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

NXP Semiconductors 2PA1015Y,126

Name: 2PA1015Y,126
Brand: NXP Semiconductors
SKU: 2PA1015Y,126
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2PA1015Y,126

Manufacturer:: NXP Semiconductors

Category:: Single Bipolar Transistors

Package:: TO-226-3, TO-92-3 (TO-226AA) Formed Leads

Datasheet:: 2PA1015Y,126.pdf

Description:: TRANS PNP 50V 0.15A TO-92-3

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Product details

Overview

2PA1015Y,126 from Nexperia (formerly Philips Semiconductors) is a PNP general-purpose bipolar junction transistor in TO-92 (SOT54/SC-43A) package, rated for −50 V V_CEO, −150 mA I_C, 500 mW P_tot, with DC current gain h_FE of 120–240 at −2 mA collector current, used in low-voltage switching and linear amplification circuits.

For engineers reviewing the 2PA1015Y,126 datasheet, 2PA1015Y,126 pinout, 2PA1015Y,126 application, or 2PA1015Y,126 equivalent, key selection considerations include its PNP polarity, TO-92 through-hole mounting, −50 V breakdown rating, −150 mA DC current capability, and verified h_FE range across operating conditions.

Technical Context

This discrete PNP BJT operates in active, saturation, and cutoff regions with defined thermal resistance R_th(j-a) = 250 K/W on FR4 PCB. Its low-noise figure (10 dB at 1 kHz) and transition frequency f_T ≥ 80 MHz support audio-frequency amplification and moderate-speed switching.

Designed for DC-coupled and capacitively coupled small-signal stages, it features low V_CE(sat) (−300 mV at −100 mA/−10 mA) and tight V_BE(sat) (−1.1 V), enabling efficient operation in battery-powered and logic-level interface circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−50 V - maximum safe collector-emitter voltage under open-base condition, defining high-side switch headroom
I_C	−150 mA - continuous DC collector current limit, suitable for relay drivers and LED loads
P_tot	500 mW - total power dissipation at T_amb ≤ 25 °C, requiring heatsinking above ~100 mW in enclosed environments
h_FE	120–240 - DC current gain at V_CE = −6 V, I_C = −2 mA, ensuring stable biasing in amplifier stages
f_T	≥ 80 MHz - transition frequency at V_CB = −10 V, I_C = −1 mA, supporting audio and low-MHz signal amplification
R_th(j-a)	250 K/W - junction-to-ambient thermal resistance on FR4 board, guiding PCB copper area requirements

Pinout & Package

Plastic single-ended leaded (through-hole) TO-92 package, also designated SOT54 and SC-43A, with 3 leads and standard 2.54 mm lead pitch.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Current-controlled input node; requires series resistor to limit I_B ≤ −200 mA peak
2	Collector	High-current output terminal; connected to load return path in PNP switch configurations
3	Emitter	Common reference terminal; tied to positive rail in high-side switch applications

Key Features

Feature	Design Value
Low-voltage PNP architecture	Rated for −50 V V_CEO and −5 V V_EBO, enabling use in 5 V–24 V systems with margin
Controlled h_FE spread	120–240 at −2 mA ensures predictable bias stability across production lots
Low saturation voltage	V_CE(sat) ≤ −300 mV at −100 mA/−10 mA reduces conduction loss in switching applications
FR4-optimized thermal design	R_th(j-a) = 250 K/W allows direct mounting on standard PCBs without auxiliary heatsinks up to ~200 mW

Applications

Audio Pre-amplifier Stage	Low-Voltage Relay Driver
Use Scenario: Amplifying microphone-level signals in portable intercoms and headset amplifiers. IC Role / Device Role / Timing Role: Small-signal PNP amplifier in common-emitter configuration with emitter degeneration. Use Value: 10 dB noise figure and ≥80 MHz f_T preserve signal fidelity up to 20 kHz while maintaining low quiescent current.	Use Scenario: Driving 12 V, 80 mA coil relays from microcontroller GPIO pins. IC Role / Device Role / Timing Role: High-side PNP switch with base resistor network controlling coil current path. Use Value: −300 mV V_CE(sat) minimizes power loss and heat generation during sustained relay activation.
LED Current Sink Control	Level Translation Interface
Use Scenario: Regulating current through indicator LEDs in automotive dashboard modules. IC Role / Device Role / Timing Role: Linear current sink with emitter-follower biasing for stable brightness control. Use Value: Tight h_FE tolerance (120–240) enables consistent LED current across temperature and unit variance.	Use Scenario: Translating 3.3 V logic outputs to 5 V or 12 V domains in industrial I/O cards. IC Role / Device Role / Timing Role: Inverting level shifter with pull-up to higher rail and grounded base drive. Use Value: −50 V V_CBO and −150 mA I_C support robust translation into noisy 12 V industrial buses.

Audio Pre-amplifier Stage

Low-Voltage Relay Driver

Use Scenario: Amplifying microphone-level signals in portable intercoms and headset amplifiers.

IC Role / Device Role / Timing Role: Small-signal PNP amplifier in common-emitter configuration with emitter degeneration.

Use Value: 10 dB noise figure and ≥80 MHz f_T preserve signal fidelity up to 20 kHz while maintaining low quiescent current.

Use Scenario: Driving 12 V, 80 mA coil relays from microcontroller GPIO pins.

IC Role / Device Role / Timing Role: High-side PNP switch with base resistor network controlling coil current path.

Use Value: −300 mV V_CE(sat) minimizes power loss and heat generation during sustained relay activation.

