BC846BS/ZLX

Overview

The Nexperia BC846BS/ZLX is a dual NPN general-purpose bipolar junction transistor (BJT) array housed in a compact SOT-363 (SC-88) surface-mount package. It features two fully isolated NPN transistors within a six-pin configuration, designed for space-constrained applications. Key electrical specifications include a collector-emitter voltage (VCEO) of 65 V, a collector-base voltage (VCBO) of 80 V, and an emitter-base voltage (VEBO) of 6 V. The device supports a maximum continuous collector current (IC) of 100 mA per transistor with a total power dissipation (Pd) of 200 mW. The gain-bandwidth product (fT) is rated at 100 MHz, and the DC current gain (hFE) typically ranges from 200 to 450. Operating temperatures extend from -55°C to +150°C.

Feature Summary

• Dual NPN configuration with internal isolation between transistors
• Closely matched current gain and base-emitter voltage characteristics
• Low collector capacitance and low saturation voltage for efficient switching
• AEC-Q101 qualified for automotive reliability standards

Applications

• Current mirror circuits requiring matched transistor pairs
• Differential amplifier stages in signal processing
• General-purpose switching and amplification in consumer electronics
• Automotive electronic control units and sensor interfaces

Procurement Notes

Verify the specific suffix /ZLX against official Nexperia documentation to confirm tape-and-reel quantity and packaging details. Ensure compatibility with AEC-Q101 requirements if used in automotive designs. Cross-reference datasheet revision dates to confirm parameter stability. Confirm RoHS compliance status for environmental regulations. Validate pinout alignment with SOT-363 standard before PCB layout finalization.

Selection Notes

Select this component when board space is limited and dual matched NPN transistors are required. Compare power dissipation limits against thermal constraints in dense assemblies. Evaluate hFE matching requirements for precision analog applications like current mirrors. Consider the 100 MHz frequency response for high-speed switching needs. Verify that the 65 V rating exceeds circuit peak voltages under all operating conditions.

Part Context

This part belongs to the Nexperia BC846 series of small-signal NPN transistors. Variants include single-transistor packages like BC846B in SOT-23 and other dual configurations such as BC846BS. The BC846BS/ZLX specifically denotes the dual NPN version in the ultra-small SOT-363 package, offering a drop-in replacement for larger dual transistor footprints while maintaining similar electrical performance profiles.

Replacement Considerations

Direct substitutes include BC846BS,115 and BCM846BSX from Nexperia. Other manufacturers offer equivalent parts like 2N3904 arrays or SS8050 duals, but verify pinout and hFE matching accuracy. Ensure replacement parts meet the same AEC-Q101 qualification if automotive use is intended.