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Nexperia USA Inc. PDTD143EUF
- Part No.:
- PDTD143EUF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PDTD143EUF.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:8,229
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Product details
Overview
PDTD143EUF from Nexperia is a 500 mA, 50 V NPN resistor-equipped transistor (RET) in SOT323 (SC-70) package, integrating 4.7 kΩ input bias resistor (R1) and 4.7 kΩ base-emitter resistor (R2) with ±10% ratio tolerance. It functions as a single-chip digital switch for IC-driven loads, delivers 60 minimum DC current gain at 50 mA, supports 175 °C junction operation, and is AEC-Q101 qualified for automotive control modules.
For engineers reviewing the PDTD143EUF datasheet, PDTD143EUF pinout, PDTD143EUF application, or PDTD143EUF equivalent, this page provides verified pin configuration, thermal derating curves, VI(on)/VI(off) thresholds at 25 °C and 100 °C, R1/R2 resistor values, and direct alternatives to BC817 series transistors in space-constrained digital logic interfaces.
Technical Context
This RET integrates a monolithic NPN transistor with two precision thin-film resistors on a single die: R1 connects the input terminal to the base, and R2 shunts base to emitter. The 1:1 R2/R1 ratio (0.9–1.1 typ.) enables predictable saturation behavior under varying temperature and supply conditions.
Designed for direct interface with CMOS/TTL outputs, it eliminates external bias components while maintaining stable switching performance across −40 °C to +175 °C ambient. Its 7 pF collector capacitance and 225 MHz transition frequency support fast digital switching up to ~10 MHz edge rates in low-power load control.
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 rail switching. |
| IO | 500 mA - Continuous output current capability; sufficient for driving relays, LEDs, small solenoids, or logic-level MOSFET gates. |
| R1 / R2 | 4.7 kΩ / 4.7 kΩ - Matched internal bias resistors simplify PCB layout and ensure consistent turn-on/turn-off thresholds without external components. |
| hFE | 60 min @ IC = 50 mA - Minimum DC current gain guarantees reliable saturation with ≤0.85 mA base drive, reducing MCU GPIO current burden. |
| VCE(sat) | 100 mV max @ IC = 50 mA, IB = 2.5 mA - Ultra-low saturation voltage minimizes conduction loss and self-heating in high-duty-cycle applications. |
| Tj max | 175 °C - Rated junction temperature allows operation in engine bay, power converters, and sealed enclosures without forced cooling. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package: 1.35 mm × 1.15 mm × 0.45 mm body, 3-terminal leadframe, tin-plated terminations compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base via R1) | Accepts logic-level drive; internal 4.7 kΩ resistor limits base current and prevents overdrive damage. |
| 2 | GND (emitter) | Common reference node; ties emitter directly to ground plane for stable switching and minimal noise coupling. |
| 3 | Output (collector) | Switches high-side or low-side loads up to 500 mA; requires external pull-up/pull-down depending on topology. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, HAST, and ESD testing per JESD47. |
| ±10% R2/R1 tolerance | Ensures consistent VI(on) and VI(off) thresholds across production lots and temperature, critical for deterministic logic interfacing. |
| 175 °C junction rating | Enables deployment in under-hood ECUs, motor controllers, and industrial drives without thermal derating penalties. |
| 300 mW Ptot (FR4, 1-layer) | Supports continuous 500 mA switching at ambient ≤85 °C with standard PCB copper; derates linearly above 25 °C. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Output |
|---|---|
|
Use Scenario: Driving door lock actuators and interior lighting from 3.3 V/5 V microcontroller GPIOs in compact BCM assemblies. IC Role / Device Role: Single-chip load switch replacing discrete BJT + two resistors; reduces BOM count and layout area by >60%. Use Value: Eliminates external bias network while maintaining AEC-Q101 compliance and 175 °C operation for under-dash mounting. |
Use Scenario: Isolating field-side 24 V DC loads (valves, indicators) from 3.3 V FPGA I/O banks in modular PLC backplanes. IC Role / Device Role: Level-shifting digital output buffer with built-in current limiting and thermal robustness. Use Value: Reduces component footprint by 2.2 mm² vs. discrete solution; supports hot-swap insertion without latch-up risk. |
| Consumer Appliance Motor Driver | Medical Diagnostic Equipment Fan Control |
|
Use Scenario: Controlling small DC brush motors in smart washing machines using PWM signals from ARM Cortex-M0+ MCUs. IC Role / Device Role: Low-side switch with integrated base biasing; handles 300 mA stall current and 10 kHz PWM. Use Value: Achieves <100 mV VCE(sat) at full load, cutting conduction loss by 4× vs. BC817-40, improving thermal margin in sealed enclosures. |
Use Scenario: Regulating cooling fans in portable ultrasound units where EMI, size, and long-term reliability are critical. IC Role / Device Role: Noise-immune digital switch interfacing with isolated ADC-triggered control logic. Use Value: 7 pF Cc and 225 MHz fT suppress switching transients; AEC-Q101 qualification ensures 10-year field life in Class II medical devices. |
