vi(on) is specified as 0.5–1.1 V at I_C = 2 mA and V_CE = 0.3 V. In practice, the device reliably saturates with input voltages ≥ 0.8 V, making it compatible with 1.8 V, 3.3 V, and 5 V logic families without level-shifting circuitry.