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

Nexperia USA Inc. BC52PASX

Name: BC52PASX
Brand: Nexperia USA Inc.
SKU: BC52PASX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC52PASX

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: 3-UDFN Exposed Pad

Datasheet:: BC52PASX.pdf

Description:: TRANS PNP 60V 1A DFN2020D-3

Quantity:: RFQ Add To RFQ list

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Inventory:4,883

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Product details

Overview

BC52PASX from Nexperia is a PNP medium power transistor in DFN2020D-3 (SOT1061D) package, rated for −60 V V_CEO, −1 A continuous collector current, and 1.65 W total power dissipation at T_amb = 25 °C. It delivers h_FE of 63–250 at V_CE = −2 V, I_C = −150 mA, and supports high-side switching in automotive-grade linear voltage regulators and MOSFET drivers.

For engineers reviewing the BC52PASX datasheet, BC52PASX pinout, BC52PASX application, or BC52PASX equivalent, this page provides verified package dimensions, thermal resistance values (R_th(j-a) down to 76 K/W), AOI-compatible side-wettable flanks, AEC-Q101 qualification status, and real-world use cases in battery-driven devices and power management circuits.

Technical Context

This PNP bipolar junction transistor operates with emitter-base forward bias and collector-base reverse bias in active or saturation mode. Its design targets medium-power switching and linear amplification where low V_CE(sat) (−500 mV @ I_C = −500 mA, I_B = −50 mA) and high f_T (145 MHz @ V_CE = −5 V, I_C = −50 mA) enable fast turn-on/turn-off and stable gain across temperature (−55 °C to 150 °C).

The DFN2020D-3 package integrates exposed collector pad for direct thermal conduction to PCB copper, enabling power derating curves that sustain 1.1 W at 75 °C ambient when mounted on 1 cm² collector pad - critical for compact, thermally constrained automotive and industrial power stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−60 V: Maximum safe collector-emitter voltage with base open; defines high-side switch blocking capability in 48 V automotive systems.
I_C	−1 A continuous: Sustained DC load current handling without thermal runaway under standard FR4 PCB mounting.
h_FE	63–250 at V_CE = −2 V, I_C = −150 mA: Enables predictable base drive sizing for MOSFET gate control or regulator error amplification.
V_CE(sat)	−500 mV @ I_C = −500 mA, I_B = −50 mA: Minimizes conduction loss in saturated-switch applications like battery protection FET drivers.
f_T	145 MHz @ V_CE = −5 V, I_C = −50 mA: Supports stable small-signal amplification up to mid-VHF range in feedback loops.
R_th(j-a)	76 K/W with 4-layer PCB + 1 cm² collector pad: Enables thermal design margin for 1.1 W operation at 75 °C ambient.
AEC-Q101	Qualified: Meets stress test requirements for discrete semiconductors in automotive applications including temperature cycling and HTRB.

Pinout & Package

DFN2020D-3 (SOT1061D) is an ultra-thin, leadless, surface-mount plastic package measuring 2.0 mm × 2.0 mm × 0.65 mm with side-wettable flanks for automated optical inspection (AOI) and enhanced solder joint reliability. The exposed collector pad provides low-thermal-resistance path to PCB copper.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control terminal for forward-biased PNP operation; requires negative base current relative to emitter to turn on.
2	Emitter (E)	Current source terminal; connected to higher potential rail in high-side switch configurations.
3	Collector (C)	Current sink terminal; electrically and thermally coupled to exposed bottom pad for efficient heat transfer to PCB.

Key Features

Feature	Design Value
Exposed collector pad	Reduces R_th(j-a) to 76 K/W with optimized 4-layer PCB layout, enabling 1.1 W sustained power at 75 °C ambient.
Side-wettable flanks	Enables automated optical inspection (AOI) of solder joints without X-ray, improving manufacturing yield in automotive PCB assembly.
Two h_FE variants	BC52PAS (63–250) and BC52-16PAS (100–250) allow precise gain matching for closed-loop regulator stability or driver stage linearity.
AEC-Q101 qualification	Validated for automotive use per stress test requirements including HTGB, HTRB, and temperature cycling - no additional qualification needed.
Ultra-thin profile	0.65 mm max height enables integration into space-constrained modules such as ECU power supply sections and portable battery packs.

Applications

Linear Voltage Regulators

Battery-Driven Devices

Use Scenario: Pass transistor in adjustable LDOs delivering 3.3 V/1 A from 12 V input in automotive body control modules.

IC Role / Device Role / Timing Role: PNP pass element regulating output by modulating emitter-collector current based on error amplifier feedback.

Use Value: Low V_CE(sat) minimizes dropout voltage; AEC-Q101 rating ensures compliance with ISO 16750-2 transient immunity requirements.

Use Scenario: Load switch controlling power to BLE MCU and sensor subsystem in portable medical wearables.

IC Role / Device Role / Timing Role: High-side switch enabling controlled power-up/down sequencing with minimal quiescent current leakage (<100 nA I_CBO).

