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

Nexperia USA Inc. BC53-10PAS-QX

Name: BC53-10PAS-QX
Brand: Nexperia USA Inc.
SKU: BC53-10PAS-QX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC53-10PAS-QX

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: 3-UDFN Exposed Pad

Datasheet:: BC53-10PAS-QX.pdf

Description:: TRANS PNP 80V 1A DFN2020D-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BC53-10PAS-QX from Nexperia is a PNP medium power transistor in DFN2020D-3 (SOT1061D) package, rated for −80 V V_CEO, −1 A continuous collector current, and 160 h_FE at −150 mA/−2 V. It features side-wettable flanks for AOI-compatible solder joint inspection, AEC-Q101 qualification, and an exposed thermal pad enabling 0.76 K/W junction-to-solder-point thermal resistance. It serves as a high-side switch or MOSFET driver in automotive power management modules.

For engineers reviewing the BC53-10PAS-QX datasheet, BC53-10PAS-QX pinout, BC53-10PAS-QX application, or BC53-10PAS-QX equivalent, this page delivers verified electrical parameters, thermal derating curves, PCB footprint guidance, and automotive-grade reliability context - all specific to the BC53-10PAS-QX variant with h_FE = 63–160.

Technical Context

This PNP bipolar junction transistor operates in linear or saturated switching modes with V_BE = −1 V typical at −500 mA and V_CE(sat) = −500 mV max at I_C/I_B = 10. Its f_T = 145 MHz supports moderate-speed switching up to ~10 MHz in driver applications.

Thermal performance depends critically on PCB layout: R_th(j-a) ranges from 76 K/W (4-layer board + 1 cm² collector pad) to 298 K/W (single-layer standard footprint). The side-wettable flanks enable automated optical inspection of solder fillets without X-ray.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−80 V - Maximum safe collector-emitter voltage with base open; defines high-side switch voltage headroom in 24 V automotive systems.
I_C	−1 A - Continuous DC collector current rating; supports load switching up to 12 W at 12 V with adequate heatsinking.
h_FE	63–160 - DC current gain range at V_CE = −2 V, I_C = −150 mA; determines required base drive current for saturation control.
V_CE(sat)	−500 mV max - Collector-emitter saturation voltage at I_C = −500 mA, I_B = −50 mA; sets conduction loss and self-heating in switching mode.
f_T	145 MHz - Transition frequency at V_CE = −5 V, I_C = −50 mA; indicates usable bandwidth for pulse-driven gate control.
R_th(j-sp)	20 K/W - Junction-to-solder-point thermal resistance in free air; enables direct thermal modeling from die to PCB copper.
P_tot	1.65 W - Total power dissipation at T_amb ≤ 25 °C on 4-layer FR4 with 1 cm² collector pad; defines maximum steady-state power handling.

Pinout & Package

DFN2020D-3 (SOT1061D) is an ultra-thin, leadless, thermally enhanced plastic package measuring 2.0 mm × 2.0 mm × 0.65 mm with side-wettable flanks for AOI. The exposed collector pad occupies the center underside and connects electrically and thermally to terminal 3.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Current-controlled input node; requires −50 mA drive for reliable saturation at −500 mA collector load.
2	Emitter (E)	Common reference terminal; connected to higher potential rail in high-side configurations; carries full load current.
3	Collector (C)	Output terminal tied to load; electrically and thermally connected to exposed bottom pad for low-inductance, low-resistance path.

Key Features

Feature	Design Value
AEC-Q101 qualified	Qualified for automotive under stress test standard; supports 15-year deployment in engine control, body electronics, and ADAS power stages.
Side-wettable flanks	Enables 100% automated optical inspection of solder fillets without X-ray; reduces post-reflow defect escape in high-volume SMT lines.
Exposed collector pad	Provides dual-path conduction: electrical connection to load + thermal path to PCB; achieves R_th(j-sp) = 20 K/W for improved transient thermal response.
Two h_FE grades	BC53-10PAS-QX (63–160) and BC53-16PAS-QX (100–250) allow precise base drive optimization across production lots and temperature ranges.

Applications

Linear Voltage Regulators

Battery-Driven Devices

Use Scenario: Pass transistor in adjustable LDOs supplying 3.3 V or 5 V rails from 12 V battery sources in automotive infotainment head units.

IC Role / Device Role / Timing Role: PNP pass element regulating output by modulating emitter-base voltage; operates in linear region with dynamic load-step response.

Use Value: −80 V V_CEO provides 6× margin over 12 V nominal battery; low V_CE(sat) minimizes dropout and thermal load at 500 mA output.

Use Scenario: Load switch controlling power to GPS receivers or BLE modules in portable telematics units powered by Li-ion or 12 V vehicle supply.

IC Role / Device Role / Timing Role: High-side discrete switch enabling ON/OFF control via microcontroller GPIO; driven into saturation for minimal conduction loss.

Use Value: AEC-Q101 qualification ensures reliability across −40 °C to +125 °C ambient; side-wettable flanks support zero-defect SMT assembly.

MOSFET Drivers

Power Management

Use Scenario: Level-shifting stage driving N-channel high-side MOSFET gates in buck converters or motor H-bridges within ADAS camera modules.

