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

Nexperia USA Inc. BCX56-10TF

Name: BCX56-10TF
Brand: Nexperia USA Inc.
SKU: BCX56-10TF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCX56-10TF

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-243AA

Datasheet:: BCX56-10TF.pdf

Description:: TRANS NPN 80V 1A SOT-89

Quantity:: RFQ Add To RFQ list

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Inventory:8,916

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Product details

Overview

BCX56-10TF from Nexperia is an AEC-Q101 qualified NPN power bipolar transistor in SOT89 (SC-62) 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 is optimized for low-side switching and MOSFET gate driving in automotive and industrial power management circuits.

For engineers reviewing the BCX56-10TF datasheet, BCX56-10TF pinout, BCX56-10TF application, or BCX56-10TF equivalent, this device is selected for linear voltage regulation, high-current switching with thermal robustness up to 150 °C junction temperature, and reliable operation under pulsed load conditions with validated transient thermal impedance profiles.

Technical Context

This NPN transistor operates as a medium-power discrete switch or amplifier with fixed-emitter configuration and base-controlled conduction. Its design supports stable DC biasing across −55 °C to +150 °C ambient, with V_BE ≤ 1 V at I_C = 500 mA and V_CE(sat) ≤ 500 mV at I_C/I_B = 10.

The device features three h_FE bins (BCX56-10T, -16T, standard), enabling precise current gain matching in production designs. Thermal resistance R_th(j-a) ranges from 114 K/W (6 cm² copper pad) to 250 K/W (standard FR4 footprint), directly informing PCB layout decisions for thermal management.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	80 V - Maximum safe collector-emitter voltage with open base; defines upper rail limit in low-side switch applications
I_C (continuous)	1 A - Continuous collector current rating at T_amb ≤ 25 °C; sets baseline load-handling capability
h_FE	63–160 - DC current gain at V_CE = 2 V, I_C = 150 mA; determines required base drive current for saturation
V_CE(sat)	≤ 500 mV - Collector-emitter saturation voltage at I_C = 500 mA, I_B = 50 mA; directly impacts conduction loss and heat generation
P_tot	1100 mW - Total power dissipation with 6 cm² collector copper pad; enables higher sustained output in thermally enhanced layouts
f_T	155 MHz - Transition frequency at V_CE = 5 V, I_C = 50 mA; supports moderate-speed switching up to ~10–20 MHz practical edge rates
AEC-Q101	Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22-A114

Pinout & Package

SOT89 (SC-62) plastic surface-mount package: 4.5 mm × 2.5 mm × 1.5 mm body, 1.5 mm lead pitch, single-sided copper mounting. Collector tab is electrically connected to Pin 2 and serves as primary thermal path.

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter	Current return path; tied to ground or low-side reference in switch configurations; requires low-impedance PCB trace for stability
2	Collector	Main power output node; electrically and thermally connected to exposed metal tab; must be routed to large copper area for thermal relief
3	Base	Control input; driven by MCU GPIO or driver IC; requires series resistor to limit I_B ≤ 200 mA (absolute max)

Key Features

Feature	Design Value
High I_C/I_CM capability	1 A continuous / 2 A pulsed handling enables direct drive of 500 mA–1 A loads without external buffering
Three h_FE bins	BCX56-10T (63–160) allows predictable base current sizing for consistent saturation across production batches
AEC-Q101 qualification	Validated for automotive under-hood environments including 1000-cycle temperature cycling and 1000-hour HTRB
Thermally enhanced SOT89	Exposed collector tab reduces R_th(j-a) to 114 K/W with 6 cm² copper, supporting >800 mW sustained dissipation
Low V_CE(sat)	≤500 mV at I_C/I_B = 10 minimizes conduction loss and self-heating in linear regulator and switch-mode applications

Applications

Linear Voltage Regulators

MOSFET Drivers

Use Scenario: Pass transistor in adjustable 3-terminal linear regulators delivering up to 1 A output current.

IC Role / Device Role / Timing Role: NPN emitter-follower configured as series pass element, controlled by error amplifier feedback loop.

Use Value: Low V_CE(sat) and high h_FE reduce dropout voltage and improve load regulation accuracy over temperature.

Use Scenario: Gate driver stage for N-channel power MOSFETs in motor control or DC-DC converter half-bridges.

IC Role / Device Role / Timing Role: Low-side NPN switch rapidly sinking gate charge during turn-off, paired with pull-up resistor or complementary PNP.

Use Value: 2 A peak current capability ensures sub-100 ns gate discharge time for MOSFETs with Q_g ≤ 20 nC at 12 V supply.