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 | Discrete NPN BJT requiring two external 4.7 kΩ resistors; no integrated R2, lower hFE consistency, not AEC-Q101 qualified. | Requires additional PCB area and assembly steps; unsuitable for automotive or high-reliability industrial use. | Select when cost-per-unit is prioritized over board space and qualification, and thermal environment stays below 125 °C. |
| PDTD143XU | Same SOT323 package but with R1 = 4.7 kΩ, R2 = 10 kΩ (R2/R1 ≈ 2.13); higher VI(off), lower hFE (70 typ.), tighter VI(on) range. | Better noise immunity in noisy environments due to higher off-state threshold; slightly slower turn-off. | Select when interfacing with open-drain drivers or systems requiring higher noise margin against false triggering. |
Compared with BC817-40, PDTD143EUF saves two passives and qualifies for automotive use; compared with PDTD143XU, it offers matched R1/R2 for symmetric switching thresholds and lower VI(off), making it preferable for TTL/CMOS-compatible logic interfaces.
Availability
PDTD143EUF is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC digital outputs, and consumer appliance motor drivers requiring stable component supply, AEC-Q101 compliance, and high-temperature operation.
Supply support for PDTD143EUF 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.
PDTD1xxxU series targets space-constrained digital switching applications where integration, qualification, and thermal resilience are critical-designed specifically to replace legacy BJT + resistor combinations in next-generation ECUs and smart sensors.
FAQ
What is the maximum continuous collector current for PDTD143EUF?
The absolute maximum continuous collector current is 500 mA, specified under conditions of Tamb ≤ 25 °C on FR4 PCB with single-sided copper. At 100 °C ambient, derating reduces usable current to approximately 320 mA based on 300 mW total power dissipation and 100 mV VCE(sat).
Does PDTD143EUF require external bias resistors?
No. PDTD143EUF integrates both R1 (4.7 kΩ) and R2 (4.7 kΩ) internally, eliminating the need for external base bias components. This simplifies design, improves layout density, and ensures consistent switching behavior across temperature and process variation.
Is PDTD143EUF suitable for 3.3 V logic-level drive?
Yes. With VI(on) = 1.0–1.6 V (typ.) and VI(off) = 0.6–1.5 V (typ.) at 25 °C, PDTD143EUF reliably switches on with standard 3.3 V CMOS outputs and remains off during logic-low states, even with noise margins up to ±0.4 V.
How does PDTD143EUF differ from PDTD143EU?
PDTD143EUF is the tape-and-reel packaging variant of PDTD143EU, sharing identical electrical characteristics, thermal ratings, and pinout. The "F" suffix denotes full reel packaging (3,000 pcs/reel) optimized for automated SMT assembly, whereas "EU" may indicate cut-tape or different reel quantity.
PDTD143EUF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- 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:
- 225 MHz
- Power - Max:
- 300 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PDTD143EUF FAQ
1.How can I place an order for PDTD143EUF through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTD143EUF 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 PDTD143EUF reliable?
The price and inventory of PDTD143EUF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTD143EUF is usually 5 days.
3.What payment methods are accepted for PDTD143EUF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTD143EUF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTD143EUF?
PDTD143EUF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTD143EUF 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 PDTD143EUF?
For technical support, including PDTD143EUF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTD143EUF requirements.
6.How does Aetrix verify that PDTD143EUF is sourced from the original manufacturer or authorized distributors?
All PDTD143EUF 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 PDTD143EUF meets industry standards.
7.What is the process for return or replacement of PDTD143EUF?
All PDTD143EUF units undergo pre-shipment inspection (PSI). If there is an issue with PDTD143EUF, 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 PDTD143EUF part is unused and in its original packaging.
Return procedure for PDTD143EUF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTD143EUF Tags
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MUN5211T1G
onsemi
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DTC043ZEBTL
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DTC114EKAT146
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DRDNB16W-7
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PDTC114ET,215
Nexperia USA Inc.
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PDTC143ZT,215
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PDTC143ET,215
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MMUN2211LT1G
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