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Nexperia USA Inc. PDTD143EQAZ
- Part No.:
- PDTD143EQAZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
PDTD143EQAZ.pdf
- Description:
- TRANS PREBIAS NPN 50V 0.5A 3DFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,927
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Product details
Overview
PDTD143EQAZ from Nexperia is a 50 V, 500 mA NPN resistor-equipped transistor (RET) with integrated 4.7 kΩ input and feedback bias resistors in a DFN1010D-3 (SOT1215) ultra-small surface-mount package. It functions as a digital switch for IC input control and load switching in space-constrained automotive and industrial modules, delivering 60× DC current gain at 50 mA collector current and 100 mV saturation voltage at 50 mA/2.5 mA drive.
For engineers reviewing the PDTD143EQAZ datasheet, PDTD143EQAZ pinout, PDTD143EQAZ application, or PDTD143EQAZ equivalent, this device serves as an AEC-Q101-qualified, leadless alternative to BC817 series transistors-optimized for automatic optical inspection (AOI), reduced component count, and simplified PCB layout in high-density digital interface circuits.
Technical Context
This RET integrates two precision-matched 4.7 kΩ resistors (R1 = R2 = 4.7 kΩ ±30 %, ratio tolerance ±10 %) to configure base biasing without external components. Its internal NPN transistor exhibits fT = 210 MHz at 50 mA and supports switching up to 50 V VCEO with 0.9 µA ICEO leakage at 50 V.
The DFN1010D-3 package features visible and solderable side pads, 0.37 mm profile, and thermal resistance of 133 K/W (4-layer FR4, 1 cm² collector pad), enabling reliable operation up to 150 °C junction temperature under continuous 500 mA output current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum safe collector-emitter voltage before breakdown; enables use in 24 V automotive and industrial power rails. |
| IO | 500 mA - Continuous output current rating; supports driving medium-power loads like relays, LEDs, or logic inputs. |
| hFE | 60 - DC current gain at VCE = 5 V, IC = 50 mA; ensures robust saturation with low base drive current. |
| VCE(sat) | 100 mV - Collector-emitter voltage at IC = 50 mA / IB = 2.5 mA; minimizes conduction loss and self-heating. |
| R1 / R2 | 4.7 kΩ / 4.7 kΩ - Matched on-die bias resistors; eliminates external components and improves board-level reliability. |
| VI(on) | 1.0–2.2 V - On-state input voltage range at IC = 20 mA; compatible with 1.8 V, 3.3 V, and 5 V logic families. |
| AEC-Q101 | Qualified - Certified for automotive-grade stress testing including temperature cycling, HTRB, and ESD; suitable for under-hood ECUs. |
Pinout & Package
DFN1010D-3 (SOT1215) is a 3-terminal, leadless, ultra-thin plastic package measuring 1.1 × 1.0 × 0.37 mm with visible side pads for AOI-compatible reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connects to logic signal source; internal R1 routes current into base node. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; provides return path for load current. |
| 3 & 4 | Output (collector) | Dual-collector terminals electrically connected; share current path to load and improve thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Matched 4.7 kΩ R1/R2 resistors reduce bill-of-materials count and eliminate layout sensitivity to stray capacitance. |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| Ultra-low profile | 0.37 mm height enables use in slim handheld devices and stacked PCB assemblies where Z-axis clearance is critical. |
| AOI-compatible packaging | Visible side pads allow automated optical inspection of solder joints-reducing post-reflow defect escapes. |
| Thermal performance | 133 K/W Rth(j-a) on 4-layer FR4 with 1 cm² collector pad supports 500 mA continuous operation without heatsinking. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Switching 12 V indicator LEDs and solenoid drivers in door module PCBs. IC Role / Device Role / Timing Role: NPN digital switch controlling current flow from battery rail to load. Use Value: Eliminates discrete resistor placement, reduces footprint by 40 % vs. BC817 + two 4.7 kΩ resistors, and passes AEC-Q101 vibration testing. |
Use Scenario: Level-shifting and isolating 24 V field signals into 3.3 V microcontroller GPIOs. IC Role / Device Role / Timing Role: Input buffer and current-limiting interface between industrial sensors and MCU inputs. Use Value: VI(on) = 1.7 V ensures clean turn-on with 24 V optocoupler outputs; 500 mA rating handles transient surges during field wiring faults. |
| Consumer IoT Sensor Hub | Medical Wearable Power Sequencing |
Use Scenario: Enabling/disabling BLE radio and environmental sensor power rails in compact wearables. IC Role / Device Role / Timing Role: Low-side load switch managing power domain sequencing. Use Value: 0.37 mm height fits within 1.2 mm total stack-up; 100 mV VCE(sat) limits voltage drop across 3.3 V supply paths. |
Use Scenario: Controlling power delivery to analog front-end ICs in FDA-cleared patient monitors. IC Role / Device Role / Timing Role: Precision-controlled enable switch for regulated subsystems. Use Value: ±10 % R2/R1 ratio tolerance ensures consistent turn-on thresholds across production lots; qualified for Class II medical device 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 |
|---|---|---|---|
| BC817-40,215 | Discrete BJT requiring two external 4.7 kΩ resistors; no integrated bias network; TO-236 (SOT23) package (1.3 mm height). | Larger footprint and higher assembly cost; lacks AEC-Q101 qualification and AOI compatibility. | Select when legacy design reuse or manual prototyping is required; avoid for new automotive or high-density layouts. |
| PDTB143EQAZ | PNP complement with identical 4.7 kΩ resistors, same DFN1010D-3 package, and matching thermal specs. | Used for high-side switching or complementary push-pull stages-not direct functional replacement. | Choose only for complementary circuit topologies; not a drop-in substitute for NPN switching function. |
Compared with BC817-40,215, PDTD143EQAZ reduces component count and improves reliability via monolithic integration; versus PDTB143EQAZ, it provides NPN polarity essential for low-side load control-making it irreplaceable in grounded-load configurations.
