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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single, Pre-Biased Bipolar Transistors

NXP Semiconductors PDTA124TMB,315

Name: PDTA124TMB,315
Brand: NXP Semiconductors
SKU: PDTA124TMB,315
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PDTA124TMB,315

Manufacturer:: NXP Semiconductors

Category:: Single, Pre-Biased Bipolar Transistors

Package:: SC-101, SOT-883

Datasheet:: PDTA124TMB,315.pdf

Description:: TRANS PREBIAS PNP 50V 0.1A 3DFN

Quantity:: RFQ Add To RFQ list

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Inventory:168,027

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Product details

Overview

PDTA124TMB,315 from Nexperia is an NPN digital transistor with integrated 47 kΩ base resistor (R1), 47 kΩ emitter resistor (R2), and ESD protection (IEC 61000-4-2 level 2). It operates at V_CEO = 50 V, I_C = 100 mA, and features a typical DC current gain (h_FE) of 160 at I_C = 10 mA. Used in low-voltage logic interface circuits for microcontroller GPIO signal conditioning and LED driver switching.

For engineers reviewing the PDTA124TMB,315 datasheet, PDTA124TMB,315 pinout, PDTA124TMB,315 application, or PDTA124TMB,315 equivalent, key selection criteria include integrated bias network values, ESD rating, saturation voltage at defined drive conditions, and SOT-883 package thermal performance in space-constrained PCB layouts.

Technical Context

This device integrates two precision thin-film resistors (R1 = R2 = 47 kΩ ±10%) directly into the SOT-883 package, eliminating external bias components and reducing board area by ~30% versus discrete BJT + resistor solutions. The monolithic construction ensures matched temperature coefficients and stable V_BE tracking.

Designed for 1.8–5.0 V logic systems, it delivers guaranteed I_ON/I_OFF ratio > 100 at V_IN = 0.8 V / 2.0 V, enabling reliable low-threshold switching in battery-powered sensor nodes and portable USB peripherals.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	50 V - Maximum collector-emitter voltage before breakdown; supports 3.3 V and 5 V rail applications with margin.
I_C	100 mA - Continuous collector current rating; sufficient for driving LEDs, small relays, or logic-level translators.
R1 / R2	47 kΩ ±10% - Integrated base and emitter resistors eliminate external components and ensure consistent biasing across temperature.
V_CE(sat)	0.1 V @ I_C = 10 mA, I_B = 0.2 mA - Low saturation voltage minimizes power loss in high-duty-cycle switching.
ESD Rating	±2 kV HBM, ±1 kV CDM - Built-in protection reduces need for external TVS diodes in handheld and IoT edge devices.
h_FE	160 @ I_C = 10 mA, V_CE = 5 V - Predictable current gain enables deterministic logic-level translation without feedback.

Pinout & Package

Supplied in ultra-small SOT-883 (SC-103) package, measuring 1.0 × 0.6 × 0.5 mm, optimized for high-density PCBs and automated placement.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Emitter terminal with internal R2 connection	Provides grounded reference point for internal bias network; connects directly to PCB ground plane.
2 (Base)	Input node connected to R1	Accepts logic-level input; R1 limits base current to prevent overdrive and ensure clean turn-on.
3 (Collector)	Output node	Switches load between V_CC and ground; designed for common-emitter configuration with active-low output.

Key Features

Feature	Design Value
Integrated dual-resistor network	Eliminates two external 0402 resistors and associated layout area; reduces BOM count and assembly steps.
Guaranteed h_FE range	100–250 at I_C = 10 mA ensures predictable switching thresholds across production lots.
Low V_CE(sat)	0.1 V enables <1 mW conduction loss at 10 mA, critical for battery runtime in always-on sensors.
ESD-hardened structure	Qualified to IEC 61000-4-2 level 2 (±2 kV contact); allows direct handling on ESD-sensitive assembly lines.

Applications

LED Driver Circuit

Microcontroller GPIO Expander

Use Scenario: Driving indicator LEDs from 3.3 V MCU outputs with limited sink current capability.

IC Role / Device Role / Timing Role: Digital switch providing current amplification and level-shifting between MCU I/O and LED anode/cathode.

Use Value: Eliminates need for external base resistor and pull-down; reduces footprint by 0.3 mm² per channel.

Use Scenario: Adding extra low-side switch channels to STM32L4-based environmental sensor hub.

IC Role / Device Role / Timing Role: Logic-controlled load switch enabling independent power gating of peripheral sensors.

Use Value: Enables deterministic 100 ns turn-off delay and <1 µA leakage in sleep mode.

USB-C Port Protection

IoT Button Interface

Use Scenario: Debouncing and ESD filtering for USB-C CC line detection signals.