Low-Side Switches

Power Management

Use Scenario: High-current load switch for automotive lighting, solenoids, or fan control in 12 V/24 V systems.

IC Role / Device Role / Timing Role: Saturated NPN switch connecting load between V_CC and GND, controlled via microcontroller GPIO.

Use Value: AEC-Q101 qualification and 150 °C T_j rating ensure reliability in engine bay environments with minimal derating.

Use Scenario: Current-sense amplifier front-end or battery protection circuitry in portable industrial equipment.

IC Role / Device Role / Timing Role: Discrete transistor used in current mirror or shunt-based sensing topology to scale and isolate load current signals.

Use Value: Tight h_FE binning (63–160) and low I_CBO (<10 μA at 150 °C) maintain measurement linearity and offset stability over wide temperature range.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BCX56-16TF	Higher h_FE bin (100–250); identical V_CEO, I_C, package, and thermal specs	Better suited for low-base-drive applications where I_B < 10 mA is required at I_C = 150 mA	Select when minimizing base drive current is critical and tighter h_FE consistency is needed above 100
ZTX653	TO-92 package; 100 V V_CEO; 1.5 A I_C; h_FE 100–300; no AEC-Q101 qualification	Through-hole alternative with higher voltage margin but no automotive qualification or SMT thermal performance	Choose only for non-automotive prototyping or legacy through-hole designs requiring higher V_CEO

Compared with BCX56-10TF, BCX56-16TF offers higher gain for reduced base drive burden while maintaining identical thermal and switching behavior; ZTX653 trades SMT manufacturability and automotive qualification for higher voltage headroom and through-hole assembly compatibility.

Availability

BCX56-10TF is available at Aetrix Electronics and suitable for automotive power management, industrial motor control, and consumer appliance linear regulation requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for BCX56-10TF 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 essential semiconductors for automotive, industrial, and consumer markets.

The BCX56T series belongs to Nexperia's AEC-Q101 qualified discrete power transistor portfolio, engineered specifically for robust low-side switching and linear regulation in harsh-temperature automotive and industrial environments.

FAQ

What is the maximum allowable base current for BCX56-10TF?

The absolute maximum DC base current is 200 mA, and peak base current is 300 mA for pulses ≤1 ms. For reliable saturation at I_C = 1 A, design base current to ≥100 mA using h_FE minimum of 63, ensuring V_BE remains ≤1 V and thermal limits are respected.

Can BCX56-10TF replace BCX56-16TF in existing designs?

Yes, BCX56-10TF can substitute BCX56-16TF where lower h_FE is acceptable, but base drive must increase to maintain saturation-e.g., from 15 mA to ≥25 mA at I_C = 150 mA. Verify V_CE(sat) and thermal rise under worst-case load and ambient conditions.

Is the collector tab electrically isolated in BCX56-10TF?

No-the collector is internally connected to the exposed metal tab (Pin 2). This tab must be electrically tied to the collector net and thermally coupled to a dedicated copper pour; isolation would compromise both electrical function and thermal performance.

What PCB layout practices optimize thermal performance for BCX56-10TF?

Use ≥6 cm² of 1 oz copper connected directly to the collector tab via multiple thermal vias (≥4× 0.3 mm diameter). Keep emitter and base traces short and low-inductance. Avoid routing high dv/dt signals near the base terminal to prevent unintended turn-on.

BCX56-10TF Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-243AA

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:: 63 @ 150mA, 2V

Power - Max:: 500 mW

Frequency - Transition:: 155MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-89

BCX56-10TF FAQ

1.How can I place an order for BCX56-10TF through Aetrix?

Please submit a Request for Quotation (RFQ) for BCX56-10TF 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 BCX56-10TF reliable?

The price and inventory of BCX56-10TF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCX56-10TF is usually 5 days.

3.What payment methods are accepted for BCX56-10TF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCX56-10TF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCX56-10TF?

BCX56-10TF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCX56-10TF 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 BCX56-10TF?

For technical support, including BCX56-10TF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCX56-10TF requirements.

6.How does Aetrix verify that BCX56-10TF is sourced from the original manufacturer or authorized distributors?

All BCX56-10TF 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 BCX56-10TF meets industry standards.

7.What is the process for return or replacement of BCX56-10TF?

All BCX56-10TF units undergo pre-shipment inspection (PSI). If there is an issue with BCX56-10TF, 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 BCX56-10TF part is unused and in its original packaging.

Return procedure for BCX56-10TF:

1.Submit a request within 90 days.

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

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