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

Nexperia USA Inc. PDTC124EQB-QZ

Name: PDTC124EQB-QZ
Brand: Nexperia USA Inc.
SKU: PDTC124EQB-QZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PDTC124EQB-QZ

Manufacturer:: Nexperia USA Inc.

Category:: Single, Pre-Biased Bipolar Transistors

Package:: 3-XDFN Exposed Pad

Datasheet:: PDTC124EQB-QZ.pdf

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

Quantity:: RFQ Add To RFQ list

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Inventory:5,000

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Product details

Overview

PDTC124EQB-Q from Nexperia is a 50 V, 100 mA NPN resistor-equipped transistor (RET) in a DFN1110D-3 (SOT8015) leadless package with side-wettable flanks. It integrates 22 kΩ input and 22 kΩ base-emitter bias resistors, delivers 60 minimum DC current gain at 5 mA collector current, and achieves ≤100 mV collector-emitter saturation voltage at 10 mA/0.5 mA drive - used for digital load switching and IC input control in space-constrained automotive modules.

For engineers reviewing the PDTC124EQB-Q datasheet, PDTC124EQB-Q pinout, PDTC124EQB-Q application, or PDTC124EQB-Q equivalent, this page provides verified pin functions, AEC-Q101 qualification status, thermal derating curves, on/off-state input voltage thresholds, and direct alternatives for digital switching designs requiring reduced BOM count and AOI-compatible packaging.

Technical Context

This RET replaces discrete BJT + two external resistors by embedding R1 (22 kΩ) and R2 (22 kΩ) monolithically, enabling single-pin base drive with fixed 1:1 bias ratio. Its 0.48 mm profile and side-wettable flanks support automated optical inspection and high-density PCB assembly.

The device operates with VI(on) = 1.7 V typical at IC = 5 mA and VI(off) = 0.8 V maximum at IC = 100 µA, ensuring robust noise immunity in 3.3 V logic interfaces. Junction temperature is rated to 150 °C, and it meets AEC-Q101 stress testing for automotive under-hood applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	50 V - Maximum safe collector-emitter voltage before breakdown; enables use in 24 V automotive supply rails with margin.
I_O	100 mA - Continuous output current capability; sufficient for driving LEDs, relays, or logic inputs without external heatsinking.
h_FE	60 min at I_C = 5 mA - Ensures reliable saturation with low base drive; eliminates need for gain-margin calculations in digital switch design.
V_CE(sat)	≤100 mV at I_C = 10 mA, I_B = 0.5 mA - Minimizes power loss (<1 mW) and self-heating during active switching.
R1 / R2	22 kΩ / 22 kΩ - Fixed internal bias network; removes two external SMT resistors and associated layout area and placement cost.
T_j max	150 °C - Qualified per AEC-Q101; supports operation in engine control units, body controllers, and ADAS sensor interfaces.
Package	DFN1110D-3 (SOT8015) - 1.1 × 1.0 × 0.48 mm, side-wettable flanks; compatible with standard reflow profiles and AOI solder-joint verification.

Pinout & Package

DFN1110D-3 (SOT8015) is an ultra-thin, leadless surface-mount package with three terminals and side-wettable flanks for automated optical inspection. Dimensions: 1.1 mm × 1.0 mm × 0.48 mm height; 0.65 mm pitch; FR4-compatible footprint per Figure 31 of the datasheet.

Pin/Terminal	Circuit Role	Design Meaning
1	Input (base)	Driven directly by MCU GPIO or logic signal; internal R1 connects here to set base current path.
2	GND (emitter)	Emitter tied to system ground; serves as common reference for both internal resistors and output current return path.
3	Output (collector)	Switches loads between V_CC and this node; supports up to 100 mA sink current with <100 mV drop.

Key Features

Feature	Design Value
Integrated bias network	Monolithic 22 kΩ R1 + 22 kΩ R2 eliminates two external resistors, reducing PCB area and pick-and-place steps.
AEC-Q101 qualification	Qualified for automotive applications including engine management, lighting, and body electronics per stress test standard.
Side-wettable flanks	Enables reliable automated optical inspection (AOI) of solder joints without x-ray, improving manufacturing yield.
Low profile (0.48 mm)	Supports ultra-thin end equipment such as smart sensors, compact ECUs, and wearable diagnostic tools.
VI(on)/VI(off) separation	≥0.9 V gap between typical on-threshold (1.7 V) and max off-threshold (0.8 V) ensures noise-immune logic-level switching.

Applications

Automotive Body Control Module

Industrial PLC Digital Output

Use Scenario: Driving LED status indicators and small solenoids in door control units and seat modules.

IC Role / Device Role / Timing Role: NPN switch sinking current from 12 V rail to ground under MCU GPIO control.

Use Value: Eliminates discrete resistor pair, reduces BOM count by two parts, and enables AOI-verified assembly for zero-defect automotive production.

Use Scenario: Isolating microcontroller outputs from 24 V industrial field devices like proximity sensors and valve drivers.

IC Role / Device Role / Timing Role: Level-shifting and current amplification stage between 3.3 V logic and higher-voltage loads.

Use Value: 50 V V_CEO rating and 150 °C T_j allow direct interface with noisy 24 V DC systems without external protection components.

Consumer Smart Home Hub

Medical Portable Diagnostic Device

Use Scenario: Controlling RGB LED backlighting and button illumination in voice-controlled hubs with tight board space.

