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Nexperia USA Inc. PDTD123EQAZ
- Part No.:
- PDTD123EQAZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- -
- Datasheet:
-
PDTD123EQAZ.pdf
- Description:
- TRANS PREBIAS
- Quantity:
- Payment:
- Shipping:
Inventory:25,000
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Product details
Overview
PDTD123EQAZ from Nexperia is an AEC-Q101-qualified NPN resistor-equipped transistor (RET) in a DFN1010D-3 (SOT1215) package, integrating 2.2 kΩ input and feedback bias resistors. It delivers 500 mA output current at up to 50 V VCEO, with 100 mV VCE(sat) at IC = 50 mA / IB = 2.5 mA, and supports digital switching in automotive body control modules.
For engineers reviewing the PDTD123EQAZ datasheet, PDTD123EQAZ pinout, PDTD123EQAZ application, or PDTD123EQAZ equivalent, key selection criteria include its built-in 2.2 kΩ R1/R2 resistor ratio, ±10% tolerance, ultra-thin 0.37 mm profile, AOI-compatible side pads, and qualification for automotive-grade reliability per AEC-Q101.
Technical Context
This RET integrates a monolithic NPN transistor with two precision laser-trimmed silicon resistors-R1 connected between base and input, R2 between base and emitter-to enable single-pin digital drive without external bias components. Its internal topology eliminates base resistor calculation and layout dependency.
The device operates as a saturated switch with guaranteed hFE ≥ 40 at IC = 50 mA and VCE = 5 V, and features low thermal resistance (Rth(j-sp) = 40 K/W) due to its exposed collector pad and thermally enhanced DFN package, supporting high-density PCB designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum allowable collector-emitter voltage before breakdown; enables use in 24 V automotive and industrial supply rails. |
| IO | 500 mA - Continuous DC output current capability; sufficient for driving relays, LEDs, and logic-level loads directly. |
| R1 / R2 | 2.2 kΩ / 2.2 kΩ - Matched on-die bias resistors simplify digital interface design and eliminate external component count. |
| VCE(sat) | 100 mV @ IC = 50 mA - Low saturation voltage minimizes power loss and self-heating during switching. |
| hFE | ≥ 40 @ IC = 50 mA - Guaranteed DC current gain ensures reliable turn-on margin across temperature and process variation. |
| Package | DFN1010D-3 (SOT1215) - 1.1 × 1.0 × 0.37 mm leadless package with solderable side pads for AOI inspection and high-density placement. |
| AEC-Q101 | Qualified - Meets stress test requirements for discrete semiconductors in automotive applications, including temperature cycling and HTRB. |
Pinout & Package
DFN1010D-3 (SOT1215) is a 3-terminal, leadless, thermally enhanced ultra-thin surface-mount package with visible and solderable side pads. Body dimensions: 1.1 mm × 1.0 mm × 0.37 mm; exposed collector pad improves thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Driven directly by MCU GPIO or logic signal; internal R1 connects this pin to transistor base. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; serves as reference for input and output paths. |
| 3 & 4 | Output (collector) | Parallel-connected collector terminals provide low-inductance, high-current path to load; electrically identical and must be soldered together. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Matched 2.2 kΩ R1 and R2 resistors reduce BOM count by one resistor pair and eliminate layout sensitivity. |
| AEC-Q101 qualification | Validated for automotive under-hood and body electronics, including temperature cycling, HTRB, and ESD robustness. |
| Ultra-low profile | 0.37 mm height enables use in space-constrained modules such as smart sensors and compact ECUs. |
| AOI-compatible side pads | Visible copper sidewalls allow automated optical inspection of solder joints, improving manufacturing yield and traceability. |
| Thermal enhancement | Exposed collector pad and low Rth(j-sp) = 40 K/W support sustained 500 mA operation on standard FR4 PCBs. |
Applications
| Automotive Body Control Module | Industrial PLC Output Stage |
|---|---|
Use Scenario: Driving door lock actuators and interior lighting in 12 V/24 V vehicle systems. IC Role / Device Role / Timing Role: Digital switch controlling inductive and resistive loads via MCU GPIO without external base resistors. Use Value: Eliminates two external resistors per channel, reduces PCB area by >0.5 mm², and ensures consistent turn-on behavior across temperature. |
Use Scenario: Solid-state replacement for electromechanical relays in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: High-reliability load switch interfacing with 3.3 V/5 V microcontroller outputs to drive 24 V solenoids and indicators. Use Value: Enables 100 k-cycle solid-state switching with no contact wear, while maintaining <100 mV dropout at full rated current. |
| Consumer Appliance Motor Interface | IoT Sensor Node Power Management |
Use Scenario: Controlling small DC brush motors in smart home appliances (e.g., HVAC dampers, coffee grinders). IC Role / Device Role / Timing Role: Low-voltage, logic-level controlled switch enabling direct MCU drive with minimal external components. Use Value: Reduces bill-of-materials cost by $0.015–$0.025 per channel and simplifies firmware timing by removing base resistor charging delays. |
