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

Nexperia USA Inc. 2PA1576Q,135

Name: 2PA1576Q,135
Brand: Nexperia USA Inc.
SKU: 2PA1576Q,135
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2PA1576Q,135

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: SC-70, SOT-323

Datasheet:: 2PA1576Q,135.pdf

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

Quantity:: RFQ Add To RFQ list

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Inventory:4,681

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Product details

Overview

2PA1576Q 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, with DC current gain (h_FE) of 120–270 at −6 V V_CE and −1 A I_C, and typical collector capacitance of 2.5 pF - used for low-voltage switching and small-signal amplification in space-constrained consumer and industrial PCBs.

For engineers reviewing the 2PA1576Q datasheet, 2PA1576Q pinout, 2PA1576Q application, or 2PA1576Q equivalent, key selection criteria include verified PNP polarity, SC-70 thermal resistance (625 K/W), guaranteed h_FE range, V_CE(sat) ≤ −500 mV at −50 mA/−5 mA drive, and non-automotive qualification status.

Technical Context

This discrete PNP BJT operates in linear or saturated switching mode with base-emitter forward bias enabling controlled collector current flow. Its low V_CE(sat) (≤ −500 mV) and low C_c (2.5 pF typ.) support fast turn-off and minimal signal distortion in audio preamp and logic-level interface stages.

The device adheres to IEC 60134 absolute maximum ratings, with T_j = 150 °C, P_tot = 200 mW at T_amb ≤ 25 °C on FR4 PCB, and thermal resistance R_th(j-a) = 625 K/W - confirming suitability for thermally unmanaged, low-power surface-mount designs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−50 V - Maximum safe collector-emitter voltage with base open; defines upper rail limit in PNP switch configurations.
I_C	−150 mA - Continuous collector current rating; sets load-driving capability in active or saturated operation.
h_FE	120–270 - DC current gain at −6 V V_CE, −1 A I_C; determines required base drive for target collector current.
V_CE(sat)	≤ −500 mV - Saturation voltage at −50 mA I_C, −5 mA I_B; directly impacts power loss and voltage headroom in switching applications.
C_c	2.5 pF typ. - Collector capacitance at −12 V V_CB; limits high-frequency response and affects stability in RF-adjacent circuits.
f_T	100 MHz - Transition frequency at −12 V V_CE, −2 mA I_C; confirms usable bandwidth for audio and low-speed digital signal conditioning.

Pinout & Package

SOT323 (SC-70) plastic surface-mount package: 3-terminal, 1.3 mm pitch, 2.0 mm × 1.25 mm × 0.95 mm body, optimized for automated reflow assembly on FR4 PCBs with standard footprint per Figure 2.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Current-controlled input node; requires ≥0.7 V forward bias relative to emitter to enable conduction.
2	Emitter (E)	Reference terminal for PNP operation; connected to higher potential rail in common-emitter switch topologies.
3	Collector (C)	Output current path; sinks current when base is forward-biased; polarity must match PNP sourcing convention.

Key Features

Feature	Design Value
Low collector capacitance	2.5 pF typ. - Enables stable operation up to 100 MHz f_T with minimal Miller effect in amplifier stages.
Guaranteed h_FE range	120–270 - Supports predictable base resistor sizing across production lots without gain binning.
Low saturation voltage	≤ −500 mV at −50 mA/−5 mA - Reduces conduction loss and self-heating in battery-powered switching nodes.
Thermally characterized	R_th(j-a) = 625 K/W on FR4 - Allows accurate junction temperature estimation under real PCB layout conditions.

Applications

Audio Pre-amplifier Stage

Logic-Level Translation

Use Scenario: Amplifying weak microphone or sensor signals before ADC sampling in portable audio devices.

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

Use Value: 100 MHz f_T and 2.5 pF C_c preserve audio band fidelity; h_FE consistency ensures repeatable gain calibration.

Use Scenario: Converting 3.3 V CMOS logic outputs to drive 5 V TTL-compatible inputs in mixed-voltage systems.

IC Role / Device Role / Timing Role: Active-low level shifter using PNP emitter-follower or saturated switch topology.

Use Value: −500 mV V_CE(sat) minimizes voltage drop; −150 mA I_C supports fan-out to multiple loads.

LED Current Sink Driver

Power Rail Sequencing Switch

Use Scenario: Controlling indicator LEDs in IoT edge nodes where low quiescent current and compact size are critical.

IC Role / Device Role / Timing Role: Saturated PNP switch sinking LED current from V_CC through anode to collector.

