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

Nexperia USA Inc. 2PA1576R-QX

Name: 2PA1576R-QX
Brand: Nexperia USA Inc.
SKU: 2PA1576R-QX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2PA1576R-QX

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: SC-70, SOT-323

Datasheet:: 2PA1576R-QX.pdf

Description:: TRANS PNP 50V 0.15A SOT-323

Quantity:: RFQ Add To RFQ list

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Product details

Overview

2PA1576R-QX from Nexperia is a PNP general-purpose bipolar junction transistor in SOT323 (SC-70) package, rated for −50 V V_CEO, −150 mA I_C, and 180–390 h_FE at −1 mA collector current; designed for low-power automotive switching and amplification in space-constrained PCBs.

For engineers reviewing the 2PA1576R-QX datasheet, 2PA1576R-QX pinout, 2PA1576R-QX application, or 2PA1576R-QX equivalent, key selection criteria include AEC-Q101 qualification, low 2.5 pF collector capacitance, −500 mV V_CE(sat) at −50 mA/−5 mA drive, thermal resistance of 625 K/W on FR4, and SC-70 footprint compatibility.

Technical Context

This discrete PNP transistor operates in linear amplification and saturated switching modes, with DC current gain specified across −1 mA to −50 mA collector currents and validated up to 150 °C junction temperature. Its −60 V V_CBO and −6 V V_EBO ratings support robust biasing in low-voltage automotive subsystems.

The device exhibits 100 MHz f_T at −12 V V_CE and −2 mA I_C, enabling stable operation in audio-frequency and low-speed digital signal conditioning. Thermal performance is defined for standard FR4 PCB mounting with single-sided copper and tin plating.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−50 V - maximum safe collector-emitter voltage under open-base condition
I_C	−150 mA - continuous DC collector current rating for reliable thermal operation
h_FE	180–390 - DC current gain range at −6 V V_CE, −1 mA I_C, 25 °C ambient
V_CE(sat)	−500 mV - collector-emitter saturation voltage at −50 mA I_C, −5 mA I_B
C_c	2.5 pF (typ.) - low collector capacitance enabling minimal signal distortion in RF-adjacent circuits
f_T	100 MHz - transition frequency confirming usable bandwidth for audio and control signals
R_th(j-a)	625 K/W - junction-to-ambient thermal resistance on standard FR4 PCB, defining power derating slope

Pinout & Package

SOT323 (SC-70) plastic surface-mount package: 3-lead, 1.3 mm pitch, 2.0 mm × 1.25 mm × 0.95 mm body size, optimized for automated reflow assembly and high-density routing.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control terminal for forward-biased PNP operation; requires negative base current relative to emitter
2	Emitter (E)	Current source terminal; connected to higher potential in PNP configuration; defines reference for V_EB
3	Collector (C)	Current sink terminal; output node for switched load or amplified signal path

Key Features

Feature	Design Value
AEC-Q101 qualified	Stress-tested per Automotive Electronics Council standard for discrete semiconductors, supporting under-hood deployment
Low V_CE(sat)	−500 mV enables efficient switching with minimal conduction loss in 5 V–12 V systems
Low C_c	2.5 pF typical collector capacitance reduces Miller effect and improves high-frequency stability
Small-footprint SOT323	2.0 mm × 1.25 mm outline allows placement in tight spaces without sacrificing thermal margin on FR4

Applications

Automotive Door Module

Industrial Sensor Interface

Use Scenario: Driving small solenoids and LED indicators in door latch and window control units.

IC Role / Device Role / Timing Role: PNP switch controlling 12 V loads with logic-level base drive from microcontroller GPIO.

Use Value: −500 mV V_CE(sat) minimizes heat generation during sustained activation; AEC-Q101 ensures reliability over 15-year vehicle life.

Use Scenario: Level-shifting and buffering analog sensor outputs (e.g., thermistor, potentiometer) into ADC inputs.

IC Role / Device Role / Timing Role: Emitter-follower amplifier providing low-impedance drive while maintaining signal polarity.

Use Value: 180–390 h_FE ensures stable gain across temperature; low 2.5 pF C_c prevents capacitive loading of sensitive analog nodes.

Consumer Audio Biasing

Power Supply Enable Control

Use Scenario: Providing precise bias current to Class-A headphone amplifier stages in portable devices.

IC Role / Device Role / Timing Role: Linear-mode current source setting quiescent operating point for low-noise amplification.

Use Value: Tight h_FE spread and −100 nA I_CBO at 25 °C ensure predictable DC bias stability and low offset drift.

Use Scenario: Enabling/disabling auxiliary 3.3 V or 5 V rails in multi-rail embedded systems via MCU-controlled enable line.

