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

Nexperia USA Inc. BCP56-16TX

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

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Part No.:: BCP56-16TX

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: BCP56-16TX.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BCP56-16TX from Nexperia is an NPN medium power bipolar junction transistor in SOT223 (SC-73) package, rated for 80 V V_CEO, 1 A continuous collector current, and 250 h_FE at I_C = 150 mA / V_CE = 2 V. It serves as a high-side switch or linear regulator pass element in industrial power management circuits requiring robust thermal performance on standard FR4 PCBs.

For engineers reviewing the BCP56-16TX datasheet, BCP56-16TX pinout, BCP56-16TX application, or BCP56-16TX equivalent, this page delivers verified electrical parameters, validated thermal derating curves, confirmed SOT223 pin mapping, and real-world use cases in MOSFET driver stages and voltage regulation feedback paths.

Technical Context

This transistor operates with a minimum DC current gain of 100 at 150 mA collector current and 2 V V_CE, enabling stable biasing in Class-A amplifier and switching regulator output stages. Its 80 V V_CEO rating supports operation across 24 V and 48 V industrial bus systems without secondary clamping.

The device exhibits 500 mV V_CE(sat) at I_C = 500 mA / I_B = 50 mA, ensuring low conduction loss in high-side load switching applications. Thermal resistance to ambient ranges from 70 K/W (4-layer PCB, 1 cm² collector pad) to 209 K/W (standard single-sided FR4), directly informing heatsink design and layout decisions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	80 V - Maximum safe collector-emitter voltage under open-base condition; enables use in 48 V supply rails with margin.
I_C	1 A continuous - Sustained current handling capability at T_amb ≤ 25 °C; defines maximum steady-state load drive capacity.
h_FE	100–250 at I_C = 150 mA - Confirmed DC current gain range supporting predictable base drive sizing in linear and switching modes.
V_CE(sat)	≤ 500 mV at I_C = 500 mA / I_B = 50 mA - Low saturation voltage minimizes power dissipation in on-state switching applications.
P_tot	1.8 W max on 4-layer FR4 with 1 cm² collector pad - Defines absolute thermal limit before junction temperature exceeds 150 °C.
f_T	100–155 MHz at V_CE = 5 V / I_C = 50 mA - Supports high-frequency switching up to ~10 MHz in optimized driver circuits.
R_th(j-a)	70–209 K/W - Thermal resistance varies with PCB construction; critical for calculating junction temperature rise in real layouts.

Pinout & Package

SOT223 (SC-73) surface-mount plastic package with integrated heatsink tab (pin 4 connected to collector); 4-terminal configuration optimized for thermal dissipation on standard PCBs.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input node; requires current-limited drive to achieve target I_C based on h_FE range.
2	Collector	Main current path input; electrically tied to pin 4 for enhanced thermal transfer to PCB copper pour.
3	Emiter	Current return path; common reference for base drive and load connection in high-side configurations.
4	Collector	Heatsink terminal; must be soldered to ≥1 cm² copper area for rated P_tot and thermal reliability.

Key Features

Feature	Design Value
Three h_FE selections	BCP56-16TX offers 100–250 h_FE, enabling precise gain matching in parallel-output or feedback-critical linear regulators.
High power dissipation	1.8 W max on 4-layer board allows direct replacement of TO-220 transistors in space-constrained industrial modules.
Peak collector current	2 A single-pulse rating supports surge handling in motor gate drivers and inrush-limited power supplies.
Thermal resistance optimization	70 K/W R_th(j-a) with 4-layer PCB enables >1.2 W continuous dissipation without external heatsink in ambient ≤50 °C.

Applications

Linear Voltage Regulators

MOSFET Drivers

Use Scenario: Pass transistor in adjustable 3–24 V linear regulator supplying microcontroller subsystems.

IC Role / Device Role / Timing Role: NPN pass element controlling output voltage via emitter-follower configuration with feedback to base.

Use Value: 500 mV V_CE(sat) limits dropout voltage and improves efficiency at 500 mA load; 80 V rating accommodates wide input range.

Use Scenario: Level-shifting and current-boosting stage driving high-capacitance N-channel MOSFET gates in half-bridge inverters.

IC Role / Device Role / Timing Role: High-current switch translating logic-level PWM signals into fast, high-slew-rate gate drive pulses.

Use Value: 155 MHz f_T ensures <100 ns turn-on delay; 2 A I_CM safely handles gate charge peaks during switching transitions.

High-Side Switches

Power Management

Use Scenario: Load switch controlling 12–48 V DC loads (e.g., solenoids, sensors) in programmable logic controllers.

IC Role / Device Role / Timing Role: NPN configured as emitter-follower high-side switch with base driven by microcontroller GPIO through current-limiting resistor.

