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

Nexperia USA Inc. BCP53-QF

Name: BCP53-QF
Brand: Nexperia USA Inc.
SKU: BCP53-QF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCP53-QF

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: BCP53-QF.pdf

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

Quantity:: RFQ Add To RFQ list

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Inventory:4,000

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Product details

Overview

BCP53-Q from Nexperia is a PNP medium-power bipolar junction 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 is AEC-Q101 qualified for automotive linear voltage regulators and high-side switches.

For engineers reviewing the BCP53-Q datasheet, BCP53-Q pinout, BCP53-Q application, or BCP53-Q equivalent, this page provides verified electrical parameters, thermal derating curves, SOT223 pin mapping, automotive qualification status, and direct alternatives for high-side switching and MOSFET driver designs.

Technical Context

This PNP transistor operates in linear and saturation regions with V_CE(sat) ≤ −0.5 V at I_C = −500 mA / I_B = −50 mA and f_T = 145 MHz at V_CE = −5 V / I_C = −50 mA. Its dual-collector configuration (pins 2 and 4) enables enhanced thermal conduction via PCB copper area.

Thermal resistance R_th(j-a) ranges from 93 K/W (6 cm² pad) to 192 K/W (standard footprint), and transient thermal impedance data supports pulse-width design for battery-driven load control. Junction temperature is rated to 150 °C with storage down to −65 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−80 V: Maximum safe collector-emitter voltage with open base; defines high-side switch blocking capability.
I_C	−1 A continuous: Sustained DC current handling for power management stages without forced cooling.
P_tot	1.35 W with 6 cm² copper pad: Enables compact thermal design in space-constrained automotive modules.
h_FE	63–250 at I_C = −150 mA: Supports stable current gain across production lots for precision biasing.
f_T	145 MHz: Allows use in low-noise pre-amplifier stages and fast-switching driver interfaces.
V_CE(sat)	≤ −0.5 V at I_C/I_B = 10: Minimizes conduction loss in saturated high-side switch operation.
R_th(j-a)	93 K/W with 6 cm² pad: Directly determines junction-to-ambient temperature rise under steady-state load.

Pinout & Package

SOT223 (SC-73) surface-mount plastic package with 4 leads, 2.3 mm pitch, and 6.5 mm × 3.5 mm × 1.65 mm body dimensions. Collector terminals are internally connected to the large exposed tab (pin 2 and pin 4) for optimized thermal transfer to PCB copper.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Current-controlled input node; requires series resistor to limit I_B ≤ −0.3 A peak.
2	Collector	Main high-current output terminal; electrically tied to pin 4 and thermal pad for heatsinking.
3	Emiter	Reference node for PNP operation; connects to higher potential rail in high-side configurations.
4	Collector	Second collector lead providing redundant connection to thermal pad and improved solder joint reliability.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive underhood applications including temperature cycling, humidity, and mechanical shock.
Dual-collector SOT223 layout	Enables 1.35 W power dissipation on standard FR4 PCBs using only 6 cm² copper area.
Three h_FE bins (Q/10-Q/16-Q)	Allows precise gain matching in production batches for consistent amplifier or regulator loop behavior.
V_CB = −100 V rating	Provides 20 V margin above V_CEO, improving robustness against inductive kickback in relay drivers.

Applications

Linear Voltage Regulators

High-Side Switches

Use Scenario: Adjustable LDO pass element in automotive body control modules requiring <100 mV dropout at 800 mA.

IC Role / Device Role / Timing Role: PNP pass transistor regulating output by modulating emitter-base voltage under feedback control.

Use Value: −80 V V_CEO and 1.35 W dissipation support 12 V/24 V systems with transient overvoltage tolerance and thermal headroom.

Use Scenario: Load switch controlling power to infotainment subsystems during ignition-off sleep mode.

IC Role / Device Role / Timing Role: High-side discrete switch enabling controlled ramp-up/ramp-down of supply rails.

Use Value: Dual-collector SOT223 structure ensures reliable 1 A switching with <0.5 V saturation drop and minimal PCB thermal stress.

Battery-Driven Devices

MOSFET Drivers

Use Scenario: Reverse-polarity protection and load disconnect in portable diagnostic tools powered by Li-ion packs.

IC Role / Device Role / Timing Role: PNP-based ideal diode or hot-swap controller managing inrush and fault isolation.

