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

Nexperia USA Inc. BCP56F

Name: BCP56F
Brand: Nexperia USA Inc.
SKU: BCP56F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCP56F

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: BCP56F.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BCP56 from Nexperia is an NPN medium power transistor in SOT223 (SC-73) package, rated for 80 V V_CEO, 1 A continuous collector current, and 1.35 W power dissipation with 6 cm² copper pad. It delivers h_FE = 63–250 at I_C = 150 mA and supports linear voltage regulators and MOSFET drivers requiring stable gain and thermal performance.

For engineers reviewing the BCP56 datasheet, BCP56 pinout, BCP56 application, or BCP56 equivalent, this page provides verified pin functions, thermal derating curves, h_FE binning details (BCP56/BCP56-10/BCP56-16), saturation voltage under 500 mA drive, and validated alternatives for low-side switching and amplifier stages.

Technical Context

The BCP56 operates as a silicon NPN bipolar junction transistor optimized for medium-power linear and switching applications. Its structure supports V_CEO = 80 V and V_CBO = 100 V, enabling use in 24 V and 48 V industrial power rails. The device exhibits f_T = 100–180 MHz and C_c = 6 pF, confirming suitability for audio-frequency amplification and fast-switching driver stages.

Thermal design relies on its SOT223 package's dual-collector configuration: pins 2 and 4 are internally connected to the collector and serve as thermal conduction paths. R_th(j-a) drops from 192 K/W (standard footprint) to 93 K/W (6 cm² pad), directly linking PCB layout to safe operating area (SOA) compliance.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	80 V - Maximum collector-emitter voltage before breakdown; defines safe operation in 48 V systems with margin.
I_C (continuous)	1 A - Continuous DC collector current rating; sets maximum load-handling capability in linear regulators.
h_FE range	63–250 - Gain spread across BCP56 variants; enables precise biasing in amplifier feedback networks.
V_CE(sat)	≤500 mV @ I_C = 500 mA, I_B = 50 mA - Low saturation voltage minimizes conduction loss in low-side switch configurations.
P_tot	1.35 W @ T_amb ≤ 25 °C with 6 cm² copper pad - Defines thermal limit for sustained power delivery without forced cooling.
f_T	100–180 MHz - Transition frequency confirms usable bandwidth up to ~10 MHz for small-signal amplification.
R_th(j-a)	93 K/W - Thermal resistance with 6 cm² pad; determines junction temperature rise under 1 W dissipation (ΔT ≈ 93 °C).

Pinout & Package

SOT223 (SC-73) surface-mount plastic package with four leads: two collector terminals (pins 2 and 4) provide enhanced thermal conduction and current handling; base (pin 1) and emitter (pin 3) complete the NPN topology. The exposed collector tab is electrically and thermally tied to pins 2 and 4.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control terminal for forward-biased junction; requires ≥0.7 V V_BE to initiate conduction.
2	Collector	Main high-current output terminal; internally connected to pin 4 for parallel current path and heat spreading.
3	Emitter	Reference terminal for current return; grounded in low-side switch configurations.
4	Collector	Second collector terminal; shares internal connection with pin 2 to double thermal interface area and reduce R_th.

Key Features

Feature	Design Value
High I_C/I_CM capability	1 A continuous / 2 A pulsed - Supports surge-tolerant power management in battery-driven devices.
Three h_FE bins	BCP56 (63–250), BCP56-10 (63–160), BCP56-16 (100–250) - Enables precision gain matching in production amplifier designs.
Dual-collector thermal design	Pins 2 + 4 share collector node - Reduces thermal resistance by up to 52% vs. single-collector SOT223 variants.
Low V_CE(sat)	≤500 mV @ 500 mA - Limits power loss to ≤250 mW in saturated switching, improving efficiency in MOSFET gate drivers.
Robust SOA	Rated for 80 V × 1 A DC operation - Validates use in linear regulator pass elements without secondary breakdown concerns.

Applications

Linear Voltage Regulators

MOSFET Drivers

Use Scenario: Pass transistor in adjustable 3-terminal linear regulators delivering up to 1 A at 5–24 V output.

IC Role / Device Role / Timing Role: NPN series pass element controlling output voltage via base bias network.

Use Value: V_CEO = 80 V and P_tot = 1.35 W enable dropout operation with 40 V input transients while maintaining thermal stability.

Use Scenario: Gate driver stage for N-channel power MOSFETs in DC-DC converters and motor controllers.

IC Role / Device Role / Timing Role: Medium-current NPN switch sourcing gate charge during turn-on transitions.

