Nexperia USA Inc. BCP56-10HX

Overview

BCP56-10HX 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 2 A peak pulse current. It delivers DC current gain (h_FE) of 63–160 at V_CE = 2 V and I_C = 150 mA, and supports high-temperature operation up to 175 °C junction temperature. It serves as a low-side switch or MOSFET driver in automotive linear regulators and power management circuits.

For engineers reviewing the BCP56-10HX datasheet, BCP56-10HX pinout, BCP56-10HX application, or BCP56-10HX equivalent, key selection criteria include its 80 V breakdown voltage, 1 A DC current capability, SOT223 thermal performance with up to 2.2 W dissipation on 4-layer PCB, AEC-Q101 qualification, and h_FE binning for predictable gain control in analog switching stages.

Technical Context

This discrete NPN bipolar junction transistor operates in linear or saturated switching modes with V_CE(sat) ≤ 500 mV at I_C = 500 mA and I_B = 50 mA. Its f_T of 100–155 MHz enables stable amplification and fast switching up to ~10 MHz in practical designs.

Thermal design relies on its dual-collector SOT223 footprint: R_th(j-a) ranges from 69 K/W (4-layer PCB, 1 cm² collector pad) to 207 K/W (standard FR4 single-sided copper), enabling scalable thermal management across industrial and automotive ambient conditions.

Key Specifications

Pinout & Package

The BCP56-10HX uses the SOT223 (SC-73) surface-mount plastic package with four leads: two collector terminals (pins 2 and 4), one base (pin 1), and one emitter (pin 3). The dual-collector configuration enhances thermal conductivity and current handling without requiring external paralleling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCP56-10HX, BCP56-16H trades guaranteed lower base current for reduced saturation margin under wide h_FE spread, while ZTX653 sacrifices automotive reliability for broader voltage headroom and higher gain-neither is pin- or qualification-compatible without revalidation.

Availability

BCP56-10HX is available at Aetrix Electronics and suitable for automotive linear regulators, MOSFET gate drivers, and industrial low-side switches requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant traceability.

Supply support for BCP56-10HX 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 energy-efficient solutions.

The BCP56H series belongs to Nexperia's AEC-Q101-qualified medium power transistor product line, engineered specifically for robust switching and linear regulation in harsh-temperature automotive and industrial environments.

FAQ

What is the maximum allowable base current for continuous operation?

The absolute maximum DC base current (I_B) is 0.2 A per the datasheet limiting values table. Exceeding this risks metallization failure or bond-wire overheating. For reliable 1 A collector operation with h_FE ≥ 63, typical design uses I_B = 15–20 mA - well within safe limits and ensuring deep saturation without overdrive penalty.

Can BCP56-10HX replace BCP56-16H in existing designs?

Yes, but only if the circuit has sufficient base drive margin to accommodate the lower h_FE (63–160 vs. 100–250). In designs relying on minimum h_FE = 100 for saturation, BCP56-10HX may operate in quasi-saturation, increasing V_CE(sat) and power loss. Verify I_B ≥ I_C/63 at worst-case temperature and voltage.

How does the dual-collector SOT223 package improve thermal performance?

The dual-collector configuration (pins 2 and 4) effectively doubles the copper area connected to the die's collector metallization, reducing thermal resistance from junction to PCB. On a 4-layer board with 1 cm² collector pad, R_th(j-a) drops to 69 K/W - 30% lower than standard SOT223 - enabling 2.2 W dissipation without forced cooling in ambient temperatures up to 85 °C.

Is BCP56-10HX suitable for switching inductive loads like relays or solenoids?

Yes - its 80 V V_CEO, 2 A I_CM, and built-in avalanche ruggedness (per Nexperia's characterization) make it appropriate for inductive switching. Always pair with a reverse-biased flyback diode across the load to clamp inductive kickback; layout should minimize collector loop inductance to prevent voltage overshoot beyond 80 V.