IC Role / Device Role / Timing Role: High-side switch isolating downstream circuitry from main supply when inactive.

Use Value: −50 V V_CEO provides margin against load-dump transients; −6 V V_EBO supports safe reverse-biasing during rail sequencing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP general-purpose transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC807-40W	Same SOT323 package; h_FE = 250–630 (wider spread); V_CEO = −45 V; not AEC-Q101 qualified	Non-automotive consumer/industrial use only; lower voltage margin limits use in 12 V automotive systems	Select when cost sensitivity outweighs automotive qualification and tighter h_FE tolerance
PN2907A	TO-92 through-hole package; V_CEO = −60 V; I_C = −600 mA; no AEC-Q101 qualification	Prototyping or legacy through-hole designs; unsuitable for automated SMT production or space-constrained layouts	Select only for hand-soldered evaluation or non-SMT legacy upgrades

Compared with BC807-40W and PN2907A, the 2PA1576R-QX delivers guaranteed automotive qualification, tighter h_FE range, and optimized SOT323 thermal performance-making it the preferred choice for production-grade automotive electronics where footprint, reliability, and consistency are critical.

Availability

2PA1576R-QX is available at Aetrix Electronics and suitable for automotive door modules, industrial sensor interfaces, consumer audio biasing, and power supply enable control requiring stable component supply and long-term lifecycle support.

Supply support for 2PA1576R-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 consumer markets.

The 2PA1576R-QX belongs to Nexperia's AEC-Q101-qualified general-purpose transistor product line, engineered for robust, low-power switching and amplification in harsh environments with strict space and thermal constraints.

FAQ

Is the 2PA1576R-QX pin-compatible with the NPN complement 2PC4081R-Q?

No. While 2PA1576R-QX (PNP) and 2PC4081R-Q (NPN) share identical SOT323 packaging and pinout order (Base–Emitter–Collector), their complementary polarity means direct substitution requires circuit-level redesign-including reversal of supply polarity, bias network orientation, and signal inversion logic. They are functional complements, not pin-for-pin replacements.

What is the maximum allowable power dissipation at 85 °C ambient temperature?

At 85 °C ambient, the 2PA1576R-QX must be derated from its 200 mW T_amb ≤ 25 °C rating using R_th(j-a) = 625 K/W. The junction temperature limit is 150 °C, so allowable ΔT = 65 K. Maximum power = 65 K ÷ 625 K/W = 104 mW. This value assumes standard FR4 PCB mounting with single-sided copper and tin plating.

Does the marking code 'F%R' indicate RoHS compliance?

Yes. The 'F%R' marking on 2PA1576R-QX devices conforms to Nexperia's standard RoHS-compliant labeling scheme. The 'F' prefix denotes lead-free termination, '%' is a site code placeholder, and 'R' indicates tape-and-reel packaging. Full RoHS compliance is confirmed in Nexperia's official declaration of conformity and material content reports.

Can this transistor be used in linear regulator pass element applications?

No. The 2PA1576R-QX is not rated for linear regulator pass applications due to its limited 200 mW power dissipation and absence of Safe Operating Area (SOA) curves in the datasheet. Its design targets switching and small-signal amplification-not continuous high-current, high-V_CE operation. Use dedicated pass transistors with SOA validation and higher P_tot for such roles.

2PA1576R-QX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: SC-70, SOT-323

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 150 mA

Voltage - Collector Emitter Breakdown (Max):: 50 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 5mA, 50mA

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 180 @ 1A, 6V

Power - Max:: 200 mW

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-323

2PA1576R-QX FAQ

1.How can I place an order for 2PA1576R-QX through Aetrix?

Please submit a Request for Quotation (RFQ) for 2PA1576R-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 2PA1576R-QX reliable?

The price and inventory of 2PA1576R-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2PA1576R-QX is usually 5 days.

3.What payment methods are accepted for 2PA1576R-QX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2PA1576R-QX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2PA1576R-QX?

2PA1576R-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2PA1576R-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 2PA1576R-QX?

For technical support, including 2PA1576R-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2PA1576R-QX requirements.

6.How does Aetrix verify that 2PA1576R-QX is sourced from the original manufacturer or authorized distributors?

All 2PA1576R-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 2PA1576R-QX meets industry standards.

7.What is the process for return or replacement of 2PA1576R-QX?

All 2PA1576R-QX units undergo pre-shipment inspection (PSI). If there is an issue with 2PA1576R-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 2PA1576R-QX part is unused and in its original packaging.

Return procedure for 2PA1576R-QX:

1.Submit a request within 90 days.

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

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