IC Role / Device Role / Timing Role: Fast-switching PNP pull-down element complementing NPN or NMOS pull-up; leverages 145 MHz f_T for <100 ns turn-off.

Use Value: Low C_c = 15 pF minimizes Miller capacitance loading; exposed collector pad maintains stable switching timing under thermal cycling.

Use Scenario: Current-sense amplifier front-end or fault protection switch in 48 V mild-hybrid vehicle DC-DC converters.

IC Role / Device Role / Timing Role: Precision current mirror component or overcurrent cutoff device; uses tight h_FE binning (63–160) for predictable gain matching.

Use Value: Two h_FE variants allow design-in flexibility: BC53-10PAS-QX for robust base drive margin, BC53-16PAS-QX for reduced drive power.

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
BC807-16X	Same SOT323 package; lower V_CEO (−45 V), lower I_C (−500 mA), h_FE = 100–250; no AEC-Q101 qualification.	Not suitable for 24 V+ automotive systems; limited to consumer or industrial 5–12 V rails.	Select only for cost-sensitive non-automotive designs where voltage and current margins are sufficient.
ZTX951	TO-92 package; V_CEO = −100 V, I_C = −1 A, h_FE = 100–800; through-hole, no AOI capability, R_th(j-a) ≈ 200 K/W.	Requires manual or wave soldering; unsuitable for high-density automotive PCBs needing AOI and thermal efficiency.	Choose only when legacy through-hole compatibility or higher V_CEO margin outweighs SMT manufacturability and thermal performance needs.

Compared with BC807-16X and ZTX951, BC53-10PAS-QX uniquely combines AEC-Q101 qualification, side-wettable flanks for AOI, and 0.76 K/W R_th(j-sp) in a 2 mm × 2 mm footprint - making it the only option qualified for automated, thermally demanding automotive high-side switching.

Availability

BC53-10PAS-QX is available at Aetrix Electronics and suitable for automotive power management, battery-powered telematics, and MOSFET driver circuits requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for BC53-10PAS-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, high-reliability discrete, logic, and MOSFET solutions for automotive, industrial, and mobile markets.

The BC53xPAS-Q series targets automotive-grade PNP switching and amplification, designed specifically to replace legacy TO-92 and SOT23 transistors with enhanced thermal performance, AOI compatibility, and AEC-Q101 compliance.

FAQ

What is the maximum allowable junction temperature for BC53-10PAS-QX?

The absolute maximum junction temperature (T_j) is 150 °C per IEC 60134 limiting values. Operation above this threshold risks permanent parametric shift or failure. Derating is required above 25 °C ambient - e.g., P_tot drops to 1.1 W at 75 °C ambient on a 4-layer board with 1 cm² collector pad.

Does BC53-10PAS-QX support reflow soldering with standard lead-free profiles?

Yes - Nexperia specifies compatibility with JEDEC J-STD-020D.2 peak reflow temperatures up to 260 °C for ≤ 30 seconds. The DFN2020D-3 package uses SnAgCu solder paste and requires the footprint shown in Figure 12 (sot1061d_fr), including 0.35 mm solder mask openings and 0.25 mm stencil aperture.

How does the side-wettable flank design improve manufacturing yield?

The coplanar metal flank on pins 1 and 3 allows automated optical inspection systems to verify solder fillet height, wetting angle, and voiding without X-ray. This eliminates blind spots inherent in traditional DFN packages and reduces field returns due to insufficient solder joints in high-vibration automotive environments.

Can BC53-10PAS-QX be used in linear amplifier configurations?

Yes - its f_T = 145 MHz, low C_c = 15 pF, and h_FE stability across −55 °C to +100 °C support Class-A and AB audio preamplifier stages and precision current mirrors. However, thermal derating must be applied: at 100 °C ambient, P_tot is limited to ~0.42 W on standard FR4, restricting output swing in high-gain linear use.

BC53-10PAS-QX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: 3-UDFN Exposed Pad

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:: 420 mW

Frequency - Transition:: 145MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DFN2020D-3

BC53-10PAS-QX FAQ

1.How can I place an order for BC53-10PAS-QX through Aetrix?

Please submit a Request for Quotation (RFQ) for BC53-10PAS-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 BC53-10PAS-QX reliable?

The price and inventory of BC53-10PAS-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC53-10PAS-QX is usually 5 days.

3.What payment methods are accepted for BC53-10PAS-QX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC53-10PAS-QX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC53-10PAS-QX?

BC53-10PAS-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC53-10PAS-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 BC53-10PAS-QX?

For technical support, including BC53-10PAS-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC53-10PAS-QX requirements.

6.How does Aetrix verify that BC53-10PAS-QX is sourced from the original manufacturer or authorized distributors?

All BC53-10PAS-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 BC53-10PAS-QX meets industry standards.

7.What is the process for return or replacement of BC53-10PAS-QX?

All BC53-10PAS-QX units undergo pre-shipment inspection (PSI). If there is an issue with BC53-10PAS-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 BC53-10PAS-QX part is unused and in its original packaging.

Return procedure for BC53-10PAS-QX:

1.Submit a request within 90 days.

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

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