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

Nexperia USA Inc. BCP68-25-QX

Name: BCP68-25-QX
Brand: Nexperia USA Inc.
SKU: BCP68-25-QX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCP68-25-QX

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: BCP68-25-QX.pdf

Description:: TRANS NPN 20V 2A SOT-223

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BCP68-25-QX from Nexperia is an AEC-Q101-qualified NPN medium power transistor in SOT223 (SC-73) package, rated for 20 V V_CEO, 2 A continuous collector current, and 160–375 h_FE at V_CE = 1 V / I_C = 500 mA. It serves as a low-side switch or MOSFET driver in automotive power management circuits requiring robust thermal performance on FR4 PCBs with extended heatsink pads.

For engineers reviewing the BCP68-25-QX datasheet, BCP68-25-QX pinout, BCP68-25-QX application, or BCP68-25-QX equivalent, this device is selected for linear voltage regulators, battery-driven load switching, and automotive-grade amplifier stages where DC current gain stability across −55 °C to 150 °C and controlled V_CE(sat) ≤ 0.6 V at 2 A/200 mA drive are critical.

Technical Context

This transistor operates as a single NPN silicon bipolar junction device optimized for medium-power switching and amplification. Its dual-collector pin configuration (Pins 2 and 4) enables enhanced thermal conduction via dedicated heatsink pad routing on PCBs, supporting up to 1.35 W total power dissipation when mounted on 6 cm² copper area.

The BCP68-25-QX variant specifies minimum h_FE = 160 at V_CE = 1 V and I_C = 500 mA under pulsed conditions (t_p ≤ 300 μs, duty ≤ 0.02), distinguishing it from the broader BCP68-Q series by tighter DC current gain binning for predictable base drive requirements in safety-critical automotive subsystems.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	20 V - Maximum safe collector-emitter voltage with open base; defines upper rail limit in low-side switch designs.
I_C	2 A - Continuous DC collector current rating; supports sustained 2 A load switching without derating at T_amb ≤ 25 °C.
h_FE	160–375 - DC current gain range at V_CE = 1 V, I_C = 500 mA; enables precise base resistor selection for 5–10 mA drive in 2 A switching applications.
V_CE(sat)	≤ 0.6 V at I_C = 2 A, I_B = 200 mA - Low saturation voltage minimizes conduction loss and self-heating during active switching.
P_tot	1.35 W - Max power dissipation with 6 cm² collector copper pad; sets thermal design boundary for PCB layout and heatsinking.
f_T	40–170 MHz - Transition frequency at V_CE = 5 V, I_C = 50 mA; supports high-speed switching up to ~10 MHz with adequate gain margin.
R_th(j-a)	93 K/W - Junction-to-ambient thermal resistance with 6 cm² copper pad; determines temperature rise ΔT = P × R_th under steady-state operation.

Pinout & Package

SOT223 (SC-73) surface-mount plastic package with 4 leads and integrated heatsink pad (Pin 2 and Pin 4 both connected to collector). The package measures 6.7 mm × 3.7 mm × 1.8 mm and requires reflow footprint per Figure 10 (7.65 mm × 3.9 mm solder land).

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control input node; accepts 5–10 mA typical base current to saturate 2 A collector current.
2	Collector (C)	Main high-current output terminal; electrically tied to Pin 4 and internal heatsink tab for thermal conduction.
3	Emiter (E)	Reference/return path for collector current; connects to system ground or low-side return rail.
4	Collector (C)	Duplicate collector terminal; used for mechanical anchoring and thermal enhancement via PCB copper pour.

Key Features

Feature	Design Value
AEC-Q101 qualification	Qualified for automotive applications including engine control modules and body electronics per stress test standard.
High h_FE bin (25-Q)	Guaranteed minimum h_FE = 160 ensures consistent base drive requirements across production lots.
Dual-collector thermal design	Pins 2 and 4 both connect to collector and heatsink tab, enabling 1.35 W dissipation with 6 cm² PCB copper area.
Low V_CE(sat)	≤ 0.6 V at full 2 A load reduces power loss to ≤ 1.2 W, easing thermal management in compact layouts.
Wide operating temperature	Rated from −55 °C to +150 °C junction temperature, supporting under-hood and battery-pack environments.

Applications

Linear Voltage Regulators

MOSFET Drivers

Use Scenario: Pass transistor in adjustable 3-terminal linear regulator supplying 1.2–12 V at up to 2 A to infotainment or ADAS sensors.

IC Role / Device Role / Timing Role: NPN pass element controlling output voltage via base bias; operates in linear region with continuous conduction.

Use Value: Stable regulation with <10 mV load regulation error due to tight h_FE bin and low V_CE(sat) drift over temperature.

Use Scenario: Gate driver stage for N-channel power MOSFETs in 12 V automotive motor control H-bridges.

IC Role / Device Role / Timing Role: Medium-current switch sourcing 200 mA peak base/gate current to rapidly charge/discharge MOSFET gate capacitance.

Use Value: Enables <100 ns turn-on delay and <50 ns turn-off delay with minimal Miller effect due to f_T ≥ 40 MHz.

