Infineon Technologies BCR 151T E6327

Overview

BCR 151T E6327 from Infineon Technologies is a PNP silicon digital transistor with integrated bias resistors (R1 = R2 = 100 kΩ), designed for low-power switching, interface, and driver circuits in compact consumer and industrial electronics. It supports 50 V V_CEO, 50 mA I_C, 0.3 V V_CE(sat) at 5 mA/0.25 mA drive, and operates up to 150 °C junction temperature.

For engineers reviewing the BCR 151T E6327 datasheet, BCR 151T E6327 pinout, BCR 151T E6327 application, or BCR 151T E6327 equivalent, this part serves as a space-optimized, resistor-equipped PNP switch for logic-level interfacing, LED driving, and microcontroller I/O buffering where discrete base-resistor design is impractical.

Technical Context

This digital transistor integrates two matched 100 kΩ bias resistors (R1 from base to emitter, R2 from base to collector) to enable single-pin control of PNP switching without external components. Its SC75 package supports high-density PCB layouts while maintaining thermal resistance of ≤165 K/W (junction-to-soldering point).

It delivers h_FE ≥70 at 5 mA/5 V, transitions at f_T = 120 MHz, and exhibits C_cb = 3 pF - enabling reliable operation in DC-coupled switching and moderate-frequency signal routing up to ~10 MHz.

Key Specifications

Pinout & Package

BCR 151T E6327 uses the SC75 (SOT-416) surface-mount package: 1.6 mm × 0.8 mm footprint, 0.4 mm nominal height, three terminals in linear configuration with gull-wing leads.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR 151T E6327, BCR152T offers faster switching at higher base current cost, while NSV151T1T1G removes R2 to reduce input loading but forfeits guaranteed turn-off behavior - making BCR 151T the most balanced choice for general-purpose logic-driven switching.

Availability

BCR 151T E6327 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller interface modules, and power sequencing control requiring stable component supply and long-term manufacturability.

Supply support for BCR 151T 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 electronics, and industrial control ICs and discrete devices.

BCR 151T E6327 belongs to Infineon's BCR series of digital transistors, engineered for space-constrained, high-reliability switching applications in consumer, industrial, and automotive subsystems.

FAQ

What is the function of the built-in resistors R1 and R2 in BCR 151T E6327?

R1 connects base to emitter and R2 connects base to collector, forming an integrated bias network that allows direct logic-level control without external components. This configuration ensures reliable turn-on with I_B ≈ (V_IN − 0.7 V)/R1 and guarantees turn-off when input is low, as R2 pulls base toward collector potential.

Can BCR 151T E6327 replace a standard PNP BJT like BC807 in existing designs?

Yes, but only if the circuit accommodates its fixed bias network. Unlike BC807, BCR 151T E6327 has no separate base terminal - it must be driven at the single base pin. Layout changes may be needed to remove external resistors and verify V_IN compatibility with Vi(on)/Vi(off) thresholds.

What is the maximum operating frequency for switching applications with BCR 151T E6327?

With f_T = 120 MHz and typical V_CE(sat) settling within 100 ns, BCR 151T E6327 supports reliable switching up to 10 MHz in low-duty-cycle applications. For sustained 50% duty cycle, practical limits are ~1–2 MHz due to thermal constraints and stored charge effects.

Is BCR 151T E6327 RoHS compliant and halogen-free?

Yes - BCR 151T E6327 complies with RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. The SC75 package uses lead-free solderable terminations and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) for unlimited floor life at ≤30 °C/60% RH.