Use Value: Ultra-thin DFN2020D-3 saves board area; side-wettable flanks support AOI in high-mix wearable production lines.

MOSFET Drivers

Power Management

Use Scenario: Level-shifting stage driving N-channel high-side MOSFET gate in 24 V industrial motor control half-bridge.

IC Role / Device Role / Timing Role: PNP pull-up transistor complementing NPN pull-down in totem-pole gate driver configuration.

Use Value: 145 MHz f_T ensures fast edge rates (>10 MHz switching); 2 A I_CM handles peak gate charge current surges.

Use Scenario: Current-sense amplifier front-end transistor in bidirectional battery monitor IC for 48 V mild-hybrid vehicles.

IC Role / Device Role / Timing Role: Precision current mirror element providing matched h_FE tracking across temperature for <1% gain drift.

Use Value: Dual h_FE options (BC52PAS vs BC52-16PAS) allow calibration binning; −5 V V_EBO rating supports wide common-mode input 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
BC807-40X	Same DFN2020D-3 package, but lower V_CEO (−45 V) and h_FE (250–600); 1.2 W P_tot at 25 °C.	Not suitable for 48–60 V bus systems; better for 24 V industrial logic-level switching.	Select when higher h_FE tolerance is required and voltage stress is ≤45 V.
MMBT3906DW	SOT-363 dual package; individual device rated −40 V V_CEO, −200 mA I_C; no AEC-Q101 qualification.	Limited to low-current signal switching; unsuitable for 1 A load switching or automotive deployment.	Choose only for non-automotive, dual-transistor signal inversion where space allows larger footprint.

Compared with BC807-40X and MMBT3906DW, BC52PASX uniquely combines 60 V blocking, 1 A current, AEC-Q101 qualification, and ultra-thin DFN packaging - making it the only option among the three qualified for high-reliability 48 V automotive power stages.

Availability

BC52PASX is available at Aetrix Electronics and suitable for linear voltage regulators, battery-driven devices, and MOSFET drivers requiring stable component supply with automotive-grade reliability and compact thermal management.

Supply support for BC52PASX 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 BC52xPAS series belongs to Nexperia's AEC-Q101-qualified medium-power bipolar transistor product line, engineered specifically for high-reliability linear regulation, high-side switching, and gate driving in space- and thermally-constrained automotive ECUs.

FAQ

What is the maximum allowable junction temperature for BC52PASX?

The absolute maximum junction temperature (T_j) is 150 °C per IEC 60134 limiting values. Operation above this threshold risks permanent degradation of h_FE and increased leakage currents. Thermal design must ensure T_j remains below 150 °C under worst-case ambient and power dissipation conditions, using R_th(j-a) values from Table 6 corresponding to the actual PCB layout.

Is BC52PASX pin-compatible with BC52-10PAS or BC52-16PAS?

Yes - all BC52xPAS variants share identical DFN2020D-3 (SOT1061D) package, pinout (B-E-C), and mechanical footprint. They differ only in DC current gain (h_FE) binning: BC52PAS (63–250), BC52-10PAS (63–160), and BC52-16PAS (100–250). Substitution requires verifying gain requirements for stability or linearity in the target circuit.

Does BC52PASX require special reflow profile considerations due to its DFN package?

Yes - the DFN2020D-3 package uses side-wettable flanks and an exposed collector pad, requiring precise stencil design and reflow profiling. Figure 12 specifies a recommended solder land pattern with 0.35 mm pad width and 0.25 mm solder mask clearance. Peak reflow temperature must not exceed 260 °C for ≤10 seconds to avoid delamination or voiding under the thermal pad.

How does the AEC-Q101 qualification impact BC52PASX's use in non-automotive applications?

AEC-Q101 qualification confirms robustness against automotive stress tests (HTGB, HTRB, temperature cycling), which translates to superior long-term reliability in industrial and medical applications with wide temperature swings or high uptime requirements. It does not imply automotive-specific features like PPAP documentation, but provides measurable confidence in parametric stability and failure rate under thermal and electrical stress.

BC52PASX 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):: 60 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:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DFN2020D-3

BC52PASX FAQ

1.How can I place an order for BC52PASX through Aetrix?

Please submit a Request for Quotation (RFQ) for BC52PASX 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 BC52PASX reliable?

The price and inventory of BC52PASX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC52PASX is usually 5 days.

3.What payment methods are accepted for BC52PASX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC52PASX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC52PASX?

BC52PASX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC52PASX 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 BC52PASX?

For technical support, including BC52PASX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC52PASX requirements.

6.How does Aetrix verify that BC52PASX is sourced from the original manufacturer or authorized distributors?

All BC52PASX 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 BC52PASX meets industry standards.

7.What is the process for return or replacement of BC52PASX?

All BC52PASX units undergo pre-shipment inspection (PSI). If there is an issue with BC52PASX, 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 BC52PASX part is unused and in its original packaging.

Return procedure for BC52PASX:

1.Submit a request within 90 days.

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

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