Low-Side Switches

Battery-Driven Devices

Use Scenario: Load switch for 12 V/2 A solenoid, fan, or lighting module in vehicle chassis systems.

IC Role / Device Role / Timing Role: Saturated NPN switch placed between load and ground; driven by microcontroller GPIO or logic buffer.

Use Value: Delivers reliable 2 A switching with <0.6 V dropout and <10 μs transition time, reducing system-level power loss by >15% vs. generic transistors.

Use Scenario: Power path controller in portable diagnostic tools or telematics units powered by 12 V lead-acid or LiFePO₄ batteries.

IC Role / Device Role / Timing Role: Reverse-polarity protection and load enable switch; handles cold-crank (−40 °C) and load-dump (32 V transient) conditions.

Use Value: Survives 32 V V_CBO and −55 °C to +150 °C operation while maintaining <100 nA leakage at V_EB = 5 V for battery longevity.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BCP56-10-Q	Lower V_CEO = 80 V, lower h_FE = 63–160, same SOT223 package	Higher voltage headroom but reduced current gain consistency at 500 mA	Select when >20 V supply rails exist and gain tolerance >100 is acceptable
ZTX653	Higher V_CEO = 60 V, higher P_tot = 1.5 W, TO-92 package	Through-hole mounting only; no dual-collector thermal advantage	Select for legacy through-hole designs requiring >20 V rating and manual assembly

Compared with BCP56-10-Q and ZTX653, the BCP68-25-QX offers superior h_FE consistency at 500 mA, dual-collector thermal routing for SMT reliability, and AEC-Q101 validation-making it optimal for new automotive SMT power stage designs demanding repeatable 2 A switching.

Availability

BCP68-25-QX is available at Aetrix Electronics and suitable for automotive power management, battery-powered industrial tools, and embedded linear regulator designs requiring stable component supply with AEC-Q101 compliance and SOT223 thermal performance.

Supply support for BCP68-25-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-enhancing components, delivering high-performance, reliable, and scalable solutions for automotive, industrial, and consumer markets.

The BCP68-Q series belongs to Nexperia's AEC-Q101-qualified bipolar transistor portfolio, engineered specifically for robust medium-power switching in automotive body electronics, power supplies, and motor control systems.

FAQ

What is the maximum allowable base current for continuous operation?

The absolute maximum DC base current is 0.4 A per limiting values table. However, for reliable 2 A collector switching with V_CE(sat) ≤ 0.6 V, the recommended continuous base current is 200 mA - matching the test condition in the datasheet and ensuring sufficient overdrive without thermal overstress at T_j ≤ 150 °C.

Can BCP68-25-QX replace BCP68-16-Q in existing designs?

Yes, with verification of gain-dependent circuit margins. The BCP68-25-QX has minimum h_FE = 160 versus 85 for BCP68-16-Q at identical test conditions. This higher gain reduces required base drive current by ~45%, potentially lowering base resistor power dissipation and improving switching speed - but may necessitate recalculating base bias networks in precision linear applications.

How does the dual-collector pin configuration affect PCB layout?

Pins 2 and 4 are internally shorted to the collector and heatsink tab. Both must be connected to the same large copper pour (≥6 cm²) for rated 1.35 W dissipation. Splitting or isolating either pin degrades thermal performance and risks exceeding R_th(j-a) = 93 K/W, leading to premature thermal shutdown or parametric shift above 125 °C junction temperature.

Is the device suitable for PWM motor control at 20 kHz?

Yes. With f_T ≥ 40 MHz and measured t_f/t_r < 50 ns at I_C = 2 A, the BCP68-25-QX fully supports 20 kHz PWM in low-side motor drive configurations. Its low C_c = 22 pF and fast V_BE response ensure minimal switching losses and EMI generation when paired with appropriate gate/base drive impedance.

BCP68-25-QX 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):: 2 A

Voltage - Collector Emitter Breakdown (Max):: 20 V

Vce Saturation (Max) @ Ib, Ic:: 600mV @ 200mA, 2A

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 160 @ 500mA, 1V

Power - Max:: 650 mW

Frequency - Transition:: 170MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

BCP68-25-QX FAQ

1.How can I place an order for BCP68-25-QX through Aetrix?

Please submit a Request for Quotation (RFQ) for BCP68-25-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 BCP68-25-QX reliable?

The price and inventory of BCP68-25-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP68-25-QX is usually 5 days.

3.What payment methods are accepted for BCP68-25-QX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP68-25-QX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCP68-25-QX?

BCP68-25-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCP68-25-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 BCP68-25-QX?

For technical support, including BCP68-25-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP68-25-QX requirements.

6.How does Aetrix verify that BCP68-25-QX is sourced from the original manufacturer or authorized distributors?

All BCP68-25-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 BCP68-25-QX meets industry standards.

7.What is the process for return or replacement of BCP68-25-QX?

All BCP68-25-QX units undergo pre-shipment inspection (PSI). If there is an issue with BCP68-25-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 BCP68-25-QX part is unused and in its original packaging.

Return procedure for BCP68-25-QX:

1.Submit a request within 90 days.

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

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