My Inquiry
My Account
Nexperia USA Inc. PDTB143EUX
- Part No.:
- PDTB143EUX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PDTB143EUX.pdf
- Description:
- TRANS PREBIAS PNP 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:4,251
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PDTB143EUX from Nexperia is a PNP resistor-equipped transistor (RET) in SOT323 (SC-70) package, designed for digital switching applications requiring integrated biasing. It delivers −500 mA output current at −50 V VCEO, features 4.7 kΩ input bias resistor (R1) and 4.7 kΩ base-emitter resistor (R2), and supports high-temperature operation up to 175 °C in automotive control modules.
For engineers reviewing the PDTB143EUX datasheet, PDTB143EUX pinout, PDTB143EUX application, or PDTB143EUX equivalent, key selection criteria include its AEC-Q101 qualification, ±10 % R2/R1 ratio tolerance, −100 mV VCE(sat) at −50 mA/−2.5 mA, VI(on)/VI(off) voltage thresholds, and compatibility with 3.3 V/5 V logic-driven load switching.
Technical Context
This RET integrates a PNP bipolar transistor with two precision on-die resistors: R1 (4.7 kΩ) connected between input and base, and R2 (4.7 kΩ) between base and emitter. The fixed R2/R1 ratio of 1.0 enables predictable turn-on behavior without external bias network design.
It operates as a single-stage digital switch with guaranteed −500 mA sink capability, −50 V breakdown rating, and stable hFE = 60 (typ.) at −50 mA/−5 V, optimized for low-power logic interfacing in space-constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum collector-emitter voltage before breakdown; ensures robustness in 24 V automotive supply rails. |
| IO | −500 mA - Continuous output current capability; supports driving medium-power relays or LEDs directly. |
| R1 / R2 | 4.7 kΩ / 4.7 kΩ - Integrated bias resistors eliminate need for external components; simplifies layout and reduces BOM count. |
| VCE(sat) | −100 mV @ −50 mA/−2.5 mA - Low saturation voltage minimizes power loss and heat generation during conduction. |
| hFE | 60 (min) @ −50 mA/−5 V - DC current gain sufficient for reliable logic-level drive without additional amplification stages. |
| Tj max | 175 °C - Junction temperature rating enables use in under-hood automotive environments and industrial enclosures. |
| AEC-Q101 | Qualified - Meets stress-test requirements for discrete semiconductors in automotive applications. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package: 1.3 mm × 1.8 mm footprint, 0.95 mm height, 3-terminal leadframe with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base connection via R1) | Logic signal entry point; current-limited by internal 4.7 kΩ resistor to prevent base overdrive. |
| 2 | GND (emitter) | Reference node for both input and output; connects to system ground or low-side return path. |
| 3 | Output (collector) | Sinks load current to pin 2; rated for −500 mA continuous and −50 V blocking. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in bias resistors | Eliminates 2 external resistors per switch, reducing PCB area and assembly cost in multi-channel driver designs. |
| ±10 % R2/R1 tolerance | Ensures consistent VI(on)/VI(off) thresholds across production lots, critical for deterministic logic-level interfacing. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards. |
| High-temperature operation | Rated for continuous operation at ambient temperatures up to +175 °C, supporting engine control unit (ECU) placement. |
| Low VCE(sat) | −100 mV at rated current enables <10 mW conduction loss, minimizing thermal impact in dense power sections. |
Applications
| Automotive Body Control Module | Industrial PLC Output Stage |
|---|---|
Use Scenario: Driving door lock actuators and interior lighting loads in 12 V/24 V vehicle electrical systems. IC Role / Device Role: High-side switch replacement in low-side sink configuration, controlled by microcontroller GPIO. Use Value: AEC-Q101 qualification and 175 °C Tj rating ensure long-term reliability in under-dash mounting locations. |
Use Scenario: Solid-state replacement for electromechanical relays in programmable logic controller digital output cards. IC Role / Device Role: Logic-level-controlled load switch interfacing with 3.3 V or 5 V FPGA/CPLD I/O banks. Use Value: Integrated R1/R2 eliminates discrete bias network, reducing component count and improving channel density per board area. |
| Consumer Appliance Motor Driver | Medical Diagnostic Equipment Fan Control |
Use Scenario: Controlling small DC brush motors in smart home appliances such as HVAC dampers or coffee grinders. IC Role / Device Role: Digital switch enabling PWM-based speed regulation with minimal external circuitry. Use Value: −500 mA current capability and −100 mV VCE(sat) support efficient motor drive without heatsinking in compact enclosures. |
Use Scenario: Regulating cooling fans in portable ultrasound or patient monitor systems requiring low EMI and silent operation. IC Role / Device Role: Low-noise, logic-compatible switch for fan enable/disable control in safety-critical subsystems. Use Value: Stable VI(on)/VI(off) thresholds ensure clean switching transitions, preventing fan flutter or unintended startup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP resistor-equipped transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTB143XU | R2 = 10 kΩ (vs. 4.7 kΩ), R2/R1 = 2.13 (vs. 1.0); higher VI(off) threshold (−1.1 V max). | Better noise immunity in noisy industrial environments; slightly slower turn-off due to higher R2. | Select when higher off-state margin is required and lower hFE sensitivity is acceptable. |
| BC807-40 | Discrete PNP BJT without built-in resistors; requires external RB and RBE; hFE = 250–630 (wider spread). | Greater design flexibility but increases component count, layout area, and calibration effort. | Choose only when precise bias tuning or higher gain variability is needed beyond RET constraints. |
Compared with PDTB143XU, PDTB143EUX offers tighter R2/R1 matching (1.0 vs. 2.13) for more predictable VI(on)/VI(off), while BC807-40 demands full external bias design but provides wider hFE range for analog gain-critical uses.
