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

Nexperia USA Inc. BCP53H-QX

Name: BCP53H-QX
Brand: Nexperia USA Inc.
SKU: BCP53H-QX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCP53H-QX

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: BCP53H-QX.pdf

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

Quantity:: RFQ Add To RFQ list

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Inventory:7,655

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Product details

Overview

BCP53H-QX from Nexperia is a PNP medium power transistor in SOT223 (SC-73) package, rated for −80 V V_CEO, −1 A continuous collector current, and 2.2 W total power dissipation on 4-layer FR4 PCB with 1 cm² collector pad; designed for high-side switching and linear voltage regulation in automotive-grade systems.

For engineers reviewing the BCP53H-QX datasheet, BCP53H-QX pinout, BCP53H-QX application, or BCP53H-QX equivalent, this device supports AEC-Q101-compliant high-temperature operation up to 175 °C, offers three h_FE gain variants (63–250), and delivers low V_CEsat of −500 mV at I_C = −500 mA / I_B = −50 mA - critical for efficient power control in space-constrained automotive modules.

Technical Context

This PNP bipolar junction transistor operates with open-base V_CEO = −80 V and V_CBO = −100 V, supporting robust blocking in high-side configurations. Its DC current gain (h_FE) ranges from 63 to 250 at V_CE = −2 V and I_C = −150 mA, with guaranteed minimum h_FE ≥ 63 across all operating conditions.

Thermal performance is defined by R_th(j-a) = 69 K/W (4-layer FR4, 1 cm² collector pad) and T_j max = 175 °C, enabling stable operation in under-hood environments. Safe operating area (SOA) supports single-pulse I_CM = −2 A (t_p ≤ 1 ms) and continuous I_C = −1 A with appropriate PCB thermal design.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−80 V: Maximum safe collector-emitter reverse bias before breakdown in open-base configuration.
I_C	−1 A: Continuous DC collector current rating at T_amb = 25 °C with adequate heatsinking.
h_FE	63–250: DC current gain range at V_CE = −2 V, I_C = −150 mA - enables precise base drive sizing.
V_CEsat	−500 mV: Collector-emitter saturation voltage at I_C = −500 mA / I_B = −50 mA - minimizes conduction loss in switch mode.
P_tot	2.2 W: Total power dissipation limit on 4-layer FR4 PCB with 1 cm² collector mounting pad.
f_T	100–140 MHz: Transition frequency at V_CE = −5 V, I_C = −50 mA, f = 100 MHz - supports moderate-speed switching.
R_th(j-a)	69 K/W: Junction-to-ambient thermal resistance under optimal 4-layer PCB layout - defines temperature rise per watt.

Pinout & Package

SOT223 (SC-73) surface-mount plastic package with 4 leads; thermally enhanced design featuring dual collector terminals (pins 2 and 4) for improved heat transfer and current handling.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control terminal; requires negative bias relative to emitter to turn on PNP device.
2	Collector	Main current-carrying terminal; electrically tied to pin 4 for parallel current path and thermal relief.
3	Emiter	Reference terminal; connected to higher potential rail in high-side switch applications.
4	Collector	Second collector terminal; shares internal connection with pin 2 to reduce effective thermal resistance.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive use per Stress Test Qualification for Discrete Semiconductors - ensures reliability in harsh environments.
High-temperature operation	Junction temperature rating up to 175 °C - supports placement near engines or power converters without derating.
Dual-collector SOT223 package	Pins 2 and 4 both serve as collector connections - lowers thermal resistance and improves current sharing capability.
Three h_FE variants	BCP53H-Q (63–250), BCP53-10H-Q (63–160), BCP53-16H-Q (100–250) - enables optimized gain selection per circuit stability needs.
Low V_CEsat	−500 mV at I_C/I_B = 10 - reduces power loss and self-heating during saturated switching.

Applications

Linear Voltage Regulators

MOSFET Drivers

Use Scenario: Pass element in adjustable positive LDOs or series regulators where output voltage exceeds input ground reference.

IC Role / Device Role / Timing Role: PNP pass transistor controlling current flow between unregulated input and regulated output rail.

Use Value: High V_CEO (−80 V) allows wide input-output differential; low V_CEsat maintains regulation accuracy under load.

Use Scenario: Level-shifting and current-boosting stage driving N-channel MOSFET gates in half-bridge or high-side configurations.

IC Role / Device Role / Timing Role: Active pull-down transistor providing fast gate discharge path and controlled turn-off timing.

Use Value: Dual-collector construction sustains peak I_CM = −2 A pulses needed for rapid gate discharge without thermal runaway.

