Nexperia USA Inc. BCP56-16-QF

Overview

BCP56-16-QF from Nexperia is an AEC-Q101-qualified NPN medium power transistor in SOT223 (SC-73) package, rated for 80 V V_CEO, 1 A continuous collector current, and 100–250 h_FE at V_CE = 2 V / I_C = 150 mA. It serves as a low-side switch or MOSFET driver in automotive linear regulators and battery-powered power management circuits.

For engineers reviewing the BCP56-16-QF datasheet, BCP56-16-QF pinout, BCP56-16-QF application, or BCP56-16-QF equivalent, this page delivers verified electrical parameters, thermal derating behavior, junction-to-ambient resistance under three PCB mounting conditions, and validated automotive-grade reliability data - all critical for robust discrete power stage design.

Technical Context

This device operates as a silicon NPN bipolar junction transistor with a maximum collector-emitter breakdown voltage of 80 V and peak collector current capability of 2 A (single pulse, t_p ≤ 1 ms). Its DC current gain is binned to 100–250 at 150 mA, enabling precise biasing in analog amplification and switching stages where gain stability across temperature is required.

Thermal performance is defined by three R_th(j-a) values: 192 K/W (standard footprint), 125 K/W (1 cm² collector pad), and 93 K/W (6 cm² collector pad), directly linking PCB layout decisions to safe operating area. The device meets AEC-Q101 stress test requirements for automotive use, including temperature cycling, HTRB, and ESD.

Key Specifications

Pinout & Package

SOT223 (SC-73) surface-mount plastic package with 4 leads: two collector terminals (pins 2 and 4) for enhanced thermal and current handling, one base (pin 1), and one emitter (pin 3). The dual-collector configuration improves heat spreading and reduces effective thermal resistance when mounted on extended copper areas.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCP56-10-Q and ZTX653, BCP56-16-QF provides the narrowest h_FE bin and highest thermal performance in SMT form factor, making it optimal for automotive power stages where gain predictability and PCB-level heatsinking are critical.

Availability

BCP56-16-QF is available at Aetrix Electronics and suitable for automotive power management, MOSFET gate driving, and linear regulator applications requiring stable component supply, AEC-Q101 compliance, and SMT-compatible thermal performance.

Supply support for BCP56-16-QF 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 focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.

The BCP56-Q series belongs to Nexperia's AEC-Q101-qualified medium-power transistor product line, engineered specifically for automotive linear regulators, low-side switches, and MOSFET drivers where robustness, thermal efficiency, and gain consistency are essential.

FAQ

What is the maximum allowable base current for continuous operation?

The absolute maximum DC base current is 0.3 A per the limiting values table. For reliable long-term operation, design base drive to stay below 0.25 A with appropriate current-limiting resistor, especially at elevated temperatures where β degradation increases base current demand. Exceeding 0.3 A risks metallization failure or bond wire overheating.

Can BCP56-16-QF replace BCP56-10-Q in existing designs without modification?

Yes, pin-to-pin and package-compatible, but gain distribution differs: BCP56-16-QF guarantees h_FE ≥ 100 at 150 mA, while BCP56-10-Q starts at 63. Circuits relying on minimum gain for saturation (e.g., Darlington drivers) may require verification of V_CE(sat) margin; otherwise, drop-in replacement is valid.

How does the dual-collector configuration affect PCB layout?

Pins 2 and 4 are internally shorted to the collector, so both must be connected to the same net - ideally a large copper pour acting as a thermal plane. The recommended reflow footprint (Fig. 10) specifies 6.15 mm × 3.85 mm solder land for pin 2 and identical dimensions for pin 4, with thermal vias encouraged under the central pad to inner ground layers.

Is the 1.35 W power dissipation rating achievable on standard FR4 without special layout?

No - the 1.35 W rating assumes a 6 cm² copper pad for the collector terminals on a single-sided FR4 board. On standard footprint (no extended pad), P_tot drops to 0.65 W. To achieve full rating, implement dedicated collector thermal pads with ≥6 cm² area and ≥6 thermal vias to internal planes, per Nexperia's AN10327 layout guidelines.