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

Diodes Incorporated BCP6825TC

Name: BCP6825TC
Brand: Diodes Incorporated
SKU: BCP6825TC
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCP6825TC

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

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

Datasheet:: BCP6825TC.pdf

Description:: TRANS NPN 20V 1A SOT-223-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BCP6825TC from NXP Semiconductors is an NPN silicon planar medium-power transistor designed for audio frequency driver and output stage applications, with V_CEO = 20 V, I_C = 1 A continuous, P_tot = 2 W at T_amb = 25°C, and V_CE(sat) = 0.5 V at I_C = 1 A / I_B = 100 mA. It operates across −55°C to +150°C and serves in low-voltage amplifier stages requiring stable gain and low saturation loss.

For engineers reviewing the BCP6825TC datasheet, BCP6825TC pinout, BCP6825TC application, or BCP6825TC equivalent, key selection factors include its verified h_FE range (63–400 at I_C = 500 mA), f_T = 100 MHz at I_C = 100 mA, V_(BR)CBO = 25 V, and SOT223 package thermal performance for medium-power linear operation.

Technical Context

This transistor employs a planar epitaxial base structure optimized for medium-power AF amplification and switching, supporting DC and pulsed operation up to 2 A peak. Its h_FE is specified across three test conditions-5 mA/10 V, 500 mA/1 V, and 500 mA/1 V-enabling predictable gain behavior in both small-signal pre-driver and higher-current output configurations.

The device features low V_CE(sat) (0.5 V) under high drive (I_B = 100 mA), enabling efficient Class AB output stages. Thermal design leverages the SOT223 package's exposed emitter pad for direct PCB copper thermal coupling, with rated P_tot de-rated above 25°C ambient per standard derating curve.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	20 V - Maximum safe collector-emitter voltage before breakdown in common-emitter configuration.
I_C (cont.)	1 A - Continuous collector current rating defining usable linear/saturation region for sustained output drive.
V_CE(sat)	0.5 V @ I_C=1 A, I_B=100 mA - Low saturation voltage enables <0.5 W conduction loss in switching applications.
h_FE	63–400 - DC current gain range across operating points, supporting stable biasing in fixed-gain amplifier designs.
f_T	100 MHz @ I_C=100 mA, V_CE=5 V - Transition frequency confirms suitability for wideband AF and low-MHz signal amplification.
P_tot	2 W @ T_amb=25°C - Total power dissipation limit; requires thermal management above ambient for full-load operation.

Pinout & Package

SOT223 package with molded plastic body, exposed emitter pad for thermal conduction, and 4-terminal configuration (3 active + 1 thermal tab). Pin 1 = Base, Pin 2 = Collector, Pin 3 = Emitter, Pin 4 = Emitter (thermal tab).

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Base	Control terminal for forward-biased junction; accepts ~100 mA drive for full saturation at 1 A collector load.
Pin 2	Collector	Main current output node; rated for 20 V max V_CEO and 2 A pulsed current handling.
Pin 3 & Pin 4	Emitter (dual connection)	Common return path with low-inductance dual bond; Pin 3 = signal emitter, Pin 4 = thermal tab tied to PCB copper pour.

Key Features

Feature	Design Value
Low V_CE(sat)	0.5 V ensures <0.5 W conduction loss at 1 A, reducing heat generation in Class AB output stages.
High h_FE consistency	Min 63 at I_C=500 mA enables stable DC bias without excessive base drive circuitry.
Wide temperature range	−55°C to +150°C operation supports automotive under-hood and industrial control environments.
Complementary pairing	Matched with BCP69 (PNP) for push-pull amplifier topologies requiring symmetrical gain and saturation behavior.

Applications

Audio Power Amplifier Output Stage

DC Motor Driver Half-Bridge

Use Scenario: Final output stage in 5–12 V single-supply audio amplifiers delivering up to 1 W into 8 Ω loads.

IC Role / Device Role / Timing Role: NPN switch/amplifier providing current gain and low-loss conduction in emitter-follower or common-emitter topology.

Use Value: V_CE(sat) ≤ 0.5 V minimizes idle dissipation; h_FE ≥ 63 ensures reliable turn-on with microcontroller GPIO-level base drive.

Use Scenario: High-side switch in 24 V brushed DC motor control circuits with PWM frequencies up to 20 kHz.

IC Role / Device Role / Timing Role: Medium-power NPN transistor used as active pull-up in half-bridge output stage with external flyback diode.

Use Value: 20 V V_CEO margin accommodates inductive kickback; 2 W P_tot supports 50% duty-cycle 1 A average current operation.

LED Constant-Current Driver

Industrial Sensor Signal Conditioning

Use Scenario: Linear constant-current sink for high-brightness LED strings in signage and indicator panels (12–24 V supply).