Use Value: 100–250 h_FE range permits accurate base resistor calculation; SOT223 pin 4 collector tab simplifies thermal anchoring to PCB ground plane.

Use Scenario: Current-sense amplifier front-end or overcurrent protection latch in battery-powered industrial telemetry nodes.

IC Role / Device Role / Timing Role: Transistor operating in active region to amplify small shunt voltage signals or act as latching comparator output stage.

Use Value: Stable h_FE across -55 °C to 100 °C ensures consistent gain in uncontrolled environments; low V_BE drift supports precision analog functions.

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
BCP56-10TX	h_FE = 63–160 at I_C = 150 mA - lower and narrower gain band than BCP56-16TX.	Suitable where tighter h_FE tolerance reduces base drive variability but sacrifices maximum current amplification.	Select when circuit stability demands reduced h_FE spread, such as in fixed-gain current mirrors or precision bias networks.
ZTX653	TO-92 package, 100 V V_CEO, 1.5 A I_C, h_FE = 100–800 - higher voltage rating and wider gain range, but no integrated heatsink tab.	Used in prototyping or low-volume assemblies where through-hole mounting and manual heatsinking are acceptable.	Choose only if SOT223 footprint is unavailable and thermal budget allows discrete heatsink attachment; not drop-in compatible.

Compared with BCP56-10TX and ZTX653, the BCP56-16TX delivers optimal balance of gain consistency (100–250), thermal performance (70 K/W on 4-layer PCB), and surface-mount manufacturability-making it preferred for volume production of industrial power modules where layout density and thermal predictability are critical.

Availability

BCP56-16TX is available at Aetrix Electronics and suitable for linear voltage regulators, MOSFET drivers, and high-side switches requiring stable component supply, consistent h_FE binning, and verified thermal performance on standard FR4 PCBs.

Supply support for BCP56-16TX 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 and industrial-grade components.

The BCP56T series belongs to Nexperia's medium-power bipolar transistor product line, engineered specifically for industrial power control applications demanding robust thermal behavior, tight gain binning, and SMT manufacturability without compromising ruggedness.

FAQ

What is the maximum continuous collector current for BCP56-16TX at 75 °C ambient?

At T_amb = 75 °C, the maximum continuous collector current is derated to approximately 0.75 A. This value is derived from the 1.8 W P_tot rating and the 70 K/W R_th(j-a) on 4-layer PCB: ΔT = 1.8 W × 70 K/W = 126 K → T_j = 75 + 126 = 201 °C (exceeds 150 °C limit), so actual I_C must be reduced to maintain T_j ≤ 150 °C. Per Fig. 1, P_tot drops to ~1.35 W at 75 °C, yielding I_C ≈ 0.75 A assuming V_CE ≈ 1.8 V in linear operation.

Can BCP56-16TX replace BCP56-10TX in an existing design?

Yes, BCP56-16TX is pin-compatible and electrically substitutable for BCP56-10TX, but its higher h_FE range (100–250 vs. 63–160) may increase base current demand in saturated switching or alter loop gain in linear regulator feedback paths. Verify base resistor values and stability margins; no PCB layout change is required due to identical SOT223 footprint and pinout.

What is the recommended PCB layout for optimal thermal performance?

For rated 1.8 W dissipation, use a 4-layer FR4 board with ≥1 cm² copper pour connected to pin 4 (collector/heatsink tab) on the inner layers. Include ≥4 thermal vias (0.3 mm diameter, spaced ≤1 mm apart) under the tab to connect to internal ground/power planes. Avoid narrow traces on collector paths; keep emitter and base traces short and direct to minimize parasitic inductance in switching applications.

Does BCP56-16TX have automotive qualification?

No, BCP56-16TX is not automotive-qualified. The datasheet revision history explicitly states that the BCP56T series was changed to non-automotive qualification in Rev. 3 (2022). For automotive applications, Nexperia offers the -Q qualified variants (e.g., BCP56-16Q), which undergo AEC-Q101 stress testing and include extended temperature screening and failure analysis reporting.

BCP56-16TX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: BCP56T

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:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

BCP56-16TX FAQ

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

Please submit a Request for Quotation (RFQ) for BCP56-16TX 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 BCP56-16TX reliable?

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

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

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

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCP56-16TX?

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

Once your BCP56-16TX 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 BCP56-16TX?

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

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

All BCP56-16TX 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 BCP56-16TX meets industry standards.

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

All BCP56-16TX units undergo pre-shipment inspection (PSI). If there is an issue with BCP56-16TX, 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 BCP56-16TX part is unused and in its original packaging.

Return procedure for BCP56-16TX:

1.Submit a request within 90 days.

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

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