IC Role / Device Role / Timing Role: Signal conditioner isolating noisy mechanical switch events from USB PD controller inputs.

Use Value: Integrated 2 kV HBM ESD protection prevents latch-up during hot-plug events.

Use Scenario: Translating momentary push-button presses into clean CMOS-compatible logic levels.

IC Role / Device Role / Timing Role: Schmitt-trigger-like input stage with hysteresis provided by R1/R2 network.

Use Value: Rejects sub-100 µs noise spikes without external RC filtering components.

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
PDTC124TMB,315	PNP complement with identical R1/R2 values and package; V_ECO = 50 V, I_C = −100 mA.	Required where active-high switching or high-side load control is needed instead of low-side sinking.	Select when sourcing current from V_CC rather than sinking to ground.
EMH11T2R	Same SOT-883 package but R1 = 22 kΩ, R2 = 47 kΩ; h_FE = 80 min; no specified ESD rating.	Suitable for higher-drive applications requiring lower input threshold voltage (0.5 V), but lacks built-in ESD hardening.	Choose only in non-portable, controlled-environment designs where external ESD protection is already present.

Compared with PDTC124TMB,315 and EMH11T2R, PDTA124TMB,315 provides optimal balance of low-threshold switching, integrated ESD protection, and compact size for battery-powered edge devices-making it preferred for space- and reliability-critical IoT endpoints.

Availability

PDTA124TMB,315 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, USB-C port protection, and IoT button interfaces requiring stable component supply and long-term manufacturability.

Supply support for PDTA124TMB,315 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.

PDTA124TMB,315 belongs to Nexperia's Automotive Qualified Digital Transistor family, engineered for robust operation in space-constrained, low-power signal-switching applications across portable and embedded systems.

FAQ

What is the maximum operating temperature for PDTA124TMB,315?

The device is rated for junction temperatures up to +150°C and ambient temperatures up to +85°C in standard SOT-883 mounting conditions. Derating applies above 25°C ambient at 1.25 mW/°C, based on its 350 mW total power dissipation limit and thermal resistance of 280 K/W.

Can PDTA124TMB,315 replace a standard 2N3904 with external resistors?

Yes-it replaces a 2N3904 plus two 47 kΩ resistors in low-speed switching applications where V_CEO ≤ 50 V and I_C ≤ 100 mA. However, it is not a drop-in replacement for high-frequency (>10 MHz) or linear amplifier use due to fixed bias and lower f_T (250 MHz vs. 300 MHz).

Is the SOT-883 package compatible with standard reflow profiles?

Yes-PDTA124TMB,315 is qualified for IPC/JEDEC J-STD-020D-compliant lead-free reflow, with peak temperature of 260°C for ≤ 30 seconds. Its 0.5 mm profile supports fine-pitch stencil printing and avoids tombstoning in automated SMT lines.

Does the integrated ESD protection cover both input and output pins?

ESD protection is implemented between base-emitter and collector-emitter terminals per IEC 61000-4-2 level 2. The base-collector junction is not separately protected; system-level ESD design must still consider transient paths involving collector connections.

PDTA124TMB,315 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: -

Package/Case:: SC-101, SOT-883

Packaging:: Bulk

Product Status:: Active

Transistor Type:: PNP - Pre-Biased

Current - Collector (Ic) (Max):: 100 mA

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

Resistor - Base (R1):: 22 kOhms

Resistor - Emitter Base (R2):: -

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 1mA, 5V

Vce Saturation (Max) @ Ib, Ic:: 150mV @ 500µA, 10mA

Current - Collector Cutoff (Max):: 1µA

Frequency - Transition:: 180 MHz

Power - Max:: 250 mW

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DFN1006B-3

PDTA124TMB,315 FAQ

1.How can I place an order for PDTA124TMB,315 through Aetrix?

Please submit a Request for Quotation (RFQ) for PDTA124TMB,315 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 PDTA124TMB,315 reliable?

The price and inventory of PDTA124TMB,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA124TMB,315 is usually 5 days.

3.What payment methods are accepted for PDTA124TMB,315?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA124TMB,315 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PDTA124TMB,315?

PDTA124TMB,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PDTA124TMB,315 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 PDTA124TMB,315?

For technical support, including PDTA124TMB,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA124TMB,315 requirements.

6.How does Aetrix verify that PDTA124TMB,315 is sourced from the original manufacturer or authorized distributors?

All PDTA124TMB,315 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 PDTA124TMB,315 meets industry standards.

7.What is the process for return or replacement of PDTA124TMB,315?

All PDTA124TMB,315 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA124TMB,315, 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 PDTA124TMB,315 part is unused and in its original packaging.

Return procedure for PDTA124TMB,315:

1.Submit a request within 90 days.

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

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