Infineon Technologies BCM856SE6327BTSA1

Overview

BCM856SE6327BTSA1 from Infineon Technologies is a PNP silicon AF transistor array comprising two galvanically isolated, precision-matched PNP transistors in a single SOT-363 (SC-70-6) package. It delivers ∆IC ≤ 10% matching at IB = 1 µA and VCE = 1.0 V, supports 65 V VCEO, 100 mA IC continuous, and exhibits low VCEsat of 90 mV (typ.) at IC = 10 mA/IB = 0.5 mA - ideal for high-accuracy current mirror circuits in automotive sensor signal conditioning.

For engineers reviewing the BCM856SE6327BTSA1 datasheet, BCM856SE6327BTSA1 pinout, BCM856SE6327BTSA1 application, or BCM856SE6327BTSA1 equivalent, key selection criteria include matched pair tolerance, dual-isolation integrity, AEC-Q101 qualification, thermal resistance (RthJS = 140 K/W), and SOT-363 footprint compatibility with space-constrained PCB layouts.

Technical Context

This dual PNP array is engineered for precision analog current replication where thermal tracking and parameter symmetry are critical. Its matched hFE (200–450) and tight ∆IC ensure stable biasing across temperature, while galvanic isolation between TR1 and TR2 prevents crosstalk in differential or mirrored topologies.

The device operates with VBE(ON) = 600–820 mV (IC = 2–10 mA), VCEsat ≤ 300 mV (IC = 100 mA), and fT = 250 MHz - enabling use in audio preamp bias networks and fast-switching analog control loops up to mid-frequency ranges.

Key Specifications

Pinout & Package

SOT-363 (SC-70-6) surface-mount package with 1.25 mm × 2.1 mm footprint, 0.65 mm pitch, and exposed thermal pad (no internal thermal slug connection). Pin 1 marked by laser dot; orientation defined per JEDEC MO-203-DA.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual PNP matched transistor array applications.

Compared with BC846BPDW1T1G and MBT3906DW1T1G, BCM856SE6327BTSA1 uniquely guarantees ∆IC ≤ ±10% and 65 V VCEO - making it the sole choice for AEC-Q101-compliant, high-precision current mirror designs requiring thermal stability and rail margin.

Availability

BCM856SE6327BTSA1 is available at Aetrix Electronics and suitable for automotive cabin sensors, industrial 4–20 mA transmitters, audio preamplifier bias networks, and medical biopotential front-ends requiring stable component supply and long-term lifecycle continuity.

Supply support for BCM856SE6327BTSA1 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.

The BCM856S series belongs to Infineon's discrete bipolar transistor portfolio, designed specifically for high-reliability analog signal conditioning in automotive and industrial environments where parameter matching and AEC-Q101 compliance are mandatory.

FAQ

Is BCM856SE6327BTSA1 pin-compatible with BC846S?

No. BCM856SE6327BTSA1 uses SOT-363 with pinout E1-B1-C2-E2-B2-C1, while BC846S is a single-transistor SOT-23 device with different pin count and assignment. The BCM856S is a dual-array part; BC846S is a single PNP. They serve fundamentally different circuit roles and share no mechanical or electrical compatibility.

What does "galvanic isolation" mean for the two transistors in this package?

Galvanic isolation means the two PNP transistors (TR1 and TR2) have electrically separate collector, base, and emitter terminals with no shared substrate or internal conductive path. This eliminates leakage, crosstalk, and latch-up risks between channels - essential for differential sensing and isolated current mirroring in mixed-signal systems.

Can BCM856SE6327BTSA1 be used in linear amplifier applications?

Yes - its hFE range (200–450), low VCEsat, and matched characteristics support Class-A and AB biasing in low-noise preamplifiers. However, it is not optimized for RF or high-speed switching; fT = 250 MHz limits usable bandwidth to ≤10 MHz in closed-loop configurations with adequate phase margin.

Does the AEC-Q101 qualification cover both transistors independently?

Yes. AEC-Q101 testing was performed on the complete BCM856S device, including parametric verification of both transistors under temperature cycling, HTRB, and ESD stress. Matching performance (∆IC) and individual VCEO/VCEsat were confirmed across all qualification lots per AEC-Q101 Rev D requirements.