High-Side Switches

Power Management

Use Scenario: Load switching in automotive body control modules (BCM), lighting, or HVAC actuators requiring direct battery connection.

IC Role / Device Role / Timing Role: Main switching element placed between supply rail and load, controlled via base resistor network.

Use Value: AEC-Q101 qualification and 175 °C T_j rating ensure functional safety compliance and long-term reliability in under-hood locations.

Use Scenario: Current sensing and feedback amplification in multi-rail DC-DC converter supervision circuits.

IC Role / Device Role / Timing Role: Transimpedance amplifier stage converting shunt voltage into proportional output signal.

Use Value: Stable h_FE over −55 °C to +175 °C ensures consistent gain across automotive temperature range.

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
BCP53-16H-Q	Higher minimum h_FE (100 vs. 63); identical V_CEO, I_C, package, and thermal specs.	Better suited for low-base-drive designs requiring tighter gain consistency at I_C = −150 mA.	Select when circuit demands guaranteed h_FE ≥ 100 at nominal operating point - avoids overdesign of base bias network.
ZTX951	TO-92 package; lower P_tot (1 W); V_CEO = −60 V; h_FE = 100–800; no AEC-Q101 qualification.	Limited to non-automotive, lower-power linear amplifiers or general-purpose switching below 60 V.	Choose only for cost-sensitive consumer applications where thermal budget and automotive compliance are not required.

Compared with BCP53-16H-Q, the BCP53H-QX provides broader h_FE tolerance (63–250) for flexible base drive design, while ZTX951 trades automotive reliability and thermal capability for legacy through-hole compatibility and higher small-signal gain - making BCP53H-QX optimal for production automotive power stages.

Availability

BCP53H-QX is available at Aetrix Electronics and suitable for automotive body electronics, industrial power supplies, and high-reliability linear regulators requiring stable component supply and AEC-Q101 traceability.

Supply support for BCP53H-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 technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and computing markets.

The BCP53H-QX belongs to Nexperia's AEC-Q101-qualified medium-power bipolar transistor family, engineered specifically for robust high-side switching and linear regulation in automotive power distribution systems.

FAQ

What is the maximum allowable junction temperature for BCP53H-QX?

The absolute maximum junction temperature (T_j) is 175 °C, validated per AEC-Q101 stress testing. Operation at this limit requires strict adherence to thermal derating curves - e.g., P_tot must be reduced to 1.2 W at T_amb = 100 °C on a 4-layer FR4 board with 1 cm² collector pad.

Can BCP53H-QX replace BCP53-10H-Q in an existing design?

Yes, BCP53H-QX is functionally interchangeable with BCP53-10H-Q in terms of voltage, current, package, and thermal ratings. However, its wider h_FE range (63–250 vs. 63–160) may require verification of base drive margin under worst-case gain conditions.

Is the SOT223 footprint for BCP53H-QX compatible with standard reflow soldering profiles?

Yes - Nexperia specifies a JEDEC-standard reflow profile for SOT223, with peak temperature ≤ 260 °C for ≤ 30 seconds. The recommended solder land pattern (Fig. 19) uses 4× 1.2 mm thermal pads for pins 2 and 4 to ensure mechanical integrity and thermal performance.

Does BCP53H-QX support pulse operation beyond its DC current rating?

Yes - the device supports I_CM = −2 A for single pulses ≤ 1 ms (duty cycle ≤ 0.02). This capability is validated in SOA curves (Fig. 2) and enables short-duration surge handling in motor drivers or inrush limiting circuits without exceeding thermal limits.

BCP53H-QX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: BCP53H-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:: 725 mW

Frequency - Transition:: 140MHz

Operating Temperature:: 175°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

BCP53H-QX FAQ

1.How can I place an order for BCP53H-QX through Aetrix?

Please submit a Request for Quotation (RFQ) for BCP53H-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 BCP53H-QX reliable?

The price and inventory of BCP53H-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP53H-QX is usually 5 days.

3.What payment methods are accepted for BCP53H-QX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP53H-QX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCP53H-QX?

BCP53H-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCP53H-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 BCP53H-QX?

For technical support, including BCP53H-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP53H-QX requirements.

6.How does Aetrix verify that BCP53H-QX is sourced from the original manufacturer or authorized distributors?

All BCP53H-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 BCP53H-QX meets industry standards.

7.What is the process for return or replacement of BCP53H-QX?

All BCP53H-QX units undergo pre-shipment inspection (PSI). If there is an issue with BCP53H-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 BCP53H-QX part is unused and in its original packaging.

Return procedure for BCP53H-QX:

1.Submit a request within 90 days.

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

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