Availability
PDTD143EQAZ is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC digital inputs, and consumer IoT sensor hubs requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for PDTD143EQAZ 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 high-performance discrete, logic, and power MOSFET semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.
This part belongs to Nexperia's resistor-equipped transistor (RET) family-designed specifically to replace discrete BJT + resistor combinations in digital switching applications while meeting AEC-Q101 and AOI requirements.
FAQ
What is the maximum allowable input voltage (VI) for PDTD143EQAZ?
The absolute maximum input voltage is +30 V, as specified in Table 6 of the datasheet. This rating applies with emitter grounded and ensures safe operation during transient overvoltage events such as load dump or ESD coupling. Continuous operation above 5 V is not recommended unless verified by system-level testing.
Does PDTD143EQAZ support 1.8 V logic-level drive?
Yes. VI(on) is guaranteed between 1.0 V and 2.2 V at IC = 20 mA, confirming reliable turn-on with 1.8 V CMOS outputs. The device achieves full saturation (VCEsat ≤ 100 mV) with IB ≥ 2.5 mA, which corresponds to ~0.5 mA input current through R1 at 1.8 V drive.
How does the dual-collector configuration (pins 3 and 4) affect PCB layout?
Pins 3 and 4 are internally shorted collector terminals. Layout must connect both to the same copper pour or net-ideally using symmetric traces-to balance current sharing and minimize thermal gradient. The shared collector pad improves heat spreading and allows higher sustained current than single-pin equivalents.
Is PDTD143EQAZ pin-compatible with other parts in the PDTD1xxEQA series?
No. All variants (PDTD113/123/143/114EQA) share identical pinout and package (DFN1010D-3), but differ in internal resistor values: PDTD143EQAZ uses 4.7 kΩ resistors, while PDTD113EQAZ uses 1 kΩ and PDTD114EQAZ uses 10 kΩ. Electrical behavior-not physical layout-dictates interchangeability.
PDTD143EQAZ 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):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 4.7 kOhms
- Resistor - Emitter Base (R2):
- 4.7 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 60 @ 50mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 2.5mA, 50mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- 210 MHz
- Power - Max:
- 325 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1010D-3
PDTD143EQAZ FAQ
1.How can I place an order for PDTD143EQAZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTD143EQAZ 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 PDTD143EQAZ reliable?
The price and inventory of PDTD143EQAZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTD143EQAZ is usually 5 days.
3.What payment methods are accepted for PDTD143EQAZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTD143EQAZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTD143EQAZ?
PDTD143EQAZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTD143EQAZ 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 PDTD143EQAZ?
For technical support, including PDTD143EQAZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTD143EQAZ requirements.
6.How does Aetrix verify that PDTD143EQAZ is sourced from the original manufacturer or authorized distributors?
All PDTD143EQAZ 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 PDTD143EQAZ meets industry standards.
7.What is the process for return or replacement of PDTD143EQAZ?
All PDTD143EQAZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTD143EQAZ, 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 PDTD143EQAZ part is unused and in its original packaging.
Return procedure for PDTD143EQAZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTD143EQAZ Tags
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MUN5211T1G
onsemi
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DTC114EKAT146
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DRDNB16W-7
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PDTC143ZT,215
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PDTC143XT,215
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MMUN2211LT1G
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