IC Role / Device Role / Timing Role: Current-regulating pass transistor controlled by op-amp feedback loop.

Use Value: Tight V_BE(on) tolerance (0.6–1.0 V) enables accurate current setpoint; 150°C max T_j allows sealed enclosure operation.

Use Scenario: Transimpedance amplifier stage converting photodiode current to voltage in factory-floor optical sensors.

IC Role / Device Role / Timing Role: Low-noise, medium-gain NPN transistor in discrete transimpedance front-end with 10 kΩ feedback resistor.

Use Value: f_T = 100 MHz supports >1 MHz signal bandwidth; low ICBO (<100 nA) preserves accuracy in pA-level input current measurement.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ZTX653	V_CEO = 60 V, I_C = 1 A, h_FE = 100–400, SOT89 package	Higher voltage rating but larger footprint and lower thermal conductivity than SOT223	Preferred where >20 V supply rails or higher V_CEO margin is required; less optimal for space-constrained AF output stages
MJD112	V_CEO = 100 V, I_C = 2 A, P_tot = 3 W, TO-220 package	Higher power and voltage capability, but requires heatsink and occupies 3× board area of SOT223	Selected when >1 A continuous current or >25°C ambient operation demands forced cooling and mechanical robustness

Compared with ZTX653 and MJD112, BCP6825TC offers optimal balance of thermal efficiency (SOT223), low V_CE(sat), and compact size for 12–24 V AF and motor drive applications where board space and self-heating are critical constraints.

Availability

BCP6825TC is available at Aetrix Electronics and suitable for audio amplifier output stages, DC motor drivers, LED constant-current regulators, and industrial sensor signal conditioning requiring stable component supply and consistent parametric performance across production batches.

Supply support for BCP6825TC 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

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep heritage in analog and power discrete technologies.

The BCP6825TC belongs to NXP's legacy medium-power bipolar transistor family, engineered specifically for cost-sensitive, thermally constrained audio and control applications demanding reliability over extended temperature ranges.

FAQ

What is the maximum safe operating junction temperature for BCP6825TC?

The absolute maximum junction temperature is +150°C, aligned with its rated storage temperature range. Derating begins at T_amb > 25°C per the published thermal resistance curve (R_thJA ≈ 62.5 K/W), requiring PCB copper area or airflow to maintain T_j ≤ 150°C at full 1 A load.

Can BCP6825TC be used in switching applications above 100 kHz?

Yes - its f_T = 100 MHz supports switching up to ~10 MHz small-signal operation, but practical hard-switching above 100 kHz is limited by stored charge (t_on/t_off) and V_CE(sat) recovery. For >200 kHz PWM, MOSFETs are preferred; BCP6825TC remains effective for ≤50 kHz motor/LED control.

Is the SOT223 pinout of BCP6825TC compatible with BCP69?

No - BCP6825TC (NPN) and BCP69 (PNP) share identical SOT223 mechanical footprint and pin assignment (Pin 1 = Base, Pin 2 = Collector, Pin 3/4 = Emitter), but polarity reversal means complementary use requires mirrored PCB layout for push-pull pairs; they are not drop-in replacements.

Does BCP6825TC require a base resistor when driven by a 3.3 V microcontroller GPIO?

Yes - with V_BE(on) = 0.6–1.0 V and required I_B ≈ 100 mA for full saturation at I_C = 1 A, a 3.3 V GPIO cannot source sufficient current directly. A 22 Ω series base resistor (or Darlington driver) is necessary to limit base current while ensuring reliable turn-on.

BCP6825TC Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: NPN

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

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

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 100mA, 1A

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

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

Power - Max:: 2 W

Frequency - Transition:: 100MHz

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223-3

BCP6825TC FAQ

1.How can I place an order for BCP6825TC through Aetrix?

Please submit a Request for Quotation (RFQ) for BCP6825TC 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 BCP6825TC reliable?

The price and inventory of BCP6825TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP6825TC is usually 5 days.

3.What payment methods are accepted for BCP6825TC?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP6825TC transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCP6825TC?

BCP6825TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCP6825TC 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 BCP6825TC?

For technical support, including BCP6825TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP6825TC requirements.

6.How does Aetrix verify that BCP6825TC is sourced from the original manufacturer or authorized distributors?

All BCP6825TC 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 BCP6825TC meets industry standards.

7.What is the process for return or replacement of BCP6825TC?

All BCP6825TC units undergo pre-shipment inspection (PSI). If there is an issue with BCP6825TC, 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 BCP6825TC part is unused and in its original packaging.

Return procedure for BCP6825TC:

1.Submit a request within 90 days.

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

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