Use Value: I_CM = 2 A peak and V_CE(sat) ≤ 500 mV ensure sub-100 ns rise times for 1 nF gate loads without excessive heating.

Low-Side Switches

Battery-Driven Devices

Use Scenario: Load switch for 12 V automotive accessories or industrial solenoids drawing ≤1 A steady-state current.

IC Role / Device Role / Timing Role: Ground-referenced NPN switch controlled by microcontroller GPIO or logic-level signal.

Use Value: Dual-collector construction sustains 1 A continuously with <93 °C junction rise on standard FR4, eliminating need for heatsinks.

Use Scenario: Power path control and battery protection circuitry in portable medical monitors and handheld test equipment.

IC Role / Device Role / Timing Role: Discrete transistor managing battery-to-load connection and reverse-polarity protection.

Use Value: V_EBO = 5 V and I_EBO ≤ 100 nA prevent leakage-induced drain in sleep modes, extending shelf life beyond 6 months.

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
BCP56-10	h_FE = 63–160 (narrower gain band); identical V_CEO, I_C, package, and pinout	Preferred where tighter gain tolerance reduces calibration overhead in production amplifiers	Select when consistent DC bias point across batches is prioritized over maximum small-signal gain.
ZTX653	V_CEO = 60 V, I_C = 1 A, SOT89 package, single-collector, R_th(j-a) = 125 K/W	Limited to ≤36 V systems; less suitable for high-thermal-load linear regulation	Choose only if board space constraints prohibit SOT223 and 60 V rating suffices for target rail voltage.

Compared with BCP56-10, the base part offers wider h_FE flexibility but requires additional gain binning in production; versus ZTX653, BCP56 delivers 33% higher voltage rating and 30% lower thermal resistance-critical for 48 V industrial power stages.

Availability

BCP56 is available at Aetrix Electronics and suitable for linear voltage regulators, MOSFET drivers, and low-side switches requiring stable component supply, long-term manufacturability, and traceable sourcing for industrial control and embedded power systems.

Supply support for BCP56 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 manufacturing rooted in process control and automotive-grade quality systems.

The BCP56 series belongs to Nexperia's medium-power bipolar transistor product line, engineered specifically for industrial power management, analog signal conditioning, and robust switching in non-automotive embedded systems.

FAQ

What is the maximum allowable junction temperature for BCP56?

The absolute maximum junction temperature (T_j) is 150 °C per IEC 60134 limiting values. Operation above this threshold risks permanent parametric shift or metallization failure. Derating is required above 25 °C ambient: for example, at 75 °C ambient, maximum allowable P_tot drops to ~0.75 W with a 6 cm² pad (using R_th(j-a) = 93 K/W).

Can BCP56 replace BC337 in existing designs?

No-BC337 is a TO-92 device rated for 45 V V_CEO and 0.5 A I_C, while BCP56 handles 80 V and 1 A in SOT223. Pinout differs (BC337: E-B-C; BCP56: B-E-C-C), and thermal behavior is not interchangeable. Direct replacement requires PCB redesign and SOA revalidation.

Is BCP56 suitable for automotive applications?

No-per Nexperia's revision history (v.11, July 2022), BCP56_SER is explicitly marked "non-automotive qualified." It lacks AEC-Q101 stress testing, extended temperature validation, and zero-defect screening. Automotive designs must use Nexperia's -Q qualified equivalents (e.g., BCP56-16Q).

How does the dual-collector configuration affect PCB layout?

Pins 2 and 4 must be routed to the same net-typically a large copper pour-to exploit the thermal benefit. The footprint in Figure 10 specifies separate solder lands for both collectors; connecting them electrically and thermally to ≥6 cm² of 1 oz copper reduces R_th(j-a) from 192 to 93 K/W, directly improving power handling by >40%.

BCP56F Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

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:: 63 @ 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

BCP56F FAQ

1.How can I place an order for BCP56F through Aetrix?

Please submit a Request for Quotation (RFQ) for BCP56F 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 BCP56F reliable?

The price and inventory of BCP56F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP56F is usually 5 days.

3.What payment methods are accepted for BCP56F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP56F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCP56F?

BCP56F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCP56F 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 BCP56F?

For technical support, including BCP56F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP56F requirements.

6.How does Aetrix verify that BCP56F is sourced from the original manufacturer or authorized distributors?

All BCP56F 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 BCP56F meets industry standards.

7.What is the process for return or replacement of BCP56F?

All BCP56F units undergo pre-shipment inspection (PSI). If there is an issue with BCP56F, 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 BCP56F part is unused and in its original packaging.

Return procedure for BCP56F:

1.Submit a request within 90 days.

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

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