Use Value: −5 V V_EBO and −100 nA I_EBO ensure low leakage during battery standby, extending shelf life.

Use Scenario: Level-shifting gate driver stage for N-channel high-side MOSFETs in BLDC motor controllers.

IC Role / Device Role / Timing Role: Fast-turnoff PNP pull-down device complementing NPN pull-up in totem-pole output stage.

Use Value: 145 MHz f_T and 100 ns typical switching time enable clean 20 kHz PWM edge control without shoot-through risk.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BCP53-16-Q	Higher h_FE bin (100–250 vs. 63–250); identical V_CEO, I_C, package, and AEC-Q101 status.	Better suited for low-base-drive applications like low-power amplifiers where gain consistency at light loads matters.	Select when circuit requires guaranteed minimum h_FE ≥ 100 at I_C = −150 mA without external gain compensation.
ZTX951	TO-92 package, lower P_tot (0.8 W), no AEC-Q101 qualification, V_CEO = −60 V, h_FE = 100–300.	Limited to non-automotive consumer or industrial prototypes where thermal performance and qualification are secondary.	Choose only for cost-sensitive, low-volume, non-automotive designs where SOT223 mounting and automotive compliance are not required.

Compared with BCP53-16-Q, the BCP53-Q offers broader h_FE tolerance for flexible bias design, while ZTX951 trades automotive reliability and thermal capability for legacy through-hole compatibility and higher nominal gain - making BCP53-Q optimal for production-grade automotive power stages.

Availability

BCP53-Q is available at Aetrix Electronics and suitable for automotive body electronics, industrial power management, and battery-powered test equipment requiring stable component supply, AEC-Q101 traceability, and SOT223 thermal performance.

Supply support for BCP53-Q 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, with leadership in logic, discrete, and MOSFET technologies for automotive, industrial, and mobile markets.

The BCP53-Q belongs to Nexperia's AEC-Q101-qualified medium-power bipolar transistor family, engineered specifically for high-reliability linear regulation, high-side switching, and MOSFET gate driving in harsh-environment automotive applications.

FAQ

What is the maximum allowable base current for continuous operation?

The absolute maximum DC base current is −0.3 A, but for reliable long-term operation, Nexperia recommends limiting I_B to ≤ −50 mA under continuous conditions. This ensures V_CE(sat) remains ≤ −0.5 V at I_C = −500 mA while avoiding thermal runaway or bond-wire degradation in the SOT223 package.

Can BCP53-Q replace BCP53 in existing designs?

Yes - BCP53-Q is a direct replacement for legacy BCP53 with identical pinout, electrical ratings, and package. The "-Q" suffix denotes AEC-Q101 qualification and tighter process controls, making it suitable for new automotive designs without layout or schematic changes.

How does thermal performance change with different PCB copper areas?

R_th(j-a) improves from 192 K/W (standard footprint) to 93 K/W with a 6 cm² collector pad, reducing ΔT_j-a by >50 % at 1 W dissipation. This directly extends safe operating area in high-temperature environments such as engine compartments.

Is the emitter-base breakdown voltage sufficient for reverse-battery protection?

With V_EBO = −5 V, BCP53-Q is not rated for standalone reverse-polarity protection in 12 V or 24 V systems. It must be used with external clamping (e.g., Zener or TVS) or in conjunction with dedicated protection ICs to avoid emitter-base junction avalanche.

BCP53-QF Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: BCP53-Q

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

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:: 650 mW

Frequency - Transition:: 145MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

BCP53-QF FAQ

1.How can I place an order for BCP53-QF through Aetrix?

Please submit a Request for Quotation (RFQ) for BCP53-QF 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 BCP53-QF reliable?

The price and inventory of BCP53-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP53-QF is usually 5 days.

3.What payment methods are accepted for BCP53-QF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP53-QF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCP53-QF?

BCP53-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCP53-QF 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 BCP53-QF?

For technical support, including BCP53-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP53-QF requirements.

6.How does Aetrix verify that BCP53-QF is sourced from the original manufacturer or authorized distributors?

All BCP53-QF 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 BCP53-QF meets industry standards.

7.What is the process for return or replacement of BCP53-QF?

All BCP53-QF units undergo pre-shipment inspection (PSI). If there is an issue with BCP53-QF, 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 BCP53-QF part is unused and in its original packaging.

Return procedure for BCP53-QF:

1.Submit a request within 90 days.

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

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