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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Nexperia USA Inc. BCP56-16T-QX

Name: BCP56-16T-QX
Brand: Nexperia USA Inc.
SKU: BCP56-16T-QX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCP56-16T-QX

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-261-4, TO-261AA

Datasheet:: BCP56-16T-QX.pdf

Description:: TRANS NPN 80V 1A SOT-223

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BCP56-16T-QX 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 high-side switch or MOSFET driver in automotive power management circuits with thermal resistance as low as 70 K/W on 4-layer PCBs.

For engineers reviewing the BCP56-16T-QX datasheet, BCP56-16T-QX pinout, BCP56-16T-QX application, or BCP56-16T-QX equivalent, key selection criteria include its 80 V breakdown voltage, 1.8 W maximum power dissipation on optimized PCB layout, AEC-Q101 qualification, and dual-collector SOT223 thermal design enabling stable operation in linear regulators and amplifier stages.

Technical Context

This NPN bipolar junction transistor operates in active, saturation, and cutoff regions with verified DC current gain of 100–250 under pulsed conditions (t_p ≤ 300 μs, duty ≤ 0.02). Its dual-collector configuration (pins 2 and 4) enhances thermal conduction and supports higher continuous current handling in surface-mount power applications.

The device meets AEC-Q101 stress test requirements for automotive use, with absolute maximum ratings including 100 V V_CBO, 5 V V_EBO, and 150 °C junction temperature. Safe operating area (SOA) is defined up to 1 A DC and 2 A single-pulse peak current at V_CE ≤ 80 V.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	80 V - Maximum collector-emitter voltage before breakdown; enables use in 48 V automotive systems and industrial 24–48 V rails.
I_C	1 A continuous - Supports sustained load switching in linear regulators and gate drivers without derating at T_amb ≤ 25 °C.
h_FE	100–250 at V_CE = 2 V, I_C = 150 mA - Ensures reliable base drive efficiency for MOSFET gate control with minimal base current overhead.
P_tot	1.8 W on 4-layer FR4 PCB with 1 cm² collector pad - Delivers higher thermal headroom than standard SOT223 variants for extended linear-mode operation.
R_th(j-a)	70 K/W - Low thermal resistance enables stable junction temperature below 125 °C in compact automotive modules with limited airflow.
f_T	100–155 MHz - Sufficient bandwidth for fast-switching applications such as PWM-controlled amplifiers and high-frequency driver stages.
V_CE(sat)	≤ 500 mV at I_C = 500 mA, I_B = 50 mA - Minimizes conduction loss and self-heating during saturated switching in power control paths.

Pinout & Package

SOT223 (SC-73) plastic surface-mount package with 4 leads and integrated heatsink tab; pin 1 = Base, pins 2 & 4 = Collector (electrically common), pin 3 = Emitter.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input node requiring ~50 mA base drive for full 500 mA collector conduction; low-impedance path for bias network connection.
2	Collector	Main high-current output terminal; electrically tied to pin 4 for doubled copper area and improved thermal transfer to PCB heatsink.
3	Emitter	Reference node for current sensing and feedback; connected directly to ground plane or low-impedance return path in regulator topologies.
4	Collector	Secondary collector terminal; shares internal die connection with pin 2 to reduce thermal resistance and increase current-carrying capacity.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive-grade reliability across temperature cycling, humidity, and mechanical shock per discrete semiconductor stress test standard.
Dual-collector thermal design	Pins 2 and 4 provide parallel current paths and doubled solder-pad contact area, reducing R_th(j-a) by up to 30% vs. standard 3-pin SOT223.
Three h_FE bins	BCP56-16T-QX offers 100–250 h_FE, enabling precise gain matching in matched-pair amplifier or current mirror designs without external trimming.
High SOA at 80 V	Supports linear operation up to 1 A at V_CE = 40 V, making it suitable for unregulated 24/48 V supply buffering and analog pass-transistor applications.

Applications

Linear Voltage Regulators

MOSFET Drivers

Use Scenario: Used as series pass transistor in adjustable LDOs delivering 1–3 A at 3.3 V to 12 V from 24 V automotive battery input.

IC Role / Device Role / Timing Role: NPN pass element controlling output voltage via feedback loop; operates in linear region with dynamic thermal management.

Use Value: 1.8 W power dissipation capability and 70 K/W thermal resistance enable stable regulation without external heatsink in space-constrained ECUs.

Use Scenario: Driving high-input-capacitance N-channel MOSFET gates in 12 V/24 V motor control H-bridges.

IC Role / Device Role / Timing Role: High-current NPN switch providing fast turn-on pulse (I_C ≥ 500 mA) to charge gate capacitance rapidly.

Use Value: 500 mV V_CE(sat) at 500 mA ensures minimal voltage drop during gate charging, improving MOSFET switching speed and reducing driver-stage losses.

High-Side Switches

Power Amplifiers

Use Scenario: Controlling 12 V lighting loads (LED arrays, solenoids) directly from microcontroller GPIO via base resistor.