Use Value: SOT323 footprint saves board area; −150 mA rating covers multi-LED strings; low C_c prevents ghost triggering.

Use Scenario: Enabling/disabling auxiliary power rails during system boot-up or sleep mode in embedded controllers.

IC Role / Device Role / Timing Role: High-side PNP switch controlling V_OUT via base pull-down from microcontroller GPIO.

Use Value: −50 V V_CEO accommodates 3.3 V/5 V/12 V rail control; guaranteed h_FE ensures reliable turn-on with limited GPIO drive.

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
2PA1776Q	Same SOT323 package; h_FE = 160–320; V_CEO = −60 V; C_c = 2.2 pF	Higher breakdown voltage and slightly lower capacitance - better for 12 V rail switching with tighter noise margins.	Select when V_CEO margin >10 V is required or lower C_c improves stability in feedback paths.
MMBT4403	Same SOT23 package; h_FE = 100–300; V_CEO = −40 V; C_c = 3.5 pF; not automotive-qualified	Larger footprint (SOT23 vs SOT323); lower V_CEO; higher C_c - less suitable for dense layouts or 50 V systems.	Choose only if SOT23 is already standardized in design and −40 V rating suffices for target supply rails.

Compared with 2PA1576Q, 2PA1776Q offers higher voltage tolerance and lower capacitance for improved noise immunity, while MMBT4403 trades miniaturization for wider availability but sacrifices voltage headroom and high-frequency performance.

Availability

2PA1576Q is available at Aetrix Electronics and suitable for audio pre-amplifier stages, logic-level translation, LED current sink drivers, and power rail sequencing switches requiring stable component supply and consistent parametric performance across production batches.

Supply support for 2PA1576Q 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 high-volume, high-reliability discrete and logic devices, with leadership in automotive, industrial, and mobile applications.

The 2PA1576Q belongs to Nexperia's general-purpose bipolar transistor product line, designed specifically for cost-sensitive, space-constrained consumer and industrial applications requiring predictable DC gain and low parasitic capacitance.

FAQ

Is the 2PA1576Q qualified for automotive applications?

No. The 2PA1576Q is explicitly designated as non-automotive in its revision history and legal disclaimers. It lacks AEC-Q101 qualification, has no automotive-grade screening, and is not tested to automotive temperature or reliability standards. For automotive use, consult Nexperia's -AQ qualified variants such as PBSS4041Q.

What is the maximum allowable base current for continuous operation?

The absolute maximum peak base current (I_BM) is −200 mA per the limiting values table, but continuous operation must respect the total power dissipation limit of 200 mW. At typical V_BE ≈ −0.75 V, sustained I_B should remain below −10 mA to avoid exceeding P_tot when combined with collector power.

Can the 2PA1576Q replace an NPN transistor like BC847 in the same circuit?

No - polarity reversal is not functionally equivalent. Replacing an NPN with this PNP requires inverting supply connections, swapping emitter/collector roles, and reversing biasing logic. Direct substitution would result in no conduction or device damage. Use its NPN complement 2PC4081Q for matched topology replacement.

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

Yes. All Nexperia products shipped after July 2006, including 2PA1576Q, comply with RoHS Directive 2011/65/EU. The 'F%Q' marking follows Nexperia's standard coding scheme where 'F' denotes the base type and 'Q' confirms halogen-free and RoHS-compliant construction per their public compliance documentation.

2PA1576Q,135 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:: 120 @ 1mA, 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

2PA1576Q,135 FAQ

1.How can I place an order for 2PA1576Q,135 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2PA1576Q,135 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 2PA1576Q,135 reliable?

The price and inventory of 2PA1576Q,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2PA1576Q,135 is usually 5 days.

3.What payment methods are accepted for 2PA1576Q,135?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2PA1576Q,135 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2PA1576Q,135?

2PA1576Q,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2PA1576Q,135 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 2PA1576Q,135?

For technical support, including 2PA1576Q,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2PA1576Q,135 requirements.

6.How does Aetrix verify that 2PA1576Q,135 is sourced from the original manufacturer or authorized distributors?

All 2PA1576Q,135 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 2PA1576Q,135 meets industry standards.

7.What is the process for return or replacement of 2PA1576Q,135?

All 2PA1576Q,135 units undergo pre-shipment inspection (PSI). If there is an issue with 2PA1576Q,135, 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 2PA1576Q,135 part is unused and in its original packaging.

Return procedure for 2PA1576Q,135:

1.Submit a request within 90 days.

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

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