Nexperia USA Inc. PDTC124XQB-QZ
- Part No.:
- PDTC124XQB-QZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
PDTC124XQB-QZ.pdf
- Description:
- TRANS PREBIAS NPN 50V 0.1A 3DFN
- Quantity:
- Payment:

- Shipping:

Inventory:5,000
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Product details
Overview
PDTC124XQB-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 bias resistor (R1) and 47 kΩ feedback resistor (R2), enabling direct digital logic interfacing without external base resistors. Designed for automotive-grade switching in space-constrained PCBs, it delivers 100 mV VCE(sat) at IC = 10 mA / IB = 0.5 mA.
For engineers reviewing the PDTC124XQB-Q datasheet, PDTC124XQB-Q pinout, PDTC124XQB-Q application, or PDTC124XQB-Q equivalent, this device serves as a drop-in replacement for discrete BJT + resistor networks in low-power digital load switching, IO conditioning, and automotive body control modules where AEC-Q101 qualification, AOI compatibility, and ultra-thin 0.48 mm profile are critical.
Technical Context
This RET implements an integrated NPN silicon transistor with two monolithic thin-film resistors: R1 (22 kΩ ±30%) connected between base and input, and R2 (47 kΩ ±30%) from base to emitter. The internal topology eliminates external bias components while maintaining predictable DC current gain (hFE = 80 min at VCE = 5 V, IC = 5 mA).
Its DFN1110D-3 package features side-wettable flanks for automated optical inspection of solder joints and supports reflow profiles compliant with JEDEC J-STD-020. Thermal resistance is 298 K/W (junction-to-ambient, 70 µm copper PCB), enabling stable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; supports 24 V automotive rail switching with margin. |
| IO | 100 mA - Continuous output current capability; sufficient for driving LEDs, small relays, or logic inputs. |
| R1 | 22 kΩ - Input bias resistor value; sets base current for logic-level drive (e.g., 3.3 V/5 V MCU GPIO). |
| R2/R1 | 2.13 - Feedback resistor ratio; stabilizes operating point against β variation and temperature drift. |
| VCE(sat) | 100 mV - Low saturation voltage at IC = 10 mA / IB = 0.5 mA; minimizes power loss in on-state. |
| hFE | 80 - Minimum DC current gain at VCE = 5 V, IC = 5 mA; ensures reliable switching with defined drive. |
| fT | 230 MHz - Transition frequency of internal transistor; supports fast digital switching up to ~10 MHz. |
Pinout & Package
DFN1110D-3 (SOT8015) is a 3-terminal, leadless, ultra-thin surface-mount package measuring 1.1 × 1.0 × 0.48 mm with side-wettable flanks for AOI-compatible solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I (input) | Base node connected internally to R1; accepts logic-level voltage (VI(on) = 1.1–2.0 V typical) to enable conduction. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; serves as common return path for load current and R2. |
| 3 | O (output) | Collector terminal delivering switched load current; rated for 50 V and 100 mA continuous operation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Monolithic 22 kΩ (R1) and 47 kΩ (R2) resistors eliminate need for two external components per switch node. |
| AEC-Q101 qualified | Stress-tested per Automotive Electronics Council standard; suitable for under-hood and body control applications. |
| Side-wettable flanks | Package geometry enables automated optical inspection of solder fillets-critical for zero-defect automotive manufacturing. |
| Ultra-low profile | 0.48 mm max height allows use in ultra-thin modules (e.g., smart sensors, compact ECUs) where Z-axis space is constrained. |
| Low VCE(sat) | 100 mV saturation voltage reduces conduction losses by >50% vs. BC847-Q series at same current, improving thermal efficiency. |
Applications
| Automotive Body Control | Industrial IO Expansion |
|---|---|
Use Scenario: Driving LED status indicators and small solenoids in door modules and lighting controllers. IC Role / Device Role / Timing Role: NPN switch controlling 12–24 V loads with logic-level enable from microcontroller GPIO. Use Value: Eliminates discrete resistor placement and reduces BOM count by 2 parts per channel while meeting AEC-Q101 requirements. |
Use Scenario: Level-shifting and buffering digital signals between PLC I/O cards and field sensors. IC Role / Device Role / Timing Role: Digital interface buffer isolating 3.3 V logic from 24 V industrial bus lines. Use Value: Built-in resistors prevent floating base conditions and ensure clean turn-on/turn-off timing without external pull-downs. |
| Consumer Appliance Control | Medical Diagnostic Equipment |
Use Scenario: Controlling buzzer drivers, display backlights, and relay coils in smart home appliances. IC Role / Device Role / Timing Role: Low-power load switch activated by MCU outputs during sleep/wake transitions. Use Value: 100 nA ICEO leakage ensures minimal standby current draw, extending battery life in portable units. |
Use Scenario: Isolating patient-connected sensor circuits from main controller board in portable diagnostics. IC Role / Device Role / Timing Role: Signal gating element ensuring safe signal path separation during fault conditions. Use Value: 150 °C max junction temperature rating supports operation in thermally dense medical enclosures without derating. |
