Infineon Technologies BCR148SE6327BTSA1

Overview

BCR148SE6327BTSA1 from Infineon Technologies is an NPN silicon digital transistor with dual isolated transistors in one SOT-363 package, built-in bias resistors (R1 = R2 = 47 kΩ), V_CEO = 50 V, I_C = 100 mA, and AEC-Q101 qualified for automotive interface and switching applications.

For engineers reviewing the BCR148SE6327BTSA1 datasheet, BCR148SE6327BTSA1 pinout, BCR148SE6327BTSA1 application, or BCR148SE6327BTSA1 equivalent, this part serves as a matched dual digital transistor for space-constrained automotive signal conditioning, level translation, and discrete logic interfacing where thermal robustness and bias resistor integration reduce external component count.

Technical Context

This device integrates two electrically isolated NPN transistors with tightly matched h_FE and V_CE(sat) in a single SOT-363 package, enabling compact dual-channel switching without cross-talk. Its built-in R1/R2 bias network (47 kΩ each, ratio 0.9–1.1) simplifies base drive design and ensures reliable turn-on/turn-off at V_i(on) = 1–3 V and V_i(off) = 0.8–1.5 V.

Rated for T_j = 150 °C and qualified to AEC-Q101, it supports automotive ambient conditions with P_tot = 250 mW at T_S ≤ 115 °C and R_thJS ≤ 140 K/W - optimized for PCB-mounted thermal dissipation in engine control modules and body electronics.

Key Specifications

Pinout & Package

BCR148SE6327BTSA1 uses the SOT-363 (SC-88) surface-mount package: 6-pin, 2.1 mm × 2.0 mm footprint, 1.1 mm height, lead-free (RoHS compliant), and designed for automated pick-and-place assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR148SE6327BTSA1, BCR148S E6327 offers identical electrical performance and fit-for-purpose replacement, while NSVD2101PT3G trades dual functionality for higher speed in single-channel designs - making the former ideal for matched pair requirements and the latter suitable only for non-matching, high-frequency single-switch roles.

Availability

BCR148SE6327BTSA1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input stages, and consumer USB-C indicator circuits requiring stable component supply, AEC-Q101 compliance, and dual-transistor integration.

Supply support for BCR148SE6327BTSA1 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, with global manufacturing and quality certification to ISO/TS 16949.

BCR148SE6327BTSA1 belongs to Infineon's BCR family of digital transistors - engineered specifically for automotive signal interfacing, replacing discrete transistor-resistor combinations with integrated, AEC-Q101-qualified solutions.

FAQ

What is the maximum continuous collector current per transistor?

The BCR148SE6327BTSA1 supports a maximum continuous collector current of 100 mA per transistor at T_S ≤ 115 °C. Derating applies above this case temperature, with total power dissipation dropping linearly to zero at 150 °C junction temperature. Pulse operation allows higher peak currents if duty cycle and pulse width remain within permissible limits defined in the datasheet's R_thJS vs. t_p curves.

Is the internal resistor ratio R1/R2 guaranteed across temperature?

Yes - the R1/R2 ratio is specified as 0.9 to 1.1 over the full operating temperature range (−40 °C to +125 °C), ensuring consistent biasing behavior for both transistors across automotive thermal environments. This tight ratio tolerance maintains matched turn-on characteristics and prevents channel skew during temperature transients.

Can BCR148SE6327BTSA1 replace discrete BJT + two resistors in existing designs?

Yes - it is a direct functional replacement for a single NPN transistor plus two 47 kΩ base resistors, with identical pin-compatible layout in SOT-363. Migration requires only footprint update and removal of external resistors; no changes to drive logic or timing are needed due to matched V_i(on)/V_i(off) thresholds and h_FE stability.

Does this part support 5 V logic-level input drive?

Yes - with V_i(on) = 1–3 V and V_i(off) = 0.8–1.5 V, the device reliably switches on with standard 5 V TTL/CMOS logic outputs. The integrated R1 ensures proper base current injection even with weak-drive sources, and the low V_CE(sat) guarantees clean logic-low output levels down to 0.3 V at 10 mA load.