Use Scenario: Enabling/disabling peripheral sensors (e.g., environmental, motion) in battery-powered edge nodes. IC Role / Device Role / Timing Role: Low-quiescent-load switch isolating sensor power domains to extend battery life in sleep modes. Use Value: Achieves <100 nA leakage (ICEO) and supports fast turn-on (<1 µs propagation) for responsive wake-up events. |
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 |
|---|---|---|---|
| PDTB123EQAZ | PNP complement with identical R1/R2 values and package; VECO = 50 V, IO = −500 mA. | Used where high-side switching or inverted logic control is required (e.g., active-high enable lines). | Select when sourcing current from supply rail rather than sinking to ground. |
| BC807-40W | Standard BJT without integrated resistors; requires external base resistor; SOT-323 package (1.7 × 1.3 × 0.95 mm). | Suitable for analog amplification or adjustable gain stages where hFE variability must be managed externally. | Choose only if biasing flexibility or higher VCEO (45 V) with different thermal profile is needed. |
Compared with PDTB123EQAZ, PDTD123EQAZ provides complementary NPN functionality with identical footprint and biasing, while BC807-40W offers greater design flexibility at the cost of added components and larger board area-making PDTD123EQAZ optimal for high-volume, space-constrained digital switching.
Availability
PDTD123EQAZ is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, and IoT sensor node power management requiring stable component supply and AEC-Q101 compliance.
Supply support for PDTD123EQAZ 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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.
PDTD123EQAZ belongs to Nexperia's resistor-equipped transistor (RET) family, engineered to replace discrete BJT + resistor combinations in digital switching applications-reducing size, cost, and assembly complexity.
FAQ
What is the maximum continuous output current for PDTD123EQAZ?
The PDTD123EQAZ is rated for 500 mA continuous DC output current (IO) under standard PCB mounting conditions. Derating applies above 25 °C ambient; for example, at 85 °C ambient on a 4-layer FR4 board, maximum sustainable current drops to ~380 mA based on thermal resistance and power dissipation limits.
Can PDTD123EQAZ be used as a direct replacement for BC817-40 in digital switching circuits?
Yes-PDTD123EQAZ can replace BC817-40 in most digital switching applications, offering identical hFE minimum (40), same VCEO (50 V), and superior integration: built-in 2.2 kΩ bias resistors eliminate two external components and improve consistency. However, pinout differs (SOT1215 vs. SOT-23), so PCB layout revision is required.
Is the collector terminal accessible for thermal relief on the PCB?
Yes-the DFN1010D-3 package features an exposed collector pad (pins 3 and 4) that must be soldered to a dedicated copper pour on the PCB. This pad provides the primary thermal path; recommended land pattern includes ≥10 mm² copper area connected via ≥4 thermal vias to inner ground planes for optimal Rth(j-a) performance.
Does PDTD123EQAZ support 3.3 V logic-level drive from modern microcontrollers?
Yes-its VI(on) is specified at 1.0 V (min) and 1.5 V (typ) at IC = 20 mA, ensuring reliable turn-on with 3.3 V GPIOs even under worst-case temperature and process variation. The integrated R1/R2 network guarantees consistent base current without external resistor tolerance stacking.
PDTD123EQAZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- -
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Resistor - Base (R1):
- -
- Resistor - Emitter Base (R2):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- -
- Vce Saturation (Max) @ Ib, Ic:
- -
- Current - Collector Cutoff (Max):
- -
- Frequency - Transition:
- -
- Power - Max:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
PDTD123EQAZ FAQ
1.How can I place an order for PDTD123EQAZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTD123EQAZ 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 PDTD123EQAZ reliable?
The price and inventory of PDTD123EQAZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTD123EQAZ is usually 5 days.
3.What payment methods are accepted for PDTD123EQAZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTD123EQAZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTD123EQAZ?
PDTD123EQAZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTD123EQAZ 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 PDTD123EQAZ?
For technical support, including PDTD123EQAZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTD123EQAZ requirements.
6.How does Aetrix verify that PDTD123EQAZ is sourced from the original manufacturer or authorized distributors?
All PDTD123EQAZ 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 PDTD123EQAZ meets industry standards.
7.What is the process for return or replacement of PDTD123EQAZ?
All PDTD123EQAZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTD123EQAZ, 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 PDTD123EQAZ part is unused and in its original packaging.
Return procedure for PDTD123EQAZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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