Infineon Technologies BC846PNE6327BTSA1

Overview

BC846PNE6327BTSA1 from Infineon Technologies is a dual NPN/PNP silicon small-signal transistor array in a single SOT-363 (SC-74) package, configured as galvanically isolated complementary pairs. It delivers V_CEO = 65 V (NPN), V_CEO = 45 V (PNP), h_FE up to 450 at I_C = 2 mA, and V_CE(sat) ≤ 300 mV at I_C = 10 mA / I_B = 0.5 mA - used in AF input stages, push-pull drivers, and level-shifting circuits in automotive body control modules.

For engineers reviewing the BC846PNE6327BTSA1 datasheet, BC846PNE6327BTSA1 pinout, BC846PNE6327BTSA1 application, or BC846PNE6327BTSA1 equivalent, key selection criteria include complementary pair matching, low saturation voltage for efficient switching, AEC-Q101 qualification, thermal resistance (R_thJS ≤ 140 K/W), and SOT-363 footprint compatibility with space-constrained PCB layouts.

Technical Context

This device integrates two electrically isolated transistors - one NPN (BC846PN) and one PNP (BC846UPN) - enabling complementary operation without external isolation. Its design supports linear amplification and digital switching in single-supply configurations, with matched h_FE spread and symmetrical V_BE(sat) characteristics across both devices.

The SOT-363 package provides six terminals with defined pinout (E1-B1-C2-E2-B2-C1), supporting independent biasing of each transistor. Thermal performance is characterized by junction-to-solder-point resistance ≤140 K/W, validated under TS ≤ 115°C for BC846PN/UPN variants, enabling reliable operation in ambient temperatures up to 125°C.

Key Specifications

Pinout & Package

SOT-363 (SC-74) surface-mount package with 6-pin configuration, 0.65 mm pitch, and lead-free (RoHS-compliant) finish. Dimensions: 2.9 × 1.9 × 1.1 mm (L × W × H).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar complementary transistor array applications.

Compared with BC846PNE6327BTSA1, BC847PNE6327HTSA1 trades voltage rating for cost, while MBT3904DW1T1G sacrifices complementarity for higher integration density - neither offers AEC-Q101 qualification or matched NPN/PNP V_CE(sat) performance.

Availability

BC846PNE6327BTSA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB-C power delivery feedback circuits, and smart lighting dimming control requiring stable component supply and long-term lifecycle support.

Supply support for BC846PNE6327BTSA1 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 power devices, with global manufacturing and quality certification to ISO/TS 16949.

This part belongs to Infineon's BC846/BC847PN family of AEC-Q101-qualified complementary transistor arrays, designed specifically for space-constrained, high-reliability automotive signal conditioning and discrete switching applications.

FAQ

Is BC846PNE6327BTSA1 pin-compatible with BC847PNE6327HTSA1?

No. While both use SOT-363 packaging, BC846PNE6327BTSA1 has NPN/PNP pairing with V_CEO = 65 V / 45 V, whereas BC847PNE6327HTSA1 uses NPN/NPN pairing with V_CEO = 45 V / 45 V. Pin 3 (C2) and Pin 6 (C1) serve different transistor types, making direct substitution unsafe without circuit redesign.

What is the maximum continuous collector current per transistor?

The absolute maximum DC collector current is 100 mA per transistor, as specified in the "Maximum Ratings" table. Derating is required above 25°C ambient: at T_S = 115°C, total package power dissipation is limited to 250 mW, implying ~125 mA per device only if perfectly balanced and thermally coupled - practical design limit remains 100 mA continuous.

Does this device require external base resistors in switching applications?

Yes. The BC846PNE6327BTSA1 lacks integrated base resistors. For reliable saturation at I_C = 10 mA, a 10 kΩ resistor is typical for 3.3 V GPIO drive; for 100 mA switching, base current must exceed 5 mA, requiring ≤680 Ω with 3.3 V drive. Failure to limit base current risks exceeding I_BM = 100 mA peak rating.

Can BC846PNE6327BTSA1 be used in linear amplifier configurations?

Yes - its h_FE stability (200–450), low V_CE(sat), and f_T = 250 MHz support Class-A and Class-AB audio preamplifier stages. However, thermal derating must be applied: at 250 mW total package dissipation, junction temperature rises ~35 K above solder point, limiting usable quiescent current in high-gain configurations without heatsinking.