Availability
PDTB143EUX is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, consumer appliance motor drivers, and medical diagnostic equipment fan control requiring stable component supply across extended temperature ranges.
Supply support for PDTB143EUX 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, logic, and MOSFET devices for automotive, industrial, and consumer markets.
PDTB143EUX belongs to the PDTB1xxxU series of resistor-equipped transistors, engineered specifically to replace discrete BJT + bias resistor combinations in digital switching applications where space, reliability, and AEC-Q101 compliance are critical.
FAQ
What is the maximum continuous collector current for PDTB143EUX?
The maximum continuous collector current is −500 mA, specified at Tamb ≤ 25 °C on a standard FR4 PCB with single-sided copper. Derating applies above 25 °C per the power derating curve; at 100 °C ambient, usable current drops to approximately −350 mA with adequate PCB copper area.
Does PDTB143EUX require external base resistors?
No. PDTB143EUX integrates both R1 (4.7 kΩ) and R2 (4.7 kΩ) on-die, eliminating the need for external bias resistors. This reduces PCB footprint, assembly steps, and BOM cost while ensuring consistent switching behavior across units and temperature.
Is PDTB143EUX suitable for 3.3 V logic interfacing?
Yes. With VI(on) = −1.0 to −2.2 V (typ. −1.7 V) and VI(off) = −0.6 to −1.5 V (typ. −0.9 V), PDTB143EUX reliably switches on with 3.3 V CMOS outputs and remains off with 0 V or floating inputs, meeting standard TTL/CMOS logic thresholds.
How does PDTB143EUX differ from the BC807 series?
PDTB143EUX integrates bias resistors and is AEC-Q101 qualified, whereas BC807-40 is a bare PNP transistor requiring external biasing and lacks automotive qualification. PDTB143EUX offers tighter parameter control (e.g., ±10 % R2/R1) and simplified design, while BC807 provides higher hFE range and analog flexibility.
PDTB143EUX 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:
- PNP - 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:
- 140 MHz
- Power - Max:
- 300 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PDTB143EUX FAQ
1.How can I place an order for PDTB143EUX through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTB143EUX 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 PDTB143EUX reliable?
The price and inventory of PDTB143EUX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTB143EUX is usually 5 days.
3.What payment methods are accepted for PDTB143EUX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTB143EUX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTB143EUX?
PDTB143EUX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTB143EUX 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 PDTB143EUX?
For technical support, including PDTB143EUX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTB143EUX requirements.
6.How does Aetrix verify that PDTB143EUX is sourced from the original manufacturer or authorized distributors?
All PDTB143EUX 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 PDTB143EUX meets industry standards.
7.What is the process for return or replacement of PDTB143EUX?
All PDTB143EUX units undergo pre-shipment inspection (PSI). If there is an issue with PDTB143EUX, 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 PDTB143EUX part is unused and in its original packaging.
Return procedure for PDTB143EUX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTB143EUX Tags
-
MUN5211T1G
onsemi
-
DTC043ZEBTL
Rohm Semiconductor
-
DTC114EKAT146
Rohm Semiconductor
-
DDTD113ZC-7-F
Diodes Incorporated
-
DRDNB16W-7
Diodes Incorporated
-
PDTC114ET,215
Nexperia USA Inc.
-
PDTC143ZT,215
Nexperia USA Inc.
-
PDTC143ET,215
Nexperia USA Inc.
-
PDTC143XT,215
Nexperia USA Inc.
-
MMUN2211LT1G
onsemi
-
PDTC144ET,215
Nexperia USA Inc.
-
PDTC124ET,215
Nexperia USA Inc.
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
