Infineon Technologies BCR 199L3 E6327

Overview

BCR 199L3 E6327 from Infineon Technologies is a PNP silicon digital transistor with integrated bias resistor (R1 = 47 kΩ), designed for switching, inverting, interfacing, and driver circuits. It features V_CEO = 50 V, I_C = 70 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 - used in low-power logic-level interface modules for microcontroller GPIO expansion.

For engineers reviewing the BCR 199L3 E6327 datasheet, BCR 199L3 E6327 pinout, BCR 199L3 E6327 application, or BCR 199L3 E6327 equivalent, key selection criteria include built-in R1 tolerance (32–62 kΩ), thermal resistance R_thJS ≤ 60 K/W, SC75 package footprint compatibility, and guaranteed V_i(off) ≤ 0.8 V for reliable TTL/CMOS-level signal translation.

Technical Context

This digital transistor integrates a single 47 kΩ base bias resistor (R1) between base and emitter, eliminating external components in simple on/off switching configurations. Its PNP polarity enables high-side load control with active-low input drive, and its f_T = 200 MHz supports fast edge transitions in digital signal routing.

The device uses common-emitter configuration with defined V_i(on) (0.5–1.5 V) and V_i(off) (0.4–0.8 V) thresholds, enabling direct interfacing with 3.3 V and 5 V logic families without level-shifting circuitry. Thermal derating is specified per junction-to-solder-point resistance (R_thJS ≤ 60 K/W), critical for PCB layout in space-constrained applications.

Key Specifications

Pinout & Package

BCR 199L3 E6327 is housed in the SC75 (SOT-416) surface-mount package: 1.6 mm × 0.8 mm × 0.5 mm, 3-pin, lead-free, RoHS-compliant, with gull-wing leads and tape-and-reel packaging (3,000 pcs/reel, ø180 mm).

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR199L3 E6327, the BCR198L3 offers complementary NPN functionality but cannot replace it in high-side configurations, while the NSV199L3T1G trades voltage headroom and thermal capability for alternate sourcing - making the original optimal for 50 V-rated, thermally dense designs.

Availability

BCR 199L3 E6327 is available at Aetrix Electronics and suitable for LED driver interfaces, microcontroller GPIO expanders, relay coil drivers, and industrial sensor signal conditioning requiring stable component supply and long-term manufacturing continuity.

Supply support for BCR 199L3 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 R&D and wafer fabrication infrastructure.

The BCR199L3 belongs to Infineon's digital transistor product line, engineered specifically for reducing bill-of-materials count and PCB footprint in logic-level interface and switching applications across consumer, industrial, and automotive electronics.

FAQ

Is BCR 199L3 E6327 compatible with 3.3 V logic inputs?

Yes. Its V_i(on) max = 1.5 V and V_i(off) min = 0.4 V ensure reliable turn-on with 3.3 V CMOS outputs, even under worst-case voltage tolerances and temperature drift. The integrated R1 eliminates need for external pull-down or level-shifting components.

What is the maximum ambient temperature for continuous operation at full rated current?

At I_C = 70 mA, derating begins at T_S = 135 °C (case temperature). With R_thJS ≤ 60 K/W and T_j ≤ 150 °C, maximum ambient temperature is ~75 °C assuming 1 cm² 2-oz copper pad - verified per Infineon's SC75 thermal characterization data.

Does BCR 199L3 E6327 require an external flyback diode when driving inductive loads?

No external flyback diode is required for typical relay or solenoid loads within its 50 V V_CEO rating. However, for loads generating >50 V transients (e.g., automotive coils), an external clamp remains necessary - the device itself does not include integrated protection.

Can BCR 199L3 E6327 be used in linear amplifier mode?

No. It is optimized and characterized exclusively for switching operation. Its h_FE variation, V_CE(sat) specification, and lack of linear-region AC parameters (e.g., distortion, bandwidth at bias points) preclude use as a linear amplifier - intended strictly for digital on/off control.