IC Role / Device Role / Timing Role: Medium-power NPN configured in emitter-follower or common-emitter topology for load switching with reverse-polarity protection.

Use Value: 80 V V_CEO withstands load-dump transients up to 60 V, meeting ISO 7637-2 Pulse 5a requirements for automotive electronics.

Use Scenario: Class-A audio preamplifier stage or RF buffer amplifier in telematics modules.

IC Role / Device Role / Timing Role: Linear amplification device biased in active region; delivers low-distortion signal gain with f_T > 100 MHz.

Use Value: 155 MHz typical f_T and flat h_FE response up to 150 mA support wideband analog signal integrity in infotainment front-end circuits.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BCP56-10T-Q	h_FE = 63–160 at same test conditions; lower gain bin for predictable low-gain switching.	Preferred where consistent low-current gain is required to avoid overdrive in digital logic interface circuits.	Select when tighter h_FE tolerance is needed and 100–250 spread introduces variability in closed-loop gain stability.
ZTX951	TO-92 package; 60 V V_CEO; 1.5 A I_C; no AEC-Q101 qualification.	Used in non-automotive consumer or industrial prototypes where qualification is not mandated.	Choose only for cost-sensitive non-automotive designs; lacks thermal performance and automotive reliability validation of BCP56-16T-QX.

Compared with BCP56-10T-Q, the BCP56-16T-QX provides higher and wider h_FE range for improved base drive margin in MOSFET drivers, while ZTX951 trades AEC-Q101 compliance and SOT223 thermal performance for lower cost and through-hole assembly compatibility.

Availability

BCP56-16T-QX is available at Aetrix Electronics and suitable for automotive power management, industrial linear regulators, and high-reliability MOSFET driver circuits requiring stable component supply and long-term lifecycle continuity.

Supply support for BCP56-16T-QX 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 essential efficiency technologies, delivering high-performance, high-reliability discrete and logic devices for automotive, industrial, and mobile markets.

The BCP56T-Q series belongs to Nexperia's AEC-Q101-qualified medium power transistor product line, engineered specifically for robust operation in automotive power control, linear regulation, and switching applications demanding thermal resilience and long-term reliability.

FAQ

What is the maximum continuous collector current rating for BCP56-16T-QX?

The BCP56-16T-QX is rated for 1 A continuous collector current (I_C) at T_amb = 25 °C with appropriate PCB thermal design. Derating applies above 25 °C ambient, reaching zero current at 150 °C junction temperature per the power derating curve in Figure 1.

Is BCP56-16T-QX pin-compatible with other BCP56T-Q series transistors?

Yes - all BCP56T-Q series devices share identical SOT223 (SC-73) pinout: pin 1 = Base, pins 2 & 4 = Collector, pin 3 = Emitter. The only functional difference lies in h_FE binning (e.g., BCP56-10T-Q: 63–160; BCP56-16T-QX: 100–250), allowing direct substitution where gain requirements align.

Does BCP56-16T-QX require a heatsink in typical automotive applications?

No external heatsink is required when mounted on a 4-layer FR4 PCB with ≥1 cm² copper area on the collector pads (pins 2 & 4), achieving R_th(j-a) = 70 K/W. This allows safe operation at 1 A with T_j < 125 °C in ambient temperatures up to 85 °C, per thermal characteristics in Table 7.

What does the "QX" suffix indicate in BCP56-16T-QX?

The "QX" suffix denotes Nexperia's qualified automotive-grade variant, confirming full AEC-Q101 qualification and traceable manufacturing per automotive quality standards. It is functionally identical to BCP56-16T-Q but carries additional process and test validation for automotive deployment.

BCP56-16T-QX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: BCP56T-Q

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 1 A

Voltage - Collector Emitter Breakdown (Max):: 80 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 50mA, 500mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 150mA, 2V

Power - Max:: 600 mW

Frequency - Transition:: 155MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

BCP56-16T-QX FAQ

1.How can I place an order for BCP56-16T-QX through Aetrix?

Please submit a Request for Quotation (RFQ) for BCP56-16T-QX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for BCP56-16T-QX reliable?

The price and inventory of BCP56-16T-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP56-16T-QX is usually 5 days.

3.What payment methods are accepted for BCP56-16T-QX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP56-16T-QX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCP56-16T-QX?

BCP56-16T-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCP56-16T-QX order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for BCP56-16T-QX?

For technical support, including BCP56-16T-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP56-16T-QX requirements.

6.How does Aetrix verify that BCP56-16T-QX is sourced from the original manufacturer or authorized distributors?

All BCP56-16T-QX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BCP56-16T-QX meets industry standards.

7.What is the process for return or replacement of BCP56-16T-QX?

All BCP56-16T-QX units undergo pre-shipment inspection (PSI). If there is an issue with BCP56-16T-QX, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The BCP56-16T-QX part is unused and in its original packaging.

Return procedure for BCP56-16T-QX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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