LED Current Sink Control

Level Translation Interface

Use Scenario: Regulating current through indicator LEDs in automotive dashboard modules.

IC Role / Device Role / Timing Role: Linear current sink with emitter-follower biasing for stable brightness control.

Use Value: Tight h_FE tolerance (120–240) enables consistent LED current across temperature and unit variance.

Use Scenario: Translating 3.3 V logic outputs to 5 V or 12 V domains in industrial I/O cards.

IC Role / Device Role / Timing Role: Inverting level shifter with pull-up to higher rail and grounded base drive.

Use Value: −50 V V_CBO and −150 mA I_C support robust translation into noisy 12 V industrial buses.

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
BC557B	Same TO-92 package; h_FE = 200–450 at −2 mA; V_CEO = −45 V; P_tot = 500 mW	Slightly lower breakdown voltage; wider h_FE spread may require recalibration of bias networks	Preferred where higher gain consistency is needed at lower cost; verify V_CEO margin in 48 V systems
MPSA92	TO-92; V_CEO = −300 V; I_C = −500 mA; P_tot = 625 mW; h_FE = 25–100 at −10 mA	Higher voltage/current rating but lower and less predictable gain; larger V_CE(sat)	Used when extended breakdown margin or higher current is required; not drop-in due to h_FE and saturation behavior differences

Compared with BC557B and MPSA92, the 2PA1015Y,126 offers balanced performance for 24 V-class switching and audio amplification-its 120–240 h_FE range and −300 mV V_CE(sat) provide tighter bias control and lower conduction loss than MPSA92, while its −50 V rating gives superior headroom over BC557B in industrial supply rails.

Availability

2PA1015Y,126 is available at Aetrix Electronics and suitable for low-voltage relay driving, LED current regulation, and audio pre-amplification requiring stable component supply and long-term obsolescence management.

Supply support for 2PA1015Y,126 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 delivering high-performance, reliable discrete, logic, and MOSFET solutions rooted in Philips' legacy.

The 2PA1015Y,126 belongs to Nexperia's general-purpose bipolar transistor product line, engineered for cost-sensitive, high-volume applications in consumer, industrial, and automotive subsystems where reliability and manufacturability are critical.

FAQ

What is the package type and lead configuration of the 2PA1015Y,126?

The 2PA1015Y,126 uses a plastic TO-92 package, also known as SOT54 or SC-43A, with three through-hole leads arranged in standard 2.54 mm pitch. Pin 1 is base, Pin 2 is collector, and Pin 3 is emitter-verified per Philips' 2004 datasheet and Nexperia's current packaging documentation for this variant.

What are the absolute maximum ratings for the 2PA1015Y,126?

The 2PA1015Y,126 has V_CEO = −50 V, I_C = −150 mA, P_tot = 500 mW at T_amb ≤ 25 °C, and T_j = 150 °C. These values are defined per IEC 60134 and assume mounting on FR4 PCB-exceeding any one rating risks permanent damage.

Does the 2PA1015Y,126 have a specified noise figure, and under what conditions?

Yes, the 2PA1015Y,126 has a noise figure of 10 dB, measured at V_CE = −5 V, I_C = −200 µA, R_S = 2 kΩ, f = 1 kHz, and bandwidth = 200 Hz. This specification supports its use in low-noise audio pre-amplifier stages where signal integrity is critical.

How does the h_FE of the 2PA1015Y,126 vary with operating conditions?

The 2PA1015Y,126 exhibits h_FE = 120–240 at V_CE = −6 V and I_C = −2 mA, but drops to ≥25 at I_C = −150 mA. This wide dynamic range means bias networks must be designed for worst-case gain at full load to ensure saturation in switching applications.

Is there an NPN complement to the 2PA1015Y,126, and what is its part number?

Yes, the NPN complement to the 2PA1015Y,126 is the 2PC1815, which shares the same TO-92 package, voltage/current ratings, and thermal characteristics. Both devices are designed for matched pair use in differential amplifiers and complementary switching stages.

2PA1015Y,126 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: -

Package/Case:: TO-226-3, TO-92-3 (TO-226AA) Formed Leads

Packaging:: Tape & Box (TB)

Product Status:: Obsolete

Transistor Type:: PNP

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

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

Vce Saturation (Max) @ Ib, Ic:: 300mV @ 10mA, 100mA

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 120 @ 2mA, 6V

Power - Max:: 500 mW

Frequency - Transition:: 80MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92-3

2PA1015Y,126 FAQ

1.How can I place an order for 2PA1015Y,126 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2PA1015Y,126 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 2PA1015Y,126 reliable?

The price and inventory of 2PA1015Y,126 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2PA1015Y,126 is usually 5 days.

3.What payment methods are accepted for 2PA1015Y,126?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2PA1015Y,126 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2PA1015Y,126?

2PA1015Y,126 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2PA1015Y,126 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 2PA1015Y,126?

For technical support, including 2PA1015Y,126 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2PA1015Y,126 requirements.

6.How does Aetrix verify that 2PA1015Y,126 is sourced from the original manufacturer or authorized distributors?

All 2PA1015Y,126 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 2PA1015Y,126 meets industry standards.

7.What is the process for return or replacement of 2PA1015Y,126?

All 2PA1015Y,126 units undergo pre-shipment inspection (PSI). If there is an issue with 2PA1015Y,126, 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 2PA1015Y,126 part is unused and in its original packaging.

Return procedure for 2PA1015Y,126:

1.Submit a request within 90 days.

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

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