IC Role / Device Role / Timing Role: Low-power digital switch managing multiple LED anodes via common-cathode configuration.

Use Value: 0.48 mm height and 1.1 × 1.0 mm footprint enable dense LED driver arrays while maintaining thermal safety at 100 mA peak.

Use Scenario: Enabling/disabling sensor bias rails and communication line terminations in battery-powered handheld analyzers.

IC Role / Device Role / Timing Role: Precision-controlled enable switch with defined VI(on)/VI(off) thresholds to prevent false triggering.

Use Value: 0.8 V max VI(off) ensures immunity to EMI-induced leakage in sensitive analog front-end environments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN resistor-equipped transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
PDTC114EQB-Q	10 kΩ/10 kΩ bias resistors; h_FE ≥30 at 10 mA; VI(on) = 1.8 V typical	Better suited for higher-current digital switching (e.g., 10–20 mA loads) where lower input impedance improves drive margin	Select when interfacing with weaker GPIOs or needing higher h_FE at >5 mA collector current
PDTC144EQB-Q	47 kΩ/47 kΩ bias resistors; h_FE ≥80 at 2 mA; VI(on) = 1.6 V typical	Optimized for ultra-low-power microcontrollers (e.g., 1–2 mA loads) and battery-operated devices with strict leakage budgets	Select when minimizing input current (<55 µA test condition) is critical and load current ≤2 mA

Compared with PDTC114EQB-Q and PDTC144EQB-Q, PDTC124EQB-Q strikes a balance: its 22 kΩ resistors deliver optimal VI(on)/VI(off) separation for 3.3 V logic while supporting 5 mA loads with 60 h_FE - making it ideal for mid-range digital interface tasks where neither high drive nor ultra-low power dominates.

Availability

PDTC124EQB-Q is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC digital outputs, and portable medical diagnostics requiring stable component supply, AEC-Q101 compliance, and AOI-ready packaging.

Supply support for PDTC124EQB-Q 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 essential semiconductors for automotive, industrial, and consumer markets.

PDTC124EQB-Q belongs to the AEC-Q101-qualified RET family designed specifically to replace discrete BJT-resistor combinations in digital switching applications - reducing size, cost, and assembly complexity in space- and reliability-critical systems.

FAQ

What is the maximum continuous collector current for PDTC124EQB-Q?

The maximum continuous collector current is 100 mA at Tamb ≤ 25 °C on a standard FR4 PCB with 35 µm copper. Derating applies above 25 °C per Figure 1: at 75 °C ambient, maximum allowable current drops to ~340 mW / (V_CE(sat) ≈ 0.1 V) ≈ 3.4 A theoretical limit, but practical safe operating current is 60–70 mA due to thermal resistance (R_th(j-a) = 368 K/W).

Does PDTC124EQB-Q require external base resistors?

No. PDTC124EQB-Q integrates 22 kΩ R1 (base-input) and 22 kΩ R2 (base-emitter) resistors internally. Only the input (pin 1), GND (pin 2), and output (pin 3) connections are needed - eliminating external bias components and associated layout area and placement cost.

Is PDTC124EQB-Q suitable for 5 V logic interfacing?

Yes. With VI(on) = 1.7 V typical and VI(off) = 0.8 V maximum, it reliably switches on with standard 5 V TTL/CMOS outputs and remains off under noise transients below 0.8 V. Its 50 V V_CEO rating also allows safe operation with 5 V supplies and inductive kickback suppression.

How does the DFN1110D-3 package support automated optical inspection?

The DFN1110D-3 package features side-wettable flanks - exposed copper surfaces along the package edges - which reflect light uniformly during AOI. This enables high-confidence solder-joint inspection without x-ray, reducing final-test escapes and supporting zero-defect goals in automotive and medical manufacturing.

PDTC124EQB-QZ Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: 3-XDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN - Pre-Biased

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

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

Resistor - Base (R1):: 22 kOhms

Resistor - Emitter Base (R2):: 22 kOhms

DC Current Gain (hFE) (Min) @ Ic, Vce:: 60 @ 5mA, 5V

Vce Saturation (Max) @ Ib, Ic:: 100mV @ 500µA, 10mA

Current - Collector Cutoff (Max):: 100nA

Frequency - Transition:: 230 MHz

Power - Max:: 340 mW

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: DFN1110D-3

PDTC124EQB-QZ FAQ

1.How can I place an order for PDTC124EQB-QZ through Aetrix?

Please submit a Request for Quotation (RFQ) for PDTC124EQB-QZ 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 PDTC124EQB-QZ reliable?

The price and inventory of PDTC124EQB-QZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC124EQB-QZ is usually 5 days.

3.What payment methods are accepted for PDTC124EQB-QZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC124EQB-QZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PDTC124EQB-QZ?

PDTC124EQB-QZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PDTC124EQB-QZ 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 PDTC124EQB-QZ?

For technical support, including PDTC124EQB-QZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC124EQB-QZ requirements.

6.How does Aetrix verify that PDTC124EQB-QZ is sourced from the original manufacturer or authorized distributors?

All PDTC124EQB-QZ 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 PDTC124EQB-QZ meets industry standards.

7.What is the process for return or replacement of PDTC124EQB-QZ?

All PDTC124EQB-QZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTC124EQB-QZ, 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 PDTC124EQB-QZ part is unused and in its original packaging.

Return procedure for PDTC124EQB-QZ:

1.Submit a request within 90 days.

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

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