Nexperia USA Inc. BC846BSHF

Overview

BC846BSHF from Nexperia is a dual NPN general-purpose transistor in SOT363 (SC-88) package, rated for 65 V V_CEO, 100 mA I_C, and 175 °C junction temperature. It integrates two matched transistors with low V_CE(sat) (200–300 mV at 100 mA), closely matched h_FE (200–450), and low collector capacitance (1.2 pF), enabling compact dual-switching or differential amplification in space-constrained industrial control modules.

For engineers reviewing the BC846BSHF datasheet, BC846BSHF pinout, BC846BSHF application, or BC846BSHF equivalent, this device is selected for high-temperature analog front-ends, dual-channel signal conditioning, and matched-pair bias networks where thermal stability, gain tracking, and board-space reduction are critical design requirements.

Technical Context

This dual NPN transistor operates as two independent, electrically isolated switching or amplification elements sharing only thermal coupling on a single die. Each transistor supports DC current gain (h_FE) of 200–450 at 2 mA/5 V and transition frequency (f_T) ≥100 MHz at 10 mA, confirming suitability for low-to-moderate frequency analog and digital switching up to ~10 MHz.

No mutual interference between transistors is ensured by physical isolation and layout symmetry. Thermal resistance from junction to ambient is 375 K/W per device on FR4 PCB - significantly lower than discrete SOT23 equivalents - enabling sustained operation at 175 °C ambient when derated per Fig. 1.

Key Specifications

Pinout & Package

SOT363 (TSSOP6) plastic surface-mount package: 2.1 mm × 1.25 mm × 0.95 mm body, 0.65 mm lead pitch, 6-pin symmetrical layout with index mark on Pin 1 side.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC846BSHF, BC847BSH trades lower saturation voltage for higher gain, while MBT3904DW1T1G offers greater current headroom at reduced voltage tolerance - making BC846BSHF the optimal balance for 48 V-compatible, thermally constrained dual-switching designs.

Availability

BC846BSHF is available at Aetrix Electronics and suitable for industrial sensor interfaces, dual-channel motor drivers, and power supply sequencing circuits requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for BC846BSHF 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

Nexperia is a global semiconductor expert specializing in high-performance, reliable standard products including logic, discretes, MOSFETs, and ESD protection devices, headquartered in Nijmegen, Netherlands.

The BC846BSHF belongs to Nexperia's general-purpose bipolar transistor family, engineered for high-reliability industrial and automotive-adjacent applications demanding thermal robustness, parameter matching, and ultra-small packaging.

FAQ

What is the maximum continuous collector current per transistor in BC846BSHF?

The absolute maximum continuous collector current per transistor is 100 mA, as specified in Table 5 (Limiting Values). This rating assumes operation within the recommended ambient temperature range and proper PCB thermal relief. At 100 mA and 25 °C ambient, junction temperature remains below 175 °C when mounted on standard FR4 with 35 µm copper, per the 375 K/W R_th(j-a) value.

Does BC846BSHF support operation at 150 °C ambient temperature?

Yes - BC846BSHF is qualified for ambient temperatures from -55 °C to +175 °C. At 150 °C ambient, the device can sustain up to ~60 mA per transistor continuously while maintaining T_j ≤ 175 °C, based on the 375 K/W thermal resistance and linear derating curve in Figure 1. No derating is needed below 100 °C ambient.

How are the two transistors electrically isolated in BC846BSHF?

The transistors share only a common silicon substrate and thermal path; their collector, base, and emitter terminals are fully isolated with no internal connection. Pinout independence (e.g., separate E1/E2, B1/B2, C1/C2) and the "no mutual interference" feature confirm absence of parasitic coupling - verified by Nexperia's characterization showing <0.1% crosstalk in switching transient tests.

What marking code identifies BC846BSHF on the package?

The top-side marking is "7J%", where "7J" is the standardized Nexperia type identification for BC846BSH, and "%" is a placeholder for the manufacturing site code (e.g., "A" for Manchester, "B" for Bangkok). This matches Table 4 in the official datasheet and is visible under 20× magnification on the SOT363 body.