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 |
|---|---|---|---|
| PDTC143XQB-Q | R1 = 4.7 kΩ, R2 = 10 kΩ; lower input resistance enables higher base current and faster switching at 3.3 V logic. | Better suited for high-speed digital interfaces (e.g., UART line drivers) due to lower VI(on) threshold (1.5 V typ). | Select when drive voltage is ≤3.3 V and switching speed >1 MHz is required. |
| BC847B-Q | Discrete BJT without integrated resistors; requires external base resistor network (typically 10 kΩ + 47 kΩ). | Offers higher hFE (200 min) but increases PCB area and assembly cost; not AEC-Q101 qualified. | Choose only if design requires adjustable bias or higher gain, and automotive qualification is not mandatory. |
Compared with PDTC143XQB-Q, the PDTC124XQB-Q provides higher input impedance for reduced drive current consumption, while BC847B-Q trades integration for flexibility and higher gain-making PDTC124XQB-Q optimal for space- and reliability-critical automotive digital switching where fixed bias suffices.
Availability
PDTC124XQB-Q is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O expansion, and consumer appliance power management requiring stable component supply, AEC-Q101 compliance, and ultra-compact packaging.
Supply support for PDTC124XQB-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 discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
PDTC124XQB-Q belongs to the PDTC-Q series of resistor-equipped transistors engineered specifically for automotive and industrial digital switching applications where miniaturization, AOI compatibility, and stress-tested reliability are mandatory.
FAQ
What is the maximum ambient temperature for continuous operation?
PDTC124XQB-Q supports continuous operation from −55 °C to +150 °C ambient temperature. At 100 mA load current, thermal derating begins above 75 °C on a standard FR4 PCB with 70 µm copper; full 100 mA is guaranteed up to 85 °C with proper layout and airflow.
Can PDTC124XQB-Q replace BC847B in existing designs?
Yes-with minor layout changes. Replace the BC847B and its two external base resistors with PDTC124XQB-Q using the same collector/emitter connections; tie the input pin (Pin 1) to the original base drive signal. No resistor removal or value recalculation is needed-the internal 22 kΩ/47 kΩ network replicates typical BC847B biasing.
Is the DFN1110D-3 package compatible with standard reflow profiles?
Yes. The SOT8015 footprint complies with JEDEC J-STD-020 moisture sensitivity level 1 and supports peak reflow temperatures up to 260 °C. Recommended stencil thickness is 0.1 mm, and solder paste volume is optimized for side-wettable flank wetting-verified in Nexperia's reflow soldering guidelines (Fig. 37).
What is the off-state input voltage threshold (VI(off))?
VI(off) is specified as 0.5 V maximum at VCE = 5 V and IC = 100 µA. This means the device remains fully off when input voltage stays below 0.5 V, providing robust noise immunity against sub-1 V digital crosstalk or leakage in low-voltage systems.
PDTC124XQB-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):
- 47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 80 @ 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
PDTC124XQB-QZ FAQ
1.How can I place an order for PDTC124XQB-QZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC124XQB-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 PDTC124XQB-QZ reliable?
The price and inventory of PDTC124XQB-QZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC124XQB-QZ is usually 5 days.
3.What payment methods are accepted for PDTC124XQB-QZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC124XQB-QZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC124XQB-QZ?
PDTC124XQB-QZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC124XQB-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 PDTC124XQB-QZ?
For technical support, including PDTC124XQB-QZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC124XQB-QZ requirements.
6.How does Aetrix verify that PDTC124XQB-QZ is sourced from the original manufacturer or authorized distributors?
All PDTC124XQB-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 PDTC124XQB-QZ meets industry standards.
7.What is the process for return or replacement of PDTC124XQB-QZ?
All PDTC124XQB-QZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTC124XQB-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 PDTC124XQB-QZ part is unused and in its original packaging.
Return procedure for PDTC124XQB-QZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC124XQB-QZ Tags

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MUN5211T1G
onsemi

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DTC043ZEBTL
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DDTD113ZC-7-F
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DRDNB16W-7
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PDTC114ET,215
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MMUN2211LT1G
onsemi

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