Infineon Technologies BCR198SE6327BTSA1

Overview

BCR198SE6327BTSA1 from Infineon Technologies is a PNP silicon digital transistor with integrated bias resistors (R1 = R2 = 47 kΩ), designed for switching, inverting, interface, and driver circuits in automotive and industrial control modules. It features V_CEO = 50 V, I_C = 100 mA, V_CE(sat) ≤ 0.3 V at I_C = 10 mA/I_B = 0.5 mA, h_FE ≥ 70, and AEC-Q101 qualification.

For engineers reviewing the BCR198SE6327BTSA1 datasheet, BCR198SE6327BTSA1 pinout, BCR198SE6327BTSA1 application, or BCR198SE6327BTSA1 equivalent, key selection criteria include built-in resistor matching, SOT363 dual-transistor isolation, thermal resistance (R_thJS ≤ 140 K/W), and guaranteed operation up to T_j = 150 °C in space-constrained PCB layouts.

Technical Context

This dual-die PNP digital transistor integrates two electrically isolated transistors in a single SOT363 package with matched h_FE, V_CE(sat), and input threshold characteristics across temperature. Its internal R1/R2 ratio of 0.9–1.1 enables consistent logic-level switching without external bias networks.

The device operates as a current-controlled switch with defined Vi(on) (1–3 V) and Vi(off) (0.8–1.5 V) thresholds, supporting direct microcontroller GPIO interfacing. Thermal derating follows a fixed P_tot = 250 mW limit at T_S ≤ 115 °C, with R_thJS ≤ 140 K/W enabling reliable performance in thermally dense automotive ECUs.

Key Specifications

Pinout & Package

SOT363 (SC-88) 6-pin surface-mount package with dual isolated PNP transistor structure and exposed thermal pad (not electrically connected). Pin 1 = B1, Pin 2 = E1, Pin 3 = C2, Pin 4 = E2, Pin 5 = B2, Pin 6 = C1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR198SE6327BTSA1, BCR198W offers identical biasing but no channel isolation, while NSVD120DP033T1G sacrifices dual functionality and qualification for lower unit cost in non-automotive contexts.

Availability

BCR198SE6327BTSA1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, and smart home sensor hubs requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.

Supply support for BCR198SE6327BTSA1 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 infrastructure.

BCR198SE6327BTSA1 belongs to Infineon's BCR series of digital transistors, engineered specifically for high-reliability, space-constrained switching in automotive and industrial environments where integrated biasing and AEC-Q101 validation are mandatory.

FAQ

What is the maximum junction temperature and how does it affect continuous operation?

The absolute maximum junction temperature is 150 °C. Continuous operation requires maintaining T_j ≤ 150 °C via thermal design-using the specified R_thJS ≤ 140 K/W and derating P_tot to 250 mW at T_S ≤ 115 °C. Exceeding this limit risks parametric shift and accelerated failure.

Can BCR198SE6327BTSA1 be used in linear amplifier configurations?

No-it is optimized for saturated switching, not linear operation. Its h_FE variation across I_C, lack of guaranteed linearity specs, and built-in bias resistors make it unsuitable for analog amplification. Use dedicated general-purpose transistors like BC847 for such roles.

How are the two transistors isolated internally, and what is the minimum inter-channel leakage?

The two PNP transistors share no conductive path; isolation is achieved through separate die regions in the multichip SOT363 package. While exact inter-channel leakage isn't specified, the datasheet confirms "two internally isolated transistors with good matching," and typical isolation exceeds 100 MΩ at 25 °C per industry-standard test methods for dual-die packages.

Is the SOT363 footprint compatible with standard pick-and-place equipment?

Yes-the SOT363 outline conforms to JEDEC MO-203-DA standards, with 0.65 mm pitch, 1.3 mm × 2.1 mm body, and coplanar leads. It is supported by all major SMT assembly lines, including those using 0201-class nozzles and